31 ZV 7615

HONDA BF25Al3OA
mmRinE Owner's Manual
@ 2001 Honda Motor Co., Ltd. -All Rights Reserved 2002

The engine exhaustfrom this
product contains chemicals
known to the State of California to
cause cancer, birth defects, or
other reproductive harm.
Keep this owner’s manual handy, so you can refer to it at any time. This owner’s
manual is considered a permanent part of the outboard motor and should remain with
the outboard motor if resold.
The information and specifications included in this publication were in effect at the
time of approval for printing. Honda Motor Co., Ltd. reserves the right, however, to
discontinue or change specifications or design at any time without notice and without
incurring any obligation whatever. No part of this publication may be reproduced
without written permission.
INTRODUCTION
Congratulations on your selection of We suggest you read the warranty
a Hondaoutboard motor. We are policy to fully understand its
certain you will be pleased with your coverage and your responsibilities of
purchase of one of the finest ownership. The warranty policy is a
outboard motors on the market. separate document that should have
been given to you by your dealer.
We want to help you get the best
results from your new outboard When your outboard motor needs
motor and to operate it safely. This scheduled maintenance, keep in mind
manual contains the information on that your Honda marine dealer is
how to do that; please read it specially trained in servicing Honda
carefully. outboard motors. Your Honda marine
dealer is dedicated to your
As you read this manual you will satisfaction and will be pleased to
find information preceded by a answer your questions and concerns.
symbol. That information 02001 Honda Motor Co., Ltd. All

is intended to help you avoid damage Rights Reserved
to your outboard motor, other
property, or the environment.
1
INTRODUCTION
A FEW WORDS ABOUT You will find important safety information in a variety of forms, including:
SAFETY
Safety Labels - on the outboard motor.
Your safety and the safety of others
are very important. And using this Safety Messages - preceded by a safety alert symbol A
and one of
outboard motor safely is an important three signal words, DANGER, WARNING, or CAUTION.
responsibility.
These signal words mean:
To help you make informed
decisions about safety, we have You WILL be KILLED or SERIOUSLY
provided operating procedures and HURT if you don’t follow instructions.
other information on labels and in
this manual. This information alerts You CAN be KILLED or SERIOUSLY
you to potential hazards that could HURT if you don’t follow instructions.
hurt you or others.
You CAN be HURTif you don’t follow
Of course, it is not practical or instructions.
possible to warn you about all the
hazards associated with operating or Safety Headings - such as IMPORTANT SAFETY INFORMATION.
maintaining an outboard motor. You
must use your own good judgment. Safety Section - such as OUTBOARD MOTOR SAFETY.
Instructions - how to use this outboard motor correctly and safely.
This entire book is filled with important safety information - please read it
carefully.
2
CONTENTS
OUTBOARD MOTOR SAFETY.................................... 7 GearshiftIThrottle Control Lever........................... 18

IMPORTANT SAFETY INFORMATION................. 7 Manual Choke Knob.............................................. 20
SAFETY LABEL LOCATIONS................................. 9 Common Controls ...................................................... 20
Engine Cover Latch............................................... 20
CONTROLS AND FEATURES ................................... 10 Transom Angle Adjusting Rod .............................. 20
CONTROL AND FEATURE Trim Tab................................................................. 21
IDENTIFICATION CODES ................................. 10 Steering Friction Bolt ............................................. 21
COMPONENT AND CONTROL LOCATIONS..... 11 Tilt Lever ................................................................ 22
CONTROLS ............................................................... I4 INSTRUMENTS ........................................................ 22
H Type ........................................................................ 14 Fuel Gauge ............................................................. 22
Engine Stop Switch and Switch Clip ..................... 14 INDICATORS............................................................ 22
Choke Knob ........................................................... 14 Oil Pressure Indicator ............................................. 22
Throttle Grip........................................................... 15 Overheating Indicator ............................................ 23
Throttle Friction Knob ........................................... 15 Cooling System Indicator ...................................... 23
Gearshift Lever ...................................................... 15 OTHER FEATURES ................................................. 24
Recoil Starter Grip ................................................. 16 Overrev Limiter ...................................................... 24
Electric Starter Button ............................................ 16 Anode ..................................................................... 24
R Type........................................................................ 16 Portable Fuel Tank................................................. 24
Ignition Switch ....................................................... 16 Fuel Cap Vent Knob .............................................. 25
Switch Clip and Emergency Stop Switch.............. 17 Fuel Priming Bulb.................................................. 25
Choke/Fast Idle Lever ............................................ 18
3
CONTENTS
INSTALLATION ........................................................... 26 STARTING THE ENGINE....................................... 36

POWER REQUIREMENTS...................................... 26 H Type .................................................................... 36
BOAT TRANSOM REQUIREMENTS .................... 26 R Type .................................................................... 39
INSTALLATION POSITION................................... 26 EMERGENCY STARTING...................................... 41
ATTACHMENT ........................................................ 27 STOPPING THE ENGINE ........................................ 44
TRANSOM ANGLE ADJUSTMENT ...................... 28 Emergency Engine Stopping................................. 44
BATTERY CONNECTIONS.................................... 28 Stopping
Normal Engine ........................................ 44
GEARSHIFTING AND
BEFORE OPERATION................................................. 31 THROTTLE OPERATION............................... 46
ARE YOU READY TO GETUNDER WAY? ...... 31 H Type.................................................................... 46
IS YOUR OUTBOARD MOTOR R Type.................................................................... 47
READY TO GO? ................................................. 31 STEERING ................................................................ 48
H Type.................................................................... 48
OPERATION ................................................................. 33 R Type.................................................................... 48
SAFE OPERATING PRECAUTIONS..................... 33 CRUISING ................................................................. 49
BREAK-IN PROCEDURE........................................ 33 SHALLOW WATER OPERATIONS ....................... 50
TRANSOM ANGLE ADJUSTMENT ...................... 34 MOORING, BEACHING, LAUNCHING................ 51
PORTABLE FUEL TANK........................................ 35
FUEL HOSE CONNECTIONS................................. 35
FUEL PRIMING........................................................ 36
4
CONTENTS
SERVICING YOUR OUTBOARD MOTOR............... 52 STORAGE ..................................................................... 73

THE IMPORTANCEOF MAINTENANCE ............ 52 STORAGE PREPARATION .................................... 73
MAINTENANCE SAFETY...................................... 53 Cleaning and Flushing ........................................... 73
TOOL KIT AND EMERGENCY STARTER Fuel ......................................................................... 75
ROPE ...................................................................... 54 Engine Oil .............................................................. 76
SCHEDULE
MAINTENANCE ................................ 55 STORAGE PRECAUTIONS .................................... 77
TRIM TAB ADJUSTMENT..................................... 57 REMOVAL FROM STORAGE................................ 77
ENGINE COVER REMOVAL AND
INSTALLATION................................................... 58 TRANSPORTING ......................................................... 78
Engine Oil Level Check............................................. 58 WITH OUTBOARD MOTOR INSTALLED
78
Engine Oil Change .....................................................
BOAT 59 ON ..............................................................
Engine Oil Recommendations ................................... 60 WITH OUTBOARD MOTOR REMOVED
Gear Oil Level Check................................................. 60 FROM BOAT ........................................................ 78
Gear Oil Change ......................................................... 61
Lubrication Points ...................................................... 63
Spark PlugService ..................................................... 65
REFUELING .............................................................. 67
FUEL RECOMMENDATIONS................................ 68
Fuel PumpFilter Inspection and Replacement .......... 68
Portable Fuel Tank andFilter Cleaning ..................... 70
Recoil Starter Rope Inspection .................................. 71
Anode Replacement................................................... 71
Propeller Replacement ............................................... 72
5
CONTENTS
TAKING CAREOF UNEXPECTED PROBLEMS..... 79 TECHNICAL AND CONSUMER INFORMATION ... 89

ELECTRICAL STARTER WILL NOT TECHNICAL INFORMATION................................ 89
OPERATE .............................................................. 79 Serial Number Locations ....................................... 89
ENGINE WILL NOT START ................................... 80 Carburetor Modificationfor High Altitude
HARD STARTING OR STALLS AFTER Operation ............................................................ 90
STARTING ............................................................ 82 Oxygenated Fuels ................................................... 91
ENGINE OVERHEATS............................................ 83 Emission Control System Information.................. 92
BATTERY WILL NOT CHARGE AND Star Label ............................................................... 94
ELECTRIC STARTER WILL NOT OPERATE .. 84 Specifications ......................................................... 96
OIL PRESSURE INDICATOR LIGHT GOESOFF CONSUMER INFORMATION .............................. 100
AND ENGINE SPEEDIS LIMITED.................... 85
OVERHEATING INDICATOR LIGHT COMES WIRING DIAGRAMS ................................................ 101
ON AND ENGINE SPEEDIS LIMITED ............. 86
SUBMERGED MOTOR........................................... 87 INDEX .......................................................................... 104
6
OUTBOARD MOTOR SAFETY
IMPORTANT SAFETY Operator Responsibility Attach the emergency stop switch
INFORMATION lanyard securely to the operator.
0 It is the operator’s responsibility to
Honda BF25A and BF30A outboard provide the necessary safeguards 0 Always wear a PFD (Personal
motors are designed for use with to protect people and property. Flotation Device) while on the
boats that have a suitable Know how to stop the engine boat.
manufacturer’s power quickly in case of emergency.
recommendation. Other uses can Understand the use of all controls. 0 Familiarize yourself with all laws
result in injury to the operator or and regulations relating to boating
damage to the outboard motor and 0 Stop the engine immediately if and the use of outboard motors.
other property. anyone falls overboard, and do not
run the engine while the boat is 0 Be sure that anyone who operates
Most accidents can be prevented if near anyone in the water. the outboard motor receives proper
you follow all instructions in this instruction.
manual and on the outboard motor. 0 Always stop the engine if you
The most common hazards are must leave the controls for any 0 Be sure the outboard motor is
discussed below, along with the best reason. properly mounted on the boat.
way to protect yourself and others.
0 Do not remove the engine cover
while the engine is running.
7
OUTBOARD MOTOR SAFETY
Refuel With Care Carbon Monoxide Hazard
Gasoline is extremely flammable, Exhaust gascontains poisonous
and gasoline vapor can explode. carbon monoxide. Avoid inhalation
Refuel outdoors, in a well- of exhaust gas. Never run the engine
ventilated area, with the engine in a closed garage or confined area.
stopped. Never smokenear
gasoline, and keep other flames
and sparks away.
Remove any portable fuel tank

from the boat for refueling. Keep
the portable fuel tank away from
the battery or other potential spark
sources.
Refuel carefully to avoid spilling

fuel. Avoid overfilling the fuel
tank.
After refueling, tighten the filler

cap securely. If any fuel is spilled,
make sure the area is dry before
starting the engine.
8
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CONTROLS AND FEATURES
CONTROL AND FEATURE IDENTIFICATION CODES
1
LRSA
Electric Stater S S S S S S S S
Refer to this chart for an explanation

of the Type Codes used in this manual to identify control and feature applications.
BF25AlBF30A are provided with the 0 According to Shaft Length (Example)

following types according to the shaft S: Short Shaft
length, control system, and start system. L: Long Shaft
X: Extra Long Shaft Destination
0 According to Control System A=United States
H: Tiller Handle Control S=Electric Starter
R: Remote Control R=Remote Control
H=Tiller Handle
S=Short Shaft
L=Long Shaft
X=Extra Long Shaft
10
COMPONENT AND CONTROL LOCATIONS

H Type (tiller handle)
THROTTLE GRIP
\
FUEL HOSE
I
OIL
\
LEVEL DIPSTICK STARTER GRIP
OIL/FILLERCAP /p""il starter type) INDICATOR
OIL PRESSURE
I
LIGHT
RSHIFT LEVER
CHOKE KNOB 0
DRAIN SCREW
EXHAUST PORT STOP SWITCH
/
LANYARD
I
WASH PLUG\PROPELLER \
WATER INTAKE SPARE EMERGENCY
(Flush plug) STOP SWITCH CLIP
GEAR OIL DRAIN BOLT
11
R Type (remote control)
OIL FILLER CAP
OIL PRESSURE
OVERHEATING
TILT LEVER INDICATOR LIGHT
LEVEL PLUG
STOP SWITCH
GEAR OIL EXHAUST PORT WATER INTAKE I
DRAIN PLUG SWITCH CLIP
PROPELLER
12
Fuel Tank (optional equipment)

