HONDA BF50A User Manual

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The engine exhaust from 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.
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INTRODUCTION

Congratulations on your selection of a Honda outboard motor. We are certain you will be pleased with your purchase of one of the finest outboard motors on the market.
We want to help you get the best results from your new outboard motor and to operate it safely. This manual contains information on how to do that; please read it carefully.
As you read this manual you will find information preceded by a
symbol. That information is intended to help you avoid damage to your outboard motor, other property, or the environment.
We suggest you read the warranty policy to fully understand its coverage and your responsibilities of ownership.
When your outboard motor needs scheduled maintenance, keep in mind that your Honda marine dealer is specially trained in servicing Honda outboard motors. Your Honda marine dealer is dedicated to your satisfaction and will be pleased to answer your questions and concerns.
Best Wishes, Honda Motor Co., Ltd.
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INTRODUCTION

A FEW WORDS ABOUT SAFETY

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

...................................OUTBOARD MOTOR SAFETY . 7
................................SAFETY LABEL LOCATIONS . 9
..................................CONTROLS AND FEATURES . 10
CONTROL AND FEATURE
................................IDENTIFICATION CODES . 10
..............................................................CONTROLS . 16
LH and LHT Types (long tiller handle)
......................................................Ignition Switch . 16
..........................................................Throttle Grip . 17
.....................................Throttle Friction Adjuster . 18
.....................................................Gearshift Lever . 18
.....................................Steering Friction Adjuster . 18
.............................Tilt Lever (gas assist/LH type) . 19
LRT and XRT Types (remote control)
........................Ignition Switch (side-mount type) . 19
Emergency Stop Switch and Switch Clip
..............................................(side-mount type) . 20
.........................Fast Idle Lever (side-mount type) . 21
Gearshift/Throttle Control Lever
..............................................(side-mount type) . 21
................IMPORTANT SAFETY INFORMATION . 7
....COMPONENT AND CONTROL LOCATIONS . 11
.............Emergency Stop Switch and Switch Clip . 16
.................................................Common Controls . 23
...........Power Trim/Tilt Switch (side-mount type) . 23
...Power Tilt Switch (LHT, LRT and XRT types) . 23
Manual Relief Valve
.............................(LHT, LRT and XRT types) . 24
.....................................................Tilt Lock Lever . 24
...........................................Engine Cover Latches . 24
.............................Transom Angle Adjusting Rod . 25
................................................................Trim Tab . 25
.......................................................INSTRUMENTS . 26
.........................Trim Meter (optional equipment) . 26
.........................Tachometer (optional equipment) . 26
.........................Fuel Gauge (optional equipment) . 26
...........................................................INDICATORS . 27
............................................Oil Pressure Indicator . 27
.................................................Overheat Indicator . 28
.....................................Cooling System Indicator . 29
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CONTENTS
................................................OTHER FEATURES . 29
.....................................................Overrev Limiter . 29
...................................................................Anodes . 30
.................................................Fuel Priming Bulb . 31
................................................BEFORE OPERATION . 32
IS YOUR OUTBOARD MOTOR
..................................................READY TO GO? . 32
................................................................OPERATION . 34
.......................................BREAK-IN PROCEDURE . 34
................................FUEL HOSE CONNECTIONS . 36
.......................................................FUEL PRIMING . 37
.............Portable Fuel Tank (optional equipment) . 30
.Fuel Filler Cap Vent Knob (optional equipment) . 31
........ARE YOU READY TO GET UNDER WAY? . 32
....................SAFE OPERATING PRECAUTIONS . 34
.....................TRANSOM ANGLE ADJUSTMENT . 35
....PORTABLE FUEL TANK (optional equipment) . 36
......................................STARTING THE ENGINE . 37
................LH and LHT Types (long tiller handle) . 37
.................LRT and XRT Types (remote control) . 39
.....................................EMERGENCY STARTING . 42
.......................................STOPPING THE ENGINE . 45
................................Emergency Engine Stopping . 45
.......................................Normal Engine Stopping . 45
GEARSHIFTING AND
..............................THROTTLE OPERATION . 47
................LH and LHT Types (long tiller handle) . 47
.................LRT and XRT Types (remote control) . 48
...............................................................STEERING . 49
................LH and LHT Types (long tiller handle) . 49
.....................................Steering Friction Adjuster . 49
.................LRT and XRT Types (remote control) . 49
................................................................CRUISING . 50
................................................................TRIM TAB . 52
........................SHALLOW WATER OPERATION . 52
...............MOORING, BEACHING, LAUNCHING . 54
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CONTENTS
..............SERVICING YOUR OUTBOARD MOTOR . 56
...........THE IMPORTANCE OF MAINTENANCE . 56
.....................................MAINTENANCE SAFETY . 57
SPARE EMERGENCY STOP SWITCH CLIP
..............AND EMERGENCY STARTER ROPE . 58
..............................TOOL KIT (optional equipment) . 58
...............................MAINTENANCE SCHEDULE . 59
....................................TRIM TAB ADJUSTMENT . 61
....................................MANUAL RELIEF VALVE . 62
ENGINE COVER REMOVAL AND
.............................................INSTALLATION . 62
........................................Engine Oil Level Check . 63
................................................Engine Oil Change . 64
..............................Engine Oil Recommendations . 66
.................................................Lubrication Points . 67
................................................Spark Plug Service . 68
.............................................................REFUELING . 70
...............................FUEL RECOMMENDATIONS . 71
...............Fuel Filter Inspection and Replacement . 72
Portable Fuel Tank and Filter Cleaning
.........................................(optional equipment) . 74
..............................................Anode Replacement . 75
..........................................Propeller Replacement . 76
....................................................................STORAGE . 77
...................................STORAGE PREPARATION . 77
..........................................Cleaning and Flushing . 77
........................................................................Fuel . 79
.............................................................Engine Oil . 81
...................................STORAGE PRECAUTIONS . 82
...............................REMOVAL FROM STORAGE . 82
........................................................TRANSPORTING . 83
WITH OUTBOARD MOTOR INSTALLED
.............................................................ON BOAT . 83
WITH OUTBOARD MOTOR REMOVED
.......................................................FROM BOAT . 83
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CONTENTS
TAKING CARE OF UNEXPECTED
..........................................................PROBLEMS . 84
..................................ENGINE WILL NOT START . 85
HARD STARTING OR STALLS AFTER
...........................................................STARTING . 87
...........................................ENGINE OVERHEATS . 88
BATTERY WILL NOT CHARGE AND
ELECTRIC STARTER WILL NOT
.........................................................OPERATE . 89
.................................................Fuse Replacement . 89
OIL PRESSURE INDICATOR LIGHT GOES OFF
...................AND ENGINE SPEED IS LIMITED . 90
OVERHEAT INDICATOR LIGHT COMES
............ON AND ENGINE SPEED IS LIMITED . 91
..........................................SUBMERGED MOTOR . 92
.....ELECTRIC STARTER WILL NOT OPERATE . 84
...............................TECHNICAL INFORMATION . 94
......................................Serial Number Locations . 94
Carburetor Modification for High Altitude
...........................................................Operation . 95
...................................................................Battery . 95
..................................................Oxygenated Fuels . 96
.................Emission Control System Information . 97
..............................................................Star Label . 99
......................................................Specifications . 101
.............................CONSUMER INFORMATION . 103
.............................................Honda publications . 103
............................Customer Service Information . 103
.........................................................................INDEX . 114
........................WIRING DIAGRAMS . Inside Back Cover
............Distributor’s Limited Warranty 2006 . 106
...................Emission Control System Warranty . 110
..TECHNICAL AND CONSUMER INFORMATION . 94
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OUTBOARD MOTOR SAFETY

IMPORTANT SAFETY INFORMATION

The Honda BF40A and BF50A outboard motors are designed for use with boats that have a suitable manufacturer’s power recommendation. Other uses can result in injury to the operator or damage to the outboard motor and other property.
Most accidents can be prevented if you follow all instructions in this manual and on the outboard motor. The most common hazards are discussed below, along with the best way to protect yourself and others.
Operator Responsibility
It is the operator’s responsibility to provide the necessary safeguards to protect people and property. Know how to stop the engine quickly in case of emergency. Understand the use of all controls.
Stop the engine immediately if anyone falls overboard, and do not run the engine while the boat is near anyone in the water.
Always stop the engine if you must leave the controls for any reason.
Attach the emergency stop switch lanyard securely to the operator.
Always wear a PFD (Personal Flotation Device) while on the boat.
Familiarize yourself with all laws and regulations relating to boating and the use of outboard motors.
Be sure that anyone who operates the outboard motor receives proper instruction.
Be sure the outboard motor is properly mounted on the boat.
Do not remove the engine cover while the engine is running.
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OUTBOARD MOTOR SAFETY
Carbon Monoxide HazardRefuel With Care
Gasoline is extremely flammable, and gasoline vapor can explode. Refuel outdoors, in a well­ventilated area, with the engine stopped. Never smoke near 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.
Exhaust gas contains poisonous carbon monoxide. Avoid inhalation of exhaust gas. Never run the engine in a closed garage or confined area.
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SAFETY LABEL LOCATIONS

OUTBOARD MOTOR SAFETY
(LH type)
The labels shown here contain important safety information. Please read them carefully. These labels are considered permanent parts of your outboard motor. If a label comes off or becomes hard to read, contact an authorized Honda marine dealer for a replacement.
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CONTROLS AND FEATURES

