Yamaha Mio Service Manual
Yamaha Mio Service Manual
Yamaha Mio Service Manual
SERVICE MANUAL
5TL-F8197-E0
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AL115 SERVICE MANUAL 2003 by Yamaha Motor Co., Ltd. First edition, July 2003 All rights reserved. Any reproduction or unauthorized use without the written permission of Yamaha Motor Co., Ltd. is expressly prohibited.
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NOTICE
This manual was produced by the Yamaha Motor Company, Ltd. primarily for use by Yamaha dealers and their qualified mechanics. It is not possible to include all the knowledge of a mechanic in one manual. Therefore, anyone who uses this book to perform maintenance and repairs on Yamaha vehicles should have a basic understanding of mechanics and the techniques to repair these types of motorcycle. Repair and maintenance work attempted by anyone without this knowledge is likely to render the motorcycle unsafe and unfit for use. Yamaha Motor Company, Ltd. is continually striving to improve all of its models. Modifications and significant changes in specifications or procedures will be forwarded to all authorized Yamaha dealers and will appear in future editions of this manual where applicable. NOTE: Designs and specifications are subject to change without notice.
_
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CAUTION: NOTE:
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SYMBOLS
The following symbols are not relevant to every vehicle. Symbols 1 to 8 indicate the subject of each chapter.
1 General information 2 Specifications 3 Periodic checks and adjustments 4 Engine 5 Carburetor 6 Chassis 7 Electrical system 8 Troubleshooting
GEN INFO
3
SPEC
4
CHK ADJ
5
ENG
6
CARB
7
CHAS
8
+
ELEC
9
TRBL SHTG
0
T.
R.
Symbols G to L in the exploded diagrams indicate the types of lubricants and lubrication points.
M
G Engine oil H Gear oil I Molybdenum-disulfide oil J Wheel-bearing grease K Lithium-soap-based grease L Molybdenum-disulfide grease
E
J
B
G
K
LS
L
M
LT
New
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TABLE OF CONTENTS
GENERAL INFORMATION SPECIFICATIONS PERIODIC CHECKS AND ADJUSTMENTS ENGINE CARBURETOR CHASSIS ELECTRICAL SYSTEM TROUBLESHOOTING
GEN INFO
1 2 3 4 5 6
+
SPEC
CHK ADJ
ENG
CARB
CHAS
ELEC
7 8
TRBL SHTG
GEN INFO
CHAPTER 1 GENERAL INFORMATION
MOTORCYCLE IDENTIFICATION ..................................................................1-1 VEHICLE IDENTIFICATION NUMBER .....................................................1-1 ENGINE SERIAL NUMBER ...................................................................... 1-1 IMPORTANT INFORMATION ......................................................................... 1-2 PREPARATION FOR REMOVAL AND DISASSEMBLY........................... 1-2 REPLACEMENT PARTS...........................................................................1-2 GASKETS, OIL SEALS AND O-RINGS .................................................... 1-2 LOCK WASHERS/PLATES AND COTTER PINS ..................................... 1-3 BEARINGS AND OIL SEALS .................................................................... 1-3 CIRCLIPS ..................................................................................................1-3 CHECKING THE CONNECTIONS ..................................................................1-4 SPECIAL TOOLS ............................................................................................ 1-5
GEN INFO
MOTORCYCLE IDENTIFICATION
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GEN INFO
GENERAL INFORMATION
MOTORCYCLE IDENTIFICATION
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VEHICLE IDENTIFICATION NUMBER The vehicle identification number 1 stamped into the frame.
is
ENGINE SERIAL NUMBER The engine serial number 1 is stamped into the crankcase. NOTE: Designs and specifications are subject to change without notice.
1-1
IMPORTANT INFORMATION
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GEN INFO
IMPORTANT INFORMATION
PREPARATION FOR REMOVAL AND DISASSEMBLY 1. Before removal and disassembly, remove all dirt, mud, dust and foreign material. 2. Use only the proper tools and cleaning equipment. Refer to the SPECIAL TOOLS. 3. When disassembling, always keep mated parts together. This includes gears, cylinders, pistons and other parts that have been mated through normal wear. Mated parts must always be reused or replaced as an assembly. 4. During disassembly, clean all of the parts and place them in trays in the order of disassembly. This will speed up assembly and allow for the correct installation of all parts. 5. Keep all parts away from any source of fire.
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REPLACEMENT PARTS Use only genuine Yamaha parts for all replacements. Use oil and grease recommended by Yamaha for all lubrication jobs. Other brands may be similar in function and appearance, but inferior in quality.
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GASKETS, OIL SEALS AND O-RINGS 1. When overhauling the engine, replace all gaskets, seals and O-rings. All gasket surfaces, oil seal lips and O-rings must be cleaned. 2. During reassembly, properly oil all mating parts and bearings and lubricate the oil seal lips with grease.
1-2
IMPORTANT INFORMATION
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GEN INFO
LOCK WASHERS/PLATES AND COTTER PINS After removal, replace all lock washers/plates 1 and cotter pins. After the bolt or nut has been tightened to specification, bend the lock tabs along a flat of the bolt or nut.
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BEARINGS AND OIL SEALS Install bearings and oil seals so that the manufacturers marks or numbers are visible. When installing oil seals, lubricate the oil seal lips with a light coat of lithium-soap-based grease. Oil bearings liberally when installing, if appropriate.
1 Oil seal
CAUTION:
_
Do not spin the bearing with compressed air because this will damage the bearing surfaces.
1 Bearing
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CIRCLIPS Before reassembly, check all circlips carefully and replace damaged or distorted circlips. Always replace piston pin clips after one use. When installing a circlip 1, make sure the sharp-edged corner 2 is positioned opposite the thrust 3 that the circlip receives.
4 Shaft
1-3
GEN INFO
3. Check: all connections Loose connection Connect properly. NOTE: If the pin 1 on the terminal is flattened, bend it up.
_
4.
_
NOTE: Make sure all connections are tight. 5. Check: continuity (with the pocket tester) Pocket tester 90890-03112 NOTE: If there is no continuity, clean the terminals. When checking the wire harness, perform steps (1) to (3). As a quick remedy, use a contact revitalizer available at most part stores.
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1-4
SPECIAL TOOLS
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GEN INFO
SPECIAL TOOLS
The following special tools are necessary for complete and accurate tune-up and assembly. Use only the appropriate special tools as this will help prevent damage caused by the use of inappropriate tools or improvised techniques. Special tools, part numbers or both may differ depending on the country. When placing an order, refer to the list provided below to avoid any mistakes. Tool No.
Weight 90890-01084 Slide hammer bolt 90890-01085
Tool name/Usage
Weight Slide hammer bolt
Illustration
These tools are used when removing or installing the rocker arm shafts. Fork seal driver weight
90890-01184 This tool is used to installing the oil seal. Fork seal driver attachment 90890-01186 This tool is used to installing the oil seal. Flywheel puller 90890-01189 This tool is used for removing the A.C. magneto rotor. Rotor holding tool 90890-01235
This tool is used to hold the A.C. magneto rotor when removing or installing the A.C. magneto rotor nut. Valve spring compressor Valve spring compressor attachment
These tools are used when removing or installing the valve and the valve spring. Ring nut wrench
90890-01268 This tool is used to loosen and tighten the steering ring nut.
1-5
SPECIAL TOOLS
Tool No. Tool name/Usage
Tappet adjusting tool 90890-01311 This tool is necessary for adjusting valve clearance. Fuel level gauge 90890-01312 This gauge is used to measure the fuel level in the float chamber. T-handle 90890-01326
GEN INFO
Illustration
This tool is used for holding the damper rod holder when removing or installing the damper rod holder. Clutch spring holder
90890-01337 This tool is used to disassembly and assembly the secondary sheave. Oil seal guide 90890-01384 This tool is used to install oil seals. Steering nut wrench 90890-01403 This tool is used to loosen and tighten the steering ring nut. Socket wrench 90890-01493
This tool is used to loosen and tighten the clutch carrier locknut of the secondary sheave. Sheave holder
90890-01701 This tool is used for holding the primary sheave and secondary sheave.
1-6
SPECIAL TOOLS
Tool No. Tool name/Usage
Compression gauge 90890-03081 These tools are used to measure the engine compression. Pocket tester 90890-03112 These instruments are invaluable for checking the electrical system. Engine tachometer 90890-03113 This tool is needed for detecting engine rpm. Valve guide remover (5) 90890-04097 This tool is needed to remove and install the valve guide. Valve guide installer (5) 90890-04098 This tool is needed to install the valve guide. Valve guide reamer (5) 90890-04099 This tool is needed to rebore the new valve guide. Valve lapper 90890-04101 This tool is used for lapping the valve. Ignition checker 90890-06754 This instrument is necessary for checking the ignition system components.
GEN INFO
Illustration
1-7
SPECIAL TOOLS
Tool No. Tool name/Usage
Yamaha bond No. 1215 90890-85505 This sealant (bond) is used for crankcase mating surface, etc.
GEN INFO
Illustration
1-8
SPEC
CHAPTER 2 SPECIFICATIONS
GENERAL SPECIFICATIONS ........................................................................ 2-1 ENGINE SPECIFICATIONS ............................................................................2-2 CHASSIS SPECIFICATIONS ..........................................................................2-9 ELECTRICAL SPECIFICATIONS .................................................................2-12 CONVERSION TABLE .................................................................................. 2-15 GENERAL TIGHTENING TORQUE SPECIFICATIONS ...............................2-15 TIGHTENING TORQUES .............................................................................. 2-16 ENGINE TIGHTENING TORQUES......................................................... 2-16 CHASSIS TIGHTENING TORQUES.......................................................2-18 LUBRICATION POINTS AND LUBRICANT TYPES .................................... 2-20 ENGINE LUBRICATION POINTS AND LUBRICANT TYPES ................ 2-20 CHASSIS LUBRICATION POINTS AND LUBRICANT TYPES .............. 2-21 CABLE ROUTING ......................................................................................... 2-22
SPEC
GENERAL SPECIFICATIONS
SPEC
SPECIFICATIONS
GENERAL SPECIFICATIONS
Model Model code Dimensions Overall length Overall width Overall height Seat height Wheelbase Minimum ground clearance Minimum turning radius Weight Wet (with oil and full fuel tank) Maximum load* * Total weight of rider, passenger, cargo and accessories 5LT1 1,820 mm (71.7 in) 675 mm (26.6 in) 1,050 mm (41.3 in) 745 mm (29.3 in) 1,240 mm (48.8 in) 130 mm (5.12 in) 1,800 mm (70.9 in) 90 kg (198 lb) 168 kg (370 lb) AL115
2-1
SPEC
Limit ---------------------------------------------------------0.23 mm (0.0091 in) 0.25 mm (0.0098 in) 0.17 mm (0.0067 in) ---------0.05 mm (0.0020 in)
2-2
ENGINE SPECIFICATIONS
Item Camshaft Drive system Intake camshaft lobe dimensions Standard Chain drive (left)
SPEC
Limit ----
25.881 ~ 25.981 mm (1.0189 ~ 1.0229 in) 25.780 mm (1.0150 in) 21.195 ~ 21.295 mm (0.8344 ~ 0.8384 in) 21.095 mm (0.8305 in)
25.841 ~ 25.941 mm (1.0174 ~ 1.0213 in) 25.740 mm (1.0134 in) 21.050 ~ 21.150 mm (0.8287 ~ 0.8327 in) 20.950 mm (0.8248 in) ---0.03 mm (0.0012 in)
Timing chain Timing chain type/No. of links Rocker arm/rocker arm shaft Rocker arm inside diameter Rocker arm shaft outside diameter Rocker-arm-to-rocker-arm shaft clearance
----
10.000 ~ 10.015 mm (0.3937 ~ 0.3943 in) 10.030 mm (0.3949 in) 9.981 ~ 9.991 mm (0.3930 ~ 0.3933 in) 9.950 mm (0.3917 in) 0.009 ~ 0.034 mm (0.0004 ~ 0.0013 in) 0.08 mm (0.0031 in)
2-3
ENGINE SPECIFICATIONS
Item Valve, valve seat, valve guide Valve clearance (cold) Valve dimensions
B A C
SPEC
Limit -------
Standard IN EX 0.06 ~ 0.10 mm (0.0024 ~ 0.0039 in) 0.08 ~ 0.12 mm (0.0031 ~ 0.0047 in)
Head Diameter
Face Width
Seat Width
Margin Thickness
IN EX IN EX IN EX
22.9 ~ 23.1 mm (0.9016 ~ 0.9094 in) 19.9 ~ 20.1 mm (0.7835 ~ 0.7913 in) 1.20 ~ 2.50 mm (0.0472 ~ 0.0984 in) 1.30 ~ 2.40 mm (0.0512 ~ 0.0945 in) 0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in) 0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in) 0.7 mm (0.0276 in) 1.0 mm (0.0394 in) 4.970 ~ 4.985 mm (0.1957 ~ 0.1963 in) 4.955 ~ 4.970 mm (0.1951 ~ 0.1957 in) 5.000 ~ 5.012 mm (0.1969 ~ 0.1973 in) 5.000 ~ 5.012 mm (0.1969 ~ 0.1973 in) 0.015 ~ 0.042 mm (0.0006 ~ 0.0017 in) 0.030 ~ 0.057 mm (0.0012 ~ 0.0022 in) ----
IN EX IN EX
IN EX
IN EX
------------1.6 mm (0.0630 in) 1.6 mm (0.0630 in) ------4.930 mm (0.1941 in) 4.920 mm (0.1937 in) 5.050 mm (0.1988 in) 5.050 mm (0.1988 in) 0.080 mm (0.0031 in) 0.110 mm (0.0043 in) 0.01 mm (0.0004 in)
2-4
ENGINE SPECIFICATIONS
Item Valve springs Free length Intake Exhaust Installed length (valve closed) Intake Exhaust Compressed spring force (installed) Intake Exhaust Spring tilt Standard
SPEC
Limit
24.1 mm (0.95 in) 24.1 mm (0.95 in) 146 ~ 168 N (14.9 ~ 17.1 kgf, 32.8 ~ 37.7 lb) 146 ~ 168 N (14.9 ~ 17.1 kgf, 32.8 ~ 37.7 lb)
Intake Exhaust Winding direction (top view) Intake Exhaust Cylinder Bore Max. taper Max. out-of-round Warp limit
-------
Clockwise Clockwise
50.000 ~ 50.010 mm (1.9685 ~ 1.9689 in) ------0.05 mm (0.0020 in) ---0.05 mm (0.0020 in) ---0.05 mm (0.0020 in)
2-5
ENGINE SPECIFICATIONS
Item Piston Piston-to-cylinder clearance Diameter D Standard
SPEC
Limit
H D
Height H Piston pin bore (in the piston) Diameter Offset Offset direction Piston pin Outside diameter Piston-pin-to-piston-pin-bore clearance Piston rings Top ring
T
5 mm (0.20 in)
----
15.002 ~ 15.013 mm (0.5906 ~ 0.5911 in) 15.043 mm (0.5922 in) 0.5 mm (0.020 in) ---Intake side ---14.995 ~ 15.000 mm (0.5904 ~ 0.5906 in) 14.975 mm (0.5896 in) 0.002 ~ 0.018 mm (0.0001 ~ 0.0007 in) 0.068 mm (0.0027 in)
Ring type Dimensions (B T) End gap (installed) Ring side clearance 2nd ring
T B
Barrel 1.00 1.95 mm (0.039 0.077 in) 0.10 ~ 0.25 mm (0.004 ~ 0.010 in) 0.03 ~ 0.07 mm (0.0012 ~ 0.0028 in)
Taper 1.0 2.0 mm (0.039 0.079 in) 0.10 ~ 0.25 mm (0.004 ~ 0.010 in) 0.02 ~ 0.06 mm (0.0008 ~ 0.0024 in)
2-6
ENGINE SPECIFICATIONS
Item Oil ring
B T
SPEC
Limit
Standard
2.00 2.25 mm (0.079 0.089 in) 0.20 ~ 0.70 mm (0.008 ~ 0.028 in)
-------
E D A
Crank width A Max. runout C Big end side clearance D Big end radial clearance E Clutch type Automatic centrifugal clutch Clutch shoe thickness Clutch shoe spring free length Clutch housing inside diameter Compression spring free length Weight outside diameter Clutch - in revolution Clutch - stall revolution V-belt V-belt width Transmission Transmission type Primary reduction system Primary reduction ratio Secondary reduction system Secondary reduction ratio Operation Single speed automatic
45.45 ~ 45.50 mm (1.789 ~ 1.791 in) ---0.15 ~ 0.45 mm (0.0059 ~ 0.0177 in) 0.004 ~ 0.014 mm (0.0002 ~ 0.0006 in) V-belt automatic 3.0 mm (0.12 in) 30.6 mm (1.20 in) 112 mm (4.41 in) 74.3 mm (2.93 in) 15 mm (0.59 in) 2,150 ~ 2,550 r/min 4,200 ~ 4,800 r/min 18.2 mm (0.72 in)
---0.03 mm (0.0012 in) ---------1.0 mm (0.04 in) ---112.5 mm (4.43 in) 70.6 mm (2.78 in) 14.5 mm (0.57 in) ------17.2 mm (0.68 in) ----------------------
V-belt automatic Helical gear 47/15 (3.133) Spur gear 42/13 (3.231) Centrifugal automatic type 2.399 ~ 0.829:1
2-7
ENGINE SPECIFICATIONS
Item Kickstarter Kickstarter type Kickstarter pinion gear clip friction force Air filter Air filter element Carburetor Type (manufacturer)/quantity I.D. mark Main jet (M.J) Main air jet (M.A.J) Jet needle (J.N) Needle jet (N.J) Pilot air jet 1 (P.A.J.1) Pilot air jet 2 (P.A.J.2) Pilot outlet (P.O) Pilot jet (P.J) Bypass 1 (B.P.1) Bypass 2 (B.P.2) Bypass 3 (B.P.3) Bypass 4 (B.P.4) Pilot screw turns out Valve seat size (V.S) Starter jet 1 (G.S.1) Throttle cable free play Model Lubrication chart Standard
SPEC
Limit -------
Ratchet type 1.0 ~ 3.5 N (0.10 ~ 0.36 kgf, 0.22 ~ 0.79 lb)
Dry element NCV24 (KEIHIN)/1 5TL1 00 #110 1.0 N425-DUA00 N426-62A45 #110 #100 1.0 #38 0.7 0.7 0.7 0.7 2-3/8 1.6 #40 3 ~ 7 mm (0.12 ~ 0.28 in) AL115
----------------------------------------------------------
OIL RING
PISTON
CYLINDER HEAD
CAMSHAFT
CRANKSHAFT
OIL PUMP
OIL STRAINER
OIL PAN
2-8
SPEC
Limit ---------------------2.0 mm (0.079 in) 2.0 mm (0.079 in) ------------2.0 mm (0.079 in) 2.0 mm (0.079 in) ------------0.8 mm (0.031 in)
With tube 70/90-14M/C 34P IRC/NF59 200 kPa (2.00 kgf/cm2, 29 psi) ----
2-9
CHASSIS SPECIFICATIONS
Item Rear tire Tire type Size Manufacturer/model Tire pressure (cold tire) 0 ~ 90 kg Min. tire tread depth Front brake Brake type Operation Brake lever free play (at lever end) Brake discs Diameter thickness Min. thickness Max. deflection Brake pad lining thickness-inner Brake pad lining thickness-outer Master cylinder inside diameter Caliper cylinder inside diameter Recommended fluid Rear brake Brake type Drum brake type Brake lever free play (at lever end) Drum inside diameter Lining thickness Shoe spring free length (camshaft side) Shoe spring free length (pivot side) Steering Steering bearing type Lock to lock angle (left) Lock to lock angle (right) Standard With tube 80/90-14M/C 40P IRC/NR76 225 kPa (2.25 kgf/cm2, 33 psi) ----
SPEC
Limit ------------0.8 mm (0.031 in) ------------3.0 mm (0.12 in) 0.15 mm (0.006 in) 0.8 mm (0.031 in) 0.8 mm (0.031 in) ------------------131 mm (5.16 in) 2.0 mm (0.079 in) ----------------
Single-disc brake Right-hand operation 0 mm (0 in) 200 3.5 mm (7.87 0.14 in) ------5.3 mm (0.21 in) 5.3 mm (0.21 in) 11 mm (0.43 in) 33.34 mm (1.31 in) DOT 4 Drum brake Leading, trailing 10 ~ 20 mm (0.39 ~ 0.79 in) 130 mm (5.12 in) 4.0 mm (0.16 in) 52 mm (2.05 in) 48 mm (1.89 in) Angular bearing 47.5 47.5
2 - 10
CHASSIS SPECIFICATIONS
Item Front suspension Suspension type Front fork type Front fork travel Spring Free length Installed length Spring rate (K1) Spring rate (K2) Spring stroke (K1) Spring stroke (K2) Optional spring available Fork oil Recommended oil Quantity (each front fork leg) Level (from the top of the inner tube, with the inner tube fully compressed, and without the fork spring) Inner tube outer diameter Inner tube bend limit Rear suspension Suspension type Spring/shock absorber type Rear shock absorber assembly travel Spring Free length Installed length Spring rate (K1) Spring rate (K2) Spring stroke (K1) Spring stroke (K2) Optional spring available Standard Telescopic fork Coil spring/oil damper 90 mm (3.54 in) 266.7 mm (10.50 in)
SPEC
Limit ---------261.4 mm (10.29 in) ----------------------------
256.7 mm (10.11 in) 3.90 N/mm (0.40 kgf/mm, 22.27 lb/in) 7.10 N/mm (0.72 kgf/mm, 40.54 lb/in) 0 ~ 50 mm (0 ~ 1.97 in) 50 ~ 90 mm (1.97 ~ 3.54 in) No Fork oil 10 W or equivalent 57 cm3 (2.01 Imp oz, 1.93 US oz) 88 mm (3.46 in)
Unit swing Coil spring/oil damper 78 mm (3.07 in) 249.6 mm (9.83 in) 245.6 mm (9.67 in) 28.5 N/mm (2.91 kgf/mm, 162.74 lb/in) 40.0 N/mm (4.08 kgf/mm, 228.40 lb/in) 0 ~ 50 mm (0 ~1.97 in) 50 ~ 78 mm (1.97 ~ 3.07 in) No
2 - 11
SPEC
Limit -------------------------------------------------------------------------------------
F5TL/PT. MORIC 248 ~ 372 at 20 C (68 F)/W/LW/R 5TL/PT. MORIC 4ST/PT. MORIC 6 mm (0.24 in) 0.32 ~ 0.48 at 20 C (68 F) 5.68 ~ 8.52 k at 20 C (68 F) Resin 5 k at 20 C (68 F) A.C. magneto F5TL/PT. MORIC 14 V 100 W at 5,000 r/min 0.24 ~ 0.36 at 20 C (68 F)/Y/RB 0.32 ~ 0.48 at 20 C (68 F)/WB Semi conductor-short circuit SH656-12/SHINDENGEN 14.1 ~ 14.9 V 13.0 ~ 14.0 V 8A 12 A GM5Z-3B/PT. GS or YB5L-B/PT. YUASA 12 V/5 Ah 1.280 Krypton bulb
2 - 12
ELECTRICAL SPECIFICATIONS
Item Bulbs (voltage/wattage quantity) Headlight Tail/brake light Front turn signal light Rear turn signal light Meter light Indicator light (voltage/wattage quantity) Turn signal indicator light High beam indicator light Electric starting system System type Starter motor Model/manufacturer Power output Armature coil resistance Brushes Overall length Spring force Commutator diameter Mica undercut Starter relay Model/manufacturer Amperage Coil resistance Horn Horn type Model/manufacturer quantity Max. amperage Performance Coil resistance Turn signal relay Relay type Model/manufacturer Self-cancelling device built-in Turn signal blinking frequency Wattage Fuel gauge Model/manufacturer Sender unit resistance- full Sender unit resistance- empty Standard 12 V 32 W/32 W 1 12 V 5 W/21 W 1 12 V 10 W 2 12 V 10 W 2 12 V 1.7 W 1
SPEC
Limit ----------------
12 V 1.7 W 1 12 V 1.7 W 1 Constant mesh 5TL/PT. MORIC 0.25 kW 0.032 ~ 0.039 at 20 C (68 F) 9.5 mm (0.37 in) 5.52 ~ 8.28 N (563 ~ 844 gf, 19.87 ~ 29.80 oz) 22 mm (0.87 in) 1.5 mm (0.06 in) 5TN/OMRON 50 A 54 ~ 66 at 20 C (68 F) Plane 3WE/PT. MORIC 1 1.5 A 95 ~ 105 dB/2 m 4.30 ~ 4.80 Condenser FR22-091/PT. MITSUBA No 75 ~ 95 cycles/min. 10 W 2 + 3.4 W 5TL/NIPPON SEIKI 4 ~ 10 at 20 C (68 F) 90 ~ 100 at 20 C (68 F)
2 - 13
ELECTRICAL SPECIFICATIONS
Item Fuses (amperage quantity) Fuse Reserve fuse 10 A 1 10 A 1 Standard
SPEC
Limit -------
2 - 14
SPEC
CONVERSION TABLE
All specification data in this manual are listed in SI and METRIC UNITS. Use this table to convert METRIC unit data to IMPERIAL unit data. Ex. METRIC ** mm 2 mm MULTIPLIER 0.03937 0.03937 = = IMPERIAL ** in 0.08 in
CONVERSION TABLE
METRIC TO IMPERIAL Metric unit mkg Tightening torque mkg cmkg cmkg Weight Speed kg g km/hr km m m cm mm cc (cm3) cc (cm3) lt (liter) lt (liter) kg/mm kg/cm2 Centigrade (C) Multiplier 7.233 86.794 0.0723 0.8679 2.205 0.03527 0.6214 0.6214 3.281 1.094 0.3937 0.03937 0.03527 0.06102 0.8799 0.2199 55.997 14.2234 9/5+32 Imperial unit ftlb inlb ftlb inlb lb oz mph mi ft yd in in oz (IMP lip.) cu.in qt (IMP liq.) gal (IMP liq.) lb/in psi (lb/in2) Fahrenheit (F)
Distance
A: Distance between flats B: Outside thread diameter A (nut) 10 mm 12 mm 14 mm 17 mm 19 mm 22 mm B (bolt) 6 mm 8 mm 10 mm 12 mm 14 mm 16 mm General tightening torques Nm 6 15 30 55 85 130 mkg 0.6 1.5 3.0 5.5 8.5 13.0 ftlb 4.3 11 22 40 61 94
Volume/ Capacity
Misc.