FUEL GAUGE
\ VENT KNOB
FUEL TANK
(standard equipment)
PRIMING BULB
/ FUEL HOSE CONNECTOR
(female)
13
CONTROLS The engine stop switch has controls Choke Knob

for normal engine stopping and
H Type (tiller handle) emergency engine stopping. /
Engine Stop Switch and Switch The switch clip must be inserted in
Cl@ the engine stop switch in order for
the engine to start and run. The
ENGINE STOP SPARE SWITCH lanyard should be attached to the
SWITCH CLIP / operator’s PFD (Personal Flotation
Device) or worn around the wrist as
shown.
When used as described, the engine CHOKE KNOB

stop switch and lanyard system stops
the engine if the operator falls away The choke knob opensand closes the
from thecontrols. choke valves in the carburetors.
A spare emergency stop switch clip is The CLOSEDposition enriches the

LANYARD provided near the engine stop switch. fuel mixture for starting a cold
engine.
SWITCH CLIP
The OPEN position provides the
correct fuel mixture for operation
after starting, and for restarting a
warm engine.
LANYARD
14
Throttle Grip Throttle Friction Knob Gearshift Lever

R
THROTTLE
FRICTION KNOB
/
THROTTLE GRIP
THROTTLE OPENING INDICATOR

RELEASE
GEARSHIFT LEVER
The throttle friction knob adjusts The gearshift lever is used to select F
resistance to throttle grip rotation. (forward), N (neutral), or R (reverse)
gears.
Turn the knob clockwise to increase
The throttle grip controls engine friction for holding a throttle setting The engine can be started with the
speed. while cruising. gearshift lever in the N (neutral)
position only.
The curve on the grip shows throttle Turn the knob counterclockwise to
position and is helpful for setting the decrease friction for easy throttle grip If the gearshift lever is in the F
throttle correctly when starting (p. rotation. (forward) orR (reverse) position, the
37 ). recoil starter will not operate, and the
electric starter button (applicable
models) will not operate the starter
motor.
15
Recoil Starter Grip (models Electric Starter Button (models R Type (remote control)
equipped with recoil starter) equipped with electric starter)
For panel-mount or top-mount
R remote control information, refer to
GEARSHIFT (reverse) N the instructions provided with the
LEVER \ (neutral) remote control equipment.
Ignition Switch (side-mount

type)
I' \
A ," \
STARTER GRIP
ELECTRIC STARTER BUTTON
Pull the starter grip to operate the Press the starter button to operate the
recoil starter for starting the engine electric starter for starting the engine.
manually.
The electric starter button can be
The recoil starter will operate only used to operate the starter motor only
when the gearshift lever (p. 15 ) is in when the gearshift lever (p. 15 ) is in EMERGENCY
STOP SWITCH
the N (neutral) position, and the clip the N (neutral) position, and the clip
is in the engine stop switch or the is in the engine stop switch. CLIP
emergency stop switch.
The ignition switch controls the
ignition system and starter motor.
16
Turning the ignition switch key to the Switch Clip and Emergency Stop The switch clip must be inserted in
START position operates the starter Switch (side-mount type) the emergency stop switch in order
motor. The key automatically returns for the engineto start and run. The
to the ON position when released EMERGENCY lanyard must be attached to the
from the START position. STOP SWITCH operator’s PFD (Personal Flotation
Device) or worn around the wrist as
The ignition switch can be used to shown.
operate the starter motor only when
the gearshift lever (p. 15 ) is in the N When used as described, the
(neutral) position, and the switch clip emergency stop switch and lanyard
is in the emergency stop switch. system stops the engine if the
operator falls away from thecontrols.
Turning the ignition switch to the
OFF position stops the engine. A spare switch clip is stored in a slot
I LANYARD in the control housing.
SWITCH CLIP
I LANYARD
SWITCH CLIP
SPARE SWITCH CLIP
17
Choke/Fast Idle Lever Gearshift/Throttle Control
Lever (side-mount type)
(side-mount type)
HL
N (neutral) GEARSHIFTRHROTTLE
n CONTROL LEVER
L LOWEST POSITION
RELEASE LEVER
IDLE LEVER
The control lever automatically locks

itself in the N (neutral) position. To
move the lever out of the N (neutral)
The choke/fast idle lever opens and The OPEN position provides the position, you must squeeze the
closes the choke valves in the correct fuel mixture for operation neutral release lever on the underside
carburetors. after starting, and for restarting a of the lever handle.
warm engine.
The CHOKE position enriches the
fuel mixture for starting a cold
engine. The raised lever positions
also increase the idle speed to prevent
stalling.
18
The gearshifdthrottle control lever

controls engine speed andselects F
(forward), N (neutral), or R (reverse)
gears.
GEARSHIFTD'HROTTLE
Moving the control lever 30" from N CONTROL LEVER
(neutral) selects the gear, and further
movement increases engine speed.
\\ N (neutral)
A friction adjuster near the base of

the control lever adjusts the operating
resistance of the control lever (p. 47 ).
Less friction allows easier control

lever movement. More frictionhelps
to hold a steady throttle setting while
cruising.
19
Manual Choke Knob Common Controls Transom Angle Adjusting Rod
Engine Cover Latch The transom angle adjusting rod
limits the tilt angle of the outboard
motor when fully lowered.
COVER
UNLA
CHOKE KNOB
A manual choke knob is provided on

the right side of the motor which can 0 TRANSOM ANGLE ADJUSTINGROD
be used in the event the battery is I o
discharged. Pull the manual choke TRANSOM ANGLE
knob, and arich fuel mixture will be ADJUSTING ROD
provided to the engine.
FRONT SIDE
The engine cover latch fastens the

engine cover to the outboard motor.
TO CHANGE
TO LOCK
~
1 ,:iJ7
LOCKED POSITION
20
Trim Tab Steering Friction Bolt

Proper adjustment prevents the TIGHTENING BOLT
outboard motor from being trimmed .
too low (p. 49 ).
TRIM TAB
The trim tab compensates for The steering friction bolt adjusts
“torque steer,” which is a reaction of steering resistance.
the out board motor to propeller
rotation. Less friction allows the outboard
motor to turn more easily. More
If uncompensated, torque steer would friction helps to hold steady course
make the outboard motor tend to turn while cruising or to prevent the
to one side. outboard motor from swinging while
trailering the boat.
When the trim tab is correctly
adjusted (p. 57), steering effort is
equal in either direction.
21
Tilt Lever INSTRUMENTS INDICATORS
Fuel Gauge Oil Pressure Indicator
(R type)
LEVER FUEL GAUGE
The tilt lever enables the outboard A fuel gauge is built into the capof
motor to be raised for shallow water the portable fueltank.
I
A@
operation, beaching, launching, or
mooring.
To tilt, move the lever to the TILT

0 I
position, then raise the outboard
motor until the tilt mechanism
engages at 30°, 45", or 75" (p. 50 ).
OIL PRESSURE INDICATOR LIGHT
22
When the green light is lit, oil Overheating Indicator Cooling System Indicator
pressure is OK. (Rtype)
If oil pressure becomes low, the
green light will go off, and the
engine protection system will limit
engine speed.
Remote controls are also equipped

with a buzzer that sounds when the
green light goes off.
Low oil pressure indicates that the COOLING SYSTEM INDICATOR

engine oil level is low, or that there is
a problem with the engine lubrication If the engine overheats, the red light Water should flow fromthe cooling
system. will come on, and the engine system indicator while the engine is
protection system will limit engine running. This showsthat water is
speed. circulating through the cooling
system.
Remote controls are also equipped
with a buzzer that sounds when the If water stops flowing while the
red light comes on. engine is running, that indicates a
cooling system problem, such as
Engine overheating may be theresult clogged water intakes, which will
of clogged water intakes. cause engineoverheating.
23
OTHER FEATURES Anode Portable Fuel Tank
Overrev Limiter
The engine is equippedwith an
overrev limiter to prevent the
possibility of mechanical damage
from excessive enginespeed.
The overrev limiter may be activated

during operation, limiting engine
speed, if the outboard motor is tilted
excessively, or when ventilation
occurs during a sharpturn.
The anode is made of a sacrificial The portable fueltank has a capacity
If the overrev limiter is activated, material that helps to protect the of 6.6 US gal (25 Q ) and has a fuel
check thetrim angle of the outboard outboard motor from corrosion. gauge built into thecap.
motor.
The trim tab functions as an anode.
24
Fuel Cap Vent Knob Fuel Priming Bulb
VENT KNOB OUTLET END
' INLET END

(TANK)
The cap is provided with a vent knob A priming bulb is built into the fuel
to seal the portable fuel tank for hose that connects the fuel tank to the
carrying it to and from the boat. outboard motor.
Open the vent knob 2 or 3 turns
before starting the engine (p. 35 ). Before starting the engine, squeeze
the priming bulb until it feels firm.
This will ensure that fuel is supplied
to the engine (p. 36 ).
25
INSTALLATION
Correct and secure installation is BOAT TRANSOM The antiventilation plate of the
essential for safe boating and good REQUIREMENTS outboard motor should be0 - 2.0
performance. Follow the installation inches below the bottom of the boat.
instructions provided in this manual. Honda BF25A and BF3OA outboarc With the boat in the water andloaded,
motors can beinstalled on a boat the antiventilation plate should be
POWER REQUIREMENTS transom having athickness range of about 3.9 inches below the surface of
1.3 - 2.2 inches (35 - 57 mm). the water.
Before installation, check to be sure
that the outboard motor doesnot INSTALLATION POSITION
exceed the recommended maximum
horsepower for the boat on which it
is to be installed. Refer to the boat’s
certification plate for recommended
maximum horsepower.If the
certification plate information is not
available, contact the boat dealer or
manufacturer. I hU
For most applications, the outboard
motor should have a horsepower @ MOTOR TRANSOM HEIGHT
STERN CENTER LINE
rating which provides 80% of the @ BOAT TRANSOM HEIGHT
maximum recommended horsepower 0 0 - 2in(0 - 50mm)
for the boat. @ ANTIVENTILATION
Install the outboard motor onthe Type: Motor Transom Height

center of the boat transom. S: 17.0 in (431 mm)
L: 21.7 in (552 mm)
X: 24.9 in (632 mm)
26
INSTALLATION
If the outboard motor is installed too ATTACHMENT Attach the stem bracket to the boat
low, theboat will squat and be hard transom by tightening the clamp
to plane, it will tend to porpoise, and screws.
high-speed stability will be reduced.
Attach a rope from the boat to the
If the outboard motor is installed too hole in the stem bracket. This will
high, that will cause ventilation. help to prevent accidental loss of the
outboard motor.
Optimum installation height vanes
with boat type and bottom shape. You may further secure the outboard
Contact theboat manufacturer for motor by bolting the stern bracket to
any special recommendations that are the boat transom. Use theoptional
unique to a specific model of boat. / CLAMP SCREW mounting bolt and nut kit or other
SAFETY ROPE good quality stainless steel bolts, nuts,
If the transom needs to be modified and washers. Apply silicone sealant
to accommodate the outboard motor, to the bolt holes.
contact the boat manufacturer and
follow their recommendations for
corrective action.
TRANSOM BOARD
27
INSTALLATION
TRANSOM ANGLE BATTERY CONNECTIONS The battery should be kept in a
ADJUSTMENT corrosion-resistant battery box that is
securely mounted in a location away
Use thetransom angle adjustment rod from the fuel tank and protected
(p. 34 ) to adjust the angle of the from water and direct sunlight.
outboard motor so the propeller is
perpendicular to the surface of the Types With Electric Starter
water.
These types areequipped with
battery cables. The positive (+) cable
has a red band at the battery
connector. The negative (-) cable has
a black band at the battery connector.
BATTERY
Honda BF25A and BF30A outboard For electric starter operation, use a
motors produce a 12-volt, 6-ampere 12-volt battery with an ampere-hour
battery-charging current and are rating of at least 70 Ah.
equipped for connection to a 12-volt
battery. The battery-charging circuit Types Without Electric Starter
is protected by a 15-ampere fuse
located in the enginecompartment. These types are equipped with a 12-
volt dc battery-charging receptacle
which can be wired to a 12-volt
The outboard motor’s 12-volt output battery to power lights and electrical
is intended for battery charging only. accessories for the boat.
Lights and electrical accessories for
the boat should be connected to the
battery.
28
INSTALLATION
Plug and Receptacle Battery Terminals

