Honda BF40A Owner's Manual

出力用 03.7.30 1:41 PM ページ 1

31ZW3601

00X31-ZW3-6010

EM3 AH 英 N HC 1000.2003.07

Printed in Japan C 2003 Honda Motor Co., Ltd. -All Rights Reserved

PANTONE 288 CVC DIC F101 BLACK

2004

03/04/26 19:10:33 31ZW3600_001

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.

03/04/26 19:10:40 31ZW3600_002

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 the 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. The warranty policy is a separate document that should have been given to you by your dealer.

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.

2003 Honda Motor Co., Ltd. All

Rights Reserved

INTRODUCTION

1

03/04/26 19:10:53 31ZW3600_003

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 − on the outboard motor.

Safety Messages − preceded by a safety alert symbol three signal words, DANGER, WARNING, or CAUTION.

and one of

These signal words mean:

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.

Safety Headings − such as IMPORTANT SAFETY INFORMATION.

Safety Section − such as OUTBOARD MOTOR SAFETY.

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

This entire book is filled with important safety information − please read it carefully.

2

03/04/26 19:10:57 31ZW3600_004

OUTBOARD MOTOR SAFETY ...................................

. 7

IMPORTANT SAFETY INFORMATION ................

. 7

SAFETY LABEL LOCATIONS ................................

. 9

CONTROLS AND FEATURES ..................................

. 10

CONTROL AND FEATURE

IDENTIFICATION CODES ................................

. 10

COMPONENT AND CONTROL LOCATIONS ....

. 11

CONTROLS ..............................................................

. 16

LH and LHT Types (long tiller handle)

Ignition Switch ......................................................

. 16

Emergency Stop Switch and Switch Clip .............

. 16

Throttle Grip ..........................................................

. 17

Throttle Friction Adjuster

Gearshift Lever

.....................................

.....................................................

. 18

. 18

Steering Friction Adjuster .....................................

. 18

Tilt Lever (gas assisted/LH type) ..........................

. 19

LRT and XRT Types (remote control)

Ignition Switch (side-mount type) ........................

. 19

Switch Clip and Emergency Stop Switch

(side-mount type) ..............................................

. 20

Fast Idle Lever (side-mount type) .........................

. 21

Gearshift/Throttle Control Lever

(side-mount type) ..............................................

. 21

CONTENTS

Common Controls

Power Trim/Tilt Switch (LRT and XRT types)

(side-mount type) ..............................................

. 23

Manual Relief Valve

(LHT, LRT and XRT types)

Tilt Lock Lever

.............................

.....................................................

. 24

. 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

Overheating Indicator ...........................................

Cooling System Indicator .....................................

. 28

. 29

3

03/04/26 19:11:01 31ZW3600_005

CONTENTS

OTHER FEATURES ................................................

. 29

Overrev Limiter .....................................................

. 29

Anodes ...................................................................

. 29

Portable Fuel Tank (optional equipment) .............

Fuel Cap Vent Knob (optional equipment) ..........

. 30

. 30

Fuel Priming Bulb .................................................

. 31

BEFORE OPERATION ................................................

. 32

ARE YOU READY TO GET UNDER WAY

IS YOUR OUTBOARD MOTOR

？ .....

. 32

READY TO GO ？ ................................................

. 32

OPERATION ................................................................

SAFE OPERATING PRECAUTIONS ....................

. 34

. 34

BREAK-IN PROCEDURE .......................................

. 34

TRANSOM ANGLE ADJUSTMENT .....................

. 35

PORTABLE FUEL TANK (optional equipment) ....

. 36

FUEL HOSE CONNECTIONS ................................

. 36

FUEL PRIMING .......................................................

. 37

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


. 47

LRT and XRT Types (remote control) .................

. 48

STEERING ...............................................................

. 49


. 49


CRUISING

.................

................................................................

. 49

. 50

TRIM TAB ................................................................

. 52

SHALLOW WATER OPERATIONS ......................

. 52

MOORING, BEACHING, LAUNCHING ...............

. 54

4

03/04/26 19:11:05 31ZW3600_006

CONTENTS

SERVICING YOUR OUTBOARD MOTOR ..............

THE IMPORTANCE OF MAINTENANCE ...........

. 56

. 56

MAINTENANCE SAFETY .....................................

TOOL KIT (optional equipment) AND

. 57

EMERGENCY STARTER ROPE .......................