CONTROL AND FEATURE IDENTIFICATION CODES
Model
Type
Shaft Length
Long Tiller Handle
Remote Control
Gas Assist Tilt
Power Trim/Tilt
Tachometer (optional equipment)
Trim Meter (optional equipment)
Refer to this chart for an explanation of the Type Codes used in this manual to identify control and feature applications.
TYPE CODE (Example)
L
RT
T=Power Trim/Tilt H=Long Tiller Handle R=Remote Control
L=Long Shaft X=Extra Long Shaft
L
X
BF40A BF50A
XRTLRTLHTLRTLHTLH
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COMPONENT AND CONTROL LOCATIONS LH and LHT Types (long tiller handle)
FUEL HOSE CONNECTOR
CONTROLS AND FEATURES
OIL FILLER CAP
LONG TILLER HANDLE
STERN BRACKET
TRANSOM ANGLE ADJUSTING ROD
GEAR OIL LEVEL CHECK PLUG
WASH PLUG (Flush plug)
GEAR OIL DRAIN PLUG
ENGINE COVER
POWER TILT SWITCH (LHT type)
ANTIVENTILATION PLATE
TRIM TAB (anode)
EXHAUST PORT
PROPELLER (optional equipment)
OIL LEVEL DIPSTICK
COOLING SYSTEM INDICATOR
ENGINE OIL DRAIN PLUG COVER
TILT LOCK LEVER
TILT LEVER (LH type)
MANUAL RELIEF VALVE (LHT Type)
WATER INTAKE
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CONTROLS AND FEATURES
GEARSHIFT LEVER
THROTTLE FRICTION ADJUSTER
POWER TRIM/TILT SWITCH (LHT type)
THROTTLE GRIP
OIL PRESSURE INDICATOR LIGHT
OVERHEAT INDICATOR LIGHT
IGNITION SWITCH
SWITCH CLIP
EMERGENCY STOP SWITCH
LANYARD
STEERING FRICTION ADJUSTER
IGNITION SWITCH KEY
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LRT and XRT Types (remote control)
CONTROLS AND FEATURES
FUEL HOSE CONNECTOR
STEERING PLATE
TRANSOM ANGLE ADJUSTING ROD
GEAR OIL LEVEL CHECK PLUG
WASH PLUG (Flush plug)
ENGINE COVER
GEAR OIL DRAIN PLUG
POWER TILT SWITCH
COOLING SYSTEM INDICATOR
ENGINE OIL DRAIN PLUG COVER
TRIM TAB (anode)
EXHAUST PORT
PROPELLER (optional equipment)
OIL FILLER CAP
OIL LEVEL DIPSTICK
TILT LOCK LEVER
STERN BRACKET
MANUAL RELIEF VALVE
ANTIVENTILATION PLATE
WATER INTAKE
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CONTROLS AND FEATURES
Remote Control box (side-mount type/optional equipment)
GEARSHIFT/THROTTLE
POWER TRIM/TILT SWITCH
SPARE SWITCH CLIP
CONTROL LEVER
NEUTRAL RELEASE LEVER
OIL PRESSURE INDICATOR LIGHT
OVERHEAT INDICATOR LIGHT
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BUZZER (inside of the box)
IGNITION SWITCH
LANYARD
THROTTLE FRICTION ADJUSTER
FAST IDLE LEVER
IGNITION SWITCH KEY
EMERGENCY STOP SWITCH
SWITCH CLIP
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CONTROLS AND FEATURES
Fuel Tank (optional equipment)
FUEL TANK
PRIMING BULB
FUEL GAUGE
FUEL HOSE
FUEL HOSE CONNECTOR (female)
Tachometer
[optional equipment (LHT, LRT and XRT types)]
VENT KNOB
FUEL FILLER CAP
Trim Meter
[optional equipment (LHT, LRT and XRT types)]
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CONTROLS AND FEATURES

CONTROLS

LH and LHT Types (long tiller handle)
Ignition Switch
IGNITION SWITCH
ON
START
OFF
The ignition switch controls the ignition system and starter motor.
Turning the ignition switch key to the START position operates the starter motor. The key automatically returns to the ON position when released from the START position.
The ignition switch can be used to start the engine only when the gearshift lever is in the N (neutral) position (p. ), and the switch clip
38
is in the emergency stop switch.
Turning the ignition switch to the OFF position stops the engine.
Emergency Stop Switch and Switch Clip
EMERGENCY STOP SWITCH
LANYARD
SWITCH CLIP
SWITCH CLIP
LANYARD
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CONTROLS AND FEATURES
The switch clip must be inserted in the engine stop switch in order for the engine to start and run. The lanyard should be attached to the operator’s PFD (Personal Flotation Device) or worn around the wrist as shown.
When used as described, the emergency stop switch and lanyard system stops the engine if the operator falls away from the controls.
A spare switch clip is supplied with the motor (LH and LHT types).
Throttle Grip
THROTTLE GRIP
THROTTLE INDEX MARK
INCREASE
The throttle grip controls engine speed.
An index mark on the tiller arm shows throttle position and is helpf ul for setting the throttle correctly when starting (p. ).
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CONTROLS AND FEATURES
Gearshif t LeverThrottle Friction Adjuster Steering Friction Adjuster
THROTTLE FRICTION ADJUSTER
FIX
RELEASE
THROTTLE GRIP
The throttle friction adjuster adjusts resistance to throttle grip rotation.
Turn the adjuster clockwise to increase friction for holding a throttle setting while cruising.
Turn the adjuster counterclockwise to decrease friction for easy throttle grip rotation.
N (neutral)
F (forward)
GEARSHIFT LEVER
R (reverse)
The gearshift lever is used to select F (forward), N (neutral), or R (reverse) gears.
The engine can be started with the gearshift lever in the N (neutral) position only.
STEERING FRICTION ADJUSTER
LOCK
FREE
The steering friction adjuster adjusts steering resistance.
Less friction allows the outboard motor to turn more easily. More friction helps to hold steady course while cruising or to prevent the outboard motor from swinging while trailering the boat.
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CONTROLS AND FEATURES
Tilt Lever (gas assist/LH type)
TTIILLTT
RRUUNN ((LLOOCCKK))
TILT LEVER
Moving the tilt lever to the TILT position allows the motor to be tilted and moving the tilt lever to the RUN (LOCK) position locks the motor in the desired position. Use the tilt lever to temporarily tilt the motor when the boat is operating in shallow water, or mooring in shallow water. The tilt lever must be in the RUN (LOCK) position before operating the motor or the motor could tilt up when operatinginreverse.
LRT and XRT Types (remote control/optional equipment)
For panel mount or top mount remote control information, refer to the instructions provided with the remote control equipment.
Ignition Switch (side-mount type)
OONN
OOFFFF
IGNITION SWITCH
EMERGENCY STOP SWITCH
SWITCH CLIP
SSTTAARRTT
The ignition switch controls the ignition system and starter motor.
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CONTROLS AND FEATURES
Turning the ignition switch key to the START position operates the starter motor. The key automatically returns to the ON position when released from the START position.
Emergency Stop Switch and Switch Clip (side-mount type)
EMERGENCY STOP SWITCH
The switch clip must be inserted in the emergency stop switch in order for the engine to start and run. The lanyard must be attached to the operator’s PFD (Personal Flotation Device) or worn around the wrist as
The ignition switch can be used to
shown. start the engine only when the gearshift lever is in the N (neutral) position (p. ), and the switch clip
40
is in the emergency stop switch.
When used as described, the
emergency stop switch and lanyard
system stops the engine if the
operator falls away from the controls. Turning the ignition switch to the OFF position stops the engine. A spare switch clip is stored in a slot
LANYARD
SWITCH CLIP
LANYARD
SWITCH CLIP
in the control housing.
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SPARE SWITCH CLIP
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CONTROLS AND FEATURES
Fast Idle Lever (side-mount type)
N (neutral)
GEARSHIFT/THROTTLE CONTROL LEVER
The fast idle lever is used to set idle speed during warm-up.
The lever will not move unless the gearshift/throttle control lever is in the N (neutral) position. The fast idle lever must be in it’s lowest position for you to move the gearshift/throttle control lever out of neutral.
FAST IDLE
START
FAST IDLE LEVER
Leave the fast idle lever in the START position to provide a rich fuel mixture for starting a cold engine.
Lift the fast idle lever to accelerate the warm up of a cold engine after starting and to start a warm engine.
Gearshift/Throttle Control
Lever
The control lever automatically locks
itself in the N (neutral) position. To
move the lever out of the N (neutral)
position, you must squeeze the
neutral release lever on the underside
of the lever handle.
(side-mount type)
GEARSHIFT/THROTTLE CONTROL LEVER
NEUTRAL RELEASE LEVER
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CONTROLS AND FEATURES
The gearshift/throttle control lever controls engine speed and selects F (forward), N (neutral), or R (reverse) gears.
Moving the control lever 30° from N (neutral) selects the gear, and further movement increases engine speed.
GEARSHIFT/THROTTLE CONTROL LEVER
N (neutral)
A friction adjuster near the base of the control lever adjusts the operating resistance of the control lever (p. ).
48
Less friction allows easier control lever movement. More friction helps to hold a steady throttle setting while cruising.
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R (reverse)F(forward)
EENNGGIINNEE SSPPEEEEDD
EENNGGIINNEE SSPPEEEEDD
HHIIGGHH
HIGH
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CONTROLS AND FEATURES

Common Controls

Power Trim/Tilt Switch [LRT and XRT types (side­mount type)]
CONTROL LEVER
Press UP to trim or tilt the motor up.
Press DN to trim or tilt the motor down.
POWER TRIM/TILT SWITCH
(LHT type)
POWER TRIM/TILT SWITCH
PPrreessss UUPP ttoo ttrriimm oorr ttiilltt tthhee mmoottoorr uupp..
PPrreessss DDNN ttoo ttrriimm oorr ttiilltt tthhee mmoottoorr ddoowwnn..
The power trim/tilt switch is located on the control lever or the tiller handle. It is a rocker switch with UP and DN (down) positions for changing the angle of the outboard motor.
You can use the power trim/tilt switch anytime without turning the ignition switch is ON, whether the boat is underway or stopped.
Trim the outboard motor to obtain the best performance and stability (p. ).
50
Tilt the outboard motor for shallow water operation, beaching, launching, or mooring.
Power Tilt Switch
(LHT, LRT and XRT types)
POWER TILT SWITCH
The power tilt switch is located on
the engine pan. It is a rocker switch
with UP and DN (down) positions
for changing the angle of the
outboard motor.
The power tilt switch will operate
without turning the ignition switch
ON.
This switch is used with the engine
stopped to raise the outboard motor
for mooring, trailering or
maintenance.
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CONTROLS AND FEATURES
Manual Relief Valve Tilt Lock Lever Engine Cover Latches (LHT, LRT and XRT types)
TTIILLTT LLOOCCKK LLEEVVEERR
FRONT
RIGHT STERN BRACKET
POWER (To fix)
MANUAL RELIEF VALVE
MANUAL (To release)
The outboard motor can be tilted manually after opening the manual relief valve. This allows the outboard motor to be tilted when no battery is connected.
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FFRREEEE
LLOOCCKK
The tilt lock lever is used to support the outboard motor in the fully-raised position.
When the boat is to be moored for a long time, tilt the outboard motor as far as it will go. Then move the tilt lock lever to the LOCK position, and gently lower the outboard motor until the lever contacts the stern bracket.
UNLATCH
ENGINE COVER LATCH
REAR
FFIIXX
ENGINE COVER LATCH
FFIIXX
UNLATCH
The engine cover latches fasten the
engine cover to the outboard motor.
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CONTROLS AND FEATURES
Transom Angle Adjusting Rod Trim Tab
STERN BRACKET
TTUURRNN UUPP
PPUUSSHH
TRANSOM ANGLE ADJUSTING ROD
The transom angle adjusting rod limits the tilt angle of the outboard motor when fully lowered.
Proper adjustment prevents the outboard motor from being trimmed too low (p. ).
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TRIM TAB BOLT
PROPELLER
The trim tab compensates for
‘‘torque steer’’, which is a reaction of
TO CHANGE
UNLOCKED POSITION
the outboard motor to propeller
rotation.
If uncompensated, torque steer would
make the outboard motor tend to turn
to one side.
When the trim tab is correctly
adjusted (p. ), steering effort is
TO LOCK
LOCKED POSITION
equal in either direction.
TRIM TAB
61
TRANSOM ANGLE ADJUSTING ROD
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CONTROLS AND FEATURES

INSTRUMENTS

Trim Meter [optional equipment (LHT, LRT and XRT Types)]
TRIM METER
The trim meter indicates the relative trim angle of the outboard motor.
Refer to the trim meter when using the power trim/tilt switch to achieve proper boat performance.
Tachometer Fuel Gauge [optional equipment (LHT,
(optional equipment)
LRT and XRT Types)]
FUEL GAUGE
A fuel gauge is built into the cap of
TACHOMETER
The tachometer shows engine speed in revolutions per minute.
Refer to the tachometer when using the throttle and power trim/tilt controls to achieve the best performance from the boat.
the portable fuel tank (optional
equipment).
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CONTROLS AND FEATURES