(models without electric starter)
.. DC RECEPTACLE ( + ) TERMINAL
L,
fl-
-&
- TO ACCESSORI:ES
i I\ I
CHARGING CORD
\
BLACK or GREEN
To prepare the outboard motor for Battery Connect the positive (+) battery cable
connection to a battery, pull the cover to the positive (+) battery terminal,
out of the DC receptacle, connect Minimum Requirements then connect the negative (-) battery
your battery charging wires to the cable to the negative (-) battery
receptacle. Attach the connected DC 12V-70AH terminal.
receptacle on the holder on the tiller
arm. The negative (-) battery cable should
always be removed from the battery
The receptacle is provided with a when connecting or disconnecting
cover, which should be attached the positive (+) battery cable, so tools
when the plug is removed, in order to cannot cause a short circuit if they
keep the receptacle clean and dry. touch a grounded part while being
used on the positive (+) battery
terminal fitting.
29
INSTALLATION
pEiq
Be careful to avoid connecting the
battery in reverse polarity, as that
will damage thebattery-charging
system in the outboard motor.
30
BEFORE OPERATION
ARE YOU READYTO GET Safety
UNDER WAY ?
Always wear a PFD (Personal Improperly maintaining
Your safety is your responsibility. A Flotation Device) while on the boat. this outboard motor, or
little time spent in preparation will failing tocorrect a problem
significantly reduce your risk of Attach the emergency stop switch before operation, could
injury. lanyard securely to your PFD or to cause a malfunction in
your wrist. which you couldbe
Knowledge seriously injured.
IS YOUR OUTBOARD
Read and understand this manual. MOTOR READY TO GO ? Always perform a
Know what the controls do and how preoperation inspection
to operate them. For your safety, and to maximize the before each operation, and
service life of your equipment, it is correct any problem.
Familiarize yourself with the very important to take a few
outboard motor and its operation moments before you operate the
before you get under way. Know outboard motor to check its condition. Before beginning your preoperation
what to do in case of emergencies. Be sure to take care of any problem checks, be sure the ignition switch is
you find, or haveyour authorized in the OFF position.
Familiarize yourself with all laws Honda Marine dealer correct it,
and regulations relating to boating before you operate the outboard
and the use of outboard motors. motor.
31
BEFORE OPERATION
Safety Inspection Maintenance Inspection
Look around the outboard motor Check the engine oil level (p. 58).
for signs of oil or gasoline leaks. Running the engine with a low oil
level can cause engine damage.
If you are using the portable fuel
tank, make sure it is in good Check to be sure the propeller is
condition and properly secured in undamaged, and the castle nut is
the boat (p. 35 ). secured with the cotter pin (p. 72 ).
Check that the fuel hose is Check that the anode is not
undamaged and properly excessively worn. The anode help
connected (p. 35 ). to protect the outboard motor from
corrosion.
Wipe up any spills before starting
the engine. Make sure the tool kit and
emergency starter rope are
0 Check the stern bracket to be sure onboard (p. 54). Replace any
the outboard motor is securely missing items.
installed.
Check the fuellevel in the fuel
Check that all controls are tank (p. 67 ).
operating properly.
Replace any damaged parts.
Check that all fasteners are in

place and securely tightened.
32
OPERATION
SAFE OPERATING BREAK-IN PROCEDURE Next 60 minutes:
PRECAUTIONS Run the engineup to amaximum of
Break-in period: 10 hours 4,000 to 5,000 rpm, which is about
To safely realize the full potential of 50% to 80% of maximum throttle
this outboard motor, you need a Proper break-in operation allows the opening.
complete understanding of its moving parts to wear in smoothly for
operation and a certain amount of best performance and long service Short full-throttle bursts are OK, but
practice with its controls. life. do not operate the engine
continuously at full throttle.
Before operating the outboard motor First 15 minutes:
for the first time, please review the Run the engine at trolling speed. Use For boats that plane easily, bring the
IMPORTANT SAFETY the minimum throttle opening boat up on plane, and then reduce the
INFORMATION on page 7 and the necessary to operate the boat at a safe throttle opening to the recommended
chapter titled BEFORE OPERATION. trolling speed. rpm range.
For your safety, avoid starting or Next 45 minutes: Next 8 hours:

operating the engine in an enclosed Run the engine up to a maximum of Do not run the engineat full throttle
area. Your engine’s exhaust contains 2,000 to 3,000 rpm, which is about for more than 5 minutes at a time.
poisonous carbon monoxide gas 10% to 30% of maximum throttle
which can collect rapidly in an opening.
enclosed area and cause illness or
death.
33
OPERATION
TRANSOM ANGLE The transom angle adjusting rod
ADJUSTMENT limits the tilt angle of the outboard
motor when fully lowered. Do not allow water to enter the idle
exhaust port or the engine can be
Proper adjustment prevents the damaged.
outboard motor from being trimmed
too low (p. 49).
To adjust, first tilt the outboard

motor so it is not resting on the rod.
PUS
Push the rod in and turn the end of
the rod up, so the latch will fall into
/v;
line with the rod.
TRANSOM ANGLE ADJUSTING ROD
Remove the rod and reinsert it in the
TRANSOM ANGLE ADJUSTING ROD desired position.
TO
CHANGE ~
Push the rod in and turn the end of
the rod down, so the latch will fall to
the locked position. Then release the
rod.
TO LOCK LOCKED POSITION
34
OPERATION
PORTABLE FUEL TANK Secure the portable fuel tank in the FUEL HOSE CONNECTIONS
boat, so it won’t move around and
become damaged. FUEL HOSE CONNECTOR
Before use, open the fuel tank vent

by turning the vent knob at least 2 or
3 turns counterclockwise.
Gasoline is highly
flammable and explosive.
(FUEL TANK SIDE)
You can be burned or
Place the portable fuel tank in a well- seriously injured when FUEL HOSE CONNECTOR
ventilated location, away from direct handling fuel.
sunlight, to reduce the possibility of a
gasoline vapor explosion. Stop the engine and keep
heat, sparks, and flame
To ensure that the outboard motor away.
will be able to draw fuel from the Handle fuel only
tank, place the tank within 6 feet of outdoors.
the outboard motor and not more Wipe up spills
(OUTBOARD MOTOR SIDE)
than 3 feet below the fuel connector immediately.
on the outboard motor. Connect the fuel hose to the tank and
the outboard motor, as shown. Be
sure both connectors snap securely
into place.
35
OPERATION
FUEL PRIMING STARTING THE ENGINE The enginewill not start or run,
unless the clip is in the switch.
The emergency stop switch clip
OUTLET END and lanyard system is a safety
(MOTOR) ENGINE STOP
device that will stop the engineif
you fall away from thecontrols
while operating the boat.
PRIMING BULB
Always attach the lanyard to your
PFD, or to your wrist, before
INLET END
(TANK)
I
Hold the priming bulb with the outlet LANYARD
SWITCH CLIP
end higher than the inlet end.
Squeeze thepriming bulb several
times, until it feels firm,indicating 1. Put the emergency stop switch clip
that fuel has reached the carburetor. in the engine stop switch, and
attach the lanyard to your PFD
Check to besure there are no fuel (Personal Flotation Device) or to
leaks before starting the engine. your wrist, as shown.
Do not squeeze thepriming bulb

when the engine isrunning because
that could flood thecarburetors.
36
OPERATION
GEARSHIFT LEVER POINTER
THROTTLE GRIP
CHOKE KNOB
2. Check the position of the gearshift 3. To start a cold engine, pull the 4. Align the START position with
lever. It must be in the N (neutral) choke knob to the CLOSED the pointer for starting the engine.
position for starting. position. To restart a warm engine,
leave the chokeknob in the OPEN
The enginewill not start if the position.
gearshift lever is in the F (forward)
or R (reverse) position.
37
OPERATION
STARTER GRIP Electric starter 6. If the choke knob was pulled to

(electric starter model) the CLOSED position to start the
Press the electric starter button and engine, gradually push it to the
hold it there until the engine starts. OPEN position as the engine
warms up.
When the engine starts, release the
\ button. Also, as the engine warms up, the
throttle grip can be turned to the
If the enginefails to start within 5 SLOW position without stalling.
seconds, release the button, and
wait at least I O seconds before 7. Before getting under way, allow
ELECTRIC STARTER operating the starter again. the engine to warm up sufficiently
BUTTON to ensure good performance.
p
q
i
Using the electric starter f or more During the warm-up period, check
than 5 seconds at a time will the oil pressure indicator (p. 22 )
overheat the starter motor and can and cooling system indicator (p.
damage it. 23 ).
Pushing the electric starter button If the indicators show any

while the engine is running can abnormal condition, immediately
damage the starter motor and stop the engineand determine the
5. Recoil starter flywheel. cause of the problem. Refer to
Pull the recoil starter grip slowly TAKING CARE OF
until you feel resistance, then pull UNEXPECTED PROBLEMS, p.
briskly. 79.
Return the starter grip gently.
38
OPERATION
R Type The enginewill not start or run,

N (neutral)
(remote control) unless the clip is in the switch.
For panel-mount or top-mount The emergency stop switch clip

remote control information, referto and lanyard system is a safety
the instructions provided with the device that will stop the engine if
remote control equipment. you fall away from the controls
while operating the boat.
Side-Mount Type
Always attach the lanyard to your
PFD, orto your wrist, before
2. Set the control lever in the N

(neutral) position.
The engine will not start if the F

(forward) or R (reverse) gears are
SWITCH CLIP LANYARD engaged.
1. Put the emergency stop switch clip

in the emergency stop switch, and
attach the lanyard to your PFD
(Personal Flotation Device) or to
your wrist, as shown.
39
OPERATION
Using the electric starter f or more

than 5 seconds at a time will
overheat the starter motor and can
FAST IDLE RANGE damage it.
Turning the ignition switch key to

the START position while the
engine is running can damage the
starter motor and flywheel.
IGNITION SWITCH KEY
CHOKWAST IDLE LEVER
3. To start a cold engine, lift the 4.Turn the ignition switch key to the
choke/fast idle lever up fully. START position and hold it there
until the engine starts.
To restart a warm engine, raise the
choke/fast idle lever slightly. When the engine starts, release the
key, allowing it to return to the ON
Choke/fast idle lever cannot be position.
raised unless the control lever is in
the N (neutral) position. If the engine failsto start within 5
seconds, release the key and wait
The control lever cannot be moved at least 10 seconds before
away from the N (neutral) position operating the starter again.
unless the choke/fast idle lever is
lowered.
40
OPERATION
CHOKEEAST IDLE LEVER 6. Before getting under way, allow EMERGENCY STARTING
the engineto warm up sufficiently
to ensure good performance. If the battery is discharged, or the
starter motor and the recoil starter are
Above 41°F (5"C),warm up the inoperative, you can start the engine
engine for 2 or 3 minutes. manually using the emergency starter
rope supplied with the tool kit.
Below 41 "F (5"C), warm up the
engine for at least 10 minutes at
2,000 rpm.
During the warm-up period,

check the oil pressure indicator
(p. 22 ), overheating indicator (p.
5. If the choke/fast idlelever was 22 ), and cooling system
used to start the engine,gradually indicator (p. 23 ).
lower the lever as the engine
warms up. If the indicators show any
abnormal condition,
When the choke/fast idlelever is immediately stop the engineand
fully lowered, the control lever can determine the cause of the ENGINE COVER LATCHES
be moved away from theN problem. Refer to TAKING
(neutral) position. CARE OF UNEXPECTED 1. Unlatch and remove the engine
PROBLEMS, p. 79. cover.
41
OPERATION
WASHERS NEUTRAL START FLYWHEEL