2 - 15
SPEC
Tightening torque Nm m kg ft lb 15 22 10 13 7 18 12 12 10 30 7 7 9 7 8 70 10 4 20 20 22 20 35 50 37 8 10 7 12 7 10 10 10 10 9 40 55 13 10 1.5 2.2 1.0 1.3 0.7 1.8 1.2 1.2 1.0 3.0 0.7 0.7 0.9 0.7 0.8 7.0 1.0 0.4 2.0 2.0 2.2 2.0 3.5 5.0 3.7 0.8 1.0 0.7 1.2 0.7 1.0 1.0 1.0 1.0 0.9 4.0 5.5 1.3 1.0 11 16 7.2 9.4 5.1 13 8.7 8.7 7.2 22 5.1 5.1 6.5 5.1 5.8 50 7.2 2.9 14 14 16 14 25 36 27 5.8 7.2 5.1 8.7 5.1 7.2 7.2 7.2 7.2 6.5 29 40 9.4 7.2
Remarks
LT
LT
2 - 16
TIGHTENING TORQUES
Part to be tightened Primary sheave nut Idle gear plate Starter wheel gear holder Crankcase (left and right) Crankcase stud bolt Stator coil assembly Pickup coil bracket Starter motor Ignition coil Part name Nut Bolt Bolt Bolt Bolt Bolt Screw Bolt Screw Thread Qty size M12 M6 M6 M6 M8 M6 M6 M6 M6 1 2 1 9 4 3 2 2 2
SPEC
Remarks
Tightening torque Nm m kg ft lb 50 10 10 10 13 11 7 7 7 5.0 1.0 1.0 1.0 1.3 1.1 0.7 0.7 0.7 36 7.2 7.2 7.2 9.4 8.0 5.1 5.1 5.1
2 - 17
TIGHTENING TORQUES
CHASSIS TIGHTENING TORQUES Part to be tightened Brake master cylinder Rear brake lever assembly Front brake lever Starter lever Handlebar nut Steering ring nut (upper) Steering ring nut (lower) Engine mounting nut Engine mounting rubber damper and engine bracket Engine bracket and engine assembly Rear shock absorber assembly nut Rear shock absorber assembly bolt Front wheel axle nut Rear wheel axle nut Disk brake and hub Front brake hose holder and front fork outer tube Front brake hose holder, bracket, and lower bracket Lower front brake hose holder and bracket Front brake hose holder bracket and lower bracket Speedometer cable guide and lower bracket Brake caliper upper bolt Brake caliper lower bolt Brake pad holding bolt Bleed screw Brake hose union bolt Brake camshaft lever bolt Front fender Lower bracket pinch bolt (upper and lower) Front fork cap bolt Damper rod bolt Rearview mirror Sidestand bolt Sidestand nut Rear brake cable holder Fuel tank and frame Grab bar and fuel tank Fuel cock and fuel tank Sender and fuel tank Seat Thread size M6 M6 M6 M6 M10 M25 M25 M12 M8 M10 M10 M8 M10 M14 M8 M6 M6 M6 M6 M6 M12 M8 M6 M7 M10 M6 M6 M10 M20 M10 M10 M8 M8 M6 M6 M6 M6 M5 M6
SPEC
Tightening torque Nm m kg ft lb 11 7 7 7 43 75 30 59 16 32 32 16 40 105 23 7 7 7 7 7 43 23 10 6 26 7 7 38 20 23 32 26 16 7 7 8 7 4 7 1.1 0.7 0.7 0.7 4.3 7.5 3.0 5.9 1.6 3.2 3.2 1.6 4.0 10.5 2.3 0.7 0.7 0.7 0.7 0.7 4.3 2.3 1.0 0.6 2.6 0.7 0.7 3.8 2.0 2.3 3.2 2.6 1.6 0.7 0.7 0.8 0.7 0.4 0.7 8.0 5.1 5.1 5.1 31 54 22 43 11 23 23 11 29 75 17 5.1 5.1 5.1 5.1 5.1 31 17 7.2 4.3 19 5.1 5.1 27 14 17 23 19 11 5.1 5.1 5.8 5.1 2.9 5.1
Remarks
LT
LT
LS
2 - 18
TIGHTENING TORQUES
Part to be tightened Seat lock assembly and frame Rear fender Rectifier/regulator Footboard and frame Leg shield and frame License plate bracket and license plate stay License plate stay and frame Horn bracket and license plate stay Main switch and frame Spoke Thread size M6 M6 M6 M6 M6 M6 M6 M6 M6
SPEC
Remarks
Tightening torque Nm m kg ft lb 7 8 7 7 7 7 7 7 7 3 0.7 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.3 5.1 5.8 5.1 5.1 5.1 5.1 5.1 5.1 5.1 2.2
NOTE: 1. First tighten the ring nut (lower) 30 Nm (3.0 m kg, 22 ft lb) by using the torque wrench, then loosen the ring nut quarter turn. 2. Then, hold the ring nuts (lower) and tighten the ring nut (upper) 75 Nm (7.5 m kg, 54 ft lb) by using the torque wrench.
2 - 19
LUBRICATION POINTS AND LUBRICANT TYPES LUBRICATION POINTS AND LUBRICANT TYPES
ENGINE LUBRICATION POINTS AND LUBRICANT TYPES Lubrication point Oil seal lips O-rings Bearings Piston outside and ring groove Piston ring Piston pin Cylinder inner surface Timing chain Rocker arm shaft Rocker arm inner surfaces Camshaft lobes and camshaft journals Valve stem Valve stem seal Oil pump assembly Kickstarter pinion gear shaft Primary sliding sheave inner surface Secondary sheave guide pin Secondary fixed sheave inner surface Secondary sliding surface Idle gear shaft Centerstand pivot Sidestand pivot Crankcase mating surfaces
SPEC
Lubricant
LS LS
E
M
M
LS
Shell Dolium Grease R Shell Dolium Grease R Shell Dolium Grease R Shell Dolium Grease R
LS LS LS
2 - 20
SPEC
Lubricant
LS LS LS LS LS LS LS LS LS LS LS LS
2 - 21
CABLE ROUTING
EAS00035
SPEC
CABLE ROUTING
1 Front brake light switch lead 2 Right handlebar switch lead 3 Rear brake cable 4 Left handlebar switch lead 5 Rear brake light switch leads 6 Starter cable 7 Wire harness 8 Speedometer cable 9 Front brake hose 0 Throttle cable Connect the meter assembly coupler on the left side of the meter assembly. Route the left handlebar switch lead behind the handlebar, and then connect it on the left side of the meter assembly. To the headlight
1 2
4 5
A A
6 0 9 7 8
6 0 9 3 7 A-A 8
2 - 22
CABLE ROUTING
Pass the wire harness and speedometer cable through the guide, and then install the grommet on the front brake hose in the holder. Route the front brake light switch lead behind the front brake hose, and then connect it on the right side of the meter assembly. Route the right handlebar switch lead behind the handlebar, and then connect it on the right side of the meter assembly.
SPEC
1 2
4 5
A A
6 0 9 7 8
6 0 9 3 7 A-A 8
2 - 23
CABLE ROUTING
1 Wire harness 2 Speedometer cable 3 Front brake hose 4 Starter cable 5 Rear brake cable 6 Throttle cable 7 Cylinder head breather hose 8 Starter motor lead 9 Negative battery lead 0 Main switch lead A Turn signal relay B Horn leads
SPEC
Pass the speedometer cable through the cable guide as shown. Fasten the starter cable, rear brake cable, and throttle cable with the holder. Pass the rear brake cable through the cable guide. Fasten the starter motor lead with the holder.
3 1 A
5 6 4 2 B
4 5 A
B
0 1 3 2 1
3 1 2 2 C-C 6
4 5
4 5 6 8 7
2 - 24
CABLE ROUTING
Pass the starter motor lead through the hole in the storage box. Fasten the main switch lead, starter cable, rear brake cable, and throttle cable with the holder. To the turn signal lights
SPEC
3 1 A
5 6 4 2 B
4 5 A
B
0 1 3 2 1
3 1 2 2 C-C 6
4 5
4 5 6 8 7
2 - 25
CABLE ROUTING
1 Starter cable 2 Throttle cable 3 Fuel hose 4 Vacuum hose 5 Starter motor lead 6 Fuel overflow hose 7 Rear brake cable 8 Cylinder head breather hose
SPEC
Pass the fuel hose and vacuum hose through the hole in the rear fender. Route the fuel overflow hose as shown. Pass the fuel overflow hose through the hole in the bottom cowling. Fasten the rear brake cable with the holder.
7 A-A
1 2
3 4
2 - 26
CABLE ROUTING
1 Positive battery lead 2 Starter relay lead 3 Fuse lead 4 Battery breather hose 2 5 Wire harness 6 Main switch lead 7 Turn signal light leads 8 Turn signal relay lead 9 Horn leads 0 Front brake hose A Battery breather hose 1
SPEC
B Front turn signal light lead (left) C Front turn signal light lead (right) Install the battery breather 1 hose to the battery. Install the battery breather 2 hose to the storage box. Pass the positive battery lead, fuse lead, and starter relay lead through the hole in the storage box. Fasten the fuse lead, starter relay lead, and positive battery lead with the holder.
A 4 A-A
C 78 9 6
B
C
5
A
1 2 3 4
2 - 27
CABLE ROUTING
Fasten the wire harness with the holders. Fasten the grommet on the wire harness with the holder as shown. Pass the front brake hose through the hose guides. To the turn signal lights Pass the battery breather hose 2 through the hole in the bottom cowling. Pass the battery breather hose 2 through the hose guides on the footboard.
SPEC
Route the front turn signal light lead (left) between the front turn signal light (left) and the screw support on the front cowling as shown. Install the front turn signal light lead couplers in the holders on the front cowling.
A 4 A-A
C 78 9 6
B
C
5
A
1 2 3 4
2 - 28
CABLE ROUTING
1 Tail/brake light assembly 2 Tail/brake light assembly coupler 3 Fuel sender lead 4 A.C. magneto lead couplers 5 Spark plug lead 6 Ignition coil 7 Negative battery lead 8 Ignition coil lead 9 A.C. magneto lead 0 Wire harness A Rectifier/regulator B C.D.I. unit C Positive battery lead D Starter relay lead E Fuse lead F Fuse G Starter relay H Starter motor lead
SPEC
Fasten the wire harness with the holders. Pass the fuel sender lead through the hole in the fuel tank rubber damper.
CD E
3 H 4 B 7 G
B A 1 0 9 3 8 7 6
B
2 - 29
CABLE ROUTING
Fasten the tail/brake light lead and rear turn signal light lead (left) with the holder. Fasten the fuse lead, starter relay lead, and positive battery lead with the holder. To the starter motor Fasten the starter motor lead with the holder. To the ignition coil To the A.C. magneto
SPEC
CD E
3 H 4 B 7 G
B A 1 0 9 3 8 7 6
B
2 - 30
CABLE ROUTING
1 Wire harness 2 Spark plug lead 3 Ignition coil 4 Ignition coil lead 5 A.C. magneto lead 6 Negative battery lead 7 Starter motor 8 Starter motor lead 9 Vacuum hose 0 Fuel hose A Cylinder head breather hose B Throttle cable C Starter cable D Rear brake cable E Spark plug lead
SPEC
D C B 1 E
A-A A
A A
2 3 4
0 9 8 5 6 7
2 - 31
CABLE ROUTING
Fasten the wire harness with the holders. Route the cylinder head breather hose as shown. Pass the A.C. magneto lead, ignition coil lead, and negative battery lead through the guide on the air filter case. Route the fuel hose between the vacuum hose and both the starter cable and throttle cable as shown. Pass the starter cable and throttle cable through the cable guide.
SPEC
Fasten the throttle cable at the white mark and the starter cable grommet with the holder. Install the spark plug cap securely so that there is no space between the rubber seal on the spark plug cap and the air shroud.
D C B 1 E
A-A A
A A
2 3 4
0 9 8 5 6 7
2 - 32
CHK ADJ
CHAPTER 3 PERIODIC CHECKS AND ADJUSTMENTS
INTRODUCTION.............................................................................................. 3-1 PERIODIC MAINTENANCE AND LUBRICATION CHART ............................ 3-1 COVERS ..........................................................................................................3-3 REMOVING THE SEAT AND SIDE COVERS .......................................... 3-3 INSTALLING THE SEAT AND SIDE COVERS......................................... 3-3 REMOVING THE FRONT COWLING AND LEG SHIELD ........................3-4 INSTALLING THE FRONT COWLING AND LEG SHIELD .......................3-6 REMOVING THE HEADLIGHT ASSEMBLY.............................................3-7 INSTALLING THE HEADLIGHT ASSEMBLY ...........................................3-7 ENGINE ...........................................................................................................3-8 ADJUSTING THE VALVE CLEARANCE .................................................. 3-8 ADJUSTING THE ENGINE IDLING SPEED ...........................................3-10 ADJUSTING THE THROTTLE CABLE FREE PLAY ..............................3-12 CHECKING THE SPARK PLUG ............................................................. 3-13 MEASURING THE COMPRESSION PRESSURE..................................3-14 CHECKING THE ENGINE OIL LEVEL....................................................3-16 CHANGING THE ENGINE OIL ...............................................................3-17 CHANGING THE TRANSMISSION OIL.................................................. 3-18 CLEANING THE AIR FILTER ELEMENT................................................ 3-19 CHECKING THE V-BELT........................................................................3-20 CLEANING THE V-BELT CASE AIR FILTER ELEMENT .......................3-21 CHECKING THE CARBURETOR JOINT AND INTAKE MANIFOLD...... 3-22 CHECKING THE FUEL AND VACUUM HOSES .................................... 3-23 CHECKING THE BREATHER HOSES ...................................................3-23 CHECKING THE EXHAUST SYSTEM....................................................3-24 CHASSIS ....................................................................................................... 3-25 ADJUSTING THE REAR BRAKE............................................................ 3-25 CHECKING THE BRAKE FLUID LEVEL................................................. 3-25 CHECKING THE FRONT BRAKE PADS ................................................ 3-26 CHECKING THE REAR BRAKE SHOES................................................ 3-27 CHECKING THE FRONT BRAKE HOSE................................................ 3-27 BLEEDING THE HYDRAULIC BRAKE SYSTEM ................................... 3-27 CHECKING AND ADJUSTING THE STEERING HEAD ......................... 3-29 CHECKING THE FRONT FORK ............................................................. 3-31 CHECKING THE TIRES..........................................................................3-31 CHECKING THE WHEELS ..................................................................... 3-34 CHECKING AND TIGHTENING THE SPOKES...................................... 3-34 CHECKING AND LUBRICATING THE CABLES .................................... 3-35 LUBRICATING THE LEVERS .................................................................3-35 LUBRICATING THE SIDESTAND........................................................... 3-35 LUBRICATING THE CENTERSTAND ....................................................3-36
CHK ADJ
ELECTRICAL SYSTEM................................................................................. 3-37 CHECKING AND CHARGING THE BATTERY....................................... 3-37 CHECKING THE FUSE...........................................................................3-41 REPLACING THE HEADLIGHT BULB....................................................3-42 ADJUSTING THE HEADLIGHT BEAM ...................................................3-43
CHK ADJ
* Fuel line
Spark plug
* Front brake
8 9 10 11
12 13 14 15 16 17 18 19
* Chassis fasteners Sidestand/centerstand * Front fork Shock absorber * assembly * Carburetor Engine oil * Engine oil strainer Final transmission oil * V-belt *
20 21
3-1
CHK ADJ
4 8 12
* Since these items require special tools, data and technical skills, have a Yamaha dealer perform the service.
NOTE: G From 16,000 km (10,000 mi), repeat the maintenance intervals starting from 4,000 km (2,500 mi). G Depending on riding conditions, the V-belt replacement interval may vary. G The air filter needs more frequent service if you are riding in unusually wet or dusty areas. G Hydraulic brake system After disassembling the brake master cylinder, and caliper cylinder, always change the fluid. Regularly check the brake fluid level and fill reservoir as required. Replace the oil seals on the inner parts of the brake master cylinder and caliper cylinder every two years. Replace the brake hose every four years or if cracked or damaged.
_
3-2
COVERS
EASF0004
CHK ADJ
COVERS
REMOVING THE SEAT AND SIDE COVERS 1. Remove: seat 1
3. Remove: rear panel 1 NOTE: Remove the rear panel by sliding it up in the direction of the arrow shown.
INSTALLING THE SEAT AND SIDE COVERS For installation, reverse the removal procedure. 1. Install: side cover (left and right) 1 NOTE: Before tightening the side cover screws, make sure that all projections are securely fitted.
3-3
COVERS
2. Install: rear panel 1
CHK ADJ
3. Install: seat 1
T.
R.
REMOVING THE FRONT COWLING AND LEG SHIELD 1. Remove: seat center cover rear panel side cover (left and right) Refer to REMOVING THE SEAT AND SIDE COVERS.
1 3
2.
NOTE: Disconnect the front turn signal light couplers (left and right) 3.
3-4
COVERS
3. Remove: bottom cowling 1
CHK ADJ
1
4. Remove: front bottom cowling 1
2
6. Remove: main switch cover 1 leg shield 2
2 1
NOTE: Remove the main switch cover by turning it in the direction of the arrow shown.
3-5
COVERS
CHK ADJ
INSTALLING THE FRONT COWLING AND LEG SHIELD For installation, reverse the removal procedure. 1. Install: footboard 1 battery breather hose 2 2 Refer to CABLE ROUTING in chapter 2.
3. Install: bottom cowling 1 NOTE: Be sure to pass the battery breather hose 2 2 through the hole in the bottom cowling.
2 3
4.
NOTE: Connect the front turn signal light couplers (left and right) 3, and then install the couplers in the holders on the front cowling. Refer to CABLE ROUTING in chapter 2.
3-6
COVERS
1
CHK ADJ
1 1 1
INSTALLING THE HEADLIGHT ASSEMBLY For installation, reverse the removal procedure.
3-7
CHK ADJ
ENGINE
ADJUSTING THE VALVE CLEARANCE The following procedure applies to all of the valves. NOTE: Valve clearance adjustment should be made on a cold engine, at room temperature. When the valve clearance is to be measured or adjusted, the piston must be at the Top Dead Center (TDC) on the compression stroke.
_
1.
2.
Remove: front cowling bottom cowling front bottom cowling footboard Refer to REMOVING THE FRONT COWLING AND LEG SHIELD. Remove: intake tappet cover 1 exhaust tappet cover 2 camshaft sprocket cover 3 (with O-ring)
3-8
CHK ADJ
b a
Valve clearance (cold) Intake valve 0.06 ~ 0.10 mm (0.0024 ~ 0.0039 in) Exhaust valve 0.08 ~ 0.12 mm (0.0031 ~ 0.0047 in)
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Turn the crankshaft clockwise. b. When the piston is at the Top Dead Center (TDC) on the compression stroke, align the I mark a in the camshaft sprocket with the stationary b on the cylinder head. c. Align the I mark c on the A.C. magneto rotor with the stationary pointer d on the crankcase. d. Measure the valve clearance with a thickness gauge 1. Out of specification Adjust.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
a. Loosen the locknut 1. b. Insert a thickness gauge 2 between the end of the adjusting screw and the valve tip. c. Turn the adjusting screw 3 in direction a or b until the specified valve clearance is obtained. Direction a Direction b Valve clearance is increased. Valve clearance is decreased.
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a 3
3-9
CHK ADJ
d. Hold the adjusting screw to prevent it from moving and tighten the locknut to specification. Locknut 7 Nm (0.7 m kg, 5.1 ft lb)
e. Measure the valve clearance again. f. If the valve clearance is still out of specification, repeat all of the valve clearance adjustment steps until the specified clearance is obtained.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
6. Install: rubber damper NOTE: Install the flap of the rubber damper securely in the hole in the engine cooling fan cover.
T.
R.
T.
R.
2 1 New
T.
R. R.
8.
Install: footboard front bottom cowling bottom cowling front cowling Refer to INSTALLING THE COWLING AND LEG SHIELD.
FRONT
EAS00054
ADJUSTING THE ENGINE IDLING SPEED NOTE: Prior to adjusting the engine idling speed, the air filter element should be clean, and the engine should have adequate compression.
_
3 - 10
CHK ADJ
2. Remove: seat center cover Refer to REMOVING THE SEAT AND SIDE COVERS. 3. Connect: engine tachometer (onto the spark plug lead) Engine tachometer 90890-03113 4. Check: engine idling speed Out of specification Adjust. Engine idling speed (with headlight on) 1,400 ~ 1,600 r/min 5. Adjust: engine idling speed a. Turn the pilot screw 1 in or out until it is lightly seated. b. Turn the pilot screw out the specified number of turns. Pilot screw setting 2-3/8 turns out
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
c. Remove the rubber cap 2. d. Turn the throttle stop screw 3 in direction a or b until the specified engine idling speed is obtained.
Direction a Direction b
6. Adjust: throttle cable free play Refer to ADJUSTING THE THROTTLE CABLE FREE PLAY. Throttle cable free play (at the flange of the throttle grip) 3 ~ 7 mm (0.12 ~ 0.28 in)
3 - 11
ADJUSTING THE ENGINE IDLING SPEED/ ADJUSTING THE THROTTLE CABLE FREE PLAY
CHK ADJ
7. Install: center cover seat Refer to INSTALLING THE SEAT AND SIDE COVERS.
EAS00058
ADJUSTING THE THROTTLE CABLE FREE PLAY NOTE: Prior to adjusting the throttle cable free play, the engine idling speed should be adjusted.
_
1. Check: throttle cable free play a Out of specification Adjust. Throttle cable free play (at the flange of the throttle grip) 3 ~ 7 mm (0.12 ~ 0.28 in)
a
2. Adjust: throttle cable free play a. Slide back the rubber cover 1. b. Loosen the locknut 2. c. Turn the adjusting nut 3 in direction a or b until the specified throttle cable free play is obtained. Direction a Direction b Throttle cable free play is increased. Throttle cable free play is decreased.
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
2 3
d. Tighten the locknut. e. Slide the rubber cover to its original position. WARNING
_
After adjusting the throttle cable free play, start the engine and turn the handlebar to the right or left to ensure that this does not cause the engine idling speed to change.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
3 - 12
CHK ADJ
CHECKING THE SPARK PLUG 1. Remove: seat center cover Refer to REMOVING THE SEAT AND SIDE COVERS. 2. Disconnect: spark plug cap 3. Remove: spark plug CAUTION:
_
Before removing the spark plug, blow away any dirt accumulated in the spark plug well with compressed air to prevent it from falling into the cylinder. 4. Check: spark plug type Incorrect Change. Spark plug type (manufacturer) C7HSA (NGK) 5. Check: electrode 1 Damage/wear Replace the spark plug. insulator 2 Abnormal color Replace the spark plug. Normal color is medium-to-light tan. 6. Clean: spark plug (with a spark plug cleaner or wire brush) 7. Measure: spark plug gap a (with a wire thickness gauge) Out of specification Regap. Spark plug gap 0.6 ~ 0.7 mm (0.024 ~ 0.028 in) 8. Install: spark plug
_
NOTE: Before installing the spark plug, clean the spark plug and gasket surface. 9. Connect: spark plug cap
T.
R.
3 - 13
CHK ADJ
10.Install: center cover seat Refer to INSTALLING THE SEAT AND SIDE COVERS.
EAS00067
MEASURING THE COMPRESSION PRESSURE NOTE: Insufficient compression pressure will result in a loss of performance.
_
1. Measure: valve clearance Out of specification Adjust Refer to ADJUSTING THE VALVE CLEARANCE. 2. Start the engine, warm it up for several minutes, and then turn it off. 3. Disconnect: spark plug cap 4. Remove: spark plug CAUTION:
_
Before removing the spark plug, use compressed air to blow away any dirt accumulated in the spark plug well to prevent it from falling into the cylinder.
3 - 14
CHK ADJ
6. Measure: compression pressure Out of specification Refer to steps (c) and (d). Compression pressure (at sea level) Minimum 960 kPa (9.6 kg/cm2, 136.5 psi) Standard 1,100 kPa (11 kg/cm2, 156.5 psi) Maximum 1,230 kPa (12.3 kg/cm2, 174.9 psi)
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Set the main switch to ON. b. With the throttle wide open, crank the engine until the reading on the compression gauge stabilizes. WARNING
_
To prevent sparking, ground the spark plug lead before cranking the engine. c. If the compression pressure is above the maximum specification, check the cylinder head, valve surfaces, and piston crown for carbon deposits. Carbon deposits Eliminate. d. If the compression pressure is below the minimum specification, pour a teaspoonful engine of oil into the spark plug bore and measure again. Refer to the following table. Compression pressure (with oil applied into the cylinder) Reading Higher than without oil Diagnosis Piston ring(s) wear or damage Repair. Piston, valves, cylinder head gasket or piston possibly defective Repair.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
T.
R.
3 - 15
CHK ADJ
Connect: spark plug cap Install: footboard front bottom cowling bottom cowling front cowling Refer to INSTALLING THE COWLING AND LEG SHIELD.
FRONT
EAS00070
CHECKING THE ENGINE OIL LEVEL 1. Stand the motorcycle on a level surface. NOTE: Place the motorcycle on a suitable stand. Make sure the motorcycle is upright.
_
b a 1
2. Start the engine, warm it up for several minutes, and then turn it off. 3. Remove: dipstick 1 4. Check: engine oil level The engine oil level should be between the minimum level a and maximum level b. Below the minimum level Add the recommended engine oil to the proper level. Recommended oil Refer to the chart for the engine oil grade which is best suited for certain atmospheric temperatures. API standard SE or higher grade CAUTION:
_
-20 -10
10 20 30 40 50 C
Do not allow foreign materials to enter the crankcase. NOTE: Before checking the engine oil level, wait a few minutes until the oil has settled. Do not screw the dipstick in when checking the oil level.
_
5. Install: dipstick
3 - 16
CHK ADJ
6. Start the engine, warm it up for several minutes, and then turn it off. 7. Check the engine oil level again. NOTE: Before checking the engine oil level, wait a few minutes until the oil has settled.
_
EAS00075
CHANGING THE ENGINE OIL 1. Start the engine, warm it up for several minutes, and then turn it off. 2. Place a container under the engine oil drain bolt. 3. Remove: dipstick 1 engine oil drain bolt 2 (along with the gasket) engine oil drain plug 3 O-ring 4 spring 5 engine oil strainer 6 NOTE: When only changing the engine oil, remove engine oil drain bolt only. 4. Drain: engine oil (completely from the crankcase) 5. Check: engine oil strainer Dirt Clean. 6. Check: engine oil drain bolt gasket Damage Replace. 7. Install: engine oil drain bolt (along with the gasket)
20 Nm (2.0 m kg, 14 ft lb)
T.
6 5 4 3
R.
spring engine oil strainer O-ring New engine oil drain plug
20 Nm (2.0 m kg, 14 ft lb)
T.
R.
3 - 17
CHK ADJ
8. Fill: crankcase (with the specified amount of the recommended engine oil) Quantity Total amount 0.9 L (0.79 Imp qt, 0.95 US qt) Periodic replacement 0.8 L (0.70 Imp qt, 0.85 US qt) 9. Install: dipstick 10.Start the engine, warm it up for several minutes, and then turn it off. 11.Check: engine (for engine oil leaks) 12.Check: engine oil level Refer to CHECKING THE ENGINE OIL LEVEL.
CHANGING THE TRANSMISSION OIL 1. Start the engine, warm it up for several minutes, and then turn it off. 2. Place a container under the transmission oil drain bolt. 3. Remove: transmission oil filler plug 1 transmission oil drain bolt 2 (along with the gasket) 4. Drain: transmission oil (completely from the transmission case) 5. Check: transmission oil drain bolt gasket Damage Replace. 6. Install: transmission oil drain bolt (along with the gasket)
22 Nm (2.2 m kg, 16 ft lb)
T.
R.
3 - 18
CHK ADJ
7. Fill: transmission case (with the specified amount of the recommended transmission oil) Recommended oil Engine oil Quantity Total amount 0.12 L (0.11 Imp qt, 0.13 US qt) Periodic replacement 0.10 L (0.09 Imp qt, 0.11 US qt) 8. Install: transmission oil filler plug
EAS00086
CLEANING THE AIR FILTER ELEMENT NOTE: There is a check cap 1 at the bottom of the air filter case. If dust and/or water collects in this cap, clean the air filter element and filter case.
1 1
1. Remove: air filter case cover 1 air filter element NOTE: Unhook the mud flap 2 from the check cap, and then remove the air filter case cover and the air filter element together.