INDICATORS

Oil Pressure Indicator
LH and LHT Types
(GREEN)
LRTandXRTTypes (side-mount type)
(GREEN)
BUZZER
When the green light is lit, oil
pressure is OK.
If oil pressure becomes low, the
green light will go off, and the
engine protection system will limit
engine speed. Refer to
CARE OF UNEXPECTED
PROBLEMS
Remote controls are also equipped
with a buzzer that sounds
continuously when the green light
goes off.
The buzzer sound stops below an
engine speed of 1,400 rpm.
Low oil pressure indicates that the
engine oil level is low, or that there is
a problem with the engine lubrication
system.
,onp. .
TAKING
90
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CONTROLS AND FEATURES
Overheat Indicator
LH and LHT Types
(RED)
LRTandXRTTypes (side-mount type)
BUZZER
(RED)
If the engine overheats, the red light
will come on, and the engine
protection system will limit engine
speed.
When normal engine temperature is
restored, the engine speed will
gradually rise to normal engine speed.
If the condition persists for another
20 seconds, the engine will shut off.
Refer to
UNEXPECTED PROBLEMS
p. .91
Remote controls are also equipped
with a buzzer that sounds when the
red light comes on.
Engine overheating may be the result
of clogged water intakes.
TAKING CARE OF
,on
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CONTROLS AND FEATURES

Cooling System Indicator OTHER FEATURES

COOLING SYSTEM INDICATOR
Water should flow from the cooling system indicator while the engine is running. This shows that water is circulating through the cooling system.
If water stops flowing while the engine is running, that indicates a cooling system problem, such as clogged water intakes, which will cause engine overheating. Refer to
TAKING CARE OF UNEXPECTED PROBLEMS
,onp. .91
The cooling system indicator discharge port can also become plugged.
Overrev Limiter
The engine is equipped with an
overrev limiter to prevent the
possibility of mechanical damage
from excessive engine speed.
The overrev limiter may be activated
during operation, limiting engine
speed, if the outboard motor is tilted
excessively, or when propeller
ventilation occurs during a sharp turn.
If the overrev limiter is activated,
check the trim angle of the outboard
motor.
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CONTROLS AND FEATURES
Anodes
ANODE (stern bracket)
ANODE (trim tab)
The anodes are made of a sacrificial material that helps to protect the outboard motor from corrosion.
There are two anodes on the gear case, one on the stern bracket, and another is the trim tab.
Portable Fuel Tank
(optional equipment)
The portable fuel tank has a capacity
of US gal ( ) and has a fuel
gauge built into the cap.
256.6
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(optional equipment)
VENT KNOB
CONTROLS AND FEATURES
Fuel Priming BulbFuel Filler Cap Vent Knob
UP
OUTLET END (MOTOR)
OOPPEENN
FUEL FILLER CAP
The cap is provided with a vent knob to seal the portable fuel tank for carrying it to and from the boat.
CCLLOOSSEE
PRIMING BULB
INLET END (TANK)
A priming bulb is built into the fuel hose that connects the fuel tank to the
outboard motor. Open the vent knob 2 or 3 turns before starting the engine. Before starting the engine, hold the
priming bulb up in the direction of
the arrow, then squeeze the priming
bulb until it feels firm. This will
ensure that fuel is supplied to the
engine.
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BEFORE OPERATION

ARE YOU READY TO GET UNDER WAY?

Your safety is your responsibility. A little time spent in preparation will significantly reduce your risk of injury.
Knowledge
Read and understand this manual. Know what the controls do and how to operate them.
Familiarize yourself with the outboard motor and its operation before you get under way. Know what to do in case of emergencies.
Familiarize yourself with all laws and regulations relating to boating and the use of outboard motors.
Safety
Always wear a PFD (Personal
Flotation Device) while on the boat.
Attach the emergency stop switch
lanyard securely to your PFD or to
your wrist.
IS YOUR OUTBOARD
MOTOR READY TO GO?
For your safety, and to maximize the
service life of your equipment, it is
very important to take a few
moments before you operate the
outboard motor to check its condition.
Be sure to take care of any problem
you find, or have your authorized
Honda marine dealer correct it,
before you operate the outboard
motor.
Improperly maintaining this outboard motor, or failing to correct a problem before operation, can cause a malfunction in which you could be seriously hurt or killed.
Always perform a preoperation inspection before each operation, and correct any problem.
Before beginning your preoperation checks, be sure the ignition switch is in the OFF position.
32
Page 35
BEFORE OPERATION
Safety Inspection Maintenance Inspection
Look around the outboard motor for signs of oil or gasoline leaks.
If you are using the portable fuel tank (optional equipment), make sure it is in good condition and properly secured in the boat (p. ).
36
Check that the fuel hose is undamaged and properly connected (p. ).
Wipe up any spills before starting the engine.
Check the stern bracket to be sure the outboard motor is securely installed.
Check that all controls are operating properly.
Replace any damaged parts.
36
Check that all fasteners are in place and securely tightened.
Check the engine oil level (p. ). Running the engine with a low oil level can cause engine damage.
Check to be sure the propeller is undamaged, and the castle nut is secured with the cotter pin (p. ).
Check that the anodes are securely attached to the gear case (p. ) and are not excessively worn. The anodes help to protect the outboard motor from corrosion.
Make sure the tool kit (optional equipment) and emergency starter rope are onboard (p. ). Replace any missing items.
Check the fuel level in the fuel tank (p. ).
Check that the battery fluid is between the upper and lower levels, and the battery leads are connected securely.
70
58
63
76
75
33
Page 36

OPERATION

SAFE OPERATING PRECAUTIONS

To safely realize the full potential of this outboard motor, you need a complete understanding of its operation and a certain amount of practice with its controls.
Before operating the outboard motor for the first time, please review the
IMPORTANT SAFETY INFORMATION
chapter titled
For your safety, avoid starting or operating the engine in an enclosed area. Your engine’s exhaust contains poisonous carbon monoxide gas which can collect rapidly in an enclosed area and cause illness or death.
on page and the
BEFORE OPERATION.
7

BREAK-IN PROCEDURE

Break-in period: 10 hours
Proper break-in operation allows the
moving parts to wear in smoothly for
best performance and long service
life.
First 15 minutes:
Run the engine at trolling speed. Use
the minimum throttle opening
necessary to operate the boat at a safe
trolling speed.
Next 45 minutes:
Run the engine up to a maximum of
2,000 to 3,000 rpm, which is about
10% to 30% of maximum throttle
opening.
Next 60 minutes:
Run the engine up to a maximum of 4,000 to 5,000 rpm, which is about 50% to 80% of maximum throttle opening.
Short full-throttle bursts are OK, but do not operate the engine continuously at full throttle.
For boats that plane easily, bring the boat up on plane, and then reduce the throttle opening to the recommended rpm range.
Next 8 hours:
Do not run the engine at full throttle for more than 5 minutes at a time.
34
Page 37
OPERATION

TRANSOM ANGLE ADJUSTMENT

STERN BRACKET
TTUURRNN UUPP
PPUUSSHH
TRANSOM ANGLE ADJUSTING ROD
TRANSOM ANGLE ADJUSTING ROD
TO CHANGE
UNLOCKED POSITION
The transom angle adjusting rod
limits the tilt angle of the outboard
motor when fully lowered.
Proper adjustment prevents the
outboard motor from being trimmed
too low (p. ).
50
To adjust, first tilt the outboard
motor so it is not resting on the rod.
Push the rod in and turn the end of
the rod up, so the latch will fall into
line with the rod.
Remove the rod and reinsert it in the
desired position.
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.
Do not allow water to enter the idle exhaust port or the engine can be damaged.
IDLE EXHAUST PORT
TO LOCK LOCKED POSITION
35
Page 38
OPERATION
PORTABLE FUEL TANK FUEL HOSE CONNECTIONS (optional equipment)
Secure the portable fuel tank in the
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
FUEL HOSE
flammable and explosive.
(FUEL TANK SIDE)
You can be burned or
Place the portable fuel tank (optional equipment) in a well-ventilated location, away from direct sunlight, to reduce the possibility of a gasoline vapor explosion.
seriously injured when handling fuel.
Stop the engine and keep heat, sparks, and flame away.
FUEL HOSE CONNECTOR
Handle fuel only
To ensure that the outboard motor will be able to draw fuel from the tank, place the tank within 6 feet of
outdoors. Wipe up spills immediately.
(OUTBOARD MOTOR SIDE)
the outboard motor and not more than 3 feet below the fuel connector 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.
36
Page 39
OPERATION

FUEL PRIMING STARTING THE ENGINE

UP
OUTLET END (MOTOR)
PRIMING BULB
INLET END (TANK)
Hold the priming bulb with the outlet end higher than the inlet end. Squeeze the priming bulb several times, until it feels firm, indicating that fuel has reached the carburetor.
Check to be sure there are no fuel leaks before starting the engine.
Do not squeeze the priming bulb when the engine is running because that could flood the carburetor.
LH and LHT Types
(long tiller handle)
EMERGENCY STOP SWITCH
LANYARD
Put the emergency stop switch clip
1. in the emergency stop switch, and attach the lanyard to your PFD (Personal Flotation Device) or to your wrist, as shown.
SWITCH CLIP
The engine will not start or run, unless the clip is in the switch.
The emergency stop switch clip and lanyard system is a safety device that will stop the engine if you fall away from the controls while operating the boat.
Always attach the lanyard to your PFD, or to your wrist, before starting the engine.
37
Page 40
OPERATION
N (neutral)
GEARSHIFT LEVER
Check the position of the gearshift
2. 3. 4. lever. It must be in the N (neutral) position for starting.
Align the engine start symbol ‘‘ ’’ on the tiller handle with the pointer ‘‘ ’’ on the throttle grip.
START POSITION
POINTER
THROTTLE GRIP
The engine will not start if the gearshift lever is in the F (forward) or R (reverse) position.
ON
START
OFF
IGNITION SWITCH KEY
Turn the ignition switch key to the START position and hold it there until the engine starts.
When the engine starts, release the key, allowing it to return to the ON position.
If the engine fails to start within 5 seconds, release the key and wait at least 10 seconds before operating the starter again.
38
Page 41
OPERATION
Using the electric starter f or more than 5 seconds at a time will overheat the starter motor and can damage it.
Turning the ignition switch key to the START position while the engine is running can damage the starter motor and f lywheel.
Also, as the engine warms up, the throttle grip can be turned to the SLOW position without stalling.
Before getting under way, allow
5. the engine to warm up sufficiently to ensure good performance.
Above 41°F (5°C), warm up the engine for 2 or 3 minutes.
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. ), overheat indicator (p. ) and cooling system indicator (p. ).
27
28
29
If the indicators show any abnormal condition, immediately stop the engine and determine the cause of the problem. Refer to
TAKING CARE OF UNEXPECTED PROBLEMS
from p. .
90
LRTandXRTTypes (remote control)
For panel mount or top mount remote control information, refer to the instructions provided with the remote control equipment.
Side-Mount Type
EMERGENCY STOP SWITCH
SWITCH CLIP
Put the emergency stop switch clip
1. in the emergency stop switch, and attach the lanyard to your PFD (Personal Flotation Device) or to your wrist, as shown.
LANYARD
39
Page 42
OPERATION
The engine will not start or run, unless the clip is in the switch.
The emergency stop switch clip and lanyard system is a safety device that will stop the engine if you fall away from the controls while operating the boat.
Always attach the lanyard to your PFD, or to your wrist, before starting the engine.
N (neutral)
CONTROL LEVER
Set the control lever in the N
2. 3. (neutral) position.
The engine will not start if the F (forward) or R (reverse) gears are engaged.
FAST IDLE
START
FAST IDLE LEVER
To start a cold engine, leave the fast idle lever in the START (fully lowered) position.
To restart a warm engine, raise the fast idle lever.
Fast idle lever cannot be raised unless the control lever is in the N (neutral) position.
The control lever cannot be moved away from the N (neutral) position unless the fast idle lever is lowered.
40
Page 43
OPERATION
ON
OFF
START
Using the electric starter f or more than 5 seconds at a time will overheat the starter motor and can damage it.
Turning the ignition switch key to the START position while the engine is running can damage the starter motor and f lywheel.
IGNITION SWITCH KEY
Turn the ignition switch key to the
4. 5. START position and hold it there until the engine starts.
When the engine starts, release the key, allowing it to return to the ON position.
If the engine fails to start within 5 seconds, release the key and wait at least 10 seconds before operating the starter again.
FAST IDLE LEVER
If the fast idle lever was used to start the engine, gradually lower the lever as the engine warms up.
When the fast idle lever is fully lowered, the control lever can be moved away from the N (neutral) position.
41
Page 44
OPERATION
Before getting under way, allow
6. the engine to warm up sufficiently to ensure good performance.
Above 41°F (5°C), warm up the engine for 2 or 3 minutes.
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. ), overheat indicator (p. ), and
28
cooling system indicator (p. ).
If the indicators show any abnormal condition, immediately stop the engine and determine the cause of the problem. Refer to
TAKING CARE OF UNEXPECTED PROBLEMS
from p. .
90