CABLE
6 X
BO1 (4) \
WASHERS \ RECOIL STARTER

FLYWEEL COVER ASSEMBLY EMERGENCY STARTER ROPE
2. (Electric starter type) 3. Set the controls the same as for 5. Pull the emergency starter rope
Remove the fourbolts and thefour normal starting (see pages 35 - slowly until resistance is felt, then
washers then remove the flywheel 40 ). Use the choke and fastidle pull briskly.
cover. controls if needed.
Keep away from moving parts
(Recoil starter type) Turn the ignition switch key to the while pulling the rope.
Move the shiftlever to the F ON position.
(forward) position. Loosen the If necessary, rewind the rope and
neutral start cable locknut and 4.Set theknotted end of the pull again. If the engine does not
disconnect the neutral start cable. emergency starter rope in the notch start after several attempts, referto
Unscrew the fourbolts and remove in the flywheel.Wind the rope TAKING CARE OF
the recoil starter assembly. clockwise around the flywheel, as UNEXPECTED PROBLEMS, p.
shown. 79.
42
OPERATION
6. If the choke and fast idle control(s) 8. If it was necessary to remove the
was used to start the engine,return emergency stop switch lanyard
the control(s) to the normal Exposed moving partscan from your wrist to perform the
operating position as the engine cause injury. emergency starting procedure, be
warms up. sure the lanyard is attached to your
Do not operate the wrist before operating the
During the warm-up period, check outboard motor without outboard motor.
the oil pressure indicator (p. 22 ), the enginecover.
overheating indicator (p. 22 ), and 9. Have your closest authorized
cooling system indicator (p. 23 ). Use extreme care when Honda marine dealer check your
installing the engine electrical system and correct the
7. Leave the recoil starter assembly cover. problem, so you can use the
off, but install the engine cover (p. electric starter.
20 ), and lock it in place by
latching the engine cover latch. The recoil starter assembly (p. 42 )
should be reinstalled after the
electric starter is working again.
Install the recoil starter assembly
with the engine stopped.
43
OPERATION
STOPPING THE ENGINE Normal Engine Stopping
Emergency Engine Stopping
SWITCH CLIP
THROTTLE GRIP
N (neutral)
SWITCH CLIP
To stop the engine in an emergency,
pull the clip outof the engine or
emergency stop switch by pulling the CONTR
lanyard. LEVER
We suggest that you stop the engine

this way occasionally to verify that
the engine or emergency stop switch
is operating properly.
1. Move the throttle grip to the
slowest speed and control gears to
N (neutral) position.
44
OPERATION
2. Turn the ignition switch key to the
1 PUSH OFF position or press the engine
stop switch until the engine stops.
3. When the boat is not in use,

remove and store the ignition key
and the emergency stop switch clip
and lanyard.
ENGINE STOP SWITCH
IGNITION SWITCH KEY
45
OPERATION
GEARSHIFTING AND To shift gears, turn the throttle grip to
THROTTLE OPERATION the SLOW position, then move the THROTTLE
gearshift lever to select F (forward),
H Type (tiller handle) N (neutral) or R (reverse) gears.
The engine can be started with the

gearshift lever in the N (neutral)
position only.
The throttle grip can be turned to the

FAST position only when the
THROTTLE GRIP gearshift lever is in the F (forward) RELEASE
position.
Use the throttle friction knob to help

R (reverse)
hold a constant throttle setting while
cruising.
Turn the knob clockwise to increase

throttle grip frictionfor holding a
constant speed.
Turn the knob counterclockwise to

decrease friction for easy grip
GEARSHIFT LEVER rotation.
46
OPERATION
R Types To shift gears, move the control lever
(remote control) to select F (forward), N (neutral) and
R (reverse) gears.
Side-Mount Type
The control lever cannot be moved
from the N (neutral) position unless
the neutral release lever is squeezed.
Moving the control lever beyond the

gear selection range increases engine
FRICTION TO DECREASE
speed. FRICTION
ADJUSTER
Adjust the throttle friction adjuster so

the control lever will hold a constant
throttle setting while cruising.
47
OPERATION
STEERING R Type
(remote control)
,\ \\
TO DE
STEERING
Steer theboat in the same manner as
an automobile.
Steer by moving the tiller handle Use the steering friction lever to help
opposite thedirection you want the hold a steady course while cruising.
boat to turn.
Turn the knobclockwise to increase
steering friction for holding a steady
course.
Turn the knob counterclockwise to

decrease friction for easy turning.
48
OPERATION
CRUISING Trim
I NOTICE I
Engine Speed Install the outboard motor at the best Excessive tridtilt angle during
trim angle for stable cruising and operation can cause propeller
For best fuel economy, limit the maximum power. ventilation, overheating, and water
throttle opening to 80%. Use the pump damage.
throttle friction control (p. 45 ) to Trim angle too large: Incorrect
help you hold a steady speed. causes boat to “squat”. Motor Angle (Cruising)
For rough water conditions or large Trim angle too small: Incorrect
waves, slow down to prevent the causes boat to “plow”.
propeller from rising out of the water.
It is necessary to trim the angleof the
The engineis equipped with an outboard motor to compensate for
overrev limiter to prevent the changes in boat load, weight
possibility of mechanical damage distribution, water conditions, or
from excessive engine speed. propeller selection.
If, forexample, the outboard motor Under normal conditions, the boat CORRECT
is tilted excessively, or ventilation will perform best when the GIVES MAXIMUM PERFORMANCE
occurs during a sharp turn, the engine antiventilation plate is level with the
may overrev, activating the overrev water.
limiter.
If engine speed becomes unstable at When cruising into a high wind, trim
high speed due to activation of the the outboard motor down slightly to
overrev limiter, reduce speed and level the boat and improve stability.
check the trim angle of the outboard With a tail wind, trim the outboard
motor. motor up slightly.
49
OPERATION
If steering effort is not equal in both SHALLOW WATER To tilt the outboard motor, move the
directions, adjust the trim tab to OPERATION tilt lever to the TILT position, then
compensate for "torque steer," raise the outboard motor to the 30" or
which is the reaction of the outboard When operating in shallow water, tilt 45" position by pulling on the engine
motor to propeller rotation. the outboard motor, using the tilt cover grip.
lever, so the propeller and gear case
won't hit the bottom. pmq
Do not use the tiller handle as a
lever to raise the outboard motor.
Applying excessive force to thetiller
handle can damage it.
While theoutboard motor is tilted,

proceed at a low speed, and do not
operate the outboard motor in reverse.
45"
The outboard motor will rise
suddenly if operated in reverse.
Adjust the trim tab with the engine Monitor water flow from the cooling
stopped. Loosen the bolt above the system indicator (p. 23 ) to be sure
trim tab, turn the trim tab, then the outboard motor is not tilted so
tighten the bolt securely. high the water intake is out of the
water.
adjusted, steering effort will be equal
in both directions.
50
OPERATION
MOORING, BEACHING,
pEiG-1 ENGINE COVER GRIP
LAUNCHING
An excessive tilt angle during
operation can cause propeller
ventilation, overheating, and ,water
pump damage.
75" (when mooring)

TILT LEVER
To return the outboard motor to the To raise the outboard motor out of
normal operating position, move the the water while the boat is moored, or
tilt lever to the RUN position, raise for maximum clearance when
the outboard motor slightly to beaching or launching, tilt the
disengage the tilt mechanism, then outboard motor to the 75" position.
slowly lower the outboard motor.
Stop the engine before tilting the
outboard motor. The 75" position is
not an operating position.
Raise and lower the outboard motor

as described on p. 50.
51
SERVICING YOUR OUTBOARD MOTOR
THE IMPORTANCE OF To help you properly care for your Remember that your authorized
MAINTENANCE outboard motor, the following pages Honda marine dealer knows your
include a maintenance schedule, outboard motor best and is fully
Good maintenance is essential for routine inspection procedures, and equipped to maintain and repair it.
safe, economical, and trouble-free simple maintenance procedures using
operation. It will also help reduce air basic hand tools. Other service tasks To ensure thebest quality and
pollution. that are more difficult, or require reliability, use only new, genuine
special tools, are best handled by Honda parts or their equivalents for
professionals and are normally repair and replacement.
performed by a Honda technician or
Improperly maintaining other qualified mechanic. Maintenance, replacement,or
this outboard motor, or repair of the emission control
failure to correcta problem The maintenance schedule applies to devices and systems may be
before operation,can cause normal operating conditions. If you performed by any marine engine
a malfunction in which you operate your outboard motor under repair establishmentor individual,
could be seriously hurt or unusual conditions, consult an using parts that are“certified” to
killed. authorized Honda marine dealer for EPA standards.
recommendations applicable to your
Always follow the individual needs and use.
inspection and
maintenance
recommendations and
schedules in thisowner’s
manual.
52
~
MAINTENANCE SAFETY Safety Precautions Read the instructions before you

begin, and make sure you have the
Some of the most important safety 0 Make sure the engine is off before tools and skills required.
precautions follow. However, we you begin any maintenance or
cannot warn you of every repairs. This will eliminate several 0 To reduce the possibility of fire or
conceivable hazard that can arise in potential hazards: explosion, be careful when
performing maintenance. Only you working around gasoline. Use only
can decide whether or not you should - Carbon monoxide poisoning a nonflammable solvent, not
perform a given task. from engine exhaust. gasoline, to clean parts. Keep
Be sure there is adequate cigarettes, sparks, and flames away
ventilation whenever you from all fuel-related parts.
operate the engine.
Failure t o properly follow Wear gloves when handling the
maintenance instructions -Burns from hot parts. propeller to protect your hands
and precautions cancause Let the engineand exhaust from sharp edges.
you tobe seriously hurt or system cool before touching.
killed.
-Injury from moving parts.
Always follow the Do not run the engine unless
procedures and instructed to do so.
precautions in the owner’s
manual.
53
TOOL KIT AND
EMERGENCY STARTER
ROPE
4
n
W
EMERGENCY STARTER ROPE
The following tools are supplied with

the outboard motor for simple
maintenance procedures and
---10 X 12 mm WRENCH
8 mm WRENCH
FLAT SCREWDRIVER
PHILLIPS SCREWDRIVER c
18 X 19 mm
SOCKET
WRENCH
PLIERS
U >
L
TOOL BAG
emergency repairs. An emergency
starter rope is also supplied. Keep
these items on the boat, so they will
always beavailable if you need them.
w SCREWDRIVER HANDLE
OIL CHECK SCREWDRIVER
54
MAINTENANCE SCHEDULE
Check for water
Emission-related items
(1) Lubricate more frequently whenused in salt water.
(2) These items should be servicedby an authorized Honda marine dealer, unlessyou have the proper toolsand are mechanically proficient.
Refer to the Honda shop manual for service procedures.
(3) For professional commercial use, log hours of operation to determine proper maintenance intervals.
55
\REGULAR SERVICE PERIOD (3)

Perform at every indicated month or \ First month Every 6 months Every year Every 2 year
operating hour interval, whichever
comes first.
Emission-related items.
(1) Lubricate more frequently whenused in salt water.
(2) These items should be servicedby an authorized Honda marine dealer, unlessyou have the proper toolsand are mechanically proficient.
Refer to the Hondashop manual for service procedures.
(3) For professional commercial use, log hours of operation to determine proper maintenance intervals.
56
SERVICING YOUR OUTBOARDMOTOR
TRIM TAB ADJUSTMENT
The trim tab compensates for 1 I“
“torque steer” which is a reaction of A
TIGHTENING
A
the outboard motor to propeller TIGHTENING
rotation. BOLT
If uncompensated, torque steer would

make the outboard motor tend to turn B o L T ~ ~ ~ G H
to one side.

adjusted, steering effort is equal in
either direction.
If steering effort is unequal, loosen TRIM TAB TRIM TAB

the trim tab bolt and adjust the angle
of the trim tab. Retighten the trim tab
bolt securely. If less effort is required to make left If less effort is required to make right
turns, move the back of the trim tab turns, move the back of the trim tab
left. right.
Adjust the trim tab in small

increments, and retest steering effort
with the boat evenly loaded and
running at cruising speed.
57
ENGINE COVER REMOVAL Engine Oil Level Check OIL FILLER CAP
AND INSTALLATION
Check the engine oil level with the
engine stoppedand the outboard
motor in the vertical position.
1. Unlatch and removethe engine

cover.
2. Remove the dipstick and wipe it

clean.
ENGINE COVER LATCH

The engine coverlatch fastens the 4.If the oil level is low, remove the
engine coverto the outboard motor. oil filler cap, and add oil to reach
the upper limit mark shown onthe
To remove the engine cover, unlatch dipstick. Use the oil recommended
the engine coverlatch, then lift the on p. 60.
engine cover offthe outboard motor.
pEiq
To install the engine cover,place the Running the engine with a low oil
cover on the outboard motor, then level can cause engine damage.
latch the engine coverlatch securely.
3. Insert the dipstick all the way in, 5 . Install the oil filler cap andtighten
then remove it and checkthe oil it securely.
level shown on the dipstick.
6. Install and lock the engine cover.
58
Engine Oil Change SEALING WASHER piiq