2
2. Clean: air filter element Apply compressed air to the outer surface of the air filter element. 3. Check: air filter element Damage Replace.
3 - 19
CHK ADJ
Never operate the engine without the air filter element installed. Unfiltered air will cause rapid wear of engine parts and may damage the engine. Operating the engine without the air filter element will also affect the carburetor tuning, leading to poor engine performance and possible overheating. NOTE: When installing the air filter element into the air filter case cover, make sure their sealing surfaces are aligned to prevent any air leaks.
_
EAS00320
CHECKING THE V-BELT 1. Remove: V-belt case cover Refer to KICKSTARTER in chapter 4. 2. Check: V-belt 1 Cranks/damage/wear Replace. Grease/oil Clean the primary and secondary sheaves. Refer to BELT DRIVE in chapter 4. 3. Measure: V-belt width a Out of specification Replace. Refer to BELT DRIVE in chapter 4. V-belt width 18.2 mm (0.72 in) <Limit>: 17.2 mm (0.68 in) 4. Install: V-belt case cover Refer to KICKSTARTER in chapter 4.
3 - 20
CHK ADJ
NOTE: On the bottom of the V-belt case cover is a check hose 1. If dust or water or both collects in this hose, clean the V-belt air filter elements.
_
1.
Remove: V-belt case air filter cover 2 V-belt case air filter dust seal 3 V-belt case air filter element 4
3 4
2. Clean: V-belt case air filter dust seal Wipe the V-belt case air filter dust seal clean with a dry cloth. 3. Clean: V-belt case air filter element
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
Use a cleaning solvent which is designed to clean parts only. Never use gasoline or low flash point solvents as they may cause a fire or explosion. b. Squeeze the excess solvent out of the element and let it dry.
3 - 21
CLEANING THE V-BELT CASE AIR FILTER ELEMENT/ CHECKING THE CARBURETOR JOINT AND INTAKE MANIFOLD CAUTION:
_
CHK ADJ
Do not twist or wring out the element. This could damage the foam material. c. Apply oil of the recommended type to the entire surface of the element, and then squeeze the excess oil out. NOTE: The element should be wet but not dripping.
_
4.
Install: V-belt case air filter element V-belt case air filter dust seal V-belt case air filter cover
EAS00094
CHECKING THE CARBURETOR JOINT AND INTAKE MANIFOLD 1. Remove: seat center cover rear panel left side cover Refer to REMOVING THE SEAT AND SIDE COVERS. 2. Check: intake manifold 1 carburetor joint 2 Cracks/damage Replace. Refer to CARBURETOR in chapter 5.
2 1
3 - 22
CHECKING THE CARBURETOR JOINT AND INTAKE MANIFOLD/ CHECKING THE FUEL AND VACUUM HOSES/ CHECKING THE BREATHER HOSES 3.
CHK ADJ
Install: left side cover rear panel center cover seat Refer to INSTALLING THE SEAT AND SIDE COVERS.
EAS00096
CHECKING THE FUEL AND VACUUM HOSES 1. Remove: seat center cover rear panel left side cover Refer to REMOVING THE SEAT AND SIDE COVERS. 2. Check: vacuum hose 1 fuel hose 2 Cracks/damage Replace. Loose connection Connect properly. 3. Install: left side cover rear panel center cover seat Refer to INSTALLING THE SEAT AND SIDE COVERS.
1 2
EAS00098
CHECKING THE BREATHER HOSES 1. Remove: seat center cover rear panel left side cover Refer to REMOVING THE SEAT AND SIDE COVERS.
3 - 23
CHK ADJ
2. Check: cylinder head breather hose 1 crankcase breather hose 2 Cracks/damage Replace. Loose connection Connect properly. CAUTION:
_
Make sure the cylinder head breather hose is routed correctly. 3. Install: left side cover rear panel center cover seat Refer to INSTALLING THE SEAT AND SIDE COVERS.
CHECKING THE EXHAUST SYSTEM 1. Check: exhaust pipe nuts 1 Loose/damage Tighten/replace.
20 Nm (2.0 m kg, 14 ft lb)
T.
R.
2. Check: muffler 1 Cracks/damage Replace. exhaust pipe gasket 2 Exhaust gas leaks Tighten/replace.
3 - 24
CHK ADJ
CHASSIS
EAS00114
ADJUSTING THE REAR BRAKE 1. Check: brake lever free play a Out of specification Adjust. Brake lever free play (lever end) 10 ~ 20 mm (0.39 ~ 0.79 in) 2. Adjust: brake lever free play a. Turn the adjusting nut 1 in direction a or b until the specified brake lever free play is obtained. Direction a Direction b CAUTION:
_
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
Brake lever free play is increased. Brake lever free play is decreased.
After adjusting the brake lever free play, make sure there is no brake drag.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
EAS00115
CHECKING THE BRAKE FLUID LEVEL 1. Stand the motorcycle on a level surface. NOTE: Place the motorcycle on a suitable stand. Make sure the motorcycle is upright.
_
2. Check: brake fluid level Below the minimum level mark a Remove the headlight assembly and add the recommended brake fluid to the proper level. Refer to REMOVING THE HEADLIGHT ASSEMBLY. Recommended brake fluid DOT 4
3 - 25
CHECKING THE BRAKE FLUID LEVEL/ CHECKING THE FRONT BRAKE PADS
WARNING
_
CHK ADJ
Use only the designated brake fluid. Other brake fluids may cause the rubber seals to deteriorate, causing leakage and poor brake performance. Refill with the same type of brake fluid that is already in the system. Mixing brake fluids may result in a harmful chemical reaction, leading to poor brake performance. When refilling, be careful that water does not enter the brake fluid reservoir. Water will significantly lower the boiling point of the brake fluid and could cause vapor lock. CAUTION:
_
Brake fluid may damage painted surfaces and plastic parts. Therefore, always clean up any spilt brake fluid immediately. NOTE: If DOT 4 brake fluid is not available, DOT 3 brake fluid can be used. In order to ensure a correct reading of the brake fluid level, make sure the top of the brake fluid reservoir is horizontal.
_
EAS00120
CHECKING THE FRONT BRAKE PADS 1. Operate the brake. 2. Check: front brake pads Wear indicator groove 1 almost disappeared Replace the brake pads as a set. Refer to REPLACING THE FRONT BRAKE PADS in chapter 6.
3 - 26
CHECKING THE REAR BRAKE SHOES/CHECKING THE FRONT BRAKE HOSE/BLEEDING THE HYDRAULIC BRAKE SYSTEM
EAS00126
CHK ADJ
CHECKING THE REAR BRAKE SHOES 1. Operate the brake. 2. Check: wear indicator 1 Reaches the wear limit line 2 Replace the brake shoes as a set. Refer to REAR WHEEL AND BRAKE in chapter 6.
EAS00129
CHECKING THE FRONT BRAKE HOSE 1. Check: brake hose Cracks/damage/wear Replace. 2. Check: brake hose holder Loose connection Tighten the clamp bolt. 3. Hold the motorcycle upright and apply the front brake several times. 4. Check: brake hose Brake fluid leakage Replace the damaged hose. Refer to FRONT BRAKE in chapter 6.
EAS00133
Bleed the hydraulic brake system whenever: the system is disassembled. a brake hose is loosened, disconnected or replaced. the brake fluid level is very low. brake operation is faulty.
3 - 27
CHK ADJ
NOTE: Be careful not to spill any brake fluid or allow the brake master cylinder reservoir to overflow. When bleeding the hydraulic brake system, make sure there is always enough brake fluid before applying the brake. Ignoring this precaution could allow air to enter the hydraulic brake system, considerably lengthening the bleeding procedure. If bleeding is difficult, it may be necessary to let the brake fluid settle for a few hours. Repeat the bleeding procedure when the tiny bubbles in the hose have disappeared. 1. Bleed: hydraulic brake system
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
2 1
a. Fill the brake fluid reservoir to the proper level with the recommended brake fluid. b. Install the brake master cylinder reservoir diaphragm. c. Connect a clear plastic hose 1 tightly to the bleed screw 2. d. Place the other end of the hose into a container. e. Slowly apply the brake lever several times. f. Fully pull the brake lever without releasing it. g. Loosen the bleed screw. NOTE: Loosening the bleed screw will release the pressure and cause the brake lever to contact the throttle grip.
_
h. Tighten the bleed screw and then release the brake lever. i. Repeat steps (e) to (h) until all of the air bubbles have disappeared from the brake fluid in the plastic hose. j. Tighten the bleed screw to specification. Bleed screw 6 Nm (0.6 m kg, 4.3 ft lb)
k. Fill the brake fluid reservoir to the proper level with the recommended brake fluid. Refer to CHECKING THE BRAKE FLUID LEVEL.
T.
R.
3 - 28
BLEEDING THE HYDRAULIC BRAKE SYSTEM/ CHECKING AND ADJUSTING THE STEERING HEAD
WARNING
_
CHK ADJ
After bleeding the hydraulic brake system, check the brake operation.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
EAS00148
CHECKING AND ADJUSTING THE STEERING HEAD 1. Stand the motorcycle on a level surface. WARNING
_
Securely support the motorcycle so that there is no danger of it falling over. NOTE: Place the motorcycle on a suitable stand so that the front wheel is elevated.
_
2. Check: steering head Grasp the bottom of the front fork legs and gently rock the front fork. Binding/looseness Adjust the steering head. 3. Remove: front cowling bottom cowling front bottom cowling footboard leg shield Refer to REMOVING THE FRONT COWLING AND LEG SHIELD.
3 - 29
CHK ADJ
a. Loosen the upper ring nut 1. b. Loosen the lower ring nut 2 and then tighten it to specification with the steering nut wrench 3. NOTE: Set the torque wrench at a right angle to the steering nut wrench.
_
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
Steering nut wrench 90890-01403 Lower ring nut 30 Nm (3.0 m kg, 22 ft lb)
2
T.
c. Loosen the lower ring nut counterclockwise 1/4 of a turn. d. Hold the lower ring nut with a ring nut wrench 4 and tighten the upper ring nut 1 with a steering nut wrench. WARNING
_
e. Check the steering head for looseness or binding by turning the front fork all the way in both directions. If any binding is felt, remove the lower bracket and check the upper and lower bearings. Refer to STEERING HEAD in chapter 6.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
R.
Ring nut wrench 90890-01268 Upper ring nut 75 Nm (7.5 m kg, 54 ft lb)
T.
R.
5.
Install: leg shield footboard front bottom cowling bottom cowling front cowling Refer to INSTALLING THE COWLING AND LEG SHIELD.
FRONT
3 - 30
CHK ADJ
CHECKING THE FRONT FORK 1. Stand the motorcycle on a level surface. WARNING
_
Securely support the motorcycle so that there is no danger of it falling over. 2. Check: inner tube Damage/scratches Replace. oil seal Oil leakage Replace. 3. Hold the motorcycle upright and apply the front brake. 4. Check: front fork operation Push down hard on the handlebar several times and check if the front fork rebounds smoothly. Rough movement Repair. Refer to FRONT FORK in chapter 6.
EASF0015
CHECKING THE TIRES The following procedure applies to both of the tires. 1. Check: tire pressure Out of specification Regulate.
3 - 31
CHK ADJ
The tire pressure should only be checked and regulated when the tire temperature equals the ambient air temperature. The tire pressure and the suspension must be adjusted according to the total weight (including cargo, rider, passenger and accessories) and the anticipated riding speed. Operation of an overloaded motorcycle could cause tire damage, an accident or an injury. NEVER OVERLOAD THE MOTORCYCLE.
Basic weight (with oil and a full fuel tank) Maximum load*
90 kg (198 lb)
225 kPa 200 kPa (2.00 kgf/cm2, (2.25 kgf/cm2, 29 psi) 33 psi)
It is dangerous to ride with a worn-out tire. When the tire tread reaches the wear limit, replace the tire immediately.
2. Check: tire surfaces Damage/wear Replace the tire. Minimum tire tread depth 0.8 mm (0.031 in)
1 Tire tread depth 2 Sidewall 3 Wear indicator
3 - 32
CHK ADJ
Do not use a tubeless tire on a wheel designed only for tube tires to avoid tire failure and personal injury from sudden deflation. When using tube tires, be sure to install the correct tube. Always replace a new tube tire and a new tube as a set. To avoid pinching the tube, make sure the wheel rim band and tube are centered in the wheel groove. Patching a punctured tube is not recommended. If it is absolutely necessary to do so, use great care and replace the tube as soon as possible with a good quality replacement. Tube wheel Tubeless wheel Tube tire only Tube or tubeless tire
After extensive tests, the tires listed below have been approved by Yamaha Motor Co., Ltd. for this model. The front and rear tires should always be by the same manufacturer and of the same design. No guarantee concerning handling characteristics can be given if a tire combination other than one approved by Yamaha is used on this motorcycle. WARNING
_
New tires have a relatively low grip on the road surface until they have been slightly worn. Therefore, approximately 100 km (60 mi) should be traveled at normal speed before any high-speed riding is done. After a tire has been repaired or replaced, be sure to tighten the tire air valve stem locknut 1 to specification. NOTE: For tires with a direction of rotation mark 2: Install the tire with the mark pointing in the direction of wheel rotation. Align the mark 3 with the valve installation point.
_
3 - 33
CHK ADJ
CHECKING THE WHEELS The following procedure applies to both of the wheels. 1. Check: wheel Damage/out-of-round Replace. WARNING
@
Never attempt to make any repairs to the wheel. NOTE: After a tire or wheel has been changed or replaced, always balance the wheel.
@
EAS00169
CHECKING AND TIGHTENING THE SPOKES The following procedure applies to all of the spokes. 1. Check: spoke 1 Bends/damage Replace. Loose Tighten. Tap the spokes with a screwdriver. NOTE: A tight spoke will emit a clear, ringing tone; a loose spoke will sound flat.
_
T.
R.
3 - 34
CHECKING AND LUBRICATING THE CABLES/ LUBRICATING THE LEVERS/ LUBRICATING THE SIDESTAND
EAS00170
CHK ADJ
CHECKING AND LUBRICATING THE CABLES The following procedure applies to all of the inner and outer cables. WARNING
_
Damaged outer cable may cause the cable to corrode and interfere with its movement. Replace damaged outer cable and inner cables as soon as possible. 1. Check: outer cable Damage Replace. 2. Check: cable operation Rough movement Lubricate. Recommended lubricant Engine oil or a suitable cable lubricant NOTE: Hold the cable end upright and pour a few drops of lubricant into the cable sheath or use a suitable lubricating device.
_
EAS00171
LUBRICATING THE LEVERS Lubricate the pivoting point and metal-to-metal moving parts of the levers. Recommended lubricant Lithium-soap-based grease
EAS00172
LUBRICATING THE SIDESTAND Lubricate the pivoting point and metal-to-metal moving parts of the sidestand. Recommended lubricant Lithium-soap-based grease
3 - 35
CHK ADJ
LUBRICATING THE CENTERSTAND Lubricate the pivoting point and metal-to-metal moving parts of the centerstand. Recommended lubricant Lithium-soap-based grease
3 - 36
CHK ADJ
ELECTRICAL SYSTEM
CHECKING AND CHARGING THE BATTERY WARNING
_
Batteries generate explosive hydrogen gas and contain electrolyte which is made of poisonous and highly caustic sulfuric acid. Therefore, always follow these preventive measures: Wear protective eye gear when handling or working near batteries. Charge batteries in a well-ventilated area. Keep batteries away from fire, sparks or open flames (e.g., welding equipment, lighted cigarettes). DO NOT SMOKE when charging or handling batteries. KEEP BATTERIES AND ELECTROLYTE OUT OF REACH OF CHILDREN. Avoid bodily contact with electrolyte as it can cause severe burns or permanent eye injury. FIRST AID IN CASE OF BODILY CONTACT: EXTERNAL Skin Wash with water. Eyes Flush with water for 15 minutes and get immediate medical attention. INTERNAL Drink large quantities of water or milk followed with milk of magnesia, beaten egg or vegetable oil. Get immediate medical attention. 1. 2. Open the seat. Remove: center cover rear panel right side cover Refer to REMOVING THE SEAT AND SIDE COVERS. 3. Unhook the battery band 1 and open the lid 2.
3 - 37
CHK ADJ
4 5
4 5
First, disconnect the negative battery lead 1, and then positive battery lead 2. 5. 6. Remove: battery 3 Disconnect: battery breather hose 1 4 battery breather hose 2 5
7. Check: electrolyte level The electrolyte level should be between the minimum level mark a and the maximum level mark b. Below the minimum level mark Add distilled water to the proper level. CAUTION:
_
Add only distilled water. Tap water contains minerals which are harmful to the battery.
3 - 38
CHK ADJ
Loosen the battery sealing caps. Make sure the battery breather hose and battery vent are free of obstructions. To ensure maximum performance, always charge a new battery before using it. Do not use a high-rate battery charger. They force a high-amperage current into the battery quickly and can cause battery overheating and battery plate damage. If it is impossible to regulate the charging current on the battery charger, be careful not to overcharge the battery. When charging a battery, be sure to remove it from the motorcycle. (If charging has to be done with the battery mounted on the motorcycle, disconnect the negative battery lead from the battery terminal.) To reduce the chance of sparks, do not plug in the battery charger until the battery charger leads are connected to the battery. Before removing the battery charger lead clips from the battery terminals, be sure to turn off the battery charger. Make sure the battery charger lead clips are in full contact with the battery terminal and that they are not shorted. A corroded battery charger lead clip may generate heat in the contact area and a weak clip spring may cause sparks. If the battery becomes hot to the touch at any time during the charging process, disconnect the battery charger and let the battery cool before reconnecting it. Hot batteries can explode!
3 - 39
CHK ADJ
NOTE: Replace the battery whenever: battery voltage does not rise to specification or bubbles fail to rise during charging, sulphation of one or more battery cells occurs (as indicated by the battery plates turning white or material accumulating in the bottom of the battery cell), specific gravity readings after a long, slow charge indicate that one battery cells charge is lower than the rest, warpage or buckling of the battery plates or insulators is evident. 10.Check: battery breather hose and battery vent Obstruction Clean. Damage Replace. 11.Connect: battery breather hose 2 (to the storage box) 1 battery breather hose 1 (to the battery) 2 CAUTION:
_
2 1
2 1
When checking the battery, make sure the battery breather hose is properly installed and routed correctly. If the battery breather hose is positioned so as to allow electrolyte or hydrogen gas from the battery to contact the frame, the motorcycle and its finish may be damaged. Make sure the battery breather hose is properly routed. 12.Install: battery 3 13.Check: battery terminals Dirt Clean with a wire brush. Loose connection Connect properly. 14.Connect: battery leads (to the battery terminals) CAUTION:
_
First, connect the positive battery lead 1, and then the negative battery lead 2.
3 - 40
CHK ADJ
Recommended lubricant Dielectric grease 16.Close the lid 1 and hook the battery band 2. 17.Install: right side cover rear panel center cover Refer to INSTALLING THE SEAT AND SIDE COVERS. 18.Close the seat.
EASF0017
To avoid a short circuit, always set the main switch to OFF when checking or replacing a fuse. 1. Open the seat. 2. Unhook the battery band 1 and open the lid 2. 3. Check: fuse
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Connect the pocket tester to the fuse and check the continuity. NOTE: Set the pocket tester selector to 1.
_
2
Pocket tester 90890-03112 b. If the pocket tester indicates , replace the fuse.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
3 - 41
CHK ADJ
Never use a fuse with an amperage rating other than that specified. Improvising or using a fuse with the wrong amperage rating may cause extensive damage to the electrical system, cause the lighting and ignition systems to malfunction and could possibly cause a fire.
1
EAS00182
REPLACING THE HEADLIGHT BULB 1. Remove: headlight assembly Refer to REMOVING THE HEADLIGHT ASSEMBLY. 2. Remove: headlight bulb holder 1
Since the headlight bulb gets extremely hot, keep flammable products and your hands away from the bulb until it has cooled down.
3 - 42
CHK ADJ
4. Install: headlight bulb New Secure the new headlight bulb with the headlight bulb holder. CAUTION:
_
Avoid touching the glass part of the headlight bulb to keep it free from oil, otherwise the transparency of the glass, the life of the bulb and the luminous flux will be adversely affected. If the headlight bulb gets soiled, thoroughly clean it with a cloth moistened with alcohol or lacquer thinner. 5. 6. Install: headlight bulb holder Install: headlight assembly Refer to INSTALLING THE HEADLIGHT ASSEMBLY.
EAS00186
ADJUSTING THE HEADLIGHT BEAM 1. Adjust: headlight beam (vertically) a. Loosen the bolt 1. b. Slide the bottom of the headlight unit forward a or backward b. Slide forward a Headlight beam is raised.
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
3 - 43
ENG
CHAPTER 4 ENGINE
REMOVING THE ENGINE............................................................................... 4-1 ENGINE OIL .............................................................................................. 4-1 COVERS ...................................................................................................4-1 CARBURETOR ......................................................................................... 4-1 MUFFLER..................................................................................................4-2 CABLE AND HOSE ................................................................................... 4-2 REAR SHOCK ABSORBER ASSEMBLY BOLT ....................................... 4-3 ENGINE ASSEMBLY ................................................................................ 4-3 INSTALLING THE ENGINE.............................................................................4-4 ENGINE ASSEMBLY ................................................................................ 4-4 REAR SHOCK ABSORBER ASSEMBLY BOLT ....................................... 4-4 CABLE AND HOSE ................................................................................... 4-4 MUFFLER..................................................................................................4-5 CARBURETOR ......................................................................................... 4-6 COVERS ...................................................................................................4-6 ENGINE OIL .............................................................................................. 4-6 CYLINDER HEAD............................................................................................ 4-7 REMOVING THE CYLINDER HEAD.........................................................4-8 CHECKING THE CYLINDER HEAD .......................................................4-11 CHECKING THE TIMING CHAIN GUIDE ............................................... 4-12 CHECKING THE TIMING CHAIN TENSIONER...................................... 4-12 INSTALLING THE CYLINDER HEAD .....................................................4-12 CAMSHAFT ................................................................................................... 4-17 REMOVING THE ROCKER ARMS AND CAMSHAFT............................ 4-18 CHECKING THE CAMSHAFTS ..............................................................4-19 CHECKING THE ROCKER ARMS AND ROCKER ARM SHAFTS ........ 4-20 CHECKING THE CAMSHAFT SPROCKET............................................4-21 CHECKING THE TAPPET COVERS AND CAMSHAFT SPROCKET COVER................................................. 4-21 INSTALLING THE CAMSHAFTS AND ROCKER ARMS........................ 4-21 VALVES AND VALVE SPRINGS .................................................................. 4-23 REMOVING THE VALVES...................................................................... 4-24 CHECKING THE VALVES AND VALVE GUIDES ..................................4-25 CHECKING THE VALVE SEATS ............................................................ 4-27 CHECKING THE VALVE SPRINGS........................................................ 4-29 INSTALLING THE VALVES .................................................................... 4-30
ENG
CYLINDER AND PISTON.............................................................................. 4-32 REMOVING THE CYLINDER AND PISTON...........................................4-33 CHECKING THE CYLINDER AND PISTON ...........................................4-34 CHECKING THE PISTON RINGS........................................................... 4-35 CHECKING THE PISTON PIN ................................................................4-36 INSTALLING THE PISTON AND CYLINDER .........................................4-37 KICKSTARTER ............................................................................................. 4-39 REMOVING THE KICKSTARTER........................................................... 4-40 DISASSEMBLING THE KICKSTARTER SHAFT .................................... 4-40 CHECKING THE KICKSTARTER ........................................................... 4-41 ASSEMBLING THE KICKSTARTER.......................................................4-42 INSTALLING THE KICKSTARTER ......................................................... 4-42 BELT DRIVE .................................................................................................. 4-44 V-BELT, PRIMARY AND SECONDARY SHEAVE..................................4-44 REMOVING THE SECONDARY SHEAVE AND V-BELT .......................4-46 REMOVING THE PRIMARY SHEAVE....................................................4-47 DISASSEMBLING THE SECONDARY SHEAVE.................................... 4-48 CHECKING THE CLUTCH HOUSING ....................................................4-49 CHECKING THE CLUTCH SHOES ........................................................ 4-49 CHECKING THE V-BELT........................................................................4-50 CHECKING THE PRIMARY SHEAVE WEIGHTS................................... 4-50 CHECKING THE SECONDARY SHEAVE .............................................. 4-50 ASSEMBLING THE PRIMARY SHEAVE ................................................ 4-51 ASSEMBLING THE SECONDARY SHEAVE..........................................4-53 INSTALLING THE BELT DRIVE ............................................................. 4-55 STARTER CLUTCH ......................................................................................4-57 REMOVING THE STARTER CLUTCH ...................................................4-58 CHECKING THE STARTER CLUTCH ....................................................4-58 INSTALLING THE STARTER CLUTCH .................................................. 4-59 A.C. MAGNETO............................................................................................. 4-61 REMOVING THE A.C. MAGNETO.......................................................... 4-62 INSTALLING THE A.C. MAGNETO ........................................................ 4-63 OIL PUMP ...................................................................................................... 4-64 REMOVING THE OIL PUMP................................................................... 4-65 DISASSEMBLING THE OIL PUMP......................................................... 4-65 CHECKING THE OIL PUMP ................................................................... 4-66 CHECKING THE OIL STRAINER ........................................................... 4-67 ASSEMBLING THE OIL PUMP...............................................................4-67 INSTALLING THE OIL PUMP .................................................................4-67 TRANSMISSION............................................................................................ 4-69 REMOVING THE TRANSMISSION ........................................................ 4-70 CHECKING THE TRANSMISSION ......................................................... 4-71 INSTALLING THE TRANSMISSION .......................................................4-71
ENG
CRANKSHAFT ..............................................................................................4-73 DISASSEMBLING THE CRANKCASE....................................................4-74 REMOVING THE CRANKSHAFT ASSEMBLY ....................................... 4-75 CHECKING THE TIMING CHAIN AND TIMING CHAIN GUIDE............. 4-76 CHECKING THE CRANKSHAFT AND CONNECTING ROD ................. 4-76 CHECKING THE CRANKCASE ..............................................................4-77 CHECKING THE BEARINGS AND OIL SEALS...................................... 4-77 INSTALLING THE CRANKSHAFT .......................................................... 4-78 ASSEMBLING THE CRANKCASE.......................................................... 4-78
ENG
ENG
ENGINE
REMOVING THE ENGINE
NOTE: It is not necessary to remove the engine in order to remove the following components. Cylinder head Cylinder Piston Starter clutch Starter motor Kickstarter shaft V-belt Primary sheave Secondary sheave Transmission Rear wheel assembly Oil pump A.C. magneto
_
ENGINE OIL 1. Drain: engine oil Refer to CHANGING THE ENGINE OIL in chapter 3.
COVERS 1. Remove: footboard Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3.
CARBURETOR 1. Remove: fuel tank Refer to FUEL TANK in chapter 5. air filter case Refer to AIR FILTER CASE in chapter 5. carburetor assembly Refer to CARBURETOR in chapter 5.
4-1
ENG
2.
Remove: muffler bolts 1 washer nuts washer spacer damper muffler 2 muffler stay bolts 3 washers muffler stay 4
CABLE AND HOSE 1. Disconnect: vacuum hose 1 cylinder head breather hose 2
4-2
ENG
REAR SHOCK ABSORBER ASSEMBLY BOLT 1. Remove: rear shock absorber assembly bolt 1
ENGINE ASSEMBLY 1. Remove: engine mounting nut 1 washer engine mounting bolt 2 engine assembly WARNING
_
4-3
ENG
Securely support the motorcycle so there is no danger of it falling over when installing engine. 1. Install: engine assembly engine mounting bolt washer engine mounting nut
59 Nm (5.9 m kg, 43 ft lb)
T.