EMERGENCY STARTING

If the battery is discharged, or the starter motor is inoperative, you can start the engine manually using the emergency starter rope supplied with the motor.
(REAR) (FRONT)
27
29 2.
Unlatch and remove the engine
1.
UUNNLLOOCCKK UUNNLLOOCCKK
ENGINE COVER LATCHES
cover. Turn the ignition switch key to the
WASHERS
3.
×
625mm BOLTS
WASHERS
FLYWHEEL COVER
Remove the flywheel cover by unscrewing the four cover bolts.
Set the controls the same as for normal starting (see pages
). Use the fast idle control if
40
37
needed.
ON position.
42
Page 45
FLYWHEEL
EMERGENCY STARTER ROPE
KNOT
Set the knotted end of the emergency starter rope in the notch in the flywheel. Wind the rope counterclockwise around the flywheel, as shown.
Pull the emergency starter rope
5.4. slowly until resistance is felt, then pull briskly.
Keep away from moving parts while pulling the rope.
If necessary, rewind the rope and pull again. If the engine does not start after several attempts, refer to
TAKING CARE OF UNEXPECTED PROBLEMS
from p. .
84
OPERATION
If the fast idle control(s) was used
6. to start the engine, return the control(s) to the normal operating position as the engine warms up.
During the warm-up period, check the oil pressure indicator (p. ), overheat indicator (p. ), and cooling system indicator (p. ).
Leave the flywheel cover off, but
7. install the engine cover (p. ), and lock it in place by latching the engine cover latch.
Exposed moving parts can cause injury.
Do not operate the outboard motor without the engine cover. Use extreme care when installing the engine cover.
28
62
27
29
43
Page 46
OPERATION
If it was necessary to remove the
8. emergency stop switch lanyard from your wrist to perform the emergency starting procedure, be sure the lanyard is attached to your wrist before operating the outboard motor.
Have your closest authorized
9. Honda marine dealer check your electrical system and correct the problem, so you can use the electric starter.
44
Page 47
OPERATION

STOPPING THE ENGINE

Emergency Engine Stopping

LH and LHT Types (long tiller handle)
PPUULLLL
LANYARD
EMERGENCY STOP SWITCH
SWITCH CLIP
LRTandXRTTypes (remote control)
EMERGENCY STOP SWITCH
LANYARD
PULL
SWITCH CLIP
To stop the engine in an emergency, pull the clip out of the emergency stop switch by pulling the lanyard.
We suggest that you stop the engine this way occasionally to verify that the emergency stop switch is operating properly.
Turn the ignition switch key to the OFF position after verifying the emergency stop switch operation.

Normal Engine Stopping

LH and LHT Types (long tiller handle)
SLOW
THROTTLE GRIP
N (neutral)
GEARSHIFT LEVER
LRTandXRTTypes [remote control (side-mount type)]
CONTROL LEVER
Move the throttle grip to the
1. slowest speed and gearshift lever or control lever to N (neutral) position.
45
Page 48
OPERATION
LH and LHT Types (long tiller handle)
OFF
IGNITION SWITCH KEY
LRTandXRTTypes (remote control)
OOFFFF
IGNITION SWITCH KEY
Turn the ignition switch key to the
2. OFF position to stop the engine.
When the boat is not in use,
3. remove and store the ignition key andtheemergencystopswitchclip and lanyard.
46
Page 49
OPERATION

GEARSHIFTING AND THROTTLE OPERATION

LH and LHT Types (long tiller handle)
POINTER
THROTTLE GRIP
SLOW
FAST
GEARSHIFT LEVER
F (forward)
N (neutral)
R (reverse)
To shift gears, turn the throttle grip to the SLOW position, then move the gearshift lever to select F (forward), 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 gearshift lever is in the F (forward) position.
THROTTLE FRICTION ADJUSTER
THROTTLE GRIP
FIX
RELEASE
Use the throttle friction adjuster to help hold a constant throttle setting while cruising.
Turn the adjuster clockwise to increase throttle grip friction for holding a constant speed.
Turn the adjuster counterclockwise to decrease friction for easy grip rotation.
47
Page 50
OPERATION
LRTandXRTTypes (remote control)
Side-Mount Type
CONTROL LEVER
NEUTRAL RELEASE LEVER
To shift gears, move the control lever to select F (forward), N (neutral) and R (reverse) gears.
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 speed.
TO INCREASE FRICTION
THROTTLE FRICTION ADJUSTER
TO DECREASE FRICTION
Adjust the throttle friction adjuster so the control lever will hold a constant throttle setting while cruising.
48
Page 51
OPERATION

STEERING

LH and LHT Types (long tiller handle)
Steer by moving the tiller handle opposite the direction you want the boat to turn.
Steering Friction Adjuster LRT and XRT Types
STEERING FRICTION ADJUSTER
FRICTION PLATE
TTOO IINNCCRREEAASSEE FFRRIICCTTIIOONN ((LLOOCCKK))
TO DECREASE FRICTION (FREE)
Use the steering friction adjuster to help hold a steady course while cruising.
Move the adjuster to the LOCK direction to increase steering friction for holding a steady course.
Move the adjuster to the FREE direction to decrease friction for easy turning.
Do not apply grease or oil on the f riction plate. Grease or oil will reduce the friction of the adjuster.
(remote control)
Steer the boat in the same manner as an automobile.
49
Page 52
OPERATION

CRUISING

Engine Speed

For best fuel economy, limit the throttle opening to 80%. Use the throttle friction control (p. and
) to help you hold a steady speed.
48
For rough water conditions or large waves, slow down to prevent the propeller from rising out of the water.
The engine is equipped with an overrev limiter to prevent the possibility of mechanical damage from excessive engine speed.
If, for example, the outboard motor is tilted excessively, or propeller ventilation occurs during a sharp turn, the engine may overrev, activating the overrev limiter.
47
If engine speed becomes unstable at high speed due to activation of the overrev limiter, reduce speed and check the trim angle of the outboard motor.

Trim

LH Type
Install the outboard motor at the best trim angle for stable cruising and maximum power.
Trim angle too large: Incorrect causes boat to ‘‘squat’’.
Trim angle too small: Incorrect causes boat to ‘‘bow steer’’.
It is necessary to trim the angle of the outboard motor to compensate for changes in boat load, weight distribution, water conditions, or propeller selection.
Under normal conditions, the boat will perform best when the
antiventilation plate is level with the water surface.
When cruising into a high wind, trim the outboard motor down slightly to level the boat and improve stability. With a tail wind, trim the outboard motor up slightly.
LHT, LRT and XRT Types
Use the power trim/tilt switch to trim the outboard motor for the best performance and stability.
You can use the power trim/tilt switch at any time, whether the boat is under way or stopped.
Press the UP or DN (down) side of the switch to adjust the angle of the outboard motor.
Refer to the trim meter (p. ) for an indication of whether the motor is trimmed high or low.
26
50
Page 53
OPERATION
It is necessary to trim the angle of the outboard motor to compensate for changes in boat load, weight distribution, water conditions, or propeller selection.
Under normal conditions, the boat will perform best when the antiventilation plate is level with the water surface.
When cruising into a high wind, adjust the outboard motor down slightly to level the boat and improve stability. With a tail wind, adjust the outboard motor up slightly.
Excessive trim/tilt angle during operation can cause propeller ventilation, overheating, and water pump damage. This type of damage is not covered by the
Limited Warranty
Distributor’s
(p. ).106
LH and LHT Types (long tiller handle)
POWER TRIM/TILT SWITCH
PPrreessss UUPP ttoo ttrriimm oorr ttiilltt tthhee mmoottoorr uupp..
PPrreessss DDNN ttoo ttrriimm oorr ttiilltt tthhee mmoottoorr ddoowwnn..
LRTandXRTTypes
POWER TRIM/TILT SWITCH
Press UP to trim or tilt the motor up.
Press DN to trim or tilt the motor down.
MOTOR ANGLE ADJUSTED TOO LOW
ROUGH WAVES
BOW TOO LOW DUE TO
LOAD IN THE FRONT
1. MOTOR ANGLE ADJUSTED TOO
2. LOW
BOW TOO HIGH DUE TO
LOAD IN THE REAR
1. MOTOR ANGLE ADJUSTED TOO
2. HIGH
MOTOR ANGLE ADJUSTED CORRECTLY
MOTOR ANGLE ADJUSTED TOO HIGH
CONTROL LEVER
51
Page 54
OPERATION

TRIM TAB

If steering effort is not equal in both directions, adjust the trim tab to compensate for ‘‘torque steer’’, which is the reaction of the outboard motor to propeller rotation.
TRIM TAB BOLT
TRIM TAB
PROPELLER
Adjust the trim tab with the engine stopped. Loosen the bolt above the trim tab, turn the trim tab, then tighten the bolt securely.
When the trim tab is correctly adjusted, steering effort will be equal in both directions.