. 58

MAINTENANCE SCHEDULE

TRIM TAB ADJUSTMENT

...............................

....................................

. 59

. 61

MANUAL RELIEF VALVE ....................................

. 62

ENGINE COVER REMOVAL AND

INSTALLATION .............................................

. 62

Engine Oil Level Check ........................................

. 63

Engine Oil Change ................................................

Engine Oil Recommendations ..............................

. 64

. 66

Lubrication Points

Spark Plug Service

.................................................

. 67

................................................

. 68

REFUELING .............................................................

. 70

FUEL RECOMMENDATIONS ...............................

. 71

Fuel Pump Filter Inspection and Replacement .....

. 72

Portable Fuel Tank and Filter Cleaning

(optional equipment) .........................................

. 74

Anode Replacement ..............................................

Propeller Replacement ..........................................

. 75

. 76

STORAGE ....................................................................

STORAGE PREPARATION ...................................

. 77

. 77

Cleaning and Flushing

Fuel ........................................................................

. 80

Engine Oil

..........................................

. 77

.............................................................

. 81

STORAGE PRECAUTIONS ...................................

. 82

REMOVAL FROM STORAGE ...............................

. 82

TRANSPORTING ........................................................

WITH OUTBOARD MOTOR INSTALLED

. 83

ON BOAT .............................................................

. 83

WITH OUTBOARD MOTOR REMOVED

FROM BOAT .......................................................

. 83

TAKING CARE OF UNEXPECTED

PROBLEMS ..........................................................

. 84

BATTERY WILL NOT CHARGE AND

OIL PRESSURE INDICATOR LIGHT GOES OFF

AND ENGINE SPEED IS LIMITED ...................

. 90

OVERHEATING INDICATOR LIGHT COMES

ON AND ENGINE SPEED IS LIMITED ............

. 91

SUBMERGED MOTOR ..........................................

. 92

5

03/04/26 19:11:08 31ZW3600_007

CONTENTS

TECHNICAL INFORMATION ...............................

. 94

Serial Number Locations ......................................

Carburetor Modification for High Altitude

. 94

Operation ...........................................................

. 95

Battery ...................................................................

. 95

Oxygenated Fuels ..................................................

. 96

Emission Control System Information

Star Label

.................

..............................................................

. 97

. 99

Specifications ......................................................

. 101

CONSUMER INFORMATION .............................

. 103

INDEX .........................................................................

. 104

WIRING DIAGRAMS ........................

. Inside Back Cover

6

03/04/26 19:11:19 31ZW3600_008

IMPORTANT SAFETY

INFORMATION

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.

OUTBOARD MOTOR SAFETY

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.

7

03/04/26 19:11:26 31ZW3600_009


Refuel 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.

Carbon Monoxide Hazard

Exhaust gas contains poisonous carbon monoxide. Avoid inhalation of exhaust gas. Never run the engine in a closed garage or confined area.

8

03/07/23 15:15:13 31ZW3600_010

SAFETY LABEL LOCATIONS


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 servicing dealer for a replacement.

9

03/04/26 19:11:58 31ZW3600_011

CONTROLS AND FEATURES

CONTROL AND FEATURE IDENTIFICATION CODES

Model BF40A

Type LH LHT

Shaft Length

L

X

Long Tiller Handle

Remote Control

Gas Assisted Tilt

Power Trim/Tilt

Tachometer (optional equipment)

Trim Meter (optional equipment)

LRT LHT

BF50A

LRT

10

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 R T

T=Power Trim/Tilt

H=Long Tiller Handle

R=Remote Control

L=Long Shaft

X=Extra Long Shaft

XRT

03/04/26 19:12:07 31ZW3600_012


COMPONENT AND CONTROL LOCATIONS

LH and LHT Types

(long tiller handle)

FUEL HOSE CONNECTOR

LONG TILLER

HANDLE

ENGINE COVER

STERN

BRACKET

TRANSOM ANGLE

ADJUSTING ROD

GEAR OIL LEVEL

CHECK PLUG

WASH PLUG

(Flush plug)

GEAR OIL

DRAIN PLUG

OIL LEVEL

DIPSTICK

POWER TILT

SWITCH

(LHT type) COOLING

SYSTEM

INDICATOR

ENGINE OIL

DRAIN PLUG

COVER

ANTIVENTILATION

PLATE