REAR SHOCK ABSORBER ASSEMBLY BOLT 1. Install: rear shock absorber assembly bolt
16 Nm (1.6 m kg, 11 ft lb)
T.
CABLE AND HOSE 1. Install: rear brake cable rear brake cable holder rear brake cable holder screws
7 Nm (0.7 m kg, 5.1 ft lb)
T.
R. R. R.
2. 3.
Connect: cylinder head breather hose vacuum hose Adjust: rear brake lever free play Refer to ADJUSTING THE REAR BRAKE in chapter 3.
4-4
ENG
MUFFLER 1. Install: muffler stay 1 (to the muffler 2) muffler upper bolt 3 (install without tightening) nut 4 damper 5 spacer 6 washer 7 muffler lower bolt 8 (install without tightening) washer 9 nut 0 NOTE: Install the washer 9 and the nut 0 as shown.
_
2. Install: muffler stay (to the right crankcase) washer muffler stay upper bolt A (tighten temporarily) washer muffler stay lower bolt B (tighten temporarily)
3. 4.
Tighten: 20 Nm (2.0 m kg, 14 ft lb) nuts 1 Tighten: muffler stay upper bolt muffler stay lower bolt
T. T. T. T.
R. R. R.
4-5
ENG
CARBURETOR 1. Install: carburetor assembly Refer to CARBURETOR in chapter 5. air filter case Refer to AIR FILTER CASE in chapter 5. fuel tank Refer to FUEL TANK in chapter 5. 2. Adjust: throttle cable free play Refer to ADJUSTING THE THROTTLE CABLE FREE PLAY in chapter 3.
COVERS 1. Install: footboard Refer to INSTALLING THE FRONT COWLING AND LEG SHIELD in chapter 3.
ENGINE OIL 1. Fill: engine oil Refer to CHANGING THE ENGINE OIL in chapter 3.
4-6
CYLINDER HEAD
EASF0023
ENG
CYLINDER HEAD
1 Cylinder head 2 Spark plug 3 O-ring 4 Tappet cover 5 Camshaft sprocket 6 Camshaft sprocket plate 7 Timing chain guide (exhaust side) 8 O-ring 9 Camshaft sprocket cover 0 Dowel pin A Gasket B Gasket C O-ring D Intake manifold E Air shroud F Rubber cover G Timing chain tensioner H Gasket I Ignition coil assembly bracket J Ignition coil assembly K Engine cooling fan L Engine cooling fan cover
4-7
CYLINDER HEAD
EAS00225
ENG
REMOVING THE CYLINDER HEAD 1. Remove: footboard Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3. 2. Remove: fuel tank Refer to FUEL TANK in chapter 5. air filter case Refer to AIR FILTER CASE in chapter 5. carburetor assembly Refer to CARBURETOR in chapter 5. 3. Remove: muffler Refer to REMOVING THE ENGINE.
4.
3 1 2
1 4
5.
Remove: vacuum hose 1 cylinder head breather hose 2 cylinder head breather hose holder 3 intake manifold 4 ignition coil assembly bracket 5
6.
Remove: intake tappet cover 1 exhaust tappet cover 2 camshaft sprocket cover 3 (with the O-ring)
4-8
CYLINDER HEAD
1
7.
ENG
Remove: rubber cover 1 air shroud (left) 2 engine cooling fan cover 3 air shroud (right) 4
3
8. Remove: engine cooling fan 1
b a
9. Align: I mark a on the A.C. magneto rotor (with the stationary pointer b on the crankcase)
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Turn the crankshaft clockwise. b. When the piston is at the Top Dead Center (TDC) on the compression stroke, align the I mark c on the camshaft sprocket with the stationary pointer d on the cylinder head.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
d c
4-9
CYLINDER HEAD
ENG
10.Loosen: camshaft sprocket bolt 1 NOTE: While holding the A.C. magneto rotor with the rotor holding tool 2, loosen the camshaft sprocket bolt.
_
1
2
Rotor holding tool 90890-01235 11.Remove: timing chain tensioner 1 (along with the gasket)
1 2 3 4
12.Remove: camshaft sprocket bolt 1 camshaft sprocket plate 2 camshaft sprocket 3 timing chain 4 NOTE: To prevent the timing chain from falling into the crankcase, fasten it with a wire.
_
3 5
NOTE: Loosen the bolts and nuts in the proper sequence as shown. Loosen each nut 1/2 of a turn at a time. After all of the nuts are fully loosened, remove them.
_
2 3
4 - 10
CYLINDER HEAD
EAS00227
ENG
CHECKING THE CYLINDER HEAD 1. Eliminate: combustion chamber carbon deposits (with a rounded scraper) NOTE: Do not use a sharp instrument to avoid damaging or scratching: spark plug bore threads valve seats
_
3. Measure: cylinder head warpage Out of specification Resurface the cylinder head. Maximum cylinder head warpage 0.05 mm (0.0020 in) a. Place a straightedge 1 and a thickness gauge 2 across the cylinder head. b. Measure the warpage. c. If the limit is exceeded, resurface the cylinder head as follows. d. Place a 400 ~ 600 grit wet sandpaper on the surface plate and resurface the cylinder head using a figure-eight sanding pattern.
_
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
NOTE: To ensure an even surface, rotate the cylinder head several times.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
4 - 11
CYLINDER HEAD
ENG
CHECKING THE TIMING CHAIN GUIDE 1. Check: timing chain guide (exhaust side) Damage/wear Replace.
EAS00210
CHECKING THE TIMING CHAIN TENSIONER 1. Check: timing chain tensioner Cracks/damage Replace.
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Remove the plug cap. b. While lightly pressing the timing chain tensioner rod by hand, turn the tensioner rod fully clockwise with a thin screwdriver 1. c. Remove the screwdriver and slowly release the timing chain tensioner rod. d. Make sure that the timing chain tensioner rod comes out of the timing chain tensioner housing smoothly. If there is rough movement, replace the timing chain tensioner. e. Install the plug cap.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
2. Check: one-way cam timing chain tensioner rod Damage/wear Replace the defective part(s).
EAS00231
New 3 1
INSTALLING THE CYLINDER HEAD For installation, reverse the removal procedure. 1. Install: timing chain guide (exhaust side) 1 dowel pins 2 gasket 3 New 2. Install: cylinder head
4 - 12
CYLINDER HEAD
3. Tighten: cylinder head nuts
1 3 5
ENG
cylinder head bolts NOTE: Lubricate the cylinder head nuts with engine oil. Tighten the cylinder head nuts and bolts in the proper tightening sequence as shown and torque them in two stages.
_
T.
T.
R. R.
4 2
1 d c 2
4. Install: camshaft sprocket 1 timing chain 2 a. Check that the I mark a on the A.C. magneto rotor is aligned with the stationary pointer b on the crankcase. b. Align the I mark c on the camshaft sprocket with the stationary pointer d on the cylinder head. c. Install the timing chain onto the camshaft sprocket, and then install the camshaft sprocket onto the camshaft.
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
b a
NOTE: When installing the camshaft sprocket, be sure to keep the timing chain as tight as possible on the exhaust side. Align the projection e on the camshaft sprocket with the slot in the camshaft.
_
e
CAUTION:
_
Do not turn the crankshaft when installing the camshaft to avoid damage or improper valve timing. d. While holding the camshaft, temporarily tighten the camshaft sprocket bolt. e. Remove the wire from the timing chain.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
4 - 13
CYLINDER HEAD
5. Install timing chain tensioner
ENG
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Remove the plug cap. b. While lightly pressing the timing chain tensioner rod by hand, turn the tensioner rod fully clockwise with a thin screwdriver 1. NOTE: Make sure that the tensioner rod has been fully set clockwise.
1 2
c. Install the gasket and the timing chain tensioner 2 onto the cylinder. WARNING Always use a new gasket.
d. Turn the timing chain tensioner rod counterclockwise with a thin screwdriver 1, make sure it releases, and then install the plug cap.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
CAUTION:
_
Be sure to tighten the camshaft sprocket bolt to the specified torque to avoid the possibility of the bolt coming loose and damaging the engine. 7. Turn: crankshaft (several turns clockwise)
T.
R.
R.
4 - 14
CYLINDER HEAD
ENG
b a
8. Check: I mark a Align the I mark on the A.C. magneto rotor with the stationary pointer b on the crankcase. I mark c Align the I mark on the camshaft sprocket with the stationary pointer d on the cylinder head. Out of alignment Correct. Refer to the installation steps above.
d c
9. Measure: valve clearance Out of specification Adjust. Refer to ADJUSTING THE CLEARANCE in chapter 3. 10.Install: engine cooling fan engine cooling fan bolts
T.
VALVE
11.Install: air shroud (right) engine cooling fan cover 1 engine cooling fan cover screws 2
7 Nm (0.7 m kg, 5.1 ft lb)
T.
R. R.
2 1 2
T.
R. R.
4 - 15
CYLINDER HEAD
ENG
14.Install: intake manifold cylinder head breather hose holder intake manifold bolts
10 Nm (1.0 m kg, 7.2 ft lb)
T.
R. R.
T.
R.
4 - 16
CAMSHAFT
EASF0020
ENG
CAMSHAFT
1 Locknut 2 Adjusting screw 3 Rocker arm (intake side) 4 Rocker arm (exhaust side) 5 Rocker arm shaft (intake side) 6 Rocker arm shaft (exhaust side) 7 Camshaft 8 Camshaft retainer
4 - 17
CAMSHAFT
EASF0022
ENG
2 1
REMOVING THE ROCKER ARMS AND CAMSHAFT NOTE: Prior to remove the rocker arms and camshaft, remove the cylinder head.
_
1. 2.
1 2
3. Remove: camshaft 1 NOTE: Screw 8 mm bolt 2 into the threaded end of the camshaft and then pull out the camshaft.
_
2 1
4.
_
Remove: intake rocker arm shaft exhaust rocker arm shaft intake rocker arm exhaust rocker arm
NOTE: Remove the rocker arm shafts with the slide hammer bolt 1 and weight 2.
4 - 18
CAMSHAFT
EAS00205
ENG
CHECKING THE CAMSHAFTS 1. Check: camshaft lobes Blue discoloration/pitting/scratches Replace the camshaft.
2. Measure: camshaft lobe dimensions a and b Out of specification Replace the camshaft. Camshaft lobe dimension limit Intake a 25.881 ~ 25.981 mm (1.0189 ~ 1.0229 in) <Limit>: 25.780 mm (1.0150 in) b 21.195 ~ 21.295 mm (0.8344 ~ 0.8384 in) <Limit>: 21.095 mm (0.8305 in) Exhaust a 25.841 ~ 25.941 mm (1.0174 ~ 1.0213 in) <Limit>: 25.740 mm (1.0134 in) b 21.050 ~ 21.150 mm (0.8287 ~ 0.8327 in) <Limit>: 20.950 mm (0.8248 in)
3. Check: camshaft oil passage Obstruction Blow out with compressed air.
4 - 19
CAMSHAFT
EAS00206
ENG
CHECKING THE ROCKER ARMS AND ROCKER ARM SHAFTS The following procedure applies to all of the rocker arms and rocker arm shafts. 1. Check: rocker arm Damage/wear Replace. 2. Check: rocker arm shaft Blue discoloration/excessive wear/pitting/ scratches Replace or check the lubrication system. 3. Measure: rocker arm inside diameter Out of specification Replace. Rocker arm inside diameter 10.000 ~ 10.015 mm (0.3937 ~ 0.3943 in) <Limit>: 10.030 mm (0.3949 in) 4. Measure: rocker arm shaft outside diameter Out of specification Replace. Rocker arm shaft outside diameter 9.981 ~ 9.991 mm (0.3930 ~ 0.3933 in) <Limit>: 9.950 mm (0.3917 in) 5. Calculate: rocker-arm-to-rocker-arm-shaft clearance NOTE: Calculate the clearance by subtracting the rocker arm shaft outside diameter from the rocker arm inside diameter.
_
Above 0.08 mm (0.0031 in) Replace the defective part(s). Rocker-arm-to-rocker-arm-shaft clearance 0.009 ~ 0.034 mm (0.0004 ~ 0.0013 in) <Limit>: 0.08 mm (0.0031 in)
4 - 20
CAMSHAFT
EAS00207
ENG
CHECKING THE CAMSHAFT SPROCKET 1. Check: camshaft sprocket More than 1/4 tooth wear a Replace the camshaft sprocket and the timing chain as a set.
a 1/4 tooth b Correct 1 Timing chain roller 2 Camshaft sprocket
EAS00212
CHECKING THE TAPPET COVERS AND CAMSHAFT SPROCKET COVER The following procedure applies to both of the tappet covers and O-rings. 1. Check: tappet cover camshaft sprocket cover O-ring Damage/wear Replace the defective part(s).
EAS00219
INSTALLING THE CAMSHAFTS AND ROCKER ARMS 1. Lubricate: camshaft journals Recommended lubricant Molybdenum disulfide grease
M
2. Install: camshaft 1
4 - 21
CAMSHAFT
3. Lubricate: rocker arm shafts
M
ENG
Recommended lubricant Molybdenum disulfide oil 4. Install: exhaust rocker arm intake rocker arm exhaust rocker arm shaft intake rocker arm shaft
NOTE: Install the camshaft retainer with the folded side facing inward.
_
T.
R.
4 - 22
ENG
4 - 23
ENG
REMOVING THE VALVES NOTE: Prior to remove the valves, remove the cylinder head, rocker arms, and camshaft.
_
The following procedure applies to all of the valves and related components. NOTE: Before removing the internal parts of the cylinder head (e.g., valves, valve springs, valve seats), make sure the valves properly seal.
_
1. Check: valve sealing Leakage at the valve seat Check the valve face, valve seat, and valve seat width. Refer to CHECKING THE VALVE SEATS. a. Pour a clean solvent a into the intake and exhaust ports. b. Check that the valves properly seal.
_
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
2. Remove: valve cotters 1 NOTE: Remove the valve cotters by compressing the valve spring with the valve spring compressor 2.
_
4 - 24
ENG
Remove: upper spring seat 1 valve spring 2 valve stem seal 3 lower spring seat 4 valve 5
NOTE: Identify the position of each part very carefully so that it can be reinstalled in its original place.
EAS00239
CHECKING THE VALVES AND VALVE GUIDES The following procedure applies to all of the valves and valve guides. 1. Measure: valve-stem-to-valve-guide clearance Valve-stem-to-valve-guide clearance = Valve guide inside diameter a Valve stem diameter b Out of specification Replace the valve guide. Valve-stem-to-valve-guide clearance Intake 0.015 ~ 0.042 mm (0.0006 ~ 0.0017 in) <Limit>: 0.080 mm (0.0031 in) Exhaust 0.030 ~ 0.057 mm (0.0012 ~ 0.0022 in) <Limit>: 0.110 mm (0.0043 in)
4 - 25
ENG
NOTE: To ease valve guide removal and installation, and to maintain the correct fit, heat the cylinder head to 100 C (212 F) in an oven.
_
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Remove the valve guide with the valve guide remover 1. b. Install the new valve guide with the valve guide installer 2 and valve guide remover 1. c. After installing the valve guide, bore the valve guide with the valve guide reamer 3 to obtain the proper valve-stem-to-valveguide clearance. NOTE: After replacing the valve guide, reface the valve seat.
_
Valve guide remover (5) 90890-04097 Valve guide installer (5) 90890-04098 Valve guide reamer (5) 90890-04099
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
3. Eliminate: carbon deposits (from the valve face and valve seat) 4. Check: valve face Pitting/wear Grind the valve face. valve stem end Mushroom shape or diameter larger than the body of the valve stem Replace the valve. 5. Measure: valve margin thickness a Out of specification Replace the valve. Valve margin thickness Intake 0.7 mm (0.0276 in) Exhaust 1.0 mm (0.0394 in)
4 - 26
ENG
6. Measure: valve stem runout Out of specification Replace the valve. NOTE: When installing a new valve, always replace the valve guide. If the valve is removed or replaced, always replace the valve stem seal.
_
EAS00240
CHECKING THE VALVE SEATS The following procedure applies to all of the valves and valve seats. 1. Eliminate: carbon deposits (from the valve face and valve seat) 2. Check: valve seat Pitting/wear Replace the cylinder head. 3. Measure: valve seat width a Out of specification Replace the cylinder head. Valve seat width Intake 0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in) Exhaust 0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in) a. Apply Mechanics blueing dye (Dykem) b onto the valve face. b. Install the valve into the cylinder head. c. Press the valve through the valve guide and onto the valve seat to make a clear impression. d. Measure the valve seat width.
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
4 - 27
ENG
NOTE: Where the valve seat and valve face contacted one another, the blueing will have been removed.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
4. Lap: valve face valve seat NOTE: After replacing the cylinder head or replacing the valve and valve guide, the valve seat and valve face should be lapped.
_
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
Do not let the lapping compound enter the gap between the valve stem and the valve guide. b. Apply molybdenum disulfide oil onto the valve stem. c. Install the valve into the cylinder head. d. Turn the valve until the valve face and valve seat are evenly polished, then clean off all of the lapping compound. NOTE: For the best lapping results, lightly tap the valve seat while rotating the valve back and forth between your hands.
_
e. Apply a fine lapping compound to the valve face and repeat the above steps. f. After every lapping procedure, be sure to clean off all of the lapping compound from the valve face and valve seat. g. Apply Mechanics blueing dye (Dykem) b onto the valve face.
4 - 28
ENG
h. Install the valve into the cylinder head. i. Press the valve through the valve guide and onto the valve seat to make a clear impression. j. Measure the valve seat width c again. If the valve seat width is out of specification, reface and lap the valve seat.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
EAS00241
CHECKING THE VALVE SPRINGS The following procedure applies to all of the valve springs. 1. Measure: valve spring free length a Out of specification Replace the valve spring. Valve spring free length Intake valve spring 35.44 mm (1.40 in) <Limit>: 34.00 mm (1.34 in) Exhaust valve spring 35.44 mm (1.40 in) <Limit>: 34.00 mm (1.34 in)
2. Measure: compressed valve spring force a Out of specification Replace the valve spring.
b Installed length
Compressed valve spring force (installed) Intake and exhaust valve spring 146 ~ 168 N (14.9 ~ 17.1 kgf, 32.8 ~ 37.7 lb) at 24.1 mm (0.95 in)
4 - 29
ENG
3. Measure: valve spring tilt a Out of specification Replace the valve spring. Valve spring tilt limit Intake and exhaust valve spring 2.5/1.5 mm (2.5/0.06 in)
EAS00245
INSTALLING THE VALVES The following procedure applies to all of the valves and related components. 1. Deburr: valve stem end (with an oil stone)
2. Lubricate: valve stem 1 valve stem seal 2 (with the recommended lubricant) Recommended lubricant Molybdenum disulfide oil
3.
Install: valve 1 lower spring seat 2 valve stem seal 3 New valve spring 4 upper spring seat 5 (into the cylinder head)
NOTE: Install the valve spring with the larger pitch a facing up.
_
b Smaller pitch
4 - 30
ENG
NOTE: Install the valve cotters by compressing the valve spring with the valve spring compressor 2.
_
5. To secure the valve cotters onto the valve stem, lightly tap the valve tip with a soft-face hammer. CAUTION:
_
Hitting the valve tip with excessive force could damage the valve.
4 - 31
ENG
4 - 32
ENG
REMOVING THE CYLINDER AND PISTON NOTE: Prior to remove the cylinder and piston, remove the cylinder head.
_
1. Remove: cylinder 1
3.
_
CAUTION:
2 1
Do not use a hammer to drive the piston pin out. NOTE: Before removing the piston pin clip, cover the crankcase opening with a clean rag to prevent the piston pin clip from falling into the crankcase. Before removing the piston pin, deburr the piston pin clips groove and the pistons pin bore area. If both areas are deburred and the piston pin is still difficult to remove, remove it with the piston pin puller set.
_
4.
_
NOTE: When removing a piston ring, open the end gap with your fingers and lift the other side of the ring over the piston crown.
4 - 33
ENG
CHECKING THE CYLINDER AND PISTON 1. Check: piston wall cylinder wall Vertical scratches Rebore or replace the cylinder, and replace the piston and piston rings as a set. 2. Measure: piston-to-cylinder clearance
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Measure cylinder bore C with the cylinder bore gauge. NOTE: Measure cylinder bore C by taking side-toside and front-to-back measurements of the cylinder. Then, find the average of the measurements.
_
50.000 ~ 50.010 mm (1.9685 ~ 1.9689 in) 0.05 mm (0.0020 in) 0.05 mm (0.0020 in)
C = maximum of D1 ~ D2 T = maximum of D1 or D2 maximum of D5 or D6 R = maximum of D1, D3 or D5 minimum of D2, D4 or D6 b. If out of specification, rebore or replace the cylinder, and replace the piston and piston rings as a set. c. Measure piston skirt diameter P with the micrometer.
a 5 mm (0.20 in) from the bottom edge of the piston
d. If out of specification, replace the piston and piston rings as a set. e. Calculate the piston-to-cylinder clearance with the following formula. Piston-to-cylinder clearance = Cylinder bore C Piston skirt diameter P
4 - 34
ENG
Piston-to-cylinder clearance 0.020 ~ 0.035 mm (0.0008 ~ 0.0014 in) <Limit>: 0.15 mm (0.0059 in) f. If out of specification, rebore or replace the cylinder, and replace the piston and piston rings as a set.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
EAS00263
CHECKING THE PISTON RINGS 1. Measure: piston ring side clearance Out of specification Replace the piston and piston rings as a set. NOTE: Before measuring the piston ring side clearance, eliminate any carbon deposits from the piston ring grooves and piston rings.
_
Piston ring side clearance Top ring 0.03 ~ 0.07 mm (0.0012 ~ 0.0028 in) <Limit>: 0.12 mm (0.0047 in) 2nd ring 0.02 ~ 0.06 mm (0.0008 ~ 0.0024 in) <Limit>: 0.12 mm (0.0047 in) 2. Install: piston ring (into the cylinder)
NOTE: Level the piston ring into the cylinder with the piston crown.
_
3. Measure: piston ring end gap Out of specification Replace the piston ring. NOTE: The oil ring expander spacers end gap cannot be measured. If the oil ring rails gap is excessive, replace all three piston rings.
_
4 - 35
ENG
Piston ring end gap Top ring 0.10 ~ 0.25 mm (0.004 ~ 0.010 in) <Limit>: 0.5 mm (0.020 in) 2nd ring 0.10 ~ 0.25 mm (0.004 ~ 0.010 in) <Limit>: 0.6 mm (0.024 in) Oil ring 0.20 ~ 0.70 mm (0.008 ~ 0.028 in)
EAS00265
CHECKING THE PISTON PIN 1. Check: piston pin Blue discoloration/grooves Replace the piston pin and then check the lubrication system. 2. Measure: piston pin outside diameter a Out of specification Replace the piston pin. Piston pin outside diameter 14.995 ~ 15.000 mm (0.5904 ~ 0.5906 in) <Limit>: 14.975 mm (0.5896 in) 3. Measure: piston pin bore diameter (of the piston) b Out of specification Replace the piston. Piston pin bore diameter (of the piston) 15.002 ~ 15.013 mm (0.5906 ~ 0.5911 in) <Limit>: 15.043 mm (0.5922 in) 4. Calculate: piston-pin-to-piston-pin-bore clearance Out of specification Replace the piston pin and piston as a set. Piston-pin-to-piston-pin-bore clearance = Piston pin bore diameter b Piston pin outside diameter a Piston-pin-to-piston-pin-boreclearance 0.002 ~ 0.018 mm (0.0001 ~ 0.0007 in) <Limit>: 0.068 mm (0.0027 in)
4 - 36
ENG
INSTALLING THE PISTON AND CYLINDER 1. Install: top ring 1 2nd ring 2 oil ring expander 3 lower oil ring rail 4 upper oil ring rail 5 NOTE: Be sure to install the piston rings so that the manufacturers marks or numbers face up.
_
2.
_
New
a 1
3 New
NOTE: Apply engine oil the piston pin. Make sure the arrow mark a on the piston points towards the exhaust side of the cylinder. Before installing the piston pin clip, cover the crankcase opening with a clean rag to prevent the clip from falling into the crankcase.
4 - 37
ENG
New 1
Install: gasket 1 New dowel pins 2 Lubricate: piston piston rings cylinder (with the recommended lubricant) Recommended lubricant Engine oil
120
120
120
f f d c b
6. Install: cylinder 1 NOTE: While compressing the piston rings with one hand, install the cylinder with the other hand. Pass the timing chain and timing chain guide (intake side) through the timing chain cavity.
_
4 - 38
KICKSTARTER
EASF0033
ENG
KICKSTARTER
1 V-belt case air filter cover 2 V-belt case air filter dust seal 3 V-belt case air filter element 4 V-belt case air filter element guide 5 V-belt case air duct 6 V-belt case air filter joint 7 V-belt case cover protector 2 8 V-belt case cover protector 1 9 Dowel pin 0 V-belt case cover A Kickstarter crank B Oil seal C Circlip D Washer E Kickstarter pinion gear F Kickstarter pinion gear clip G Spacer H Kickstarter spring I Kickstarter shaft J Kickstarter shaft plate
4 - 39
KICKSTARTER
ENG
REMOVING THE KICKSTARTER 1. Remove: footboard Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3. V-belt case air filter element Refer to CLEANING THE V-BELT CASE AIR FILTER ELEMENT in chapter 3.
2. 3.
Loosen: V-belt case air filter joint screw 1 Remove: V-belt case air duct 2
1 2 2
4. 5. Disconnect: crankcase breather hose 1 Remove: V-belt case air filter element guide 2 V-belt case cover protector 1 3 V-belt case cover protector 2 4
1 4
3
6. Remove: kickstarter crank bolt 1 kickstarter crank 2 fuel overflow hose holder 3 V-belt case cover 4 dowel pins
3 1
4 - 40
KICKSTARTER
1 2
ENG
2. Remove: kickstarter pinion gear 1 kickstarter pinion gear clip 2 NOTE: Turn the kickstarter crank attached to the kickstarter shaft in the direction of the arrow a and remove the kickstarter pinion gear and kickstarter pinion gear clip together.
1 2 3
3.
4.
EAS00339
CHECKING THE KICKSTARTER 1. Check: kickstarter shaft kickstarter pinion gear Damage/wear Replace. 2. Check: kickstarter spring Damage/wear Replace. 3. Measure: kickstarter pinion gear clip friction force (with the spring gauge) Out of specification Replace the kickstarter pinion gear clip. Kickstarter pinion gear clip friction force 1.0 ~ 3.5 N (0.10 ~ 0.36 kgf, 0.22 ~ 0.79 lb)
4 - 41
KICKSTARTER
EAS00340
ENG
ASSEMBLING THE KICKSTARTER 1. Install: spacer kickstarter spring kickstarter shaft washer circlip New oil seal New NOTE: Hook the straight end of the kickstarter spring onto the notch 1 in the kickstarter shaft and hook the hooked end of the kickstarter spring onto the projection 2 as shown. Install the circlip securely into the groove on the kickstarter shaft.
_
2.
Install: kickstarter pinion gear clip kickstarter pinion gear kickstarter shaft plate kickstarter shaft plate screws
9 Nm (0.9 m kg, 6.5 ft lb)
T.