SHALLOW WATER OPERATION

LHT, LRT and XRT Types
When operating in shallow water, use the power trim/tilt switch (p. ) to tilt the outboard motor, so the propeller and gear case won’t hit the bottom.
Proceed at low speed, and monitor water flow from the cooling system indicator (p. ) to be sure the
29 outboard motor is not tilted so high that the water intakes are out of the water.
An excessive trim/tilt angle during operation can cause propeller ventilation, overheating, and water pump damage. This type of damage is not covered by the
Limited Warranty
Distributor’s
(p. ).106
51
LH Type
When operating in shallow water, tilt the outboard motor, using the tilt lever, so the propeller and gear case won’t hit the bottom.
67°
TILT ANGLE
16°
TRIM ANGLE
52
Page 55
OPERATION
ENGINE COVER GRIP
TTIILLTT
RRUUNN ((LLOOCCKK))
TILT LEVER
To tilt the outboard motor, move the tilt lever to the TILT position, then raise the outboard motor to the desired position by pulling on the engine cover grip.
Do not use the tiller handle as a lever to raise the outboard motor. Applying excessive f orce to the tiller handle can damage it.
While the outboard motor is tilted, proceed at a low speed, and do not operate the outboard motor in reverse. The outboard motor will rise suddenly if operated in reverse.
Monitor water flow from the cooling system indicator (p. ) to be sure
29 the outboard motor is not tilted so high the water intake is out of the water.
An excessive tilt angle during operation can cause propeller ventilation, overheating, and water pump damage. This type of damage is not covered by the
Limited Warranty
Distributor’s
(p. ).106
To return the outboard motor to the normal operating position, move the tilt lever to the RUN (LOCK) position, you may need to raise the outboard motor slightly to disengage the tilt mechanism, then slowly lower the outboard motor.
53
Page 56
OPERATION

MOORING, BEACHING, LAUNCHING

LH Type
Use the tilt lever to raise and lower the outboard motor as described on p. .
53
LHT, LRT and XRT Types
To raise the outboard motor out of the water while the engine is stopped and the boat is moored, or for maximum clearance when beaching or launching, use the power tilt switch on the engine pan to tilt the outboard motor as far as it will go, move the tilt lock lever to the LOCK position, then gently lower the outboard motor until the lever contacts the stern bracket.
If more clearance is needed to swing the tilt lock lever into the LOCK position, rock the outboard motor forward slightly by pulling on the engine cover grip.
To lower the outboard motor, tilt up, move the tilt lock lever to the FREE position, then lower the outboard motor to the desired position.
POWER TILT SWITCH
TILT LOCK LEVER (lock position)
FFRREEEE
LLOOCCKK
Do not attempt to use the power tilt switch to tilt the outboard motor down while the tilt lock lever is in the lock position. Damage to the power tilt system may occur.
54
Page 57
OPERATION
RIGHT STERN BRACKET
MANUAL RELIEF VALVE
PPOOWWEERR ((TToo ffiixx))
MMAANNUUAALL ((TToo rreelleeaassee))
The outboard motor can also be tilted manually after opening the manual relief valve. This feature enables the outboard motor to be tilted when no battery is connected.
For manual tilting, use a flat blade screwdriver to turn the valve counterclockwise 2 and a half turns. Close the valve firmly after positioning the engine.
Be sure the valve is closed before operating the outboard motor. If the valve is not closed, the outboard motor will tilt up when operated in reverse.
55
Page 58

SERVICING YOUR OUTBOARD MOTOR

THE IMPORTANCE OF MAINTENANCE

Good maintenance is essential for safe, economical, and trouble-free operation. It will also help reduce air pollution.
Improperly maintaining this outboard motor, or failure to correct a problem before operation, can cause a malfunction in which you could be seriously hurt or killed.
Always follow the inspection and maintenance recommendations and schedules in this owner’s manual.
To help you properly care for your outboard motor, the following pages include a maintenance schedule, routine inspection procedures, and simple maintenance procedures using basic hand tools. Other service tasks that are more difficult, or require special tools, are best handled by professionals and are normally performed by a Honda technician or other qualified mechanic.
The maintenance schedule applies to normal operating conditions. If you operate your outboard motor under unusual conditions, consult an authorized Honda marine dealer for recommendations applicable to your individual needs and use.
Remember that your authorized Honda marine dealer knows your outboard motor best and is fully equipped to maintain and repair it.
To ensure the best quality and reliability, use only new, genuine Honda parts or their equivalents for repair and replacement.
Maintenance, replacement, or repair of the emission control devices and systems may be performed by any marine engine repair establishment or individual, using parts that are ‘‘certified’’ to EPA standards.
56
Page 59
SERVICING YOUR OUTBOARD MOTOR

MAINTENANCE SAFETY Safety Precautions

Some of the most important safety precautions follow. However, we cannot warn you of every conceivable hazard that can arise in performing maintenance. Only you can decide whether or not you should perform a given task.
Failure to properly follow maintenance instructions and precautions can cause you to be seriously hurt or killed.
Always follow the procedures and precautions in the owner’s manual.
Make sure the engine is off before you begin any maintenance or repairs. This will eliminate several potential hazards:
Carbon monoxide poisoning from engine exhaust.
Be sure there is adequate ventilation whenever you operate the engine.
Burns from hot parts.
system cool before touching.
Injury from moving parts.
Do not run the engine unless instructed to do so.
Read the instructions before you begin, and make sure you have the tools and skills required.
To reduce the possibility of fire or explosion, be careful when working around gasoline. Use only a nonflammable solvent, not gasoline, to clean parts. Keep cigarettes, sparks, and flames away from all fuel-related parts.
Wear gloves when handling the propeller to protect your hands from sharp edges.Let the engine and exhaust
57
Page 60
SERVICING YOUR OUTBOARD MOTOR
TOOL KIT (optional equipment)SPARE EMERGENCY STOP
SWITCH CLIP (LH and LHT Types) AND EMERGENCY STARTER ROPE
×
10 12 mm WRENCH
OIL CHECK SCREWDRIVER
SPARE EMERGENCY STOP SWITCH CLIP (LH and LHT Types)
FLAT SCREWDRIVER
PLIERS
18 19 mm SOCKET WRENCH
×
EMERGENCY STARTER ROPE
Always carry the spare emergency stop switch clip and the emergency starter rope onboard. The spare clip may either be stored in the optional tool bag or in an easily accessible location on the boat along with the emergency starter rope.
58
PHILLIPS SCREWDRIVER
SCREWDRIVER HANDLE
8 mm WRENCH
TOOL BAG
Individual items in the tool kit shown above can be purchased from an authorized Honda marine dealer and may be used for simple maintenance procedures and/or emergency repairs. Keep this tool kit or an equivalent onboard, so they will always be available if you need them.
If your tool kit needs replacement, it is not available as a kit and each item must be ordered individually.
Page 61
SERVICING YOUR OUTBOARD MOTOR

MAINTENANCE SCHEDULE

Follow the MAINTENANCE SCHEDULE table and service your outboard motor accordingly. Please note, a claim for warranty coverage will not be denied simply because the maintenance schedule for your outboard was not followed. However, any part(s) that fails specifically due to lack of maintenance, or improperly performed maintenance, would not be covered under the .
Distributor’s Limited Warranty
REGULAR SERVICE PERIOD Perform at every indicated month or operating hour interval, whichever comes first.
ITEM Engine oil
Gear case oil Engine oil filter Timing belt Carburetor linkage Idle speed Valve clearance Spark plug
Propeller and Cotter pin Anode Lubrication Fuel tank and tank filter
Lubricate more frequently when used in salt water.
(1)
These items should be serviced by an authorized Honda marine dealer, unless you have the proper tools and are mechanically proficient.
(2)
(3)
Check level Change Change Replace Check-adjust Check-adjust Check-adjust Check-adjust Check-adjust Replace Check Check Grease Clean
Each use
○ ○
After use
First month
or
20 hrs.
(2)
(2)
(2)
(1)
Every 6 months
or
100 hrs.
(2)
(2)
(2)
(1)
Every year
or
200 hrs.
(2)
(2)
(2)
Refer to the Honda shop manual for service procedures.
For professional commercial use, log hours of operation to determine proper maintenance intervals.
(3)
Every 2 years
or
400 hrs.
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Page 62
SERVICING YOUR OUTBOARD MOTOR
REGULAR SERVICE PERIOD Perform at every indicated month or operating hour interval, whichever comes first. Each use After use
ITEM Thermostat Fuel filter
Fuel line
Battery and cable connection Bolts and nuts Crankcase breather tube Cooling water passages Water pump
Lubricate more frequently when used in salt water.
(1)
These items should be serviced by an authorized Honda marine dealer, unless you have the proper tools and are mechanically proficient.
(2)
(3)
Check Check Replace Check Replace Check level-tightness
Check-tightness Check Clean Check
First month
or
20 hrs.
(4)
Every 2 years (If necessary) (2)
(2)
Every 6 months
or
100 hrs.
(2)
Every year
or
200 hrs.
(2)
(2)
(2)
Refer to the Honda shop manual for service procedures.
For professional/commercial use, log hours of operation to determine proper maintenance intervals.
(3)
When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.
(4)
Every 2 years
or
400 hrs.
60
Page 63
SERVICING YOUR OUTBOARD MOTOR

TRIM TAB ADJUSTMENT

The trim tab compensates for ‘‘torque steer’’ which is a reaction of the outboard motor to propeller rotation.
TRIM TAB
If uncompensated, torque steer would make the outboard motor tend to turn to one side.
When the trim tab is correctly adjusted, steering effort is equal in either direction.
If steering effort is unequal, loosen 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
turns, move the back of the trim tab left.
LEFT
TRIM TAB BOLT
TRIM TAB
RIGHT
TRIM TAB BOLT
If less ef fort is required to make right turns, move the back of the trim tab right.
Adjust the trim tab in small increments, and retest steering effort with the boat evenly loaded and running at cruising speed.
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SERVICING YOUR OUTBOARD MOTOR

MANUAL RELIEF VALVE

LHT, LRT and XRT Types
RIGHT STERN BRACKET
MANUAL RELIEF VALVE
MMAANNUUAALL ((TToo rreelleeaassee))
PPOOWWEERR ((TToo ffiixx))
The outboard motor can be tilted manually after opening the manual relief valve. This feature enables the outboard motor to be tilted when no battery is connected.
For manual tilting, use a flat blade screwdriver to turn the valve counterclockwise 2 and a half turns. Close the valve firmly after positioning the engine.
Be sure the valve is closed before operating the outboard motor. If the valve is not closed, the outboard motor will tilt up when operated in reverse.