An engine oilevacuatiordfilling Improper disposal of engine oil
device may be used to remove/add can be harmful to the environment.
the engine oil. If you change your own oil, please
dispose of the used oilproperly.
Drain the used oil while the engine is Put it in a sealed container, and
warm. Warm oil drains quickly and take it to a recycling center. Do
completely. not discard it in a trash bin or
dump it on the ground.
1 . Unlatch and remove the engine
cover (p. 58 ). /-
DRAIN BOLT
4. With the outboard motor in a
vertical position, fill to the upper
limit mark on the dipstick (p. 58 )
2. Remove theoil filler cap, and with the recommended oil.
remove the engine oil drain bolt.
Engine oil refill capacity:
3. Allow the used oil to drain Without oil filter change:
completely, then reinstall the 1.7 US qt (1.6 Q , 1.4 Imp qt)
engine oil drain bolt, and tighten it With oil filter change:
securely. 2.0 US qt (1.9 Q , 1.7 imp qt)
5. Install the oil filler cap and tighten

it securely.
59
Engine Oil Recommendations The SAE oil viscosity and service Gear Oil Level Check
classification are in the API label on
Oil is amajor factor affecting the oil container. Honda recommends Check the gear oil level with the
performance and service life. Use that you use API SERVICE category engine stopped and the outboard
4-stroke automotivedetergent oil. SG, or SH oil with the “starburst” motor in the vertical position.
certification mark displayed on the LEVEL PLUG
SAE Viscosity Grades container.
-20
L
-30
d I
-20
0
4
-10
20
I
0
40
4
10
60
I
20
80
I
30
100 ‘F
I
40’c
AMBIENTTEMPERATURE
DRAIN PLUG
SAE 1OW-30 is recommended for Remove the oillevel plug and see
general use. Other viscosities shown whether oil flows fromthe oil level
in the chart may be used when the hole.
average temperaturein your area is
within the recommended range. If oil flows from theoil level hole,
the oil level is OK. Reinstall the plug
and tighten it securely.
OIL LEVEL PLUG TORQUE:

2.6 Ibf-ft(3.5 N-m,0.36kgfmm)
60
If no oil flows from the oil level hole, Gear Oil Change 3. Allow the used oil to drain
add the recommended oil following completely, then install an oil
the procedure described in Gear Oil Change thegear oil with the engine pump adapter in the oil drain hole.
Change. stopped and the outboard motor in
the vertical position. If water or contaminated (milky-
colored) oil flows out the drain
hole when the plug is removed,
have theoutboard motor checked
by and authorized Honda Marine
dealer.
1. Place a suitable container below

the oil drain hole to catch the used
oil, then remove the oil level plug
and oil drain plug.
2. Remove any metal particles from

the magnetic end of the oil drain
Plug*
61
OIL LEVELPLUG TORQUE:
2.6 Ibf-f?(3.5 N-m, 0.36 kgf-m)
Avoid losing more than 1 fl oz (30

cm3)while reinstalling the drain
Plug*
OIL DRAIN PLUG TORQUE:
2.6 Ibfmft (3.5 N.m ,0.36kgfmm)
GEAR OIL BOTTLE
4. Add oil through the oil drain hole

I
until it flows out theoil level hole,
then install the oil level plug and
the oil drain plug.
GEAR OIL CAPACITY:

0.29 US qt (0.27 !J,0.24 Imp
st)
Outboard motor SAE 90 hypoid
gear oil API Serviceclassification
(GL-4 or GL-5)
62
Lubrication Points THROTTLE REEL TILT SHAFT

Wipe the outsideof the enginewith a cloth dipped in oil.
Apply marine anticorrosion grease to the following parts,
then every 20 hours or amonth after the date of purchase
for initial 100 hours or 6 months.
I NOTICE I
Apply anticorrosion oil to pivot surfaces where grease
cannot penetrate.
Apply Honda Marine Corrosion Inhibitor (or equivalent) to all areas under the engine coverexcept the belts.
63
ADJUSTING ROD 1
64
Spark Plug Service

RECOMMENDED SPARK PLUGS: (0.60 - 0.70 mm)
DR7EA (NGK)
X22ESR-U (DENSO)
Incorrect spark plugs can cause

engine damage.
1. Unlatch and remove the engine

cover (p. 58 ).
SPARK PLUG SPARK PLUG
CAPS WRENCH
2. Disconnect the spark plug caps
from thespark plugs. 4.Inspect the spark plugs. Replace 5. Measure the spark plug electrode
them if the electrodes are worn, or gap with a suitable gauge. The gap
3. Remove the spark plugs with a if the insulators are cracked or should be 0.024 - 0.028 inches
spark plug wrench and screwdriver chipped. Clean the spark plugs (0.60 - 0.70 mm).
supplied in the tool kit. with a wire brush if you are going
to reuse them.
65
7. After each spark plug seats, tighten
with a spark plug wrench supplied
in the tool kit to compress the
sealing washer.
If reinstalling the used spark plugs,

tighten 1/8 - 1/4 turn after the
spark plugs seat.
If reinstalling new spark plugs,

tighten 1/2 turn after the spark
plugs seat.
6. Install the spark plugs carefully, Loose spark plugs can overheat
by hand, to avoid cross-threading. and damage the engine.
Overtightening the spark plugs
can damage the threads in the
cylinder head.
8. Attach the spark plug caps.
66
REFUELING
Portable Fuel Tank Gasoline ishighly
(optional equipment) flammable andexplosive.
FUEL TANK CAPACITY: You can be burned or

6.61 US gal (25.0 !2,5.50Imp seriously injured when
gal) handling fuel.
FUEL GAUGE
Check the fuel gaugeand refill the Stop the engine and keep
tank when necessary. SAFE FILLLEVEL heat, sparks, and flame
away.
Remove the fuel tank from the boat Handle fuel only
for refueling. outdoors.
Wipe up spills
VENT KNOB immediately.
Never refill the fuel tank inside a

Refuel in a well-ventilated area. Fill building where gasoline fumes may
the tank to the SAFE FILL LEVEL reach flames or sparks. Keep
line. gasoline away from appliance pilot
F1JEL CAP lights, barbecues, electric appliances,
After refueling, install the cap and power tools, etc.
To refuel, turn the vent knob tighten it securely. Turn the vent
counterclockwise to the OPEN knob clockwise to the CLOSED Spilled fuel is not only a firehazard,
position, and unscrew the fueltank position, and return the fuel tank to it causes environmental damage.
cap. the boat. Wipe up spills immediately.
67
FUEL RECOMMENDATIONS
Use unleaded gasoline with apump Running the engine with persistent Gasoline ishighly
octane ratingof 86 or higher. spark knock or pinging can cause flammable and explosive.
engine damage.
These outboard motors are certified You can be burned or
to operate on unleaded gasoline. Running the engine with persistent seriously injured when
Unleaded gasoline produces fewer spark knock or pinging is misuse, handling fuel.
engine and spark plug deposits and and the Distributor’s Limited
extends exhaust system life. Warranty does not cover parts Stop the engine andkeep
damaged by misuse. heat, sparks, and flame
Never use stale or contaminated away.
gasoline or an oiVgasoline mixture. Handle fuel only
Avoid getting dirt or water in the fuel Fuel Pump Filter Inspection outdoors.
tank. and Replacement Wipe up spills
immediately.
Occasionally you may hear a light The fuel pump filter located
is under
“spark knock” or “pinging” the engine coverbetween the fuel
(metallic rapping noise) while coupling and the fuel pump.
operating under heavy loads. This is
no cause for concern. Water or sediment accumulated in
the filter can cause loss of power or
If spark knock orpinging occurs at a hard starting. To prevent engine
steady engine speed, under normal malfunction, inspect the filter and
load, change brands of gasoline. If replace when necessary.
spark knock orpinging persists, see
an authorized Honda marine dealer.
68
4. Disconnect the fuel hose fromthe
outboard motor, and place clamps
on the fuel hoses on each side of
the filter to prevent fuel leakage
when the fuelhoses are
disconnected.
FUEL HOSES
ENGINE COVER LATCHS

I
FUEL FILTER
1. Unlatch and remove the engine 2. Lift the fuel filterup from the
cover for access to the fuel pump engine under case.
filter.
3. Inspect the filter for water and/or FUEL HOSE CLIPS
sediment accumulation.
5. Remove the fueltubes from the
If the filter is OK, reinstall it. If used filter, and discard the filter.
water and/or sediment are present,
replace the filter as described in To ease tube removal, release the
the following steps. Always tube clips by squeezing the clip
replace the filter at the scheduled ends together with pliers while
replacement interval (p. 56 ). pulling off the tubes.
69
Portable Fuel Tank and Filter Fuel Tank Filter
Cleaning
TANK FILTER JOINT
Fuel Tank (Fuel Connector)
FUEL H9SE
'FILTER
ARROW 1. Unscrew the fuel hose connector
(Fuel Flow Direction)
by turning it counterclockwise,
6. Install the new filter on the fuel then remove the fuel hose
hoses, with the fuel flow arrow connector and fuel filter from the
pointing toward the fuel pumpas tank.
shown. Fuel flow will be impeded
if the filter is installed backward. Empty the portable fuel tank into an 2. Clean the filterin nonflammable
approved gasoline container. Use a solvent. Inspect the fueltank filter
7. Remove the fueltube clamps, and funnel to avoid spilling fuel. Rinse and the connector O-ring. Replace
connect the fuel hose to the the fueltank with nonflammable them if damaged.
outboard motor. Check for leaks. solvent to remove any accumulated
sediment. 3. Reinstall the filter andhose
8. Install and lock the engine cover. connector in the fuel tank. Tighten
the hose connector securely.
70
Recoil Starter Rope Inspection Anode Replacement

N
O
[
CT
E
I
]
Painting or coating the anode will
defeat its purpose and will leadto
rust and corrosion damage to the
outboard motor. The anode must be
exposed to the water in order to
protect the outboard motor.
RECOIL STARTER ROPE
Inspect the recoil starter rope, and The trim tab functions as an anode. It
replace it if it becomes frayed. is made of a sacrificial material that
helps to protect the outboard motor
Always keep the emergency starter from corrosion.
rope on the boat in case the recoil
starter rope fails. Replace the anodewhen it has been
reduced to about half its original size,
or if it is crumbling.
71
Propeller Replacement Removal Installation
Before replacing the propeller, Remove the cotter pin, unscrew the Install the propeller in the reverse
remove the clip fromthe engine stop castle nut, remove the washer, then order of removal.
switch to prevent any possibility of remove thepropeller and thrust
the engine being started while you washer. I NOTICE 1
are working with the propeller. Install the thrust washer with the
grooved side toward the gear case.
The propeller blades may have sharp
edges, so wear heavy gloves to Use a genuine Honda cotter pin
protect your hands. the pin ends asshown.
PROPELLER COTTER PIN (stainless)

\
COTTER PIN (stainless)
THRUST WASHER
6
72
STORAGE
STORAGE PREPARATION Flushing With the Honda
Garden Hose Adapter
Proper storage preparation is
essential for keeping your outboard
motor troublefree and looking good.
The following steps will help to keep
rust and corrosion from impairing
your outboard motor’s function and
appearance, and will make the engine
easier to start when you use the
- GARDEN
\ HOSE ADAPTER
outboard motor again.
Cleaning and Flushing WASH PLUG (flush plug)