INSTALLING THE KICKSTARTER For installation, reverse the removal procedure. 1. Install: dowel pins V-belt case cover fuel overflow hose holder V-belt case cover bolts
10 Nm (1.0 m kg, 7.2 ft lb)
T.
R. R.
b a 1
_
NOTE: To install the kickstarter crank, align the notch a in the kickstarter crank with the projection b on the V-belt case cover.
T.
R.
4 - 42
KICKSTARTER
ENG
3. Install: V-belt case cover protector 2 V-belt case cover protector 2 bolts
10 Nm (1.0 m kg, 7.2 ft lb)
T.
R.
T.
R. R.
4.
V-belt case air filter element guide Install: V-belt case air duct V-belt case air duct bolt
10 Nm (1.0 m kg, 7.2 ft lb)
T.
R.
4 - 43
BELT DRIVE
EASF0030
ENG
BELT DRIVE
V-BELT, PRIMARY AND SECONDARY SHEAVE
1 O-ring 2 Clutch housing 3 Clutch carrier 4 Spring 5 Spring seat 6 Oil seal 7 O-ring 8 Secondary sliding sheave 9 Secondary fixed sheave 0 Guide pin A V-belt B Conical spring washer C Kickstarter one-way clutch D Claw washer
4 - 44
BELT DRIVE
E Primary fixed sheave F Washer G Spacer H Oil seal I Primary sliding sheave J Primary sheave weight K Slider L Plastic slider guide M Gasket
ENG
4 - 45
BELT DRIVE
EAS00318
ENG
REMOVING THE SECONDARY SHEAVE AND V-BELT 1. Remove: footboard Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3. 2. Remove: V-belt case cover Refer to KICKSTARTER. 3.
_
3 2 1 4
NOTE: While holding the clutch housing with the sheave holder 4, loosen the secondary sheave nut.
Do not remove the clutch carrier nut at this stage. NOTE: While holding the clutch carrier with the rotor holding tool 1, loosen the clutch carrier nut one full turn with the socket wrench 2.
_
4 - 46
BELT DRIVE
2
5. Remove: secondary sheave 1 V-belt 2
ENG
NOTE: Pull the secondary sliding sheave out as shown, remove the V-belt along with the secondary sheave 1, and then remove the V-belt 2 from the primary sheave.
_
6. Remove: gasket 1
EASF0031
1 2 3
REMOVING THE PRIMARY SHEAVE 1. Remove: primary sheave nut 1 conical spring washer kickstarter one-way clutch claw washer primary fixed sheave 2 washer primary sliding sheave NOTE: While holding the primary fixed sheave with the sheave holder 3, loosen the primary sheave nut.
_
4 - 47
BELT DRIVE
3 3 1 2
2.
ENG
Remove: plastic slider guides 1 slider 2 primary sheave weights 3 spacer 4 oil seals
1 3 4
EAS00319
DISASSEMBLING THE SECONDARY SHEAVE 1. Remove: clutch carrier nut 1 NOTE: Install the clutch spring holder 2 onto the secondary sheave as shown. Then, compress the spring, and remove the clutch carrier nut.
_
2. 3.
Remove: spring seat Remove: guide pins 1 secondary sliding sheave secondary fixed sheave
4 - 48
BELT DRIVE
EAS00290
ENG
CHECKING THE CLUTCH HOUSING 1. Check: clutch housing Damage/wear Replace. 2. Measure: clutch housing inside diameter a Out of specification Replace the clutch housing. Clutch housing inside diameter 112 mm (4.41 in) <Limit>: 112.5 mm (4.43 in)
EAS00291
CHECKING THE CLUTCH SHOES The following procedure applies to all of the clutch shoes. 1. Check: clutch shoe Damage/wear Replace the clutch shoes and springs as a set. Glazed areas Sand with course sandpaper. NOTE: After sanding the glazed areas, clean the clutch with a cloth.
_
2. Measure: clutch shoe thickness a Out of specification Replace the clutch shoes and springs as a set. Clutch shoe thickness 3.0 mm (0.12 in) <Limit>: 1.0 mm (0.04 in)
4 - 49
BELT DRIVE
EAS00320
ENG
CHECKING THE V-BELT 1. Check: V-belt 1 Cracks/damage/wear Replace. Grease/oil Clean the primary and secondary sheave. 2. Measure: V-belt width a Out of specification Replace. V-belt width 18.2 mm (0.72 in) <Limit>: 17.2 mm (0.68 in)
EAS00321
CHECKING THE PRIMARY SHEAVE WEIGHTS The following procedure applies to all of the primary sheave weights. 1. Check: primary sheave weight Cracks/damage/wear Replace.
2. Measure: primary sheave weight outside diameter a Out of specification Replace. Primary sheave weight outside diameter 15 mm (0.59 in) <Limit>: 14.5 mm (0.57 in)
a
EAS00322
CHECKING THE SECONDARY SHEAVE 1. Check: secondary fixed sheave secondary sliding sheave Cracks/damage/wear Replace the secondary fixed and sliding sheaves as a set.
4 - 50
BELT DRIVE
ENG
2. Check: torque cam groove 1 Damage/wear Replace the secondary fixed and sliding sheaves as a set. 3. Check: guide pin 2 Damage/wear Replace the secondary fixed and sliding sheaves as a set.
1
4. Check: spring free length Out of specification Replace the spring. Spring free length 74.3 mm (2.93 in) <Limit>: 70.6 mm (2.78 in)
EAS00323
ASSEMBLING THE PRIMARY SHEAVE 1. Clean: primary fixed sheave primary sliding sheave spacer primary sheave weights
2. 3.
Install: oil seal New Lubricate: primary sliding sheave spacer Recommended lubricant Shell Dolium Grease R
NOTE: Fill the notch of the primary sliding sheave with grease. Apply grease to the inner surface of the primary sliding sheave as shown. CAUTION: Do not get any grease on the surfaces of the sheaves. If any grease gets on the sheaves, be sure to wipe it off with alcohol, etc.
4 - 51
BELT DRIVE
1 1 3 4
4.
ENG
3 1 2
NOTE: When installing the primary sliding sheave, hold the slider to prevent the primary sheave weights from falling out of the primary sliding sheave.
4 1 2 3 4 5
6.
Install: washer 1 primary fixed sheave 2 claw washer 3 kickstarter one-way clutch 4 conical spring washer 5 primary sheave nut 6
50 Nm (5.0 m kg, 36 ft lb)
T.
6
_
NOTE: Install the conical spring washer 5 as shown in the illustration. While holding the primary fixed sheave with the sheave holder, tighten the primary sheave nut.
R.
4 - 52
BELT DRIVE
EAS00324
ENG
1 2
ASSEMBLING THE SECONDARY SHEAVE 1. Lubricate: secondary fixed sheaves inner surface 1 secondary sliding sheaves inner surface 2 oil seals bearings (with the recommended lubricant) Recommended lubricant Shell Dolium Grease R CAUTION: Do not get any grease on the surfaces of the sheaves. If any grease gets on the sheaves, be sure to wipe it off with alcohol, etc.
2.
Install: oil seals New secondary sliding sheave 1 secondary fixed sheave 2
NOTE: Install the secondary sliding sheave onto the secondary fixed sheave 2 with the oil seal guide 3.
_
Oil seal guide 90890-01384 3. Lubricate: secondary sliding sheaves inner surface (with the recommended lubricant) Recommended lubricant Shell Dolium Grease R NOTE: Apply 3 cc of Shell Dolium Grease R to the inner surface of the secondary fixed sheave.
4 - 53
BELT DRIVE
1
4. Install: guide pin 1
ENG
2 New 1
5. Lubricate: guide pin groove 1 O-rings 2 New (with the recommended lubricant) Recommended lubricant Shell Dolium Grease R NOTE: Apply 1 cc of Shell Dolium Grease R to the guide pin groove.
_
6. Install: spring seat 1 CAUTION: Do not get any grease on the surfaces a and b of the sheaves. If any grease gets on the sheaves, be sure to wipe it off with alcohol, etc.
4 - 54
BELT DRIVE
2 3 1 3
7. Install: spring clutch carrier 1
ENG
NOTE: Attach the clutch spring holder 2 onto the secondary sheave as shown. Then, compress the spring, and tighten the clutch carrier nut 3. Install the clutch carrier nut with the beveled side of the nut facing the clutch carrier.
_
EAS00325
a 1 New
INSTALLING THE BELT DRIVE For installation, reverse the removal procedure. 1. Install: gasket 1 New V-belt 2 secondary sheave 3 CAUTION:
_
Do not allow grease to contact the V-belt, secondary sheave assembly. NOTE: The V-belt must be installed, with the arrows a facing forward. Install the V-belt on the primary sheave, then install the secondary sheave 3 along with the V-belt 2. When installing the secondary sheave, do not get grease from the inner surface of the secondary sheave on the primary drive gear.
_
4 - 55
BELT DRIVE
2. Install: clutch carrier nut
ENG
NOTE: While holding the clutch carrier with the rotor holding tool 1, tighten the clutch carrier nut with the socket wrench 2.
_
T.
R.
1 2 3
3. Position: V-belt 1 NOTE: Position the V-belt in the primary sheave 2 (when the sheave is at its widest position) and in the secondary sheave 3 (when the sheave is at its narrowest position), and make sure the V-belt is tight.
_
1 3 2
R.
O-ring NOTE: Tighten the secondary sheave nut with the sheave holder 3.
_
4 - 56
STARTER CLUTCH
EAS00341
ENG
STARTER CLUTCH
1 Idle gear plate 2 Idle gear 3 Idle gear shaft 4 Starter clutch assembly 5 Starter wheel gear holder 6 Starter wheel gear 7 Bearing
4 - 57
STARTER CLUTCH
EAS00344
ENG
2 3
REMOVING THE STARTER CLUTCH 1. Remove: footboard Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3. 2. Remove: V-belt case cover Refer to KICKSTARTER. primary sliding sheave Refer to BELT DRIVE. 3. Remove: idle gear plate 1 washer idle gear 2 washer starter clutch assembly 3
2 3 1
4.
EAS00348
CHECKING THE STARTER CLUTCH 1. Check: idle gear starter wheel gear starter clutch assembly Burrs/chips/roughness/wear Replace the defective part(s).
2. Check: starter wheel gear contacting surface Damage/pitting/wear Replace the starter wheel gear.
4 - 58
STARTER CLUTCH
1 2
3. Check: starter clutch operation
ENG
a. Install the starter wheel gear 1 onto the starter clutch 2 and hold the starter clutch. b. When turning the starter wheel gear clockwise , the starter clutch and the starter wheel gear should engage, otherwise the starter clutch is faulty and must be replaced. c. When turning the starter wheel gear counterclockwise , it should turn freely, otherwise the starter clutch is faulty and must be replaced.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
EAS00355
INSTALLING THE STARTER CLUTCH 1. Install: bearing NOTE: Apply a thin coat of grease to the needle bearing.
Recommended lubricant Lithium-soap-based grease 2. Install: starter wheel gear 1 starter clutch assembly 2 NOTE: Pour a few drops of molybdenum disulfide oil on the areas of the starter clutch shown. When installing the starter clutch assembly, turn the starter wheel gear in the direction of the arrow shown.
_
4 - 59
STARTER CLUTCH
ENG
3. Install: starter wheel gear holder 1 starter wheel gear holder bolt
10 Nm (1.0 m kg, 7.2 ft lb)
NOTE: Install the starter wheel gear holder in the direction shown so that the section a of the holder contacts the left crankcase. 4. Install: idle gear plate idle gear plate bolts
10 Nm (1.0 m kg, 7.2 ft lb)
T.
T.
R. R.
4 - 60
ENG
4 - 61
A.C. MAGNETO
EAS00346
ENG
REMOVING THE A.C. MAGNETO 1. Remove: air filter case Refer to AIR FILTER CASE in chapter 5. 2. Remove: engine cooling fan cover engine cooling fan Refer to CYLINDER HEAD. 3. Remove: A.C. magneto rotor nut 1 washer NOTE: While holding the A.C. magneto rotor 2 with the rotor holding tool 3, loosen the A.C. magneto rotor nut.
_
4. Remove: A.C. magneto rotor 1 (with the flywheel puller 2) woodruff key Flywheel puller 90890-01189
5.
4 - 62
A.C. MAGNETO
EAS00354
ENG
INSTALLING THE A.C. MAGNETO For installation, reverse the removal procedure. 1. Install: stator coil assembly 1 stator coil assembly bolts
11 Nm (1.1 m kg, 8.0 ft lb)
NOTE: Pass the stator coil lead under the pickup coil bracket.
T.
R.
T.
R.
2.
_
Install: woodruff key A.C. magneto rotor 1 washer A.C. magneto rotor nut
NOTE: Clean the tapered portion of the crankshaft and the A.C. magneto rotor hub. When installing the A.C. magneto rotor, make sure the woodruff key is properly seated in the keyway of the crankshaft. 3. Tighten: A.C. magneto rotor nut 1
70 Nm (7.0 m kg, 50 ft lb)
NOTE: While holding the A.C. magneto rotor 2 with the rotor holding tool 3, tighten the A.C. magneto rotor nut.
_
T.
R.
4 - 63
OIL PUMP
EASF0035
ENG
OIL PUMP
1 Oil pump cover 2 Oil seal 3 O-ring 4 Gasket 5 Dowel pin 6 Oil pump assembly 7 Gasket 8 Engine oil strainer 9 Spring 0 O-ring A Engine oil drain plug
4 - 64
OIL PUMP
ENG
REMOVING THE OIL PUMP 1. Drain: engine oil (completely from the crankcase) Refer to CHANGING THE ENGINE OIL in chapter 3. 2. Remove: footboard Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3. 3. Remove: air filter case Refer to AIR FILTER CASE in chapter 5. 4. Remove: engine cooling fan cover engine cooling fan Refer to CYLINDER HEAD. stator coil assembly Refer to A.C. MAGNETO. 5. Remove: oil pump cover 1 O-ring gasket dowel pin
DISASSEMBLING THE OIL PUMP 1. Remove: oil pump housing cover 1 pin oil pump driven gear 2 inner rotor 3 outer rotor 4 oil pump housing 5
4 - 65
OIL PUMP
EAS00364
ENG
CHECKING THE OIL PUMP 1. Check: oil pump drive gear oil pump driven gear 1 oil pump housing 2 oil pump housing cover 3 Cracks/damage/wear Replace the defective part(s). 2. Measure: inner-rotor-to-outer-rotor-tip clearance a outer-rotor-to-oil-pump-housing clearance b oil-pump-housing-to-inner-rotor-and-outerrotor clearance c Out of specification Replace the oil pump.
1 Inner rotor 2 Outer rotor 3 Oil pump housing
Inner-rotor-to-outer-rotor-tip clearance 0.15 mm (0.0059 in) <Limit>: 0.23 mm (0.0091 in) Outer-rotor-to-oil-pump-housing clearance 0.13 ~ 0.18 mm (0.0051 ~ 0.0071 in) <Limit>: 0.25 mm (0.0098 in) Oil-pump-housing-to-inner-rotorand-outer-rotor clearance 0.06 ~ 0.10 mm (0.0024 ~ 0.0039 in) <Limit>: 0.17 mm (0.0067 in)
3. Check: oil pump operation Rough movement Repeat steps (1) and (2) or replace the defective part(s).
4 - 66
OIL PUMP
EAS00368
ENG
CHECKING THE OIL STRAINER 1. Check: oil strainer 1 Damage Replace. Contaminants Clean with solvent.
EAS00375
ASSEMBLING THE OIL PUMP 1. Lubricate: inner rotor outer rotor oil pump shaft (oil pump driven gear) (with the recommended lubricant) Recommended lubricant Engine oil 2. Install: oil pump driven gear 1 (to the oil pump housing 2) outer rotor 3 inner rotor 4 pin 5 oil pump housing cover NOTE: Install the inner rotor and outer rotor with their punch marks a facing away from the oil pump housing. When installing the inner rotor, align the pin in the oil pump driven gear with the groove b in the inner rotor.
_
EAS00376
INSTALLING THE OIL PUMP For installation, reverse the removal procedure. 1. Install: gasket New oil pump assembly oil pump assembly screws
4 Nm (0.4 m kg, 2.9 ft lb)
T.
R.
4 - 67
OIL PUMP
CAUTION:
_
ENG
After tightening the bolts, make sure the oil pump turns smoothly. 2. Install: gasket New O-ring New oil pump cover oil pump cover bolts
10 Nm (1.0 m kg, 7.2 ft lb)
T.
R.
4 - 68
TRANSMISSION
EASF0041
ENG
TRANSMISSION
1 Drive axle 2 Oil seal 3 Conical spring washer 4 Drive axle gear 5 Main axle 6 Conical spring washer 7 Dowel pin 8 Oil seal 9 Transmission case cover 0 Gasket A Primary drive gear
4 - 69
TRANSMISSION
EASF0042
ENG
REMOVING THE TRANSMISSION NOTE: Prior to remove the transmission, remove the muffler, rear wheel and secondary sheave.
_
1. Drain: transmission oil (completely from the transmission case) Refer to CHANGING THE TRANSMISSION OIL in chapter 3. 2. Remove: transmission case cover 1 (with primary drive gear, bearings) gasket dowel pins
4.
Remove: primary drive gear 1 retainer bolt 2 primary drive gear bearing 3
1 3
5.
Remove: washer 1 conical spring washer drive axle gear 2 conical spring washer main axle 3
3 1
4 - 70
TRANSMISSION
6. Remove: drive axle 1 (with circlip)
ENG
EAS00425
CHECKING THE TRANSMISSION 1. Check: drive axle main axle primary drive gear drive axle gear Damage/wear Replace. 2. Check: bearings Rough movement Replace. 3. Check: circlips Bends/damage/looseness Replace.
EAS00428
a New 1
INSTALLING THE TRANSMISSION 1. Install: drive axle circlip 1 New NOTE: Make sure the circlip 1 is inserted into the groove a in the drive axle.
_
4 3 3 1 5 2
2.
_
Install: main axle 1 conical spring washer 2 drive axle gear 3 conical spring washer 4 washer 5
4 - 71
TRANSMISSION
ENG
T.
R.
4.
Install: primary drive gear circlip New oil seal New dowel pins gasket New transmission case cover (with primary drive gear, bearings) transmission case cover bolts
13 Nm (1.3 m kg, 9.4 ft lb)
T.
5. Check: transmission Rough movement Repair. NOTE: Oil each gear, shaft, and bearing thoroughly.
_
R.
4 - 72
CRANKSHAFT
EASF0037
ENG
CRANKSHAFT
1 Crankcase (right) 2 Crankshaft assembly 3 Timing chain 4 Timing chain guide (intake side) 5 Dowel pin 6 Crankcase (left) 7 Oil seal 8 Engine drain bolt 9 Rubber damper 0 Collar A Engine bracket B Spacer C Centerstand shaft D Centerstand spring E Centerstand
4 - 73
CRANKSHAFT
EAS00385
ENG
DISASSEMBLING THE CRANKCASE 1. Remove: engine assembly Refer to REMOVING THE ENGINE. 2. Remove: cylinder head cylinder piston Refer to CYLINDER HEAD and CYLINDER AND PISTON. 3. Remove: V-belt case cover Refer to KICKSTARTER. 4. Remove: secondary sheave V-belt primary sheave Refer to BELT DRIVE. 5. Remove: starter clutch Refer to STARTER CLUTCH. 6. Remove: starter motor Refer to STARTER MOTOR in chapter 7. 7. Remove: A.C. magneto rotor Refer to A.C. MAGNETO. 8. Remove: oil pump Refer to OIL PUMP. 9. Remove: rear wheel assembly Refer to REAR WHEEL AND BRAKE in chapter 6. 10.Remove: rubber dampers 1 collars engine bracket 2
4 - 74
CRANKSHAFT
ENG
13.Remove: crankcase bolts NOTE: Loosen each bolt 1/4 of a turn at a time, in stages and in a crisscross pattern. After all of the bolts are fully loosened, remove them.
_
Tap on one side of the crankcase with a soft-face hammer. Tap only on reinforced portions of the crankcase, not on the crankcase mating surfaces. Work slowly and carefully and make sure the crankcase halves separate evenly.
EASF0040
1 2
REMOVING THE CRANKSHAFT ASSEMBLY 1. Remove: crankshaft assembly 1 timing chain 2 NOTE: Before removing the crankshaft assembly, remove the timing chain from the crankshaft drive sprocket. The crankshaft assembly cannot be removed if the timing chain is attached onto the crankshaft drive sprocket.
_
4 - 75
CRANKSHAFT
EAS00207
ENG
CHECKING THE TIMING CHAIN AND TIMING CHAIN GUIDE 1. Check: timing chain Damage/stiffness Replace the timing chain and camshaft sprocket as a set.
EAS00394
CHECKING THE CRANKSHAFT AND CONNECTING ROD 1. Measure: crankshaft runout 1 Out of specification Replace the crankshaft, bearing or both. NOTE: Turn the crankshaft slowly.
_
Maximum crankshaft runout 0.03 mm (0.0012 in) 2. Measure: big end side clearance 2 Out of specification Replace the crankshaft. Big end side clearance 0.15 ~ 0.45 mm (0.0059 ~ 0.0177 in) 3. Measure: crankshaft width 3 Out of specification Replace the crankshaft. Crankshaft width 45.45 ~ 45.50 mm (1.789 ~ 1.791 in)
4 - 76
CRANKSHAFT
ENG
4. Check: crankshaft drive sprocket 1 Damage/wear Replace the crankshaft. bearings 2 Cracks/damage/wear Replace the crankshaft. oil pump drive gear 3 Damage/wear Replace the crankshaft.
5. Check: crankshaft journal Scratches/wear Replace the crankshaft. crankshaft journal oil passage Obstruction Blow out with compressed air.
EAS00399
CHECKING THE CRANKCASE 1. Thoroughly wash the crankcase halves in a mild solvent. 2. Thoroughly clean all the gasket surfaces and crankcase mating surfaces. 3. Check: crankcase Cracks/damage Replace. oil delivery passages Obstruction Blow out with compressed air.
EAS00401
CHECKING THE BEARINGS AND OIL SEALS 1. Check: bearings Clean and lubricate the bearings, then rotate the inner race with your finger. Rough movement Replace. 2. Check: oil seals Damage/wear Replace.
4 - 77
CRANKSHAFT
EAS00408
ENG
To avoid scratching the crankshaft and to ease the installation procedure, lubricate the oil seal lips with lithium-soap-based grease and each bearing with engine oil. NOTE: After installing the crankshaft to the left crankcase, make sure that the timing chain meshes with the camshaft drive sprocket and the crankshaft turns smoothly.
_
EAS00416
ASSEMBLING THE CRANKCASE 1. Apply: sealant (onto the crankcase mating surfaces) Yamaha bond No. 1215 90890-85505 NOTE: Do not allow any sealant to come into contact with the oil gallery.
_
2. 3.
Install: dowel pins 1 Install: right crankcase (onto the left crankcase)
5. Install: timing chain guide (intake side) timing chain guide retainer bolt
7 Nm (0.7 m kg, 5.1 ft lb)
T.
T.
R. R.
4 - 78
CRANKSHAFT
ENG
6. Check: crankshaft operation Rough movement Repair. 7. Lubricate: centerstand shaft (with the recommended lubricant) Recommended lubricant Lithium-soap-based grease 8. Install: centerstand spring centerstand centerstand shaft washer circlip New
9.
Install: spacers rubber dampers 1 engine bracket 2 lower engine mounting bolts 3 nuts 4 8 mm bolt 5
NOTE: Do not fully tighten the lower engine mounting bolts and nuts. Insert an 8 mm bolt or similar rod into the hole in the engine bracket and into the hole in the left crankcase to ease the installation procedure. 10.Tighten: nuts 4
NOTE: First tighten the nuts on the left crankcase side, and then tighten the nuts on the right crankcase side. 11.Remove: 8 mm bolt 5
T.
R.
4 - 79
CRANKSHAFT
ENG
12.Install: upper engine mounting bolts 1 nuts 2 NOTE: Push the engine bracket in the direction of the arrow shown and install the upper engine mounting bolts. 13.Tighten: nuts 2
T.
R.
4 - 80
CARB
CHAPTER 5 CARBURETOR
CARBURETOR................................................................................................5-1 REMOVING THE CARBURETOR............................................................. 5-2 DISASSEMBLING THE CARBURETOR................................................... 5-3 CHECKING THE CARBURETOR ............................................................. 5-4 ASSEMBLING THE CARBURETOR.........................................................5-7 MEASURING AND ADJUSTING THE FUEL LEVEL ................................5-8 INSTALLING THE CARBURETOR ........................................................... 5-9 CHECKING THE FUEL COCK OPERATION............................................5-9 FUEL TANK ................................................................................................... 5-11 REMOVING THE FUEL TANK ................................................................5-11 INSTALLING THE FUEL TANK...............................................................5-12 AIR FILTER CASE ........................................................................................ 5-13 REMOVING THE AIR FILTER CASE......................................................5-13 INSTALLING THE AIR FILTER CASE ....................................................5-13
CARB
CARBURETOR
EASF0480
CARB
CARBURETOR
CARBURETOR
1 Cylinder head breather hose holder 2 Vacuum chamber cover 3 Piston valve spring 4 Jet needle set 5 Piston valve 6 Throttle stop screw set 7 Starter plunger assembly 8 Coasting enricher set 9 Pilot screw set 0 Needle valve A Needle jet B Cap C Needle jet holder D Main jet E Pilot jet F Float G Float pivot pin H Gasket I Float chamber J Fuel drain screw K Fuel overflow hose
5-1
CARBURETOR
EASF0481
CARB
REMOVING THE CARBURETOR WARNING Gasoline is highly flammable. Avoid spilling fuel on the hot engine. 1. Remove: fuel tank Refer to FUEL TANK. 2. Remove: air filter case Refer to AIR FILTER CASE. 3. Loosen: fuel drain screw 1 4. Drain: fuel (from the float chamber)
5. Loosen: locknut (throttle cable) 1 NOTE: Slide the rubber cover 2 back, and then loosen the locknut. 6. Disconnect: throttle cable 3
1 2 3
5 3 1 4
7. 8.
Disconnect: fuel hose 1 Remove: cylinder head breather hose (from the hose holder) 2 starter plunger assembly (from the carburetor body) 3 fuel overflow hose (from the hose holder) 4 carburetor assembly 5
NOTE: Slide the rubber cover back, and then remove the starter plunger assembly.
5-2
CARBURETOR
CARB
EASF0483
DISASSEMBLING THE CARBURETOR NOTE: The following parts can be cleaned and inspected without disassembly. Throttle stop screw Pilot screw Coasting enricher
2 4 1
1.
Remove: cylinder head breather hose holder 1 vacuum chamber cover 2 piston valve spring 3 piston valve 4
3
2. Remove: jet needle holder 1 jet needle spring 2 jet needle 3
3 2 1
3.
Remove: fuel overflow hose 1 float chamber 2 float chamber rubber gasket
5-3
CARBURETOR
4. Remove: float pin screw 1 float pivot pin 2 float 3 needle valve 4
CARB
3 1 4 2
4 3 2 1 5
5.
Remove: main jet 1 needle jet holder 2 cap 3 needle jet 4 pilot jet 5
6.
4 1 3 2
Remove: coasting enricher cover 1 coasting enricher spring 2 coasting enricher 3 O-ring 4
EAS00485
CHECKING THE CARBURETOR 1. Check: carburetor body float chamber jet housing Cracks/damage Replace.