ENGINE COVER REMOVAL AND INSTALLATION

(FRONT)
ENGINE COVER LATCH
UUNNLLAATTCCHH
FFIIXX
(REAR)
FFIIXX
UNLATCH
ENGINE COVER LATCH
The engine cover latches fasten the engine cover to the outboard motor.
To remove the engine cover, unlatch both front and rear latches, then lift the engine cover off the outboard motor.
To install the engine cover, place the cover on the outboard motor, then latch both front and rear latches securely.
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Engine Oil Level Check

Check the engine oil level with the engine stopped and the outboard motor in the vertical position.
Unlatch and remove the engine
1. cover (p. ).
Remove the dipstick and wipe it
2. clean.
OIL LEVEL DIPSTICK
62
UPPER LIMIT
LOWER LIMIT
SERVICING YOUR OUTBOARD MOTOR
OIL FILLER CAP
If the oil level is low, remove the
4. oil filler cap, and add oil to reach the upper limit mark shown on the dipstick. Use the oil recommended on p. .
66
Running the engine with a low oil level can cause engine damage.
Install the oil filler cap and tighten
5. it securely.
Install and lock the engine cover.
6.
Insert the dipstick all the way in,
3. then remove it and check the oil level shown on the dipstick.
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SERVICING YOUR OUTBOARD MOTOR

Engine Oil Change

An engine oil evacuation device may be used to remove the engine oil.
Drain the used oil while the engine is warm. Warm oil drains quickly and completely.
Unlatch and remove the engine
1. cover (p. ). Remove the oil
62
filler cap.
DRAIN PLUG COVER
SCREW
DRAIN PLUG COVER (oil drain guide)
64
Loosen the drain plug cover screw
2. 3. using a flat blade screwdriver and remove the drain plug cover.
Place the drain plug cover as shown to use it as an oil drain guide. Place a suitable container under the guide.
Page 67
SEALING WASHER
DRAIN BOLT
SERVICING YOUR OUTBOARD MOTOR
Improper disposal of engine oil can be harmful to the environment. If you change your own oil, please dispose of the used oil properly. Put it in a sealed container, and take it to a recycling center. Do not discard it in a trash bin, dump it on the ground or pour it down a drain.
With the outboard motor in a
7. vertical position, fill to the upper limit mark on the dipstick (p. ) with the recommended oil.
Engine oil refill capacity: Without oil filter change:
2.1 US qt (2.0 )
With oil filter change:
2.1 US qt (2.0
Install the oil filler cap and tighten
8.
)
it securely.
63
Remove the engine oil drain bolt and washer.
Allow the used oil to drain
5. completely, then install a new sealing washer on the engine oil drain bolt, and tighten it securely.
Reinstall the drain plug cover.
6.
9.
Install and lock the engine cover.4.
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SERVICING YOUR OUTBOARD MOTOR

Engine Oil Recommendations

Oil is a major factor affecting performance and service life. Use 4-stroke automotive detergent oil.
SAE Viscosity Grade
AMBIENT TEMPERATURE
SAE 5W-30 is recommended for general use.
The SAE oil viscosity and service classification are in the API label on the oil container. Honda recommends that you use API SERVICE category SG, SH, SJ or SL oil with the ‘‘starburst’’ certification mark displayed on the container.
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SERVICING YOUR OUTBOARD MOTOR

Lubrication Points

Apply marine anticorrosion grease to the following parts:
Lubrication interval: After the first 20 hours or 1 month, then every 100 hours or 6 months. (Refer to the maintenance schedule page
).
59
To prevent corrosion, apply anticorrosion oil to pivot surf aces where grease cannot penetrate.
TILT SHAFT TILLER HANDLE
MOUNT FRAME
PROPELLER SHAFT
SWIVEL CASE
Apply Honda Marine Corrosion Inhibitor (or equivalent) to all areas under the engine cover and any exposed metal surfaces except the belts.
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SERVICING YOUR OUTBOARD MOTOR

Spark Plug Service

RECOMMENDED SPARK PLUGS:
DR7EA (NGK) X22ESR-U (DENSO)
Incorrect spark plugs can cause engine damage.
Unlatch and remove the engine
1. cover (p. ).
Disconnect the spark plug caps
2. from the spark plugs.
Remove the spark plugs with a
3. sparkplugwrench.
62
SPARK PLUG WRENCH
SPARK PLUG CAPS
Inspect the spark plugs. Replace
4. 5. them if the electrodes are worn, or if the insulators are cracked or chipped.
SIDE ELECTRODE
0.024 0.028 in
(0.60 0.70 mm)
SEALING WASHER
Measure the spark plug electrode gap with a wire-type feeler gauge. Correct the gap, if necessary, by carefully bending the side electrode.
The gap should be:
0.024 0.028 in
(0.60 0.70 mm)
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Page 71
Install the spark plugs carefully,
6. by hand, to avoid cross-threading.
SERVICING YOUR OUTBOARD MOTOR
After each spark plug seats, tighten
7. with a spark plug wrench to compress the sealing washer.
If reinstalling used spark plugs, tighten 1/8 1/4 turn after the spark plugs seat.
If installing new spark plugs, tighten 1/2 turn after the spark plugs seat.
Loose spark plugs can overheat and damage the engine. Overtightening the spark plugs can damage the threads in the cylinder head.
8.
Attach the spark plug caps.
9.
Install and lock the engine cover.
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SERVICING YOUR OUTBOARD MOTOR

REFUELING

Portable Fuel Tank (optional equipment)
FUEL TANK CAPACITY:
6.6 US gal (25 )
Check the fuel gauge and refill the tank when necessary.
Remove the fuel tank from the boat for refueling.
VENT KNOB
CCLLOOSSEE
OOPPEENN
FUEL FILLER CAP
To refuel, turn the vent knob counterclockwise to the OPEN position, and unscrew the fuel filler cap.
FUEL GAUGE
SAFE FILL LEVEL
Refuel in a well-ventilated area. Fill the tank to the SAFE FILL LEVEL line.
After refueling, install the cap and tighten it securely. Turn the vent knob clockwise to the CLOSED position, and return the fuel tank to the boat.
Gasoline is highly flammable and explosive.
You can be burned or seriously injured when handling fuel.
Stop the engine and keep heat, sparks, and flame away. Handle fuel only outdoors. Wipe up spills immediately.
Never refill the fuel tank inside a building where gasoline fumes may reach flames or sparks. Keep gasoline away from appliance pilot lights, barbecues, electric appliances, power tools, etc.
Spilled fuel is not only a fire hazard, it causes environmental damage. Wipe up spills immediately.
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FUEL RECOMMENDATIONS

SERVICING YOUR OUTBOARD MOTOR
Use unleaded gasoline with a pump octane rating of 86 or higher.
Your outboard motor is certified to operate on unleaded gasoline. Unleaded gasoline produces fewer engine and spark plug deposits and extends exhaust system life.
Never use stale or contaminated gasoline or an oil/gasoline mixture. Avoid getting dirt or water in the fuel tank.
Occasionally you may hear a light ‘‘spark knock’’ or ‘‘pinging’’ (metallic rapping noise) while operating under heavy loads. This is no cause for concern.
If spark knock or pinging occurs at a steady engine speed, under normal load, change brands of gasoline. If spark knock or pinging persists, see an authorized Honda marine dealer.
Running the engine with persistent spark knock or pinging can cause engine damage.
Running the engine with persistent spark knock or pinging is misuse, and the
Warranty
parts damaged by misuse.
For information regarding oxygenated fuels, please refer to page .
Distributor’s Limited
(p. ) does not cover
106
96
71
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SERVICING YOUR OUTBOARD MOTOR

Fuel Filter Inspection and Replacement

Gasoline is highly
The fuel filter is located under the engine cover between the fuel coupling and the fuel pump.
Water or sediment accumulated in the filter can cause loss of power or hard starting. To prevent engine malfunction, inspect the filter and replace when necessary.
flammable and explosive.
You can be burned or seriously injured when handling fuel.
Stop the engine and keep heat, sparks, and flame away. Handle fuel only outdoors. Wipe up spills immediately.
PPUULLLL
PUSH
FUEL HOSE CONNECTOR
Remove the engine cover (p. )
1. 62 and disconnect the fuel hose connector from the outboard motor.
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SPRING RETAINER
FUEL FILTER
SERVICING YOUR OUTBOARD MOTOR
HOSE CLAMP GRIPPERS (commercially available)
FUEL HOSE CLIPS
FUEL HOSES
Place clamps on the fuel hoses on
4. each side of the filter to prevent fuel leakage when the fuel hoses are disconnected.
FUEL PUMP
FUEL HOSE CLIPS
Pull the spring retainer toward you,
2. 3. and raise the fuel filter.
Inspect the filter for water and/or sediment accumulation.
If the filter is OK, reinstall it. If water and/or sediment are present, replace the filter as described in the following steps. Always replace the filter at the scheduled replacement interval (p. ).
ARROW (fuel flow direction)
FUEL FILTER
5.60Install the new fuel filter so the arrow on the filter points toward the fuel pump.
Fuel flow will be reduced if the fuel filter is installed backward.
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SERVICING YOUR OUTBOARD MOTOR
6.
Connect the fuel hoses to the fuel filter securely with the hose clips. Remove the fuel hose clamps used to close the fuel hoses.
Securely connect the fuel hose
7. connector to the outboard motor (refer to page ).
Prime the engine using the priming
8. bulb (p. ). Check for fuel leaks. Repair any fuel leaks if necessary.
If loss of power or hard starting are found to be caused by excessive water or sediment accumulation in the fuel filter, inspect the fuel tank.
Clean the fuel tank and tank filter if necessary. It may be necessary to drain the fuel tank completely and refill with fresh gasoline.
36
37
Portable Fuel Tank and Filter Cleaning (optional equipment)
Gasoline is highly flammable and explosive.
You can be burned or seriously injured when handling fuel.
Stop the engine and keep heat, sparks, and flame away. Handle fuel only outdoors. Wipe up spills immediately.
Fuel Tank
FUEL HOSE
Empty the portable fuel tank into an approved gasoline container. Use a funnel to avoid spilling fuel. Rinse the fuel tank with nonflammable solvent to remove any accumulated sediment.
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SERVICING YOUR OUTBOARD MOTOR
Fuel Tank Filter
TANK FILTER JOINT (Fuel Hose Connector)
O-RING
FUEL TANK FILLER
Unscrew the fuel hose connector
1. by turning it counterclockwise, then remove the fuel hose connector and fuel tank filter from the tank.
Clean the filter in nonflammable
2. solvent. Inspect the fuel tank filter and the connector O-ring. Replace them if damaged.
Reinstall the filter and hose
3. connector in the fuel tank. Tighten the hose connector securely.

Anode Replacement

ANODE (stern bracket)
ANODE (trim tab)
One anode is located on the stern bracket and the other anode is the trim tab. They are made of a sacrificial material that helps to protect the outboard motor from corrosion.
Replace the anodes when they have been reduced to about half their original size, or if they are crumbling.
Painting or coating the anodes will def eat their purpose and will lead to rust and corrosion damage to the outboard motor. The anodes must be exposed to the water in order to protect the outboard motor.
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SERVICING YOUR OUTBOARD MOTOR

Propeller Replacement

Before replacing the propeller, remove the clip from the emergency stop switch to prevent any possibility of the engine being started while you are working with the propeller.
The propeller blades may have sharp edges, so wear heavy gloves to protect your hands.
Operating the outboard motor at higher altitudes will reduce available power. This may require decreasing the propeller pitch to maintain correct engine RPM.
Removal Installation
Remove the cotter pin, unscrew the castle nut, remove the washers, then remove the propeller and thrust washer.
MARINE GREASE
SPECIAL SPLINE WASHER
THRUST WASHER
PROPELLER
Install the propeller in the reverse order of removal.
Install the thrust washer with the grooved side toward the gear case.
Use a genuine Honda stainless steel cotter pin or equivalent cotter pin and bend the pin ends as shown.
PLAIN WASHER
CASTLE NUT
COTTER PIN (stainless)
COTTER PIN (stainless)
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STORAGE

STORAGE PREPARATION

Proper storage preparation is essential for keeping your outboard motor trouble-free 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 outboard motor again.