Keep children andpets
Thoroughly clean and flush the 1 . Remove the wash plug and sealing away from thearea, and
outboard motor with fresh water after washer from theWASH plug hole stay clear of all moving
operation in dirty water or salt water. in the gear case. Be sure not to parts during thisprocedure.
remove the oil level plug from the
Touch up any damaged paint, and OIL LEVEL plug hole in the gear
coat areas that may rust with a light case. 2. Remove the sealing washer from
film of oil. Lubricate controls with a the wash plug and install the
silicone spray lubricant. sealing washer on the garden hose
adapter.
Cleaning
3. Install the garden hose adapter into
Wash the outsideof the outboard the WASH plug hole and connect
motor with clean, fresh water to a fresh water hose to the garden
remove mud, salt, seaweed, etc. hose adaptet.
73
STORAGE
4. Move the gearshift lever or control TAPE
lever to the N (neutral) position.
Flush the outboard motor in the
neutral position only.
5. Turn on the fresh water supply to

the garden hose adapter.
pciq
Running the outboard motor without
sufficient cooling water will damage
the water pump and overheat the COOLING SYSTEM INDICATOR
engine.
Damage caused by running the 6. Start the engine. Monitor the 8. Stop themotor and remove the
outboard motor without sufficient cooling system indicator. Stop the garden hose adapter.
cooling water is not covered by the engine if water does not come out
Distributor’s Limited Warranty. of the cooling system indicator and 9. Remove the sealing washer from
check the fresh water supply. If the garden hose adapter and install
the freshwater supply is the sealing washer on the wash
insufficient it may be necessary to Plug.
temporarily cover the threewater
intakes with duct tape. If tape was used to cover the three
water intakes in step 6, remove the
7. Allow the engine to run at idle for tape now.
at least 5 minutes to clean the
inside of the motor. 10.Install the wash plug into the gear
case securely.
74
STORAGE
Fuel The Distributor’s Limited Warranty

does not cover fuelsystem damage
Gasoline will oxidize and deteriorate or engineperformance problems Gasoline is highly
in storage. Old gasoline will cause resulting from neglected storage flammable and explosive.
hard starting, and it leaves gum preparation.
deposits that clog the fuelsystem. If You can be burned or
the gasoline in your fuel tank and You can avoid fuel deterioration seriously injured when
carburetor deteriorates during storage, problems by draining the fuel tank handling fuel.
you may need to have the carburetor and carburetors.
and other fuel system components Stop the engine and keep
serviced or replaced. 1. Disconnect the fuel hose from the heat, sparks, and flame
outboard motor. away.
The length of time that gasoline can Handle fuel only
be left in your fuel tank and 2. With the outboard motor in a outdoors.
carburetor without causing functional vertical position, place an Wipe up spills
problems will vary with such factors approved gasoline container below immediately.
as gasoline blend, your storage the fuel drain outlet, and use a
temperatures, and whether the fuel funnel to avoid spilling fuel.
tank is partially or completely filled.
The air in a partially filled fuel tank
promotes fuel deterioration. Very
warm storage temperatures accelerate
fuel deterioration. Fuel deterioration
problems may occur within a few
months, or even less if the gasoline
was not fresh when you filled the
fuel tank.
75
STORAGE
Engine Oil
I # 1 CARBURETOR 1. Change the engine oil and the oil
DRAIN SCREW filter (p. 59 ).
2. Remove the spark plugs (p. 65 ),

-#2 CARBURETOR and remove the clip fromthe
DRAIN SCREW engine or emergency stop switch.
3. Pour a tablespoon (5 - 10 cm3)of

-#3 CARBURETOR clean engine oil into each cylinder.
, DRAIN SCREW
DRAIN SCREW 4.Rotate the engine a few
DRAIN HOSE
revolutions to distribute the oil in
3. Pull the # 3 carburetor drain hose 6. After thoroughly draining the the cylinders.
outside of the motor pan. carburetors, tighten the drain
screws securely. 5. Reinstall the spark plugs (p. 66 ).
4.Loosen the drain screw of the # 3
carburetor and drain the carburetor. 7. Reinsall the drain hose back on the
Catch the draining gasoline in an # 3 carburetor.
approved gasoline container.
5. Drain the # 1 and # 2 carburetors

in the same manner using the # 3
carburetor drain hose.
76
STORAGE
STORAGE PRECAUTIONS If the outboard motor will be Cover the outboard motor to keep out
removed from the boat for storage, dust. Do not use sheet plastic as a
Select a well-ventilated storage area. we recommend storing it vertically dust cover. A nonporous cover will
If possible, avoid storage areas with by mounting it on a stand. trap moisture, promoting rust and
high humidity. corrosion.
If storing a container of gasoline, REMOVAL FROM STORAGE

such as the portable fuel tank
(optional equipment), store it away Check your outboard motor as
from any appliance that operates with described in the BEFORE
a flame, such as a furnace, water OPERATION chapter of this manual.
heater, or clothes dryer. Also avoid
any area with a sparkproducing
/
CASE PROTECTORS If the cylinders were coated with oil
electric motor, or where power tools during storage preparation, the
are operated. If it is necessary to store the outboard engine may smoke briefly at startup.
motor horizontally, drain the This is normal.
carburetors (p. 75 ), and drain the
engine oil (p. 59 ), before removing
the outboard motor from the boat.
Position the outboard motor with its

carburetor side down, andcushion it
with protective packing material.
77
TRANSPORTING
WITH OUTBOARD MOTOR WITH OUTBOARD MOTOR
INSTALLED ON BOAT REMOVED FROM BOAT
When trailering a boat with the Secure theoutboard motor in either
outboard motor attached, leave the the vertical or horizontal position
engine in the normal running position, shown on p. 77.
if possible, and tighten the steering
friction knob securely (p. 48 ).
If there is insufficient road clearance

in the normal running position, then
tilt the outboard motor and use a
motor support bar, or remove the
outboard motor from the boat. Refer
to the manufacturer’s instructions for
using a motor support bar.
MOTOR SUPPORT BAR

(commercially available)
7s
TAKING CARE OF UNEXPECTED PROBLEMS
ELECTRIC STARTER WILL Possible Cause Correction

NOT OPERATE
1. Check battery Battery connections loose or Clean and tighten battery

corroded. connections.
Battery discharged. Recharge battery.
I
~
2. Check fuse. Fuse burnt out. Replace fuse (p. 84 ).
3. Use emergency starting Starter malfunction, switch Replace orrepair faulty

procedure (p. 41 ), then take malfunction, or electrical problem components as necessary.
outboard motorto an authorized in the starting circuit.
Honda Marinedealer, or referto
the shop manual.
I
79
ENGINE WILL NOT START Possible Cause Correction
1. Check emergency stopswitch Clip not inserted in stop switch. Insert clip in stop switch.
clip.
2. Check control positions. Gearshift lever or control lever not Shift toneutral (p. 15 ).
in neutral position.
Choke OPEN(tiller-handle type). Pull choke knobto CLOSED

position, unless engine is warm (p.
14 ).
Throttle grip not in START Turn throttle grip to START
position (tiller-handle type). position (p. 37 ).
I
Choke and fastidle lever not Raise choke andfast idle lever,
raised (side-mount type). unless engine is warm (p. 40).
ENGINE WILL NOT START Possible Cause Correction

(continued)
3. Check fuel. Out of fuel. Refuel (p. 67 ).
Fuel vent closed (portable fuel Open fuel tank vent (p. 25 ).
tank).
Fuel hosenot primed. Squeeze priming bulb(p. 36 ).
Fuel pump filter orfuel tank filter Replace fuel filters (p. 68 ).
clogged.
Bad fuel; boat stored without Drain fuel tank and carburetors (p.
treating or draining gasoline, or 75 ). Refill with fresh gasoline (p.
refueled with bad gasoline. 67 ).
4. Remove and inspect spark plugs. Spark plugs faulty, fouled or Clean, gap or replace spark plugs
improperly gapped. (P. 65 1.
Spark plugs wet with fuel (flooded Dry and reinstall spark plugs. Start
engine). engine with choke andthrottle open.
5. Take outboard motorto an Carburetor malfunction, fuel pump Replace orrepair faulty
authorized Honda Marinedealer, failure, ignition malfunction, stuck components as necessary.
or refer to the shop manual. valves, etc.
81
HARD STARTING OR STALLS Possible Cause Correction

AFTER STARTING
1 . Check control positions. Choke OPEN(tiller-handle type). Pull choke knobto CLOSED
position, unless engineis warm (p.
14 ).
Throttle grip not in START Turn throttle grip to START (p.

position (tiller-handle type). 37 ).
Choke and fastidle lever not Raise choke andfast idle lever,
raised (side-mount type). unless engine is warm (p. 40).
~~
2. Check fuel. Fuel vent closed (portable fuel Open fuel tank vent (p. 25 ).
tank).
Fuel hose not primed. Squeeze priming bulb(p. 36 ).

Fuel pumpfilter or fueltank Replace fuel filters (p. 68 ).
clogged.
Bad fuel; boat stored without Drain fuel tank and carburetors (p.
treating or draining gasoline, or 75 ). Refill with fresh gasoline (p.
refueled with bad fuel. 67 ).
82
HARD STARTING OR STALLS

AFTER STARTING Possible Cause Correction
(continued)
3. Remove and inspect spark plugs. Spark plugs faulty, fouled or Clean, gap orreplace spark plugs
improperly gapped. (P. 65 >.
4. Take outboard motor to an Carburetor malfunction, fuel pump Replace or repair faulty
authorized Honda Marine dealer, failure, ignition malfunction, etc. components as necessary.
or refer to the shop manual.
ENGINE OVERHEATS Possible Cause Correction
1. Check water intake screens. Water intake screens clogged. Clean water intake screens.
2. Take outboard motor to an Faulty thermostat or water pump. Replace or repair faulty
authorized Honda Marine dealer, components as necessary.
or refer to the shop manual.
83
BATTERY WILL NOT 3. Remove and inspect the fuse. If a FUSE CASE
CHARGE AND ELECTRIC fuse is burnt out, install a LID
STARTER WILL NOT replacement fuse of the specified
OPERATE rating. The outboard motor is
supplied with spare fuse in the
The battery-charging circuit and the fuse holder.
electric starter relay circuit are
protected by the 15-ampere fuse.If DESIGNATED FUSE: 15A
the fuse burns out, the engine will
not charge the battery, andthe 1- ' SPARE 15A FUSE
electric starter will not operate. The Never use a fuse with a rating
engine can be started using the recoil greater than specified. Serious
starter or the emergency starter rope. damage to the electrical system
could result.
The ignition switch is protected by
the 15-ampere fuse.If the fuse burns
out, the enginewill not start or run.
BLOWN FUSE
Fuse Replacement 4. Reinstall the fuse case lid and the
engine cover.
1. With the engine stopped, remove
the engine cover. Before furtheroperation, try to
determine and correct theelectrical
2. Remove the fuse caselid. problem that caused the fuse to
bum out. An uncorrected electrical
problem may cause the fuse to
burn out again.
84
OIL PRESSURE INDICATOR If the throttle is closed suddenly after

LIGHT GOES OFF AND full throttle operation, engine speed
ENGINE SPEED IS LIMITED may drop below the specified idle
rpm, and that could activate the
engine protection system
momentarily.
If low oil pressure activates the

engine protection system, stop the
engine, check the engine oil level
(remote control type) (p. 58 ), and add oil if needed.
With the engine oil at the

OIL PRESSURE INDICATOR LIGHT If oil pressure becomes low, the recommended level, restart the
green indicator light will go off,and engine. If the lubrication system is
(tiller handle type)
the engineprotection system will OK, the green indicator light should
limit engine speed. If you are at come on within 30 seconds, and the
cruising speed, engine speed will engine will respond normally to
decrease gradually. throttle grip or control lever
operation.
Remote-control types are equipped
with a buzzer that sounds when the If the engine protection system
green indicator light goes off. remains activated after 30 seconds,
return to the nearest boat landing,
Low oil pressure may be the result of and have the outboard motor
a low engine oil level, or there may inspected by an authorized Honda
be aproblem with the engine marine dealer.
lubrication system.
85
OVERHEATING INDICATOR Engine overheating may be the result If water is flowing from the cooling
LIGHT COMES ON AND of clogged water intake screens, or system indicator, continue idling for
ENGINE SPEED IS LIMITED there may be a problem with the 30 seconds. If the cooling system is
cooling system thermostat or water OK, the red indicator light should go
Pump. off within 30 seconds, and the engine
will respond normally to throttle grip
If the engine is stopped after running or control lever operation.
at full throttle, and then restarted
soon afterward, that could activate If there is no water flowing from
the engine protection system the cooling system indicator, stop
momentarily. the engine, andtilt the outboard
motor to inspect the water intake
screens. If clogged, clean the water
intake screens, return the outboard
motor to therunning position,
If the engine overheats, the red restart the engine, and check the
indicator light will come on,and the cooling system indicator again.
engine protection system will limit
engine speed. If you are at cruising If there is still no water flowing
speed, enginespeed will decrease from the coolingsystem indicator,
gradually. or if the engineprotection system
COOLING SYSTEM INDICATOR remains activated after 30 seconds,
Remote-control types are equipped return to the nearest boat landing,
with a buzzer that sounds when the If overheating activates the engine and have the outboard motor
red indicator light comes on. protection system, idle the enginein inspected by an authorized Honda
neutral, and check the cooling system marine dealer.
indicator.
86
SUBMERGED MOTOR 3. Change the engine oil as described EMERGENCY STARTER ROPE
on p. 59. If there was water in the
A submerged outboard motor must engine crankcase, or if the used
be serviced immediately after it is engine oil showed signs of water
recovered from thewater in order to contamination, then a second
minimize corrosion. engine oil change should be
performed after running the engine
If there is a Hondamarine dearship for half an hour.
nearby, take themotor to the dealer
immediately. If you are far from a 4.Remove the spark plugs (p. 65 ),
dealership, proceed as follows: and remove the clip from the
emergency stop or engine switch.
1. Remove the engine cover,and
rinse the outboard motor with (Recoil starter type)
fresh water to remove salt water, Pull the recoil starter grip, rotate If the engine was running when it
sand, mud, etc. the flywheel a fewrevolutions to submerged, there may be
completely expel any water from mechanical damage, such as bent
2. Drain the carburetors as described the cylinders. connecting rods. If the engine
on p. 75. binds when cranked, do not
(Electric starter type) attempt to run the engine until it
Remove the flywheel cover has been repaired.
following the emergency starting
procedure (p. 41 ) and pull the
emergency starter rope, rotate the
flywheel afew revolutions to
completely expel any water from
the cylinders.
87
7. Attempt to start the engine.