5-4
CARBURETOR
2. Check: fuel passages Obstruction Clean.
CARB
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Wash the carburetor in a petroleum-based solvent. Do not use any caustic carburetor cleaning solution. b. Blow out all of the passages and jets with compressed air.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
3. Check: float chamber body Dirt Clean. 4. Check: float chamber rubber gasket Cracks/damage/wear Replace.
6. Check: needle valve 1 needle valve seat 2 Damage/obstruction/wear Replace the needle valve and carburetor body as a set.
2 1
7. Check: piston valve 1 Damage/scratches/wear Replace. piston valve diaphragm 2 Cracks/tears Replace. 8. Check: vacuum chamber cover piston valve spring
5-5
CARBURETOR
1 2 3 5 4 7 6 8
9.
CARB
Check: jet needle holder 1 jet needle spring 2 jet needle 3 needle jet holder 4 needle jet 5 main jet 6 pilot jet 7 pilot screw 8 Bends/damage/wear Replace. Obstruction Clean. Blow out the jets with compressed air. 10.Check: piston valve movement Insert the piston valve into the carburetor body and move it up and down. Tightness Replace the piston valve.
11.Check: starter plunger 1 starter plunger spring 2 Bends/cracks/damage Replace. 12.Check: coasting enricher coasting enricher spring coasting enricher cover Clog/cracks/damage Replace. 13.Check: vacuum hose fuel hose Cracks/damage/wear Replace. Obstruction Clean. Blow out the hoses with compressed air.
5-6
CARBURETOR
EAS00487
CARB
ASSEMBLING THE CARBURETOR For assembly, reverse the disassembly procedure. CAUTION:
_
Before assembling the carburetor, wash all of the parts in a petroleum-based solvent. Always use a new gasket and O-ring. 1. Install: pilot screw
a
Pilot screw setting 2-3/8 turns out 2. Install: jet needle jet needle spring jet needle holder
NOTE: When installing the jet needle holder, align the notches a in the jet needle holder with the projections b on the piston valve.
b a 1
3. Install: piston valve 1 NOTE: Match the tab a on the piston diaphragm to the matching recess b in the carburetor body. Make sure that the rim of the piston diaphragm is installed in the groove in the carburetor body.
5-7
CARBURETOR
EAS00498
CARB
a 4
MEASURING AND ADJUSTING THE FUEL LEVEL 1. Measure: fuel level a Out of specification Adjust. Fuel level (above the float chamber mating surface) 7.0 ~ 9.0 mm (0.28 ~ 0.35 in)
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Connect the carburetor to a temporary fuel tank and supply fuel to the carburetor. b. Install the fuel level gauge 1 onto the fuel drain pipe 2. Fuel level gauge 90890-01312 c. Loosen the fuel drain screw 3. d. Hold the fuel level gauge vertically next to the float chamber 4. e. Measure the fuel level a. NOTE: Make sure that the carburetor is level. The carburetor must be level to measure the fuel level correctly.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
a. Check the needle valve seat and needle valve. b. If either is worn, replace them as a set. c. If both are fine, adjust the float level by slightly bending the float tang 1. d. Measure the fuel level again. e. Repeat steps (a) to (d) until the fuel level is within specification.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
5-8
CARBURETOR
EAS00492
CARB
a b
INSTALLING THE CARBURETOR For installation, reverse the removal procedure. 1. Install: carburetor assembly NOTE: When installing the carburetor assembly, align the slot a in the carburetor assembly with the projection b on the intake manifold. 2. Install: fuel overflow hose cylinder head breather hose (from the hose holder) fuel hose throttle cable WARNING Proper hose and cable routing are essential to insure safe motorcycle operation. Refer to CABLE ROUTING in chapter 2. 3. Adjust: engine idling speed Engine idling speed (with headlight on) 1,400 ~ 1,600 r/min Refer to ADJUSTING THE IDLING SPEED in chapter 3. 4. Adjust: throttle cable free play ENGINE
Throttle cable free play (at the flange of the throttle grip) 3 ~ 7 mm (0.12 ~ 0.18 in) Refer to ADJUSTING THE THROTTLE CABLE FREE PLAY in chapter 3.
EAS00506
CHECKING THE FUEL COCK OPERATION 1. Place a container under the end of the fuel hose 1.
5-9
CARBURETOR
2. Check: fuel cock operation
CARB
a. Suck on the end of the vacuum hose 1. Fuel flows. Fuel does not flow. Fuel cock is OK. Replace the fuel cock.
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
5 - 10
FUEL TANK
EASF0006
CARB
FUEL TANK
REMOVING THE FUEL TANK 1. Remove: side cover (left and right) Refer to REMOVING THE SEAT AND SIDE COVERS in chapter 3. 2. Remove: battery Refer to CHECKING AND CHARGING THE BATTERY in chapter 3. 3. Disconnect: starter relay lead coupler 1 fuse connector 2 battery breather hose 2 3
1 3 2
3 2
4. 5.
Disconnect: starter motor lead coupler 1 Remove: starter relay 2 fuse holder 3
3 5
7. 8.
1 2
Disconnect: fuel hose 1 vacuum hose 2 fuel sender coupler 3 Remove: grab bar 4 fuel tank 5
5 - 11
FUEL TANK
CARB
INSTALLING THE FUEL TANK For installation, reverse the removal procedure. 1. Install: 7 Nm (0.7 m kg, 5.1 ft lb) fuel tank 7 Nm (0.7 m kg, 5.1 ft lb) grab bar 2. Connect: vacuum hose fuel hose fuel sender coupler Refer to CABLE ROUTING in chapter 2.
T. T.
R. R.
1 2
3. Install: fuse holder 1 starter relay 2 NOTE: Install the fuse holder and the starter relay in the storage box as shown. 4. Connect: starter motor lead coupler starter relay lead coupler fuse connector battery breather hose 2 Refer to CABLE ROUTING in chapter 2.
5 - 12
CARB
1 4 5 2
6 5 7
NOTE: Unhook the mud flap 7 from the check cap, and then remove the air filter case bolts.
INSTALLING THE AIR FILTER CASE For installation, reverse the removal procedure. 1. Install: collar air filter case air filter case bolts
7 Nm (0.7 m kg, 5.1 ft lb)
T.
R.
2.
Connect: cylinder head breather hose 1 ignition coil connector A.C. magneto couplers Refer to CABLE ROUTING in chapter 2.
NOTE: Install the cylinder head breather hose between the projections on the air filter case.
5 - 13
CHAS
CHAPTER 6 CHASSIS
FRONT WHEEL AND BRAKE DISC............................................................... 6-1 REMOVING THE FRONT WHEEL............................................................ 6-2 CHECKING THE FRONT WHEEL ............................................................ 6-3 CHECKING THE BRAKE DISC.................................................................6-5 CHECKING THE SPEEDOMETER GEAR UNIT ...................................... 6-6 INSTALLING THE FRONT WHEEL .......................................................... 6-7 REAR WHEEL AND BRAKE ..........................................................................6-9 REMOVING THE REAR WHEEL AND REAR BRAKE ........................... 6-10 CHECKING THE REAR WHEEL............................................................. 6-11 CHECKING THE BRAKE ........................................................................6-12 INSTALLING THE REAR WHEEL AND REAR BRAKE.......................... 6-13 FRONT BRAKE ............................................................................................. 6-15 FRONT BRAKE CALIPER....................................................................... 6-15 REPLACING THE FRONT BRAKE PADS .............................................. 6-16 DISASSEMBLING THE FRONT BRAKE CALIPER ................................6-18 CHECKING THE FRONT BRAKE CALIPER ..........................................6-19 ASSEMBLING AND INSTALLING THE FRONT BRAKE CALIPER ....... 6-20 FRONT BRAKE MASTER CYLINDER....................................................6-23 DISASSEMBLING THE FRONT BRAKE MASTER CYLINDER ............. 6-24 CHECKING THE FRONT BRAKE MASTER CYLINDER........................ 6-26 ASSEMBLING AND INSTALLING THE FRONT BRAKE MASTER CYLINDER ............................................................................. 6-27 FRONT FORK................................................................................................6-31 REMOVING THE FRONT FORK LEGS.................................................. 6-32 DISASSEMBLING THE FRONT FORK LEGS ........................................ 6-33 CHECKING THE FRONT FORK LEGS .................................................. 6-34 ASSEMBLING THE FRONT FORK LEGS .............................................. 6-35 INSTALLING THE FRONT FORK LEGS ................................................ 6-38 HANDLEBAR ................................................................................................6-39 REMOVING THE HANDLEBAR..............................................................6-40 CHECKING THE HANDLEBAR ..............................................................6-42 INSTALLING THE HANDLEBAR ............................................................ 6-42 STEERING HEAD.......................................................................................... 6-45 REMOVING THE LOWER BRACKET.....................................................6-46 CHECKING THE STEERING HEAD .......................................................6-47 INSTALLING THE STEERING HEAD .....................................................6-48
CHAS
REAR SHOCK ABSORBER ASSEMBLY ....................................................6-49 REMOVING THE REAR SHOCK ABSORBER ASSEMBLY................... 6-50 CHECKING THE REAR SHOCK ABSORBER ASSEMBLY ................... 6-51 CHECKING THE CRANKCASE (LEFT).................................................. 6-51 INSTALLING THE REAR SHOCK ABSORBER ASSEMBLY ................. 6-51
CHAS
CHASSIS
FRONT WHEEL AND BRAKE DISC
1 Front wheel axle 2 Brake disc 3 Spacer 4 Oil seal 5 Bearing 6 Spacer 7 Speedometer gear unit 8 Front wheel
6-1
CHAS
REMOVING THE FRONT WHEEL 1. Stand the motorcycle on a level surface. WARNING
_
Remove: speedometer cable 1 wheel axle nut 2 washer 3 Elevate: front wheel
NOTE: Place the motorcycle on a suitable stand so that the front wheel is elevated.
4.
Remove: front wheel axle 1 spacer 2 speedometer gear unit 3 front wheel
6-2
CHAS
CHECKING THE FRONT WHEEL 1. Check: wheel axle Roll the wheel axle on a flat surface. Bends Replace. WARNING
_
Wheel axle bending limit 0.25 mm (0.0098 in) 2. Check: tire front wheel Damage/wear Replace. Refer to CHECKING THE TIRES and CHECKING THE WHEELS in chapter 3. 3. Check: spokes Bends/damage Replace. Loose Tighten. Tap the spokes with a screwdriver. Refer to CHECKING AND TIGHTENING THE SPOKES in chapter 3.
4. Measure: radial wheel runout a lateral wheel runout b Over the specified limits Replace. Radial wheel runout limit 2.0 mm (0.079 in) Lateral wheel runout limit 2.0 mm (0.079 in)
6-3
CHAS
After mounting a new tire, ride conservatively for a while to become accustomed to the feel of the new tire and to allow the tire to seat itself properly in the rim. Failure to do so could lead to an accident with possible injury to the rider or damage to the motorcycle. After a tire has been repaired or replaced, be sure to tighten the tire air valve stem locknut 1 to specification.
6. Check: wheel bearings Front wheel turns roughly or is loose Replace the wheel bearings. oil seal Damage/wear Replace.
2 1 New
New
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Clean the outside of the front wheel hub. b. Remove the oil seal 1 with a flat-head screwdriver. NOTE: To prevent damaging the wheel, place a rag 2 between the screwdriver and the wheel surface.
_
c. Remove the wheel bearings 3 with a general bearing puller. d. Install the new wheel bearings and oil seal in the reverse order of disassembly.
6-4
CHAS
Do not contact the wheel bearing inner race 4 or balls 5. Contact should be made only with the outer race 6. NOTE: Use a socket 7 that matches the diameter of the wheel bearing outer race and oil seal.
_
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
EAS00527
CHECKING THE BRAKE DISC 1. Check: brake disc Damage/galling Replace. 2. Measure: brake disc deflection Out of specification Correct the brake disc deflection or replace the brake disc. Brake disc deflection limit (maximum) 0.15 mm (0.006 in)
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Place the motorcycle on a suitable stand so that the front wheel is elevated. b. Before measuring the front brake disc deflection, turn the handlebar to the left or right to ensure that the front wheel is stationary. c. Remove the brake caliper. d. Hold the dial gauge at a right angle against the brake disc surface. e. Measure the deflection 1.5 mm (0.059 in) below the edge of the brake disc.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
6-5
CHAS
3. Measure: brake disc thickness Measure the brake disc thickness at a few different locations. Out of specification Replace. Brake disc thickness limit (minimum) 3.0 mm (0.12 in) 4. Adjust: brake disc deflection
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Remove the brake disc. b. Rotate the brake disc by one bolt hole. c. Install the brake disc 1. NOTE: Tighten the brake disc bolts in stages and in a crisscross pattern.
_
d. Measure the brake disc deflection. e. If out of specification, repeat the adjustment steps until the brake disc deflection is within specification. f. If the brake disc deflection cannot be brought within specification, replace the brake disc.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
EAS00535
CHECKING THE SPEEDOMETER GEAR UNIT 1. Check: speedometer gear Bends/damage/wear Replace.
T.
R.
6-6
CHAS
INSTALLING THE FRONT WHEEL 1. Lubricate: wheel axle wheel bearings oil seal lips speedometer gear unit Recommended lubricant Lithium-soap-based grease 2. Install: speedometer gear unit 1 NOTE: Make sure that the speedometer gear unit and the wheel hub are installed with the projection a of the wheel hub inserted in a slot b of the speedometer gear unit. When installing the speedometer gear unit, make sure that the projection on the wheel hub does not damage the lip of the speedometer gear unit oil seal.
_
3. Install: brake disc Refer to CHECKING THE BRAKE DISC. 4. Install: speedometer gear unit spacer front wheel front wheel axle washer NOTE: Make sure the projection a on the speedometer gear unit fits over the stopper on the outer tube.
_
6-7
CHAS
T.
R.
WARNING
_
Before tightening the wheel axle nut, push down hard on the handlebar several times and check if the front fork rebounds smoothly. 6. Connect: speedometer cable
6-8
CHAS
6-9
CHAS
REMOVING THE REAR WHEEL AND REAR BRAKE 1. Stand the motorcycle on a level surface. WARNING
_
Securely support the motorcycle so that there is no danger of it falling over. NOTE: Place the motorcycle on a suitable stand so that the rear wheel is elevated.
_
3.
4.
Remove: adjusting nut 1 rear brake cable 2 pin 3 brake camshaft lever bolt 4 brake camshaft lever 5
6 - 10
CHAS
Remove: brake shoes 1 brake shoe spring (brake camshaft side) 2 brake shoe spring (pivot side) 3
2
7. Remove: brake camshaft 1 washer 2
1
EAS00566
CHECKING THE REAR WHEEL 1. Check: tire rear wheel Damage/wear Replace. Refer to CHECKING THE TIRES and CHECKING THE WHEELS in chapter 3. 2. Check: spokes Bends/damage Replace. Loose Tighten. Tap the spokes with a screwdriver. Refer to CHECKING AND TIGHTENING THE SPOKES in chapter 3. 3. Measure: radial wheel runout lateral wheel runout Refer to CHECKING THE FRONT WHEEL.
6 - 11
CHAS
CHECKING THE BRAKE The following procedure applies to all of the brake shoes. 1. Check: brake shoe lining Glazed areas Repair. Sand the glazed areas with course sandpaper. NOTE: After sanding the glazed areas, clean the brake shoe with a cloth.
_
2. Measure: brake shoe lining thickness a Out of specification Replace. Brake shoe lining thickness limit 2.0 mm (0.079 in) WARNING
_
Do not allow oil or grease to contact the brake shoes. NOTE: Replace the brake shoes as a set, if either is worn to the wear limit.
_
3. Check: brake drum inner surface Oil deposits Clean. Remove the oil with a rag soaked in lacquer thinner or solvent. Scratches Repair. Lightly and evenly polish the scratches with an emery cloth.
4. Measure: brake drum inside diameter a Out of specification Replace the wheel. Brake drum inside diameter limit 131 mm (5.16 in) 5. Check: brake camshaft Damage/wear Replace.
6 - 12
CHAS
INSTALLING THE REAR WHEEL AND REAR BRAKE 1. Lubricate: brake camshaft Recommended lubricant Lithium-soap-based grease 2. Install: washer brake camshaft 1 WARNING
_
After installing the brake camshaft, remove any excess grease. NOTE: Install the brake camshaft 1 with the punch mark a facing away from the motorcycle.
_
a. Install the brake camshaft so its punch mark a is positioned as shown. b. Align the projection b on the brake shoe wear indicator with the notch in the brake shoe camshaft. c. Check that the brake shoes are properly positioned.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
4.
_
Install: brake shoe spring (brake camshaft side) 1 brake shoe spring (pivot side) 2 brake shoes
NOTE: Do not to damage the springs during installation. Install the brake shoe spring as shown.
6 - 13
CHAS
Install: brake camshaft lever 1 brake camshaft lever bolt 2 pin 3 rear brake cable 4 adjusting nut 5
NOTE: Align the punch mark on the brake camshaft with the mark on the brake camshaft lever positioned as shown a. Lubricate the brake camshaft 6 and pin 3 with lithium-soap-based grease. 6. Tighten: brake camshaft lever bolt
7 Nm (0.7 m kg, 5.1 ft lb) 105 Nm (10.5 m kg, 75 ft lb)
T.
R.
R.
CAUTION:
_
Do not loosen the wheel axle nut after tightening it to the specified torque. 7. Adjust: rear brake lever free play Rear brake lever free play (lever end) 10 ~ 20 mm (0.39 ~ 0.79 in) Refer to ADJUSTING THE REAR BRAKE in chapter 3.
6 - 14
CHAS
6 - 15
FRONT BRAKE
EAS00579
CHAS
CAUTION:
_
Disc brake components rarely require disassembly. Therefore, always follow these preventive measures: Never disassemble brake components unless absolutely necessary. If any connection on the hydraulic brake system is disconnected, the entire brake system must be disassembled, drained, cleaned, properly filled, and bled after reassembly. Never use solvents on internal brake components. Use only clean or new brake fluid for cleaning brake components. Brake fluid may damage painted surfaces and plastic parts. Therefore, always clean up any spilt brake fluid immediately. Avoid brake fluid coming into contact with the eyes as it can cause serious injury. FIRST AID FOR BRAKE FLUID ENTERING THE EYES: Flush with water for 15 minutes and get immediate medical attention.
EAS00581
REPLACING THE FRONT BRAKE PADS NOTE: When replacing the brake pads, it is not necessary to disconnect the brake hose or disassemble the brake caliper.
_
1. 2.
Remove: brake hose holder 1 brake caliper lower bolt 2 brake caliper upper bolt 3 brake caliper 4 Remove: pin 1 brake pad holding bolt 2 brake pads 3 (along with the brake pad shim) brake pad spring 4
6 - 16
FRONT BRAKE
CHAS
3. Measure: brake pad wear limit a Out of specification Replace the brake pads as a set. Brake pad wear limit 0.8 mm (0.031 in)
4. Install: brake pad shim (onto the brake pad) brake pads brake pad spring NOTE: Always install new brake pads, a new brake pad shim and a new brake pad spring as a set.
_
a. Connect a clear plastic hose 1 tightly to the bleed screw 2. Put the other end of the hose into an open container. b. Loosen the bleed screw and push the brake caliper piston into the brake caliper with your fingers. c. Tighten the bleed screw. Bleed screw 6 Nm (0.6 m kg, 4.3 ft lb)
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
d. Install a new brake pad shim onto the new brake pad. e. Install a new brake pad spring 3 and new brake pads. NOTE: Install the brake pad spring as shown.
_
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
Do not allow grease to contact the brake pads. Remove any excess grease.
T.
R.
6 - 17
FRONT BRAKE
6. Install: brake pad holding bolt
CHAS
brake caliper lower bolt brake hose holder 1 brake hose holder bolt
7 Nm (0.7 m kg, 5.1 ft lb)
T.
NOTE: Insert the end a of the brake hose holder 1 into the hole b in the outer tube, and then install the brake hose holder.
_
7. Check: brake fluid level Below the minimum level mark a Add the recommended brake fluid to the proper level. Refer to CHECKING THE BRAKE FLUID LEVEL in chapter 3. 8. Check: brake lever operation Soft or spongy feeling Bleed the brake system. Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM in chapter 3.
EAS00618
DISASSEMBLING THE FRONT BRAKE CALIPER NOTE: Before disassembling the brake caliper, drain the brake fluid from the entire brake system.
_
1. Remove: union bolt 1 copper washers 2 brake hose 3 brake hose holder 4 brake caliper lower bolt 5 brake caliper upper bolt 6 brake caliper 7 NOTE: Put the end of the brake hose into a container and pump out the brake fluid carefully.
_
T.
R.
T.
R. R.
T.
R.
6 - 18
FRONT BRAKE
CHAS
2. Remove: pin 1 brake pad holding bolt 2 brake pads 3 (along with the brake pad shim) brake pad spring 4
a. Blow compressed air into the brake hose joint opening to force out the piston from the brake caliper. WARNING
_
Cover the brake caliper piston with a rag. Be careful not to get injured when the piston is expelled from the brake caliper. Never try to pry out the brake caliper piston. b. Remove the brake caliper piston seals.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
EAS00630
CHECKING THE FRONT BRAKE CALIPER Recommended brake component replacement schedule Brake pads Piston seals Brake hose If necessary Every two years Every four years Every two years and whenever the brake is disassembled
Brake fluid
6 - 19
FRONT BRAKE
CHAS
1. Check: brake caliper piston 1 Rust/scratches/wear Replace the brake caliper piston. brake caliper cylinder 2 Scratches/wear Replace the brake caliper assembly. brake caliper body 3 Cracks/damage Replace the brake caliper assembly. brake fluid delivery passage (brake caliper body) Obstruction Blow out with compressed air. WARNING
_
EAS00634
Before installation, all internal brake components should be cleaned and lubricated with clean or new brake fluid. Never use solvents on internal brake components as they will cause the piston seals to swell and distort. Whenever a brake caliper is disassembled, replace the brake caliper piston seals.
Recommended brake fluid DOT 4 NOTE: If DOT 4 brake fluid is not available, DOT 3 brake fluid can be used.
_
6 - 20
FRONT BRAKE
CHAS
2. Install: brake caliper 1 (temporarily) copper washers 2 New brake hose 3 union bolt 4 26 Nm (2.6 m kg, 19 ft lb)
T.
R.
WARNING
_
Proper brake hose routing is essential to insure safe motorcycle operation. Refer to CABLE ROUTING in chapter 2. CAUTION:
_
When installing the brake hose onto the brake caliper 1, make sure the brake pipe a touches the projection b on the brake caliper. 3. 4. Remove: brake caliper Install: brake pad springs brake pads brake pad holding bolt
10 Nm (1.0 m kg, 7.2 ft lb)
T.
brake caliper lower bolt brake hose holder brake hose holder bolt
7 Nm (0.7 m kg, 5.1 ft lb)
T.
Refer to REPLACING THE FRONT BRAKE PADS. 5. Fill: brake master cylinder reservoir (with the specified amount of the recommended brake fluid) Recommended brake fluid DOT 4
R.
T.
R. R.
T.
R.
6 - 21
FRONT BRAKE
WARNING
_
CHAS
Use only the designated brake fluid. Other brake fluids may cause the rubber seals to deteriorate, causing leakage and poor brake performance. Refill with the same type of brake fluid that is already in the system. Mixing brake fluids may result in a harmful chemical reaction, leading to poor brake performance. When refilling, be careful that water does not enter the brake master cylinder reservoir. Water will significantly lower the boiling point of the brake fluid and could cause vapor lock. CAUTION:
_
Brake fluid may damage painted surfaces and plastic parts. Therefore, always clean up any spilt brake fluid immediately. NOTE: If DOT 4 brake fluid is not available, DOT 3 brake fluid can be used.
_
6. Bleed: brake system Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM in chapter 3. 7. Check: brake fluid level Below the minimum level mark a Add the recommended brake fluid to the proper level. Refer to CHECKING THE BRAKE FLUID LEVEL in chapter 3. 8. Check: brake lever operation Soft or spongy feeling Bleed the brake system. Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM in chapter 3.
6 - 22
FRONT BRAKE
EASF0050
CHAS
6 - 23
FRONT BRAKE
EAS00588
CHAS
DISASSEMBLING THE FRONT BRAKE MASTER CYLINDER NOTE: Before disassembling the front brake master cylinder, drain the brake fluid from the entire brake system.
_
1. Remove: front cowling Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3. 2. Remove: headlight assembly Refer to REMOVING THE HEADLIGHT ASSEMBLY in chapter 3. 3. Remove: front wheel Refer to FRONT WHEEL AND BRAKE DISC. 4. Remove: front fender screw 1 front fender bolts 2 collars front fender 3
5. Remove: rearview mirrors (left and right) 1 NOTE: Slide the rubber cover back and loosen the nut before removing each rearview mirror.
_
6. 7. 8.
Remove: speedometer cable 1 meter assembly cover screw left handlebar switch bracket 2 Disconnect: meter assembly coupler 3 left handlebar switch coupler 4 right handlebar switch coupler 5 Remove: meter assembly cover 6 (with left handlebar switch)
6 - 24
FRONT BRAKE
9. Remove: left handlebar switch 1
CHAS
NOTE: Remove the left handlebar switch from the meter assembly cover.
_
10.Remove: union bolt 1 copper washers 2 brake hose 3 brake lever 4 NOTE: To collect any remaining brake fluid, place a container under the master cylinder and the end of the brake hose.
_
6 - 25
FRONT BRAKE
CHAS
14.Remove: brake master cylinder reservoir cap 1 brake master cylinder reservoir diaphragm holder 2 brake master cylinder reservoir diaphragm 3 plate 4
EAS00590
CHECKING THE FRONT BRAKE MASTER CYLINDER 1. Check: brake master cylinder 1 Damage/scratches/wear Replace. brake fluid delivery passages 2 (brake master cylinder body) Obstruction Blow out with compressed air. 2. Check: brake master cylinder kit Damage/scratches/wear Replace.
3. Check: brake master cylinder reservoir 1 Cracks/damage Replace. brake master cylinder reservoir diaphragm 2 Damage/wear Replace.
6 - 26
FRONT BRAKE
CHAS
EAS00598
ASSEMBLING AND INSTALLING THE FRONT BRAKE MASTER CYLINDER For assembly and installation, reverse the disassembly and removal procedure. WARNING
_
Before installation, all internal brake components should be cleaned and lubricated with clean or new brake fluid. Never use solvents on internal brake components.
Recommended brake fluid DOT 4 NOTE: If DOT 4 brake fluid is not available, DOT 3 brake fluid can be used.
_
R.
2.
Install: brake fluid baffle plate 1 brake master cylinder reservoir diaphragm brake master cylinder reservoir diaphragm holder brake master cylinder reservoir cap
NOTE: Install the brake fluid baffle plate in the direction shown.
_
6 - 27
FRONT BRAKE
3.
CHAS
Install: brake master cylinder 1 brake master cylinder bracket brake master cylinder bracket upper bolt
11 Nm (1.1 m kg, 8.0 ft lb)
T.
brake master cylinder bracket lower bolt (temporarily) NOTE: Install the brake master cylinder bracket with the UP mark facing up. Install the brake master cylinder within 33.5 from the horizontal line shown in illustration. Install the brake master cylinder bracket as shown. First, tighten the upper bolt, then the lower bolt.
_
R.
4.
_
Install: brake lever 1 copper washers 2 New brake hose 3 union bolt 4 26 Nm (2.6 m kg, 19 ft lb)
T.
R.