Cleaning and Flushing

Thoroughly clean and flush the outboard motor with f resh water after operation in dirty water or salt water.
Touch up any damaged paint, and coat areas that may rust with Honda Corrosion Inhibitor, or equivalent. Lubricate controls with a silicone spray lubricant.
Cleaning
Wash the outside of the outboard motor with clean, fresh water, and flush the cooling system as described.
Flushing With the Honda Garden Hose Adapter (optional equipment)
It is necessary to run the engine during the flushing procedure. For safety, remove the propeller from the outboard motor (p. ).
WASH PLUG (flush plug)
Remove the wash plug and sealing
1. washer from the WASH plug hole in the gear case. Be sure not to remove the oil level plug from the OIL LEVEL plug hole in the gear case.
76
GARDEN HOSE ADAPTER (FLUSH KIT COUPLER)
Remove the sealing washer from
2. the wash plug and install the sealing washer on the flush kit coupler.
Install the flush kit coupler into the
3. WASH plug hole and connect a fresh water hose to the garden hose adapter.
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STORAGE
Move the gearshift lever or control
4. lever to the N (neutral) position. Flush the outboard motor in the neutral position only.
Turn on the fresh water supply to
5. the flush kit coupler.
Running the engine without good water circulation can cause overheating and water pump damage.
Damage caused by running the outboard motor without sufficient cooling water is not covered by the
Distributor’s Limited Warranty
(p. ).
106
COOLING SYSTEM INDICATOR
Start the engine. Monitor the
6. cooling system indicator. Stop the engine if water does not come out of the cooling system indicator and check the fresh water supply.
If the fresh water supply is insufficient it may be necessary to temporarily cover the three water intakes with duct tape as shown on the following page.
WATER INTAKES
78
WATER INTAKES
Page 81
STORAGE
Allow the engine to run at idle for
7. at least 5 minutes to clean the inside of the motor.
Stop the motor and remove the
8. garden hose adapter.
Remove the sealing washer from
9. the garden hose adapter and install the sealing washer on the wash plug.
If tape was used to cover the three water intakes in step 6, remove the tape now.
Install the wash plug into the gear
10. case securely.

Fuel

Depending on the region where you operate your outboard, fuel f ormulations may deteriorate and oxidize rapidly. Fuel deterioration and oxidation can occur in as little as 15 days and may cause damage to the carburetors and fuel system. Please check with your servicing dealer f or local storage recommendations.
Gasoline will oxidize and deteriorate in storage. Old gasoline will cause hard starting, and it leaves gum deposits that clog the fuel system. If the gasoline in your fuel tank and carburetor deteriorates during storage, you may need to have the carburetor and other fuel system components serviced or replaced.
The length of time that gasoline can be left in your fuel tank and carburetor without causing functional problems will vary with such factors as gasoline blend, your storage temperatures, and whether the 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 in less than 30 days, if the gasoline was not fresh when you filled the fuel tank.
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STORAGE
Adding a Fuel Stabilizer
When adding a fuel stabilizer, fill the fuel tank with fresh gasoline. If only partially filled, air in the tank will promote fuel deterioration during storage. If you keep an additional container of gasoline for refueling, be sure that it contains only fresh gasoline.
Add fuel stabilizer following the
1. manufacturer’s instructions.
After adding a fuel stabilizer, run
2. the engine in water for 10 minutes to be sure that the treated gasoline has replaced the untreated gasoline in the carburetor.
Turn the engine OFF.
3.
Distributor’s Limited Warranty
The (p. ) does not cover fuel system
106 damage or engine performance problems resulting from neglected storage preparation.
Draining the Fuel System
You can avoid fuel deterioration problems by draining the fuel tank and carburetors.
Disconnect the fuel hose from the
1.
outboard motor.
DRAIN SCREW
With the outboard motor in a
2. vertical position, place an approved gasoline container below the fuel drain outlet, and use a funnel to avoid spilling fuel.
Gasoline is highly flammable and explosive.
You can be burned or seriously injured when handling fuel.
Stop the engine and keep heat, sparks, and flame away. Handle fuel only outdoors. Wipe up spills immediately.
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STORAGE
1 CARBURETOR
DRAIN SCREW
2 CARBURETOR
DRAIN SCREW
DRAIN TUBE
3 CARBURETOR
DRAIN SCREW
Loosen the drain screw on 1
3.
carburetor, allow the carburetor to drain completely, then tighten the drain screw securely.
Remove the drain tube from 1
4. carburetor, install it on 2
carburetor, and drain that carburetor in the same manner.
Repeat this procedure to drain 3
5. carburetor.
After all three carburetors are
6. drained, reinstall the drain tube on
1 carburetor.
Drain the fuel tank into an
7. approved gasoline container, or if you need to store fuel in the fuel tank, you can extend fuel storage life by filling the fuel tank with fresh gasoline and adding a fuel stabilizer that is formulated for that purpose.
If using the portable fuel tank (optional equipment), firmly close the fuel tank vent knob.

Engine Oil

Change the engine oil (p. ).
1.
Remove the spark plugs (p. ),
2. and remove the clip from the emergency stop switch.
Pour a tablespoon (5 10 cm ) of
3. clean engine oil into each cylinder.
Using the emergency starter rope
4. (p. ), rotate the flywheel a few
43 revolutions to distribute the oil in the cylinders.
Reinstall the spark plugs (p. ).
5.
64
68
3
68
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Page 84
STORAGE

STORAGE PRECAUTIONS

Select a well-ventilated storage area. If possible, avoid storage areas with high humidity.
If storing a container of gasoline, such as the portable fuel tank (optional equipment), store it away from any appliance that operates with a flame, such as a furnace, water heater, or clothes dryer. Also avoid any area with a spark producing electric motor, or where power tools are operated.
If the outboard motor will be removed from the boat for storage, we recommend storing it vertically by mounting it on a commercially available stand.
CASE PROTECTOR
If it is necessary to store the outboard motor horizontally, drain the carburetors (p. ), and drain the engine oil (p. ), before removing
80
64
the outboard motor from the boat.
Position the outboard motor with its carburetor side down, and cushion it with protective packing material.
Cover the outboard motor to keep out dust. Do not use sheet plastic as a dust cover. A nonporous cover will trap moisture, promoting rust and corrosion.

REMOVAL FROM STORAGE

Check your outboard motor as described in the
OPERATION
If the cylinders were coated with oil during storage preparation, the engine may smoke briefly at startup. This is normal.
BEFORE
chapter of this manual.
OUTBOARD MOTOR STAND (commercially available)
82
Page 85

TRANSPORTING

WITH OUTBOARD MOTOR INSTALLED ON BOAT

When trailering a boat with the outboard motor attached, leave the engine in the normal running position, if possible.
LH and LHT Types (long tiller handle)
STEERING FRICTION ADJUSTER
TTOO IINNCCRREEAASSEE FFRRIICCTTIIOONN ((LLOOCCKK))
Tighten the steering friction adjuster to prevent the outboard motor from moving while trailering the boat.
TTOO DDEECCRREEAASSEE FFRRIICCTTIIOONN ((FFRREEEE))
LRTandXRTTypes (remote control)
Use a motor support bar to prevent the outboard motor from moving while trailering the boat. Refer to the manufacturer’s instructions for using a motor support bar.
All Types
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.

WITH OUTBOARD MOTOR REMOVED FROM BOAT

Secure the outboard motor in either the vertical or horizontal position shownonp. .82
MOTOR SUPPORT BAR (commercially available)
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TAKING CARE OF UNEXPECTED PROBLEMS

ELECTRIC STARTER WILL
NOT OPERATE
Check battery.
1.
Check fuse. Fuse burnt out. Replace fuse (p. ).
2.
Use emergency starting
3. procedure (p. ), then take outboard motor to an authorized Honda marine dealer, or refer to the shop manual.
42
Battery connections loose or corroded.
Starter malfunction, switch malfunction, or electrical problem in the starting circuit.
Possible Cause Correction
Clean and tighten battery connections.
Recharge battery.Battery discharged.
Replace or repair faulty components as necessary.
89
84
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TAKING CARE OF UNEXPECTED PROBLEMS

CorrectionPossible CauseENGINE WILL NOT START

Check emergency stop switch
1. clip.
Check control positions.
2.
Clip not inserted in stop switch.
Gearshift lever or control lever not in neutral position.
Throttle grip not in START position (long tiller handle type).
Fast idle lever raised (remote control/side-mount type).
Insert clip in stop switch.
Shifttoneutral(p.38or40).
Turn throttle grip to START position (p. ).
Lower fast idle lever, if the engine is warm (p. ).
38
40
85
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TAKING CARE OF UNEXPECTED PROBLEMS
(continued)
CorrectionPossible CauseENGINE WILL NOT START
Check fuel. Out of fuel.
3.
Fuel vent closed (portable fuel tank optional equipment).
Fuel hose not primed.
Fuel filter or fuel tank filter clogged.
Bad fuel; boat stored without treating or draining gasoline, or refueled with bad gasoline.
Remove and inspect spark plugs.
4.
Take outboard motor to an
5. authorized Honda marine dealer, or refer to the shop manual.
Spark plugs faulty, fouled or improperly gapped.
Spark plugs wet with fuel (flooded engine).
Carburetor malfunction, fuel pump failure, ignition malfunction, stuck valves, etc.
86
Refuel (p. ).
Open fuel filler cap vent (p. ).
Squeeze priming bulb (p. ).
Replace fuel filters (p. ).
Drain fuel tank and carburetors
80
(p. ). Refill with fresh gasoline
70
(p. ).
Gap or replace spark plugs (p. ).
Dry and reinstall spark plugs. Start engine with the throttle open.
Replace or repair faulty components as necessary.
70
36
37
72 and 75
68
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AFTER STARTING
TAKING CARE OF UNEXPECTED PROBLEMS
CorrectionPossible CauseHARD STARTING OR STALLS
Check control positions. Turn throttle grip to START
1.
Check fuel.
2.
Throttle grip not in START position (long tiller handle type).
Fast idle lever raised (remote control/side-mount type).
Fuel vent closed (portable fuel
tank optional equipment).
Fuel hose not primed.
Fuel filter or fuel tank filter clogged.
Bad fuel; boat stored without treating or draining gasoline, or refueled with bad fuel.
(p. ).
38
Lower fast idle lever, unless engine is warm (p. ).
Open fuel filler cap vent (p. ).
Squeeze priming bulb (p. ).
Replace fuel filters (p. and ).
Drain fuel tank and carburetors (p. ). Refill with fresh gasoline
80
(p. ).
70
40
36
37
72 75
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TAKING CARE OF UNEXPECTED PROBLEMS
HARD STARTING OR STALLS
AFTER STARTING
(continued)
Possible Cause Correction
Remove and inspect spark plugs.
3.
Take outboard motor to an
4. authorized Honda marine dealer, or refer to the shop manual.