piEq
When cranking the engine with If the engine fails to start, remove
an open ignition circuit (spark the spark plugs, clean and dry
plugs removed f rom the ignition them, then reinstall the spark plugs
circuit), remove the clip f rom and attempt to start the engine
the emergency or engine stop again.
switch to prevent possible
damage to the ignition system. If the engine starts, and no
mechanical damage is evident,
continue to run the enginefor a
half hour or longer. Be sure the
water level is at least two inches
above the antiventilation plate to
5. Pour a teaspoon of engine oil into avoid overheating and water pump
each spark plug hole, then pull the damage.
recoil starter grip several times to
lubricate the inside of the cylinders. 8. As soon as possible, take the
outboard motor to an authorized
6. Reinstall the spark plugs, and put Honda Marine dealer for
the emergency stop switch clip inspection and service.
into the switch.
88
TECHNICAL AND CONSUMER INFORMATION
TECHNICAL INFORMATION RIGHT STERN BRACKET STARTER MOTOR
Serial Number Locations

Record the product identification
number and engine serial numbers in
the space provided on this page. You
will need these numbers when
ordering parts, and when making
technical or warranty inquiries (p.
100 ).
PRODUCT IDENTIFICATION
NUMBER ENGINE SERIAL NUMBER
The product identification number is The engine serial number is

stamped on a plate attached to the stamped on the cylinder block
right stern bracket. under the starter motor which is
located in the front of the engine.
Product identification number:
Engine serial number:
89
Carburetor Modification for Even with carburetor modification,

High Altitude Operation engine horsepowerwill decrease
about 3.5% for each 1,000-foot (300-
At high altitude, the standard meter) increase in altitude. The effect
carburetor air-fuel mixture will be of altitude on horsepowerwill be
too rich. Performance will decrease, greater than this if no carburetor
and fuel consumption will increase. modification is made.
A very rich mixture will also foul the
spark plugs and cause hardstarting. pi7iG-i
When the carburetors have been
High altitude performance canbe modified for high altitude operation,
improved by specific modifications the air-fuel mixture will be too lean
to the carburetors. If you always f o r low altitude use. Operation at
operate your outboard motorat altitudes below 5,000feet (1,500
altitudes above 5,000 feet (1,500 meters) with modified carburetors
meters), have an authorized Honda may cause the engine to overheat
marine dealer perform this carburetor and result in serious engine damage.
modification. For use at low altitudes, have an
authorized Honda Marine dealer
return the carburetors to original
factory specifications.
90
Oxygenated Fuels The following are the EPA-approved damage metal, rubber, and plastic
percentages of oxygenates: parts of your fuel system.
Some conventional gasolines are
being blended with alcohol or an ETHANOL: ethyl or grain alcohol; If you notice any undesirable
ether compound. Thesegasolines are 10%by volume. operating symptoms, try another
collectively referred to as oxygenated service station, or switch to another
fuels. To meet clean air standards, You may use gasoline containing up brand of gasoline.
some areas of the United States and to 10% ethanol by volume. Gasoline
Canada use oxygenated fuels to help containing ethanol may be marketed Fuel system damage or performance
reduce emissions. under the name “Gasohol”. problems resulting from the use of an
oxygenated fuel containing more
If you use an oxygenated fuel, be MTBE: Methyl Tertiary Butyl Ether; than the percentages of oxygenates
sure it is unleaded and meets the 15% by volume. mentioned above are not covered
minimum octane rating requirement. under warranty.
You may use gasoline containing up
Before using an oxygenated fuel, try to 15% MTBE by volume.
to confirm the fuel’s contents. Some
states/provinces require this METHANOL: methyl or wood
information to be posted on the pump. alcohol; 5% by volume.
You may use gasoline containing up

to 5% methanol by volume, as long
as it also contains cosolvents and
corrosion inhibitors to protect the
fuel system. Gasoline containing
more than 5% methanol by volume
may cause starting and/or
performance problems. It may also
91
Emission Control System The U.S. and California Clean Tampering and Altering
Inff ormation Air Acts
Tampering with or altering the
Source of Emissions EPA and California regulations emission control system may increase
require all manufacturers to furnish emissions beyond the legal limit.
The combustion process produces written instructions describing the Among those acts that constitute
carbon monoxide, oxides of nitrogen, operation and maintenance of tampering are:
and hydrocarbons. Control of emission control systems.
hydrocarbons and oxidesof nitrogen Removal or alteration of any part
is very important because, under The following instructions and of the intake, fuel, orexhaust
certain conditions, they react to form procedures must be followed in order systems.
photochemical smog when subjected to keep the emissions from your
to sunlight. Carbon monoxide does Honda enginewithin the emission Alterations that would cause the
not react in the same way, but it is standards. engine to operate outsideits design
toxic. parameters.
Honda utilizes lean carburetor

settings and other systems to reduce
the emissions of carbon monoxide,
oxides of nitrogen, and hydrocarbons.
92
Problems That MayAffect Replacement Parts A manufacturer of an aftermarket

Emissions part assumes the responsibility that
The emission control systems on the part will not adversely affect
If you are aware of any of the your Honda engine were designed, emission performance. The
following symptoms, have your built, and certified to conform with manufacturer or rebuilder of the part
engine inspected and repaired by EPA and California emission must certify that use of the part will
your servicing dealer. regulations. We recommend the use not result in a failureof the engine to
of genuine Honda parts whenever comply with emission regulations.
0 Hard starting or stalling after you have maintenance done. These
starting. original-design replacement parts are Maintenance
manufactured to the samestandards
0 Rough idle. as the original parts, so you can be Follow the maintenance schedule on
confident of their performance. The p. 55. Remember that this schedule
0 Misfiring or backfiring under load. use of replacement parts that are not is based on the assumption that your
of the original design and quality machine will be used for its designed
0 Afterburning (backfiring). may impair the effectiveness of your purpose. Sustained high-load
emission control system. operation, or use in unusual
0 Black exhaust smoke or high fuel conditions, will require more
consumption. frequent service.
93
SUar Label The StarLabel means Cleaner Marine Engine

A Star label was applied to this This enginehas been certified as a:
outboard motor in accordance with
the requirements of the California
7
Air Resources Board.
0 w 0
The Symbolfor Cleaner Marine Engines:
Cleaner Air and Water- for healthier lifestyle and environment.
Better Fuel Economy- burns up to 30 - 40 percent less gas and oil than
conventional carbureted two-stroke engines, saving money and resources.
Longer Emission Warranty- protects consumer for worry free operation.

One Star Two Stars Three Stars

Low Emission Very Low Emission Ultra Low Emission
The one-star label identifies engines The two-star label identifies engines The three-star label identifies engines
that meet the Air Resources Board’s that meet the Air Resources Board’s that meet the Air Resources Board’s
2001 exhaust emission standards. 2004 exhaust emission standards. 2008 exhaust emissionstandards.
Engines meetingthese standards Engines meetingthese standards Engines meetingthese standards
have. 75% lower emissions than have 20% lower emissions than One have 65% lower emissions than One
conventional carbureted two-stroke Star-Low-Emission engines. Star-Low-Emission engines.
engines. These engines are equivalent
to the U.S. EPA’s 2006 standards for Cleaner Watercraft - Get the Facts
marine engines. 1-800-END-SMOG
www.arb.ca.gov
95
Specifications
MODEL BF25A CARB star label VERY LOW EMISSION
e Description BAJS Cooling system Water coolingwith thermostat
Type SH I LH I SHS I LHS Exhaust system Thru-hub
length
Overall 26.6 in (675 mrn) Spark
. plugs
. - DR7EA (NGK)
Overall width 15.0 in (380 mrn) X22ESR-U (DENSO)
Overall
height 46.9in I 51.8in I 46.9in I 51.8in Fuel pump Diaphragm type fuel pump
Fuel Automotive unleaded gasoline
(86 pump octane or higher)
Tank capacity 6.61 US gal (25.0 0, 5.50 Imp gal)
Gear change Forward-Neutral-Reverse (dog type)
Steering angle 40" right and left
Transom angle 5 stages(4°-80-120-160-200)
Tilt angle 3 stages adjustment(30°,45' and 75')
Tune U p
Spark plug gap 0.024-0.028 in See page 65
(0.60-0.70 mm)
Idle speed *
900 50 rprn See shop
manual
Valve clearance Intake: 0.12 iz 0.02 mrn See shop
(cold) Exhaust: 0.20 b 0.02 mrn manual
Other specifications No other adjustmentis needed
1.7 US qt (1.6 Q , 1.4 Imp qt)
Honda outboards are powerrated in accordance with N " A procedures andusing the ICOMIA standard28/23.
96
Specifications
labelstar
CARB VERY LOW EMISSION
Thru-hub
Spark plugs DR7EA (NGK)
Automotive unleaded gasoline