WARNING Proper brake hose routing is essential to insure safe motorcycle operation. Refer to CABLE ROUTING in chapter 2. NOTE: When install the brake hose onto the brake master cylinder, make sure the brake pipe a touches the projection b as shown. Turn the handlebar to the left and right to make sure the brake hose does not touch other parts (e.g., wire harness, cables, leads). Correct if necessary.
_
5. Fill: brake master cylinder reservoir (with the specified amount of the recommended brake fluid) Recommended brake fluid DOT 4
6 - 28
FRONT BRAKE
WARNING
_
CHAS
Use only the designated brake fluid. Other brake fluids may cause the rubber seals to deteriorate, causing leakage and poor brake performance. Refill with the same type of brake fluid that is already in the system. Mixing brake fluids may result in a harmful chemical reaction, leading to poor brake performance. When refilling, be careful that water does not enter the brake master cylinder reservoir. Water will significantly lower the boiling point of the brake fluid and could cause vapor lock. CAUTION:
_
Brake fluid may damage painted surfaces and plastic parts. Therefore, always clean up any spilt brake fluid immediately. NOTE: If DOT 4 brake fluid is not available, DOT 3 brake fluid can be used.
_
6. Bleed: brake system Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM in chapter 3. 7. Check: brake fluid level Below the minimum level mark a Add the recommended brake fluid to the proper level. Refer to CHECKING THE BRAKE FLUID LEVEL in chapter 3. 8. Check: brake lever operation Soft or spongy feeling Bleed the brake system. Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM in chapter 3.
6 - 29
FRONT BRAKE
CHAS
9. Install: meter assembly cover 1 left handlebar switch bracket NOTE: When installing the meter assembly cover, make sure that the gap between the brake master cylinder bracket 2 and the meter assembly cover is uniform. If the gap is not uniform, loosen the bolt in the hole a in the meter assembly cover and adjust the position of the brake master cylinder bracket.
_
10.Connect: right handlebar switch coupler 1 left handlebar switch coupler 2 meter assembly coupler 3 Refer to CABLE ROUTING in chapter 2. 11.Install: speedometer cable 4 Refer to CABLE ROUTING in chapter 2. 12.Tighten: rearview mirror nuts (left and right)
32 Nm (3.2 m kg, 23 ft lb)
T.
R.
T.
R. R.
6 - 30
FRONT FORK
EASF0054
CHAS
FRONT FORK
1 Front fork cap bolt 2 O-ring 3 Fork spring 4 Damper rod 5 Rebound spring 6 Inner tube 7 Dust seal 8 Oil seal clip 9 Oil seal 0 Outer tube A Front fender
6 - 31
FRONT FORK
EAS00651
CHAS
REMOVING THE FRONT FORK LEGS The following procedure applies to both of the front fork legs. 1. Stand the motorcycle on a level surface. WARNING
_
Securely support the motorcycle so that there is no danger of it falling over. NOTE: Place the motorcycle on a suitable stand so that the front wheel is elevated.
_
2. Remove: front cowling Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3. 3. Remove: front wheel Refer to FRONT WHEEL AND BRAKE DISC. 4. Remove: brake hose holder brake caliper front fender Refer to FRONT BRAKE.
5. Remove: lower bracket upper pinch bolt 1 front fork cap bolt 2 (with a 10-mm hexagonal wrench) 6. Loosen: lower bracket lower pinch bolt 3 WARNING
_
Before removing the lower bracket lower pinch bolts, support the front fork leg. 7. Remove: front fork leg 4
6 - 32
FRONT FORK
EAS00655
CHAS
DISASSEMBLING THE FRONT FORK LEGS The following procedure applies to both of the front fork legs. 1. Remove: fork spring 2. Drain: fork oil NOTE: Stroke the inner tube 1 several times while draining the fork oil.
_
3. Remove: dust seal 1 oil seal clip 2 (with a flat-head screwdriver) CAUTION:
_
4. Remove: damper rod assembly bolt 1 copper washer NOTE: While holding the damper rod assembly with the hexagon socket wrench (10 mm) 2 and the T-handle 3, loosen the damper rod assembly bolt 1.
_
T-handle 90890-01326 5.
_
NOTE: Pull out the inner tube and damper rod together. 6. Remove: oil seal 1 CAUTION:
_
6 - 33
FRONT FORK
EAS00657
CHAS
CHECKING THE FRONT FORK LEGS The following procedure applies to both of the front fork legs. 1. Check: inner tube 1 outer tube 2 Bends/damage/scratches Replace. WARNING
_
Do not attempt to straighten a bent inner tube as this may dangerously weaken it.
2. Measure: fork spring free length a Out of specification Replace. Fork spring free length 266.7 mm (10.50 in) <Limit>: 261.4 mm (10.29 in)
1 2
3. Check: damper rod 1 Damage/wear Replace. Obstruction Blow out all of the oil passages with compressed air. rebound spring 2 Wear/cracks Replace. CAUTION:
_
The front fork leg has a built-in damper adjusting rod and a very sophisticated internal construction, which are particularly sensitive to foreign material. When disassembling and assembling the front fork leg, do not allow any foreign material to enter the front fork.
6 - 34
FRONT FORK
EAS00659
CHAS
ASSEMBLING THE FRONT FORK LEGS The following procedure applies to both of the front fork legs. WARNING
_
Make sure the oil levels in both front fork legs are equal. Uneven oil levels can result in poor handling and a loss of stability. NOTE: When assembling the front fork leg, be sure to replace the following parts: - oil seal - dust seal Before assembling the front fork leg, make sure all of the components are clean.
_
1.
_
CAUTION: Allow the damper rod assembly to slide slowly down the inner tube 2 until it protrudes from the bottom of the inner tube. Be careful not to damage the inner tube. 2. Lubricate: inner tubes outer surface Recommended lubricant Fork oil 10 W or equivalent
6 - 35
FRONT FORK
CHAS
LT
LT
1 New
NOTE: While holding the damper rod assembly with the hexagon socket wrench (10 mm) 2 and T-handle 3, tighten the damper rod assembly bolt.
_
T-handle 90890-01326
4. Install: oil seal 1 New (with the fork seal driver attachment 2 and fork seal driver weight 3) Fork seal driver weight 90890-01184 Fork seal driver attachment 90890-01186 CAUTION:
_
Make sure the numbered side of the oil seal faces up. NOTE: Before installing the oil seal, lubricate its lips with lithium-soap-based grease. Lubricate the outer surface of the inner tube with fork oil. Before installing the oil seal, cover the top of the front fork leg with a plastic bag 4 to protect the oil seal during installation.
_
R.
6 - 36
FRONT FORK
5. Install: oil seal clip 1 New
CHAS
NOTE: Adjust the oil seal clip so that it fits into the outer tubes groove.
_
6. Install: dust seal 1 New (with the fork seal driver weight 2) Fork seal driver weight 90890-01184
7. Fill: front fork leg (with the specified amount of the recommended fork oil) Quantity (each front fork leg) 57 cm3 (2.01 Imp oz, 1.93 US oz) Recommended oil Fork oil 10 W or equivalent Front fork leg oil level a (from the top of the inner tube, with the inner tube fully compressed and without the fork spring) 88 mm (3.46 in) NOTE: While filling the front fork leg, keep it upright. After filling, slowly pump the front fork leg up and down to distribute the fork oil.
_
8. Install: fork spring 1 NOTE: Install the fork spring with the smaller pitch facing up.
_
6 - 37
FRONT FORK
EAS00663
CHAS
INSTALLING THE FRONT FORK LEGS The following procedure applies to both of the front fork legs. For installation, reverse the removal procedure. 1. Install: front fork leg 1 lower bracket lower pinch bolt 2 O-ring New cap bolt 3 lower bracket upper pinch bolt 4 NOTE: Install the front fork leg with the groove a in the inner tube aligned with the hole b for the lower bracket upper pinch bolt.
_
cap bolt 20 Nm (2.0 m kg, 14 ft lb) lower bracket upper pinch bolt
T. T.
T.
R. R. R.
6 - 38
HANDLEBAR
EASF0055
CHAS
HANDLEBAR
1 Rearview mirror 2 Throttle grip 3 Throttle cable spring 4 Right handlebar switch 5 Handlebar 6 Left handlebar switch 7 Handlebar grip 8 Rear brake lever 9 Rear brake cable 0 Starter cable A Throttle cable
6 - 39
HANDLEBAR
EAS00666
CHAS
Securely support the motorcycle so that there is no danger of it falling over. 2. Remove: leg shield Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3. 3. Remove: headlight assembly Refer to REMOVING THE HEADLIGHT ASSEMBLY in chapter 3. 4. Remove: brake master cylinder assembly Refer to FRONT BRAKE.
6.
Remove: throttle cable 1 throttle grip 2 throttle cable housing (front side) 3
7. Remove: handlebar grip 1 NOTE: Blow compressed air between the handlebar and the handlebar grip, and gradually push the grip off the handlebar.
_
6 - 40
HANDLEBAR
8. 9.
CHAS
Disconnect: rear brake light switch connectors 1 Remove: rear brake cable 2 rear brake lever assembly 3
10.Remove: starter lever screw 1 washer starter lever 2 starter cable 3 washer spring washer
11.Remove: front brake hose wire harness speedometer cable throttle cable rear brake cable starter cable NOTE: Remove the front brake hose from the holder, and then remove the speedometer cable, wire harness, throttle cable, rear brake cable, and starter cable from the guide. Unhook the plastic loop 1 attached to the wire harness from the projection on the handlebar, and then remove the wire harness.
_
6 - 41
HANDLEBAR
EAS00668
CHAS
Do not attempt to straighten a bent handlebar as this may dangerously weaken it.
EAS00673
INSTALLING THE HANDLEBAR For installation, reverse the removal procedure. 1. Stand the motorcycle on a level surface. WARNING
_
Securely support the motorcycle so that there is no danger of it falling over. 2. Install: handlebar 1 NOTE: Align the pipe a on the handlebar with the slit b on the lower bracket.
_
R.
4.
Install: starter cable rear brake cable throttle cable speedometer cable wire harness front brake hose Refer to CABLE ROUTING in chapter 2.
NOTE: Hook the plastic loop 1 attached to the wire harness onto the projection on the handlebar after installing the wire harness.
_
6 - 42
HANDLEBAR
5.
_
CHAS
Install: spring washer 1 washer starter cable starter lever washer screw 7 Nm (0.7 m kg, 5.1 ft lb)
T.
NOTE: Install the spring washer in the direction shown. 6. Install: rear brake lever assembly 1
7 Nm (0.7 m kg, 5.1 ft lb)
rear brake cable NOTE: Install the rear brake lever within 33.5 from the horizontal line shown in the illustration. After installing the rear brake lever assembly, make sure that the clearance a between the center of the hole b in the handlebar and the rear brake lever assembly 1 is 10.3 mm (0.41 in).
_
R.
T.
R.
a. Apply a thin coat of rubber adhesive onto the left end of the handlebar. b. Slide the handlebar grip over the left end of the handlebar. c. Wipe off any excess rubber adhesive with a clean rag. WARNING
_
Do not touch the handlebar grip until the rubber adhesive has fully dried.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
6 - 43
HANDLEBAR
8.
_
CHAS
Install: throttle cable 1 throttle grip 2 throttle cable housing (front side) 3
NOTE: Lubricate the inside of the throttle grip with a thin coat of lithium-soap-based grease and install it onto the handlebar. Align the projection a on the throttle cable housing (front side) with the hole b on the handlebar.
the
throttle
grip
operates
10.Adjust: throttle cable free play Refer to ADJUSTING THE THROTTLE CABLE FREE PLAY in chapter 3. Throttle cable free play (at the flange of the throttle grip) 3 ~ 7 mm (0.12 ~ 0.28 in) 11.Adjust: brake lever free play Refer to ADJUSTING THE REAR BRAKE in chapter 3. Brake lever free play (lever end) 10 ~ 20 mm (0.39 ~ 0.79 in)
6 - 44
STEERING HEAD
EASF0057
CHAS
STEERING HEAD
1 Upper ring nut 2 Lower ring nut 3 Ball race cover 4 Bearing inner race 5 Upper bearing 6 Bearing outer race 7 Lower bearing 8 Lower bracket 9 Brake hose holder bracket 0 Speedometer cable guide
6 - 45
STEERING HEAD
EAS00679
CHAS
REMOVING THE LOWER BRACKET 1. Stand the motorcycle on a level surface. WARNING
_
Securely support the motorcycle so that there is no danger of it falling over. 2. Remove: leg shield Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3. 3. Remove: front fork Refer to FRONT FORK. 4. Remove: handlebar Refer to HANDLEBAR.
6.
_
NOTE: Hold the lower ring nut with the ring nut wrench 3, and then remove the upper ring nut with the steering nut wrench 4.
6 - 46
STEERING HEAD
EAS00681
CHAS
CHECKING THE STEERING HEAD 1. Clean: bearings bearing races Recommended cleaning solvent Kerosene
a. Remove the bearing races from the steering head pipe with a long rod 1 and hammer. b. Remove the bearing race from the lower bracket with a floor chisel 2 and hammer. c. Install the new bearing races. CAUTION:
_
If the bearing race is not installed properly, the steering head pipe could be damaged. NOTE: Always replace the bearings and bearing races as a set.
_
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
4. Check: lower bracket 1 (along with the steering stem) Bends/cracks/damage Replace.
6 - 47
STEERING HEAD
EAS00683
CHAS
INSTALLING THE STEERING HEAD For installation, reverse the removal procedure. 1. Lubricate: upper bearing lower bearing bearing races Recommended lubricant Lithium-soap-based grease 2. Install: upper bearing 1 lower bearing 2 NOTE: Install the upper and lower bearings with the projection a on each bearing facing up.
_
3. Install: lower ring nut upper ring nut Refer to CHECKING AND ADJUSTING THE STEERING HEAD in chapter 3. 4. Install: speedometer cable guide
7 Nm (0.7 m kg, 5.1 ft lb) 7 Nm (0.7 m kg, 5.1 ft lb)
T.
R. R.
6 - 48
CHAS
6 - 49
CHAS
REMOVING THE REAR SHOCK ABSORBER ASSEMBLY 1. Stand the motorcycle on a level surface. WARNING
_
Securely support the motorcycle so that there is no danger of it falling over. NOTE: Place the motorcycle on a suitable stand so that the rear wheel is elevated.
_
2. Remove: footboard Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3. 3. Remove: storage box fuel tank Refer to FUEL TANK in chapter 5. 4. Remove: V-belt case cover Refer to KICKSTARTER in chapter 4.
5.
Remove: rear shock absorber bolt 1 rear shock absorber nut 2 washer rear shock absorber assembly 3 washer
6 - 50
CHAS
CHECKING THE REAR SHOCK ABSORBER ASSEMBLY 1. Check: rear shock absorber rod Bends/damage Replace the rear shock absorber assembly. rear shock absorber Oil leaks Replace the rear shock absorber assembly. spring Damage/wear Replace the rear shock absorber assembly. bushings Damage/wear Replace. bolts Bends/damage/wear Replace.
CHECKING THE CRANKCASE (LEFT) 1. Check: bushing (rear shock absorber assembly) 1 Damage/wear Replace.
EAS00697
INSTALLING THE REAR SHOCK ABSORBER ASSEMBLY For installation, reverse the removal procedure. 1. Install: washer rear shock absorber assembly washer rear shock absorber assembly nut
32 Nm (3.2 m kg, 23 ft lb) 16 Nm (1.6 m kg, 11 ft lb)
T.
R. R.
6 - 51
ELEC
CHAPTER 7 ELECTRICAL SYSTEM
ELECTRICAL COMPONENTS........................................................................ 7-1 CHECKING SWITCH CONTINUITY ................................................................7-3 CHECKING THE SWITCHES ..........................................................................7-5 CHECKING THE BULBS AND BULB SOCKETS .......................................... 7-7 TYPES OF BULBS .................................................................................... 7-7 CHECKING THE CONDITION OF THE BULBS ....................................... 7-8 CHECKING THE CONDITION OF THE BULB SOCKETS .......................7-9 IGNITION SYSTEM ....................................................................................... 7-10 CIRCUIT DIAGRAM ................................................................................ 7-10 TROUBLESHOOTING ............................................................................7-11 ELECTRIC STARTING SYSTEM .................................................................. 7-15 CIRCUIT DIAGRAM ................................................................................ 7-15 STARTING CIRCUIT CUT-OFF SYSTEM OPERATION ........................ 7-16 TROUBLESHOOTING ............................................................................7-17 STARTER MOTOR ........................................................................................ 7-20 REMOVING THE STARTER MOTOR.....................................................7-21 DISASSEMBLING THE STARTER MOTOR...........................................7-21 CHECKING THE STARTER MOTOR .....................................................7-22 ASSEMBLING THE STARTER MOTOR................................................. 7-24 INSTALLING THE STARTER MOTOR ...................................................7-25 CHARGING SYSTEM ....................................................................................7-26 CIRCUIT DIAGRAM ................................................................................ 7-26 TROUBLESHOOTING ............................................................................7-27 LIGHTING SYSTEM ......................................................................................7-29 CIRCUIT DIAGRAM ................................................................................ 7-29 TROUBLESHOOTING ............................................................................7-30 CHECKING THE LIGHTING SYSTEM....................................................7-32 SIGNALING SYSTEM ...................................................................................7-34 CIRCUIT DIAGRAM ................................................................................ 7-34 TROUBLESHOOTING ............................................................................7-35 CHECKING THE SIGNALING SYSTEM ................................................. 7-36
ELEC
ELECTRICAL COMPONENTS
EAS00729
ELEC
ELECTRICAL SYSTEM
ELECTRICAL COMPONENTS
1 Fuse 2 Starter relay 3 Fuel sender 4 C.D.I. unit 5 Rectifier/regulator 6 Ignition coil 7 Horn 8 Turn signal relay
7-1
ELECTRICAL COMPONENTS
1 Main switch 2 Fuse 3 Positive battery lead 4 Battery 5 Negative battery lead 6 Wire harness
ELEC
7-2
ELEC
Never insert the tester probes into the coupler terminal slots 1. Always insert the probes from the opposite end of the coupler, taking care not to loosen or damage the leads.
Pocket tester 90980-03112 NOTE: Before checking for continuity, set the pocket tester to 0 and to the 1 range. When checking for continuity, switch back and forth between the switch positions a few times.
_
b
Br R OFF ON
Br R
The terminal connections for switches (e.g., main switch, engine stop switch) are shown in an illustration similar to the one on the left. The switch positions a are shown in the far left column and the switch lead colors b are shown in the top row in the switch illustration. NOTE: indicates a continuity of electricity between switch terminals (i.e., a closed circuit at the respective switch position).
_
The example illustration on the left shows that: There is continuity between red and brown when the switch is set to ON.
7-3
ELEC
7-4
ELEC
7-5
ELEC
7-6
ELEC
TYPES OF BULBS The bulbs used on this motorcycle are shown in the illustration on the left. Bulbs a and b are used for the headlights and usually use a bulb holder that must be detached before removing the bulb. The majority of these types of bulbs can be removed from their respective socket by turning them counterclockwise. Bulbs c is used for turn signal and tail/ brake lights and can be removed from the socket by pushing and turning the bulb counterclockwise. Bulbs d and e are used for meter and indicator lights and can be removed from their respective socket by carefully pulling them out.
7-7
ELEC
CHECKING THE CONDITION OF THE BULBS The following procedure applies to all of the bulbs. 1. Remove: bulb WARNING
_
Since the headlight bulb gets extremely hot, keep flammable products and your hands away from the bulb until it has cooled down. CAUTION:
_
Be sure to hold the socket firmly when removing the bulb. Never pull the lead, otherwise it may be pulled out of the terminal in the coupler. Avoid touching the glass part of the headlight bulb to keep it free from oil, otherwise the transparency of the glass, the life of the bulb, and the luminous flux will be adversely affected. If the headlight bulb gets soiled, thoroughly clean it with a cloth moistened with alcohol or lacquer thinner. 2. Check: bulb (for continuity) (with the pocket tester) No continuity Replace. Pocket tester 90890-03112 NOTE: Before checking for continuity, set the pocket tester to 0 and to the 1 range.
_
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Connect the positive tester probe to terminal 1 and the negative tester probe to terminal 2, and check the continuity. b. Connect the positive tester probe to terminal 1 and the negative tester probe to terminal 3, and check the continuity. c. If either of the readings indicate no continuity, replace the bulb.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
7-8
ELEC
CHECKING THE CONDITION OF THE BULB SOCKETS The following procedure applies to all of the bulb sockets. 1. Check: bulb socket (for continuity) (with the pocket tester) No continuity Replace. Pocket tester 90890-03112 NOTE: Check each bulb socket for continuity in the same manner as described in the bulb section; however, note the following.
_
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Install a good bulb into the bulb socket. b. Connect the pocket tester probes to the respective leads of the bulb socket. c. Check the bulb socket for continuity. If any of the readings indicate no continuity, replace the bulb socket.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
7-9
1
W R Y B Br B O W/R W/L
OFF
EAS00734
ON
R Br
R Br
(BLACK)
Br R R W/R B W/R
W Y/R
6
Y W Y/R B W Y/R B
7 8
O O
W/L W/L
9 0
CIRCUIT DIAGRAM
Br
IGNITION SYSTEM
2
Gy R R Gy
R Gy
R/W
L/W
Gy L/W
5
R/W L/W R/W L/W
R/W
R/W
A
L/W B B
Y/R
D
Br G/Y
R L/W
R Gy L/W
3 B
L/W Y/R B L Gy B L/B Br Y/R L/W L/B B G/Y
4 C
(BLACK)
(BLACK)
7 - 10
Br
G
Br/W Br
F
Br/W
Br
S
P Br L/B
Br
U V I
Dg P Br/W B Ch L/B P Dg B Br/W L/B Ch
W J
H
P
Br Dg Ch B G
Br Ch Dg G B
T
B Y
(RED)
(RED)
IGNITION SYSTEM
G/Y G Ch Dg
Ch
Dg
YY
G Ch Dg Ch Dg L G/Y
1 Main switch 2 Fuse 3 Battery 7 A.C. magneto 8 C.D.I. unit 9 Ignition coil 0 Spark plug
R
X P
Ch B
ELEC
G B
G B
Q
Dg B
L MN O
B L Y Ch Dg B B Ch B B Dg B B L B G/Y Dg Ch
(BLACK) (BLACK)
IGNITION SYSTEM
EAS00736 EAS00738
ELEC
TROUBLESHOOTING The ignition system fails to operate (no spark or intermittent spark). Check: 1. fuse 2. battery 3. spark plug 4. ignition spark gap 5. spark plug cap resistance 6. ignition coil resistance 7. pickup coil resistance 8. main switch 9. wiring connections (of the entire ignition system) NOTE: Before troubleshooting, remove the following part(s): 1. seat 2. center cover 3. rear panel 4. right side cover 5. headlight assembly Troubleshoot with the following special tool(s).
_
1. Fuse Check the fuse for continuity. Refer to CHECKING THE FUSE in chapter 3. Is the fuse OK? YES NO Replace the fuse.
EAS00739
2. Battery Check the condition of the battery. Refer to CHECKING AND CHARGING THE BATTERY in chapter 3. Minimum open-circuit voltage 12.8 V or more at 20 C (68 F) Is the battery OK? YES NO Refill battery fluid. Clean the battery terminals. Recharge or replace the battery.
EAS00740
3. Spark plug Check the condition of the spark plug. Check the spark plug type. Measure the spark plug gap. Refer to CHECKING THE SPARK PLUG in chapter 3. Standard spark plug C7HSA(NGK) Spark plug gap 0.6 ~ 0.7 mm (0.024 ~ 0.028 in) Is the spark plug in good condition, is it of the correct type, and is its gap within specification? YES NO Re-gap or replace the spark plug.
7 - 11
IGNITION SYSTEM
EAS00742 EAS00744
ELEC
4. Ignition spark gap Disconnect the spark plug cap from the spark plug. Connect the ignition checker 1 as shown.
2 Spark plug cap
5. Spark plug cap resistance Remove the spark plug cap from the spark plug lead. Connect the pocket tester ( 1k) to the spark plug cap as shown. Measure the spark plug cap resistance.
Set the main switch to ON. Measure the ignition spark gap a. Crank the engine by pushing the starter switch and gradually increase the spark gap until a misfire occurs.
1k
Spark plug cap resistance 5 k at 20 C (68 F) Is the spark plug cap OK? Minimum ignition spark gap 6 mm (0.24 in) Is there a spark and is the spark gap within specification? NO YES The ignition system is OK. YES Replace the plug cap. NO spark
7 - 12
IGNITION SYSTEM
EAS00746 EAS00748
ELEC
6. Ignition coil resistance Disconnect the ignition coil connector from the ignition coil terminal. Connect the pocket tester ( 1) to the ignition coil as shown. Positive tester probe terminal 1 Negative tester probe ignition coil base 2
7. Pickup coil resistance Disconnect the A.C. magneto coupler from the wire harness. Connect the pocket tester ( 100) to the pickup coil terminal as shown. Positive tester probe white/blue 1 Negative tester probe white/red 2
2
B Y/R W W/R W/L
1
2
Measure the primary coil resistance. Primary coil resistance 0.32 ~ 0.48 at 20 C (68 F) Connect the pocket tester ( 1k) to the ignition coil as shown. Negative tester probe terminal 1 Positive tester probe spark plug lead 2 Measure the pickup coil resistance. Pickup coil resistance 248 ~ 372 at 20 C (68 F) Is the pickup coil OK? YES NO Replace the pickup coil/stator assembly.
EAS00749
8. Main switch
1 2
Measure the secondary coil resistance. Secondary coil resistance 5.68 ~ 8.52 k at 20 C (68 F) Is the ignition coil OK? YES NO Replace the ignition coil.
Check the main switch for continuity. Refer to CHECKING THE SWITCHES. Is the main switch OK? YES Replace switch. NO the main
7 - 13
IGNITION SYSTEM
EAS00754
ELEC
9. Wiring Check the entire ignition systems wiring. Refer to CIRCUIT DIAGRAM. Is the ignition systems wiring properly connected and without defects? YES Replace the C.D.I. unit. NO Properly connect or repair the ignition systems wiring.
7 - 14
1
W R Y B Br B O W/R W/L
OFF
EAS00755
ON
R Br
R Br
(BLACK)
Br R R W/R B W/R
W Y/R
6
Y W Y/R B W Y/R B
7 8
O O
W/L W/L
9 0
CIRCUIT DIAGRAM
Br
2
Gy R R Gy
R Gy
R/W
L/W
Gy L/W
5
R/W L/W R/W L/W
R/W
R/W
A
L/W B B
Y/R
D
Br G/Y
R L/W
R Gy L/W
3 B
L/W Y/R B L Gy B L/B Br Y/R L/W L/B B G/Y
4 C
(BLACK)
(BLACK)
7 - 15
Br
G
Br/W Br
F
Br/W
Br
S
P Br L/B
Br
U V I
Dg P Br/W B Ch L/B P Dg B Br/W L/B Ch
W J
H
P
Br Dg Ch B G
Br Ch Dg G B
T
B Y
(RED)
(RED)
G/Y G Ch Dg
Ch
Dg
YY
G Ch Dg Ch Dg L G/Y
X P R
Ch B Dg B
ELEC
G B
G B
L MN O
B L Y Ch Dg B B Ch B B Dg B B L B G/Y Dg Ch
(BLACK) (BLACK)
1 Main switch 2 Fuse 3 Battery 4 Starter motor 5 Starter relay C Start switch D Front brake light switch E Rear brake light switch
ELEC
M
7 1
STARTING CIRCUIT CUT-OFF SYSTEM OPERATION If the main switch is set to ON (switch is closed), the starter motor can only operate if at least one of the following conditions is met: The front brake lever is pulled to the handlebar (the front brake light switch is closed). The rear brake lever is pulled to the handlebar (the rear brake light switch is closed).