ENGINE OVERHEATS Possible Cause Correction

Check water intake screens. Water intake screens clogged. Clean water intake screens.
1.
Take outboard motor to an
2. authorized Honda marine dealer, or refer to the shop manual.
Spark plugs faulty, fouled or improperly gapped.
Carburetor malfunction, fuel pump failure, ignition malfunction, etc.
Faulty thermostat or water pump. Replace or repair faulty
Gap or replace spark plugs (p. ).
Replace or repair faulty components as necessary.
components as necessary.
88
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TAKING CARE OF UNEXPECTED PROBLEMS

BATTERY WILL NOT CHARGE AND ELECTRIC STARTER WILL NOT OPERATE

The battery-charging circuit and the electric starter relay circuit are protected by the 15-ampere fuse. If the fuse burns out, the engine will not charge the battery, and the electric starter will not operate. The engine can be started using the emergency starter rope.
The ignition switch is protected by the 10-ampere fuse. If the fuse burns out, the engine will not start or run, and the power trim/tilt switch will not operate.
Fuse Replacement
With the engine stopped, remove
1. the engine cover.
Remove the fuse cover.
2.
Remove and inspect the fuse. If a
3. fuse is burnt out, install a replacement fuse of the specified rating. The outboard motor is supplied with a spare fuse in each fuse holder.
DESIGNATED FUSE:
15A, 10A
Never use a f use with a rating greater than specif ied. Serious damage to the electrical system could result.
FUSE COVER
15A FUSE
SPARE 15A FUSE
FUSE COVER
BLOWN FUSE
Reinstall the fuse cover and the
4.
10A FUSE
SPARE 10A FUSE
engine cover.
Before further operation, try to determine and correct the electrical problem that caused the fuse to burn out. An uncorrected electrical problem may cause the fuse to burn out again.
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TAKING CARE OF UNEXPECTED PROBLEMS

OIL PRESSURE INDICATOR LIGHT GOES OFF AND ENGINE SPEED IS LIMITED

(GREEN)
(long tiller handle type)
(GREEN)
BUZZER
(remote control type)
If oil pressure becomes low, the green indicator light will go off, and the engine protection system will limit engine speed. If you are at cruising speed, engine speed will decrease gradually.
Remote control type is equipped with a buzzer that sounds continuously when the green indicator light goes off. The buzzer sound stops below an engine speed of 1,400 rpm.
Low oil pressure may be the result of a low engine oil level, or there may be a problem with the engine lubrication system.
If the throttle is closed suddenly after full throttle operation, engine speed 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 (p. ), and add oil if needed.
63
With the engine oil at the recommended level, restart the engine. If the lubrication system is OK, the green indicator light should come on within 30 seconds, and the engine will respond normally to throttle grip or control lever operation.
If the engine protection system remains activated after 30 seconds, return to the nearest boat landing, and have the outboard motor inspected by an authorized Honda marine dealer.
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TAKING CARE OF UNEXPECTED PROBLEMS

OVERHEAT INDICATOR LIGHT COMES ON AND ENGINE SPEED IS LIMITED

(RED)
(long tiller handle type)
(RED)
BUZZER
If the engine overheats, the red indicator light will come on, and the engine protection system will limit engine speed. If you are at cruising speed, engine speed will decrease gradually. When normal engine temperature is restored, the engine speed will gradually rise to normal engine speed.
If the condition persists for another 20 seconds, the engine will shut off.
Remote control types are equipped with a buzzer that sounds when the red indicator light comes on.
Engine overheating may be the result of clogged water intake screens, or there may be a problem with the cooling system thermostat or water pump.
COOLING SYSTEM INDICATOR
If overheating activates the engine protection system, idle the engine in neutral, and check the cooling system indicator.
If water is flowing from the cooling system indicator, continue idling for 30 seconds. If the cooling system is OK, the red indicator light should go off within 30 seconds, and the engine will respond normally to throttle grip or control lever operation.
(remote control type)
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TAKING CARE OF UNEXPECTED PROBLEMS
If there is no water flowing from the cooling system indicator, stop the engine, and tilt the outboard motor to inspect the water intake screens. If clogged, clean the water intake screens, return the outboard motor to the running position, restart the engine, and check the cooling system indicator again.
the cooling system indicator, or if the engine protection system remains activated after 30 seconds, return to the nearest boat landing, and have the outboard motor inspected by an authorized Honda marine dealer.

SUBMERGED MOTOR

A submerged outboard motor must be serviced immediately after it is recovered from the water in order to minimize corrosion.
nearby, take the motor to the dealer immediately. If you are far from a dealer, proceed as follows:If there is still no water flowing from
Remove the engine cover, and
1. rinse the outboard motor with fresh water to remove salt water, sand, mud, etc.
Drain the carburetors as described
2. on p. .
Change the engine oil as described
3. on p. . If there was water in the engine crankcase, or if the used engine oil showed signs of water contamination, then a second engine oil change should be performed after running the engine for half an hour.If there is a Honda marine dealer
Remove the flywheel cover
4.80 (p. 42 ).
Remove the spark plugs (p. 68 ),
5. and remove the clip from the emergency stop switch. Pull the emergency starter rope, rotate the flywheel a few revolutions to completely expel any water from the cylinders.
64 65
EMERGENCY STARTER ROPE
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submerged, there may be mechanical damage, such as bent connecting rods. If the engine binds when cranked, do not attempt to run the engine until it has been repaired.
When cranking the engine with an open ignition circuit (spark plugs removed f rom the ignition circuit), remove the clip from the emergency stop switch to prevent possible damage to the ignition system.
TAKING CARE OF UNEXPECTED PROBLEMS
Pour a teaspoon of engine oil into
6. each spark plug hole, then pull the emergency starter rope several times to lubricate the inside of the cylinders.
Reinstall the spark plugs, and put
7. the emergency stop switch clip into the switch.
Attempt to start the engine.If the engine was running when it
8.
If the engine fails to start, remove the spark plugs, dry them, then reinstall the spark plugs and attempt to start the engine again.
If the engine starts, and no mechanical damage is evident, continue to run the engine for a half hour or longer. Be sure the water level is at least two inches above the antiventilation plate to avoid overheating and water pump damage.
As soon as possible, take the
9. outboard motor to an authorized Honda marine dealer for inspection and service.
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TECHNICAL AND CONSUMER INFORMATION

TECHNICAL INFORMATION

Serial Number Locations

Record the product identification number, the engine serial number and the date of purchase in the space provided on this page. You will need these numbers when ordering parts, and when making technical or warranty inquiries (p. ).
103
SWIVEL CASE
PRODUCT IDENTIFICATION NUMBER
The product identification number is stamped on a plate attached on top of the swivel case.
Product identification number:
Date of purchase:
STARTER MOTOR
ENGINE SERIAL NUMBER
The engine serial number is stamped on the cylinder block under the starter motor which is located in the front of the engine.
Engine serial number:
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TECHNICAL AND CONSUMER INFORMATION

Carburetor Modification for High Altitude Operation

At high altitude, the standard carburetor air-fuel mixture will be too rich. Performance will decrease, and fuel consumption will increase. A very rich mixture will also foul the spark plugs and cause hard starting.
High altitude performance can be improved by specific modifications to the carburetors. If you always operate your outboard motor at altitudes above 5,000 feet (1,500 meters), have an authorized Honda marine dealer perform this carburetor modification.
Even with carburetor modification, engine horsepower will decrease about 3.5% for each 1,000-foot (300­meter) increase in altitude. The effect of altitude on horsepower will be greater than this if no carburetor modification is made.
When the carburetors have been modif ied f or high altitude operation, the air-f uel mixture will be too lean f or low altitude use. Operation at altitudes below 5,000 feet (1,500 meters) with modified carburetors may cause the engine to overheat and result in serious engine damage. For use at low altitudes, have an authorized Honda marine dealer return the carburetors to original f actory specif ications.

Battery

For complete information, refer to the battery manufacturer’s instructions.
Minimum Requirements
12V 65Ah (CCA420)
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TECHNICAL AND CONSUMER INFORMATION

Oxygenated Fuels

Some conventional gasolines are being blended with alcohol or an ether compound. These gasolines are collectively referred to as oxygenated fuels. To meet clean air standards, some areas of the United States and Canada use oxygenated fuels to help reduce emissions.
If you use an oxygenated fuel, be sure it is unleaded and meets the minimum octane rating requirement.
Before using an oxygenated fuel, try to confirm the fuel’s contents. Some states/provinces require this information to be posted on the pump.
The following are the EPA-approved percentages of oxygenates:
ETHANOL:
10% by volume.
You may use gasoline containing up to 10% ethanol by volume. Gasoline containing ethanol may be marketed under the name ‘‘Gasohol’’.
MTBE:
15% by volume.
You may use gasoline containing up to 15% MTBE by volume.
METHANOL:
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
ethyl or grain alcohol;
Methyl Tertiary Butyl Ether;
methyl or wood
damage metal, rubber, and plastic parts of your fuel system.
If you notice any undesirable operating symptoms, try another service station, or switch to another brand of gasoline.
Fuel system damage or performance problems resulting from the use of an oxygenated fuel containing more than the percentages of oxygenates mentioned above are not covered under warranty.
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TECHNICAL AND CONSUMER INFORMATION

Emission Control System Information

Source of Emissions
The combustion process produces carbon monoxide, oxides of nitrogen, and hydrocarbons. Control of hydrocarbons and oxides of nitrogen is very important because, under certain conditions, they react to form photochemical smog when subjected to sunlight. Carbon monoxide does not react in the same way, but it is toxic.
Honda utilizes lean carburetor settings and other systems to reduce the emissions of carbon monoxide, oxides of nitrogen, and hydrocarbons.
Air Acts
EPA and California regulations require all manufacturers to furnish written instructions describing the operation and maintenance of emission control systems.
The following instructions and procedures must be followed in order to keep the emissions from your Honda engine within the emission standards.
Tampering and AlteringThe U.S. and Calif ornia Clean
Tampering with or altering the emission control system may increase emissions beyond the legal limit. Among those acts that constitute tampering are:
Removal or alteration of any part of the intake, fuel, or exhaust systems.
Alterations that would cause the engine to operate outside its design parameters.
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TECHNICAL AND CONSUMER INFORMATION
Emissions
If you are aware of any of the following symptoms, have your engine inspected and repaired by your servicing dealer.
Hard starting or stalling after starting.
Rough idle.
Misfiring or backfiring under load.
Afterburning (backfiring).
Black exhaust smoke or high fuel consumption.
Replacement PartsProblems That May Aff ect
The emission control systems on your Honda engine were designed, built, and certified to conform with EPA and California emission regulations. We recommend the use of genuine Honda parts whenever you have maintenance done. These original-design replacement parts are manufactured to the same standards as the original parts, so you can be confident of their performance. The use of replacement parts that are not of the original design and quality may impair the effectiveness of your emission control system.
A manufacturer of an aftermarket part assumes the responsibility that the part will not adversely affect emission performance. The manufacturer or rebuilder of the part must certify that use of the part will not result in a failure of the engine to comply with emission regulations.
Maintenance
Follow the maintenance schedule on p. . Remember that this schedule
59 is based on the assumption that your machine will be used for its designed purpose. Sustained high-load operation, or use in unusual conditions, will require more frequent service.
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