(86 pump octane or higher)
Tank capacity 6.61 US gal (25.0 Q , 5.50 Imp gal)
Gear change Forward-Neutral-Reverse (dog type)
Steering angle 40" right andleft
Transom angle 5 stages (4°-80-120-160-200)
Tilt angle 3 stages adjustment(30". 45" and 75')
Remote control Motor-mounted
steering system
Tune U p
Spark plug gap 0.024-0.028 in See page 65
Ignition system C.D.1 (0.60-0.70 rnm)
Lubrication system Trochoid pump pressure lubrication Idle speed 900 & 50 rpm See shop
Specified oil Engine: API standard (SG or SH) manual
SAE 1OW-30 Valve clearance Intake: 0.12 t 0.02 m m See shop
Gear case:API standard (GL4/5) (cold) Exhaust: 0.20 t 0.02 rnrn manual
Other specifications No other adiustmentis needed
1.7USqt(1.6Q,1.4Impqt)
Gear case:
Honda outboards are power rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.
97
Specifications
MODEL BF30A CARE3 star label VERY LOW EMISSION
Cooling system Water cooling with thermostat
Exhaust system Thru-hub
26.6 in (675 mm) Spark plugs DR7EA (NGK)
width
Overall 15.0 in (380 mm)
height
Overall - 46.9 i n 51.8 i n
(1,315 rnm)
(1,190 mm)
Transom height 17.0 i n 21.7 i n
(431 mm) (552 mm)
Weight 147.7Ibs 152.1 Ibs I 158.7Ibs
Tune Up
I Spark
gap
plug
- . - - . 0.024-0.028 in I See page
65 1
(0.60-0.70 mm)
Idle speed 900 * 50 rpm I See shop
manual
Valve clearance Intake: 0.12* 0.02 mm See shop
(cold) 0.20 f 0.02 mm manualExhaust:
Other specifications No other adiustment is needed
SAE 1OW-30
Gear case:API standard (GL4/5)SAE 90
t (1.6 0, 1.4 Imp qt)
Honda outboards arepower rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.
98
Specifications
MODEL BF3OA CARB star label VERY LOW EMISSION
Description Code BAWS Cooling system Water cooling with thermostat
Type SRS LRS Exhaust system Thru-hub
Overall length 25.2 in (640 mm) Spark plugs DR7EA (NGK)
Overall width 14.8 in (375 mm) X22ESR-U (DENSO)
Overall height 46.9 in (1,190 m m ) 51.8 in (1,315 mm) Fuel pump Diaphragm type fuel pump
Transom height 17.0 i n (431 mrn) 21.7 i n (552 m m ) Fuel Automotive unleaded gasoline
Weight 152.1 Ibs (69.0 kg) 156.5 Ibs (71.0 kg) (86 pump octane or higher)
Rated power 22.1 kW (30 PS) Tank
capacity 6.61 US gal (25.0 Q , 5.50 Imp gal)
Full throttle range 5,700-6,200 rprn Forward-Neutral-Reverse (do
Engine type 4 strokeOHC in-line 3 cylinder,
water-cooled
Displacement 30.4 cu-in (499 cm3)
Spark plug gap 0.024-0.028 i n (0.60-0.70 rnm)control Remote Motor-mounted
Starter system Electric starter
Ignition system C.D.1
Lubrication system Trochoid pump pressure lubrication %ne Up
Specified oil Engine: API standard (SG orSH) Spark plug gap 0.024-0.028 i n See page 65
SAE 1OW-30 (0.60-0.70 mm)
Gear case:API standard (GL4/5) Idle speed 900 k 50 rpm See shop
SAE 90 outboard gear oil manual
Oil capacity Engine: Valve clearance Intake: 0.12 t 0.02 m m See shop
1.7USqt(1.6Q,1.4Impqt) (cold) Exhaust: 0.20 f 0.02 m m manual
Gear case: Other specifications No other adjustment is needed
0.31 US qt (0.29 Q ,0.26 Imp qt)
Honda outboardsare power rated in accordance with NMMA procedures andusing the ICOMIA standard 28/23.
99
CONSUMER INFORMATION Customer Service Information Or telephone: (770) 497-6400
Honda Publications Honda Marine dealership personnel When you write or call, please give
are trained professionals. They us this information:
These publications will give you should be able toanswer any
additional information for question you may have. If you Model and serial numbers (p. 89 )
maintaining and repairing your encounter aproblem that your dealer
outboard motor. You may order them does not solve to your satisfaction, Name of the dealer whosold the
from your Honda marine dealer. please discuss it with the dealership’s outboard motor to you
management. The Service Manager
Shop Manual or General Manager can help. Almost Name and address of the dealer
all problems are solved in this way. who servicesyour outboard motor
This manual covers complete
maintenance and overhaul procedures. If you are dissatisfied with the Date of purchase
It is intended to be used by a skilled decision made by the dealership’s
technician. management, contact the Honda Your name, address, and telephone
Marine Customer Relations Office. number
Parts Catalog You can write:
A detailed description of the
This manual provides complete, American Honda Motor Co., Inc. problem
illustrated parts lists. Marine Division
Customer Relations Office
4900 Marconi Drive
Alpharetta, Georgia 30005-8847
100
WIRING DIAGRAM
IQNlTlON PULSE GENERATOR
TILLER HANDLE TYPE (with recoil starter)
1
W !
.......................................
J-
...............................................................................................................
L
....................................................................... .
101
WIRING DIAGRAM
R””
F
#=- d
IIIII
IIIII
102
WIRING DIAGRAM
CONTROL
REMOTE TYPE R W E U n
IGNITION PULSEGENERATOR
P"W\ ,
103
INDEX
Anode ............................................................................. 24 Electric Starter Button .................................................... 16

Replacement ............................................................... 71 EMERGENCY STARTING.......................................... 41
ARE YOU READY TO GET UNDER WAY? .......... 31 Emission Control System Information.......................... 92
ATTACHMENT ............................................................ 27 Engine
Cover
BATTERY CONNECTIONS........................................ 28 Latch ....................................................................... 20
BATTERY WILL NOT CHARGE AND REMOVAL AND INSTALLATION.................... 58
ELECTRIC STARTER WILL NOT Oil
OPERATE .............................................................. 84 Change .................................................................... 59
BEFORE OPERATION................................................. 31 Level Check ........................................................... 58
BOAT TRANSOM REQUIREMENTS........................ 26 Recommendations .................................................. 60
BREAK-IN PROCEDURE............................................ 33 ENGINE OVERHEATS................................................ 83
Engine Stop Switch and Switch Clip ............................. 14
Carburetor Modificationfor High Altitude ENGINE WILL NOT START....................................... 80
Operation .................................................................... 90
Choke/Fast Idle Lever .................................................... 18
Choke Knob.................................................................... 14
COMMON CONTROLS............................................... 20
COMPONENT AND CONTROL.LOCATIONS......... 11
CONSUMER INFORMATION .................................. 100
CONTROLS ................................................................... 14
CONTROLS AND FEATURE IDENTIFICATION
CODES ....................................................................... 10
CONTROLS AND FEATURES ................................... 10
Cooling SystemIndicator ............................................... 23
CRUISING ..................................................................... 49
Customer Service Information ..................................... 100
104
INDEX
Fuel Ignition Switch ............................................................... 16

Cap Vent Knob........................................................... 25 IMPORTANT SAFETY INFORMATION..................... 7
Gauge.......................................................................... 22 INDEX.......................................................................... 104
HOSE CONNECTIONS............................................ 35 INDICATORS ................................................................ 22
PRIMING ................................................................... 36 INSTALLATION ........................................................... 26
Priming Bulb.............................................................. 25 INSTALLATION POSITION....................................... 26
Pump Filter Inspection and Replacement.................. 68 INSTRUMENTS ............................................................ 22
RECOMMENDATIONS ........................................... 68 IS YOUR OUTBOARD MOTOR
READY TO GO ? ..................................................... 31
Gear
Oil Lubrication Points .......................................................... 63
Change .................................................................... 60
Level Check ........................................................... 61 MAINTENANCE SAFETY.......................................... 53
GEARSHIFTING AND THROTTLE OPERATION ... 46 MAINTENANCE SCHEDULE.................................... 55
H Type ........................................................................ 46 Manual Choke Knob...................................................... 20
R Type ........................................................................ 47 MOORING. BEACHING. LAUNCHING.................... 51
Gearshift Lever............................................................... 15
Gearshift/Trottle Control Lever ..................................... 18
HARD STARTING OR STALLS AFTER

STARTING ................................................................ 82
105
INDEX
Oil Pressure Indicator..................................................... 22 SAFE OPERATING PRECAUTIONS......................... 33

OIL PRESSURE INDICATOR LIGHT GOES SAFETY LABEL LOCATIONS ..................................... 9
OFF AND ENGINE SPEED IS LIMITED ............... 85 Serial Number Locations................................................ 89
OPERATION ................................................................. 33 SERVICING YOUR OUTBOARD MOTOR ............... 52
OTHER FEATURES ..................................................... 24 SHALLOW WATER OPERATION ............................. 50
OUTBOARD MOTOR SAFETY .................................... 7 Spark Plug Service......................................................... 65
Overheating Indicator..................................................... 23 Specifications................................................................. 96
OVERHEATING INDICATOR LIGHT COMES Star Label ....................................................................... 94
ON AND ENGINE SPEED IS LIMITED ................. 86 STARTING THE ENGINE........................................... 36
Overrev Limiter.............................................................. 24 H Type ........................................................................ 36
Oxygenated Fuels........................................................... 9I R Type........................................................................ 39
STEERING..................................................................... 48
Portable Fuel Tank................................................... 24, 35 H Type........................................................................ 48
Portable Fuel Tank and Filter Cleaning ......................... 70 R Type ........................................................................ 48
POWER REQUIREMENTS.......................................... 26 Steering Friction Bolt..................................................... 21
Propeller Replacement................................................... 72 STOPPING THE ENGINE ............................................ 44
Emergency Engine Stopping ...................................... 44
Recoil Starter Grip.......................................................... 16 Normal Engine Stopping............................................ 44
Recoil Starter Rope Inspection ....................................... 71 STORAGE ..................................................................... 73
REFUELING.................................................................. 67 STORAGE PRECAUTIONS......................................... 77
REMOVAL FROM STORAGE.................................... 77 STORAGE PREPARATION......................................... 73
Cleaning and Flushing ............................................... 73
Engine Oil .................................................................. 76
Fuel ............................................................................. 75
SUBMERGED MOTOR................................................ 87
Switch Clip and Emergency Stop Switch...................... 17
106
INDEX
~
TAKING CAREOF UNEXPECTED PROBLEMS..... 79 WIRING DIAGRAMS ................................................ 101

TECHNICAL AND CONSUMER INFORMATION ... 89
TECHNICAL INFORMATION.................................... 89
THE IMPORTANCEOF MAINTENANCE ................ 52
Throttle Friction Knob ................................................... 15
Throttle Grip ................................................................... 15
Tilt Lever ........................................................................ 22
TOOL KIT AND EMERGENCY STARTER ROPE ... 54
Transom Angle Adjusting Rod ...................................... 20
TRANSOM ANGLE ADJUSTMENT.......................... 34
TRANSPORTING ......................................................... 78
WITH OUTBOARD MOTOR INSTALLED
ON BOAT.............................................................. 78
WITH OUTBOARD MOTOR REMOVED
FROM BOAT ........................................................ 78
Trim Tab......................................................................... 21
TRIM TAB ADJUSTMENT......................................... 57
107
HONDA
The Powerof Dreams
31ZV7615 AH @ @ (HC) 1000.2001.05

00x31-ZV7-6150 Printed in Japan

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HONDA BF25Al3OA

mmRinE Owner's Manual

@ 2001 Honda Motor Co., Ltd. -All Rights Reserved 2002

symbol. That information 02001 Honda Motor Co., Ltd. All

Instructions - how to use this outboard motor correctly and safely.

OUTBOARD MOTOR SAFETY.................................... 7 GearshiftIThrottle Control Lever........................... 18

INSTALLATION ........................................................... 26 STARTING THE ENGINE....................................... 36

SERVICING YOUR OUTBOARD MOTOR............... 52 STORAGE ..................................................................... 73

TAKING CAREOF UNEXPECTED PROBLEMS..... 79 TECHNICAL AND CONSUMER INFORMATION ... 89

Remove any portable fuel tank

Refuel carefully to avoid spilling

After refueling, tighten the filler

Refer to this chart for an explanation

BF25AlBF30A are provided with the 0 According to Shaft Length (Example)

COMPONENT AND CONTROL LOCATIONS

EXHAUST PORT STOP SWITCH

Fuel Tank (optional equipment)

CONTROLS The engine stop switch has controls Choke Knob

When used as described, the engine CHOKE KNOB

A spare emergency stop switch clip is The CLOSEDposition enriches the

Throttle Grip Throttle Friction Knob Gearshift Lever

THROTTLE OPENING INDICATOR

Ignition Switch (side-mount

The control lever automatically locks

The gearshifdthrottle control lever

A friction adjuster near the base of

Less friction allows easier control

A manual choke knob is provided on

The engine cover latch fastens the

Trim Tab Steering Friction Bolt

LEVER FUEL GAUGE

To tilt, move the lever to the TILT

OIL PRESSURE INDICATOR LIGHT

Remote controls are also equipped

Low oil pressure indicates that the COOLING SYSTEM INDICATOR

The overrev limiter may be activated

Fuel Cap Vent Knob Fuel Priming Bulb

VENT KNOB OUTLET END

' INLET END

Install the outboard motor onthe Type: Motor Transom Height

Plug and Receptacle Battery Terminals

Replace any damaged parts.

Check that all fasteners are in

For your safety, avoid starting or Next 45 minutes: Next 8 hours:

To adjust, first tilt the outboard

TO LOCK LOCKED POSITION

Before use, open the fuel tank vent

Do not squeeze thepriming bulb

GEARSHIFT LEVER POINTER

STARTER GRIP Electric starter 6. If the choke knob was pulled to

Pushing the electric starter button If the indicators show any

R Type The enginewill not start or run,

For panel-mount or top-mount The emergency stop switch clip

2. Set the control lever in the N

The engine will not start if the F

1. Put the emergency stop switch clip

Using the electric starter f or more

Turning the ignition switch key to

During the warm-up period,