1 Battery 2 Fuse 3 Main switch 4 Front brake light switch 5 Rear brake light switch 6 Start switch 7 Starter relay 8 Starter motor
7 - 16
ELEC
TROUBLESHOOTING The starter motor fails to turn. Check: 1. fuse 2. battery 3. starter motor 4. starter relay 5. main switch 6. start switch 7. front brake light switch 8. rear brake light switch 9. wiring connections (of the entire starting system) NOTE: Before troubleshooting, remove the following part(s): 1. seat 2. center cover 3. rear panel 4. side cover (left and right) 5. headlight assembly Troubleshoot with the following special tool(s).
_
1. Fuse Check the fuse for continuity. Refer to CHECKING THE FUSE in chapter 3. Is the fuse OK? YES NO Replace the fuse.
EAS00739
2. Battery Check the condition of the battery. Refer to CHECKING AND CHARGING THE BATTERY in chapter 3. Minimum open-circuit voltage 12.8 V or more at 20 C (68 F) Is the battery OK? YES NO Refill battery fluid. Clean the battery terminals. Recharge or replace the battery.
7 - 17
ELEC
3. Starter motor Connect the positive battery terminal 1 and starter motor lead 2 with a jumper lead 3.
4. Starter relay Disconnect the starter relay coupler from the starter relay. Connect the pocket tester ( 1) and battery (12 V) to the starter relay terminal as shown. Positive battery terminal blue/white 1 Negative battery terminal gray 2 Positive tester probe red 3 Negative tester probe red/white 4
3
R
WARNING
_
A wire that is used as a jumper lead must have at least the same capacity or more as that of the battery lead, otherwise the jumper lead may burn. This check is likely to produce sparks, therefore make sure nothing flammable is in the vicinity. Does the starter motor turn? YES NO Repair or replace the starter motor.
R Gy R/W
R/W L/W
1 4
Does the starter relay have continuity between red and red/white? YES NO Replace the starter relay.
7 - 18
ELEC
5. Main switch Check the main switch for continuity. Refer to CHECKING THE SWITCHES. Is the main switch OK? YES Replace switch.
EAS00764
9. Wiring Check the entire starting systems wiring. Refer to CIRCUIT DIAGRAM. Is the starting systems wiring properly connected and without defects? YES the main The starting system circuit is OK. Properly connect or repair the starting systems wiring. NO
NO
6. Start switch Check the start switch for continuity. Refer to CHECKING THE SWITCHES. Is the start switch OK? YES NO Replace the right handlebar switch. 7. Front brake light switch Check the front brake light switch for continuity. Refer to CHECKING THE SWITCHES. Is the front brake light switch OK? YES NO Replace the front brake light switch. 8. Rear brake light switch Check the rear brake light switch for continuity. Refer to CHECKING THE SWITCHES. Is the rear brake light switch OK? YES NO Replace the rear brake light switch.
7 - 19
STARTER MOTOR
EASF0767
ELEC
STARTER MOTOR
1 Starter motor rear cover 2 Starter motor yoke 3 Armature 4 Bush set 5 Starter motor front cover assembly
A B C D
BRUSH LENGTH LIMIT: 3.5 mm (0.14 in) COMMUTATOR WEAR LIMIT: 21 mm (0.83 in) MICA UNDER CUT: 1.5 mm (0.06 in) ARMATURE COIL RESISTANCE: 0.032 ~ 0.039 at 20 C (68 F)
7 - 20
STARTER MOTOR
ELEC
REMOVING THE STARTER MOTOR 1. Remove: footboard Refer to REMOVING THE FRONT COWLING AND LEG SHIELD in chapter 3. 2. Remove: battery Refer to CHECKING AND CHARGING THE BATTERY in chapter 3. 3. Remove: storage box Refer to FUEL TANK in chapter 5. air filter case Refer to AIR FILTER CASE in chapter 5.
4. 5.
2 3
DISASSEMBLING THE STARTER MOTOR 1. Remove: starter motor lead 1 starter motor front cover bolts (with washer and O-ring) 2. Remove: starter motor front cover 2 washer 3
7 - 21
STARTER MOTOR
4. Remove: armature 1
ELEC
EAS00770
CHECKING THE STARTER MOTOR 1. Check: commutator Dirt Clean with 600-grit sandpaper.
2. Measure: commutator diameter a Out of specification Replace the starter motor. Commutator wear limit 21 mm (0.83 in)
3. Measure: mica undercut a Out of specification Scrape the mica to the proper measurement with a hacksaw blade that has been grounded to fit the commutator. Mica undercut 1.5 mm (0.06 in) NOTE: The mica of the commutator must be undercut to ensure proper operation of the commutator.
_
7 - 22
STARTER MOTOR
ELEC
4. Measure: armature assembly resistances (commutator and insulation) Out of specification Replace the starter motor.
MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
a. Measure the armature assembly resistances with the pocket tester. Pocket tester 90890-03112 Armature coil Commutator resistance 1 0.032 ~ 0.039 at 20 C (68 F) Insulation resistance 2 Above 1 M at 20 C (68 F) b. If any resistance is out of specification, replace the starter motor.
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
5. Measure: brush length a Out of specification Replace the brushes as a set. Brush length wear limit 3.5 mm (0.14 in)
7 - 23
STARTER MOTOR
ELEC
6. Measure: brush spring force Out of specification Replace the brush springs as a set. Brush spring force 5.52 ~ 8.28 N (563 ~ 844 gf, 19.87 ~ 29.80 oz) 7. Check: gear teeth Damage/wear Replace the gear. 8. Check: bearing oil seal Damage/wear Replace the defective part(s).
EAS00772
b 1
Always use a new O-ring. 1. Install: washer (to armature) armature (in starter motor front cover 1) O-rings New (to starter motor yoke) starter motor yoke starter motor rear cover 2 NOTE: Align the match mark a on the starter motor yoke with the match marks b on the front and starter motor rear cover.
_
3 New
starter motor rear cover bolts (with O-ring and washer) O-ring 3 New (to starter motor front cover) starter motor lead
7 - 24
STARTER MOTOR
1
ELEC
INSTALLING THE STARTER MOTOR For installation, reverse the removal procedure. 1. Install: starter motor 1 negative battery lead 2 starter motor bolts
7 Nm (0.7 m kg, 5.1 ft lb)
T.
R.
7 - 25
EAS00773
1
W R Y B Br B O W/R W/L
OFF
ON
R Br
R Br
CIRCUIT DIAGRAM
(BLACK)
W Y/R
CHARGING SYSTEM
6
Y
7 8
W/L W/L
2
Gy R R Gy
R Gy
R/W
L/W
Gy L/W
7 - 26
5
R/W L/W R/W L/W
R/W
R/W
A
L/W
Y/R
R L/W
R Gy L/W
3 B C
Gy
CHARGING SYSTEM
ELEC
Br
Br/W Br
Br
CHARGING SYSTEM
EAS00774 EAS00738
ELEC
TROUBLESHOOTING The battery is not being charged. Check: 1. fuse 2. battery 3. charging voltage 4. charging coil resistance 5. wiring connections (of the entire charging system) NOTE: Before troubleshooting, remove the following part(s): 1. seat 2. center cover 3. rear panel 4. right side cover Troubleshoot with the following special tool(s).
_
1. Fuse Check the fuse for continuity. Refer to CHECKING THE FUSE in chapter 3. Is the fuse OK? YES NO Replace the fuse.
EAS00739
2. Battery Check the condition of the battery. Refer to CHECKING AND CHARGING THE BATTERY in chapter 3. Minimum open-circuit voltage 12.8 V or more at 20 C (68 F) Is the battery OK?
YES
NO Refill battery fluid. Clean the battery terminals. Recharge or replace the battery.
7 - 27
CHARGING SYSTEM
EAS00775 EAS00776
ELEC
3. Charging voltage Connect the engine tachometer to the spark plug lead. Connect the pocket tester (DC 20 V) to the battery as shown. Positive tester probe positive battery terminal 1 Negative tester probe negative battery terminal 2
4. Charging coil resistance Disconnect the A.C. magneto coupler from the wire harness. Connect the pocket tester ( 1) to the charging coil as shown. Positive tester probe white 1 Negative tester probe black 2
B Y/R W
W/R W/L
Measure the charging coil resistances. Start the engine and let it run at approximately 5,000 r/min. Measure the charging voltage. Charging voltage 14 V at 5,000 r/min NOTE: Make sure the battery is fully charged.
_
Charging coil resistance 0.32 ~ 0.48 at 20 C (68 F) Is the charging coil OK? YES NO Replace the pick up coil/stator coil assembly.
EAS00779
Is the charging voltage within specification? NO YES The charging circuit is OK.
5. Wiring Check the wiring connections of the entire charging system. Refer to CIRCUIT DIAGRAM. Is the charging systems wiring properly connected and without defects? YES Replace the rectifier/ regulator. NO Properly connect or repair the charging systems wiring.
7 - 28
1
W R Y B Br B O W/R W/L
EAS00780
OFF
ON
R Br
R Br
(BLACK)
Br R R W/R B W/R
W Y/R
6
Y W Y/R B W Y/R B
7 8
O O
W/L W/L
CIRCUIT DIAGRAM
Br
2
L/W
R Gy R/W
Gy L/W Gy R R Gy
LIGHTING SYSTEM
1 Main switch 2 Fuse 3 Battery 6 Rectifier/regulator 7 A.C. magneto B Light switch J Dimmer switch O Tail/brake light R Headlight U Meter light V High beam indicator light
5
R/W R/W L/W R/W L/W
R/W
A
L/W B B
Y/R
D
Br G/Y
R L/W
R Gy L/W
3 4 B
L/W Y/R B L Gy B L/B Br G /Y Y/R L/W L/B B
(BLACK)
(BLACK)
7 - 29
Br
G
Br/W Br
F
Br/W
Br
S
P Br L/B
Br
U V I J
Dg P Br/W B Ch L/B P Dg B Br/W L/B Ch
H
P
Br Dg Ch B G
Br Ch Dg G B
T
B Y G
(RED)
(RED)
G/Y Ch Dg
LIGHTING SYSTEM
Ch
Dg
YY
G Ch Dg Ch Dg L G/Y
X P R
Ch B Dg B
ELEC
G B
G B
L MN O
B L Y Ch Dg B B Ch B B Dg B B L B G/Y Dg Ch
(BLACK) (BLACK)
LIGHTING SYSTEM
EAS00781 EAS00738
ELEC
TROUBLESHOOTING Any of the following fail to light: headlight, high beam indicator light, taillight or meter light. Check: 1. fuse 2. battery 3. main switch 4. light switch 5. dimmer switch 6. lighting coil resistance 7. wiring connections (of the entire lighting system) NOTE: Before troubleshooting, remove the following part(s): 1. seat 2. center cover 3. rear panel 4. right side cover 5. headlight assembly Troubleshoot with the following special tool(s).
_
1. Fuse Check the fuse for continuity. Refer to CHECKING THE FUSE in chapter 3. Is the fuse OK? YES NO Replace the fuse.
EAS00739
2. Battery Check the condition of the battery. Refer to CHECKING AND CHARGING THE BATTERY in chapter 3. Minimum open-circuit voltage 12.8 V or more at 20 C (68 F) Is the battery OK? YES NO Refill battery fluid. Clean the battery terminals. Recharge or replace the battery.
EAS00749
3. Main switch Check the main switch for continuity. Refer to CHECKING THE SWITCHES. Is the main switch OK? YES Replace switch. NO the main
7 - 30
LIGHTING SYSTEM
EAS00783 EAS00776
ELEC
4. Light switch Check the light switch for continuity. Refer to CHECKING THE SWITCHES. Is the light switch OK? YES NO The light switch is faulty. Replace the right handlebar switch.
EAS00784
6. Lighting coil resistance Disconnect the A.C. magneto coupler from the wire harness. Connect the pocket tester ( 1) to the lighting coils as shown. Positive tester probe yellow/red 1 Negative tester probe black 2
5. Dimmer switch Check the dimmer switch for continuity. Refer to CHECKING THE SWITCHES. Is the dimmer switch OK? YES NO The dimmer switch is faulty. Replace the left handlebar switch.
B Y/R W W/R W/L
Measure the lighting coil resistances. Lighting coil resistance 0.24 ~ 0.36 at 20 C (68 F) Is the lighting coil OK? YES NO Replace the pickup coil/stator coil assembly.
EAS00787
7. Wiring Check the entire lighting systems wiring. Refer to CIRCUIT DIAGRAM. Is the lighting systems wiring properly connected and without defects? YES Check the condition of each of the lighting systems circuits. Refer to CHECKING THE LIGHTING SYSTEM. NO Properly connect or repair the lighting systems wiring.
7 - 31
LIGHTING SYSTEM
EAS00788
ELEC
CHECKING THE LIGHTING SYSTEM 1. The headlight and the high beam indicator light fail to come on. 1. Headlight bulb and socket Check the headlight bulb and socket for continuity. Refer to CHECKING THE BULBS AND BULB SOCKETS. Are the headlight bulb and socket OK? YES NO Replace the headlight bulb, socket or both. 2. Voltage Connect the pocket tester (AC 20 V) to the headlight connectors and high beam indicator light connector and coupler as shown. Headlight Positive tester probe green 1 or yellow 2 Negative tester probe black 3
When the dimmer switch is set to When the dimmer switch is set to
High beam indicator light Positive tester probe yellow 4 Negative tester probe black 5
AC20V
Br
Dg Ch B G
Set the main switch to ON. Start the engine. Set the light switch to . Set the dimmer switch to or . Measure the voltage (AC 12 V) of green 1 or yellow 2 on the headlight connector (wire harness side) and yellow 4 on the meter assembly connector. Is the voltage within specification? YES NO Replace the rectifier/ regulator.
7 - 32
LIGHTING SYSTEM
EAS00789 EAS00790
ELEC
2. The meter light fails to come on. 1. Meter light bulb and socket Check the meter light bulb and socket for continuity. Refer to CHECKING THE BULBS AND BULB SOCKETS. Are the meter light bulb and socket OK? YES NO Replace the meter light bulb, socket or both. 2. Voltage Connect the pocket tester (DC 20 V) to the meter light coupler (wire harness side) as shown. Positive tester probe brown 1 Negative tester probe black 2
3. The tail/brake light fails to come on. 1. Tail/brake light bulb and socket Check the tail/brake light bulb and socket for continuity. Refer to CHECKING THE BULBS AND BULB SOCKETS. Are the tail/brake light bulb and socket OK? YES NO Replace the tail/ brake light bulb, socket or both. 2. Voltage Connect the pocket tester (AC 20 V) to the tail/brake light coupler (wire harness side) as shown. Positive tester probe blue 1 Negative tester probe black 2
1
Br Ch Dg G B Br Dg Ch B G B L Y Ch Dg
1
L G/Y
2
B
Dg Ch
Set the main switch to ON. Set the light switch to . Measure the voltage (DC 12 V) of brown 1 on the meter light coupler (wire harness side). Is the voltage within specification? YES This circuit is OK. NO The wiring circuit from the main switch to the meter light coupler is faulty and must be repaired.
Set the main switch to ON. Start the engine. Set the light switch to . Measure the voltage (AC 12 V) of blue 1 on the tail/brake light coupler (wire harness side). Is the voltage within specification? YES This circuit is OK. NO Replace the rectifier/ regulator.
7 - 33
1
W R Y B Br B O W/R W/L
EAS00793
OFF
ON
R Br
R Br
(BLACK)
Br R R W/R B W/R
W Y/R
6
Y W Y/R B W Y/R B
7 8
O O
W/L W/L
CIRCUIT DIAGRAM
Br
2
L/W
R Gy R/W
Gy L/W Gy R R Gy
SIGNALING SYSTEM
1 Main switch 2 Fuse 3 Battery D Front brake light switch E Rear brake light switch F Turn signal relay G Horn I Horn switch K Turn signal switch M Rear turn signal light (left) N Rear turn signal light (right) O Tail/brake light P Front turn signal light (left) Q Front turn signal light (right) T Fuel gauge W Turn signal indicator light X Fuel sender
5
R/W R/W L/W R/W L/W
R/W
A
L/W B B
Y/R
D
Br G/Y
R L/W
R Gy L/W
3 4 B
L/W Y/R B L Gy B L/B Br G/Y Y/R L/W L/B B
(BLACK)
(BLACK)
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Br
G
Br/W Br
F
Br/W
Br
S
P Br L/B
Br
U V I
Dg P Br/W B Ch L/B P Dg B Br/W L/B Ch
W J
H
P
Br Dg Ch B G
Br Ch Dg G B
T
B Y G
(RED)
(RED)
G/Y Ch Dg
SIGNALING SYSTEM
Ch
Dg
YY
G Ch Dg Ch Dg L G/Y
X P R
Ch B Dg B
ELEC
G B
G B
L MN O
B L Y Ch Dg B B Ch B B Dg B B L B G /Y Dg Ch
(BLACK) (BLACK)
SIGNALING SYSTEM
EAS00794 EAS00738
ELEC
TROUBLESHOOTING Any of the following fail to light: turn signal light, brake light or an indicator light. The horn fails to sound. Check: 1. fuse 2. battery 3. main switch 4. wiring connections (of the entire signaling system) NOTE: Before troubleshooting, remove the following part(s): 1. seat 2. center cover 3. rear panel 4. right side cover 5. headlight assembly 6. front cowling Troubleshoot with the following special tool(s).
_
1. Fuse Check the fuse for continuity. Refer to CHECKING THE FUSE in chapter 3. Is the fuse OK? YES NO Replace the fuse.
EAS00739
2. Battery Check the condition of the battery. Refer to CHECKING AND CHARGING THE BATTERY in chapter 3. Minimum open-circuit voltage 12.8 V or more at 20 C (68 F) Is the battery OK? YES NO Refill battery fluid. Clean the battery terminals. Recharge or replace the battery.
EAS00749
3. Main switch Check the main switch for continuity. Refer to CHECKING THE SWITCHES. Is the main switch OK? YES Replace switch. NO the main
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SIGNALING SYSTEM
EAS00795 EAS00796
ELEC
4. Wiring Check the entire signal systems wiring. Refer to CIRCUIT DIAGRAM. Is the signaling systems wiring properly connected and without defects? YES Check the condition of each of the signaling systems circuits. Refer to CHECKING THE SIGNALING SYSTEM. NO Properly connect or repair the signaling systems wiring.
CHECKING THE SIGNALING SYSTEM 1. The horn fails to sound. 1. Horn switch Check the horn switch for continuity. Refer to CHECKING THE SWITCHES. Is the horn switch OK? YES NO The horn switch is faulty. Replace the left handlebar switch. 2. Voltage Connect the pocket tester (DC 20 V) to the horn connector at the horn terminal as shown. Positive tester probe brown 1 Negative tester probe ground
Br P
Set the main switch to ON. Push the horn switch. Measure the voltage (DC 12 V) of brown at the horn terminal. Is the voltage within specification? YES NO The wiring circuit from the main switch to the horn connector is faulty and must be repaired.
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SIGNALING SYSTEM
3. Horn Disconnect the pink connector at the horn terminal. Connect a jumper lead 1 to the horn terminal and ground the jumper lead. Set the main switch to ON. Does the horn sound?
Br
EAS00798
ELEC
2. The tail/brake light fails to come on. 1. Tail/brake light bulb and socket Check the tail/brake light bulb and socket for continuity. Refer to CHECKING THE BULBS AND BULB SOCKETS. Are the tail/brake light bulb and socket OK? YES NO Replace the tail/ brake light bulb, socket or both. 2. Brake light switches NO YES The horn is OK. Check the brake light switches for continuity. Refer to CHECKING THE SWITCHES. Is the brake light switch OK? YES NO Replace the brake light switch.
4. Voltage Connect the pocket tester (DC 20 V) to the horn connector at the pink terminal as shown. Positive tester probe pink 1 Negative tester probe ground
Br P
Set the main switch to ON. Measure the voltage (DC 12 V) of pink 1 at the horn terminal. Is the voltage within specification? YES Repair or replace the pink lead or ground lead. NO Replace the horn.
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SIGNALING SYSTEM
3. Voltage Connect the pocket tester (DC 20 V) to the tail/brake light coupler (wire harness side) as shown. Positive tester probe green/yellow 1 Negative tester probe black 2
EAS00799
ELEC
3. The turn signal light, turn signal indicator light or both fail to blink. 1. Turn signal indicator light bulb and socket Check the turn signal light bulb and socket for continuity. Refer to CHECKING THE BULBS AND BULB SOCKETS. Are the turn signal light bulb and socket OK? YES NO Replace the turn signal light bulb, socket or both.
1
B L Y Ch Dg L G/Y
2
B
Dg Ch
Set the main switch to ON. Pull in the brake levers. Measure the voltage (DC 12 V) of green/ yellow 1 on the tail/brake light coupler (wire harness side). Is the voltage within specification? YES This circuit is OK. NO The wiring circuit from the main switch to the tail/brake light coupler is faulty and must be repaired.
2. Turn signal switch Check the turn signal switch for continuity. Refer to CHECKING THE SWITCHES. Is the turn signal switch OK? YES NO The turn signal switch is faulty. Replace the left handlebar switch.
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SIGNALING SYSTEM
3. Voltage Connect the pocket tester (DC 20 V) to the turn signal relay coupler (wire harness side) as shown. Positive tester probe brown 1 Negative tester probe ground 4. Voltage
ELEC
Connect the pocket tester (DC 20 V) to the turn signal relay coupler (wire harness side) as shown. Positive tester probe brown/white 1 Negative tester probe ground
Br/W
Br/W Br
Br
Set the main switch to ON. Measure the voltage (DC 12 V) on brown 1 at the turn signal relay coupler (wire harness side). Is the voltage within specification? YES NO The wiring circuit from the main switch to the turn signal relay coupler is faulty and must be repaired.
Set the main switch to ON. Measure the voltage (DC 12 V) on brown/ white 1 at the turn signal relay coupler (wire harness side). Is the voltage within specification? YES NO The turn signal relay is faulty and must be replaced.
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SIGNALING SYSTEM
5. Voltage Connect the pocket tester (DC 20 V) to the turn signal light coupler (wire harness side) as shown. Rear turn signal light Front turn signal light Left turn signal light Positive tester probe chocolate 1 Negative tester probe ground Right turn signal light Positive tester probe dark green 2 Negative tester probe ground Turn signal indicator light Positive tester probe chocolate 3 Negative tester probe ground Positive tester probe dark green 4 Negative tester probe ground
ELEC
Set the main switch to ON. Set the turn signal switch to or . Measure the voltage (DC 12 V) of the chocolate 1 or dark green 2 at the turn signal light coupler (wire harness side) and chocolate 3 or dark green 4 at the turn signal indicator light coupler (wire harness side). Is the voltage within specification? YES This circuit is OK. NO The wiring circuit from the turn signal switch to the turn signal light coupler is faulty and must be repaired.
L Y
L G/Y
Ch Dg
Dg Ch
2 1
Ch B
1
Ch B
Dg B
Dg B
4
Br Ch Dg G B Br Dg Ch B G
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SIGNALING SYSTEM
EAS00804
ELEC
4. The fuel level gauge fails to operate. 1. Fuel sender Remove the fuel sender from the fuel tank. Connect the pocket tester to the fuel sender coupler (wire harness side) as shown. Positive tester probe green 1 Negative tester probe black 2
2. Voltage Connect the pocket tester (DC 20 V) to the meter light coupler (wire harness side) as shown. Positive tester probe brown 1 Negative tester probe green 2
E F
1
Br Dg Ch B G
1
Br Ch Dg G B
B G
Measure the fuel sender resistances. Fuel sender resistance (up position full ) ( 1) 4 ~ 10 at 20 C (68 F) Fuel sender resistance (down position empty ) ( 10) 90 ~ 100 at 20 C (68 F) Is the fuel sender OK? YES Replace sender. NO the fuel
2
Set the main switch to ON. Measure the voltage (DC 12 V) of brown 1 on the meter light coupler (wire harness side). Is the voltage within specification? YES NO Check the wiring connections of the entire signaling system.
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SIGNALING SYSTEM
3. Fuel level gauge Set the main switch to ON. Move the float up 1 or down 2. Check that the fuel level gauge needle moves to F or E. NOTE: Before reading the fuel level gauge, leave the float in one position (either up or down) for at least three minutes.
_
ELEC
2
Does the fuel level gauge needle move appropriately? YES NO Replace the meter assembly. 4. Wiring Check the entire signaling systems wiring.
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TRBL SHTG
CHAPTER 8 TROUBLESHOOTING
TROUBLESHOOTING.....................................................................................8-1 ELECTRICAL SYSTEM.............................................................................8-1 COMPRESSION SYSTEM........................................................................ 8-2 INTAKE AND EXHAUST SYSTEM ........................................................... 8-3
TRBL SHTG
TROUBLESHOOTING
EASF0062
TRBL SHTG
TROUBLESHOOTING
TROUBLESHOOTING
ELECTRICAL SYSTEM
8-1
TROUBLESHOOTING
COMPRESSION SYSTEM
TRBL SHTG
WEAR/SCRATCH/DAMAGE WEAR/STICK/BROKEN
DAMAGE
8-2
TROUBLESHOOTING
INTAKE AND EXHAUST SYSTEM
TRBL SHTG
8-3
R Br
R Br
W R
B Y
Br B O W/R W/L
(BLACK)
Br R R
W/L W/R
W/L W/R
8
Br B
O B
9 0
R Gy
R/W L/W
Gy L/W Gy R Gy R
5
R R/W R/W R R/W L/W R/W L/W Gy L/W L/W
A B
Y/R
D
B B Br G /Y
L/W
3
B
4
Gy B B
C
L/W Y/R B L B L/B Y/R L/W L/B B Br G/Y
(BLACK)
(BLACK)
Br
G S
Br P Br L/B
Br/W Br
F
Br/W
Br
U V
Br Dg Ch B G (RED) Br Ch Dg G B (RED)
W
Dg P Br/W B Ch L/B
H I
P Dg B Br/W L/B Ch
G/Y B Y G B Y Ch Dg G Ch Dg
1 Main switch 2 Fuse 3 Battery 4 Starter motor 5 Starter relay 6 Rectifier/regulator 7 A.C. magneto 8 C.D.I. unit 9 Ignition coil 0 Spark plug A Right handlebar switch B Light switch C Start switch D Front brake light switch E Rear brake light switch F Turn signal relay G Horn H Left handlebar switch I Horn switch J Dimmer switch K Turn signal switch L Tail/brake light assembly M Rear turn signal light (left) N Rear turn signal light (right) O Tail/brake light P Front turn signal light (left) Q Front turn signal light (right) R Headlight S Meter assembly T Fuel gauge U Meter light V High beam indicator light W Turn signal indicator light X Fuel sender
YY
G Ch Dg Ch Dg L G/Y
X
G B G B
P R
Ch B Ch B
Q
Dg B Dg B
L MN O
B L Y Ch Dg B L B G/Y Dg Ch
(BLACK) (BLACK)
B
COLOR CODE
B .............Black Br............Brown Ch...........Chocolate Dg...........Dark green G ............Green Gy...........Gray L .............Blue O ............ Orange P ............ Pink R ............ Red W ........... White Y ............ Yellow Br/W....... Brown/ White G/Y......... Green/Yellow L/B ..........Blue/Black L/ W ........Blue/ White R/W ........Red/ White W/L .........White/Blue W/R ........White/Red Y/R .........Yellow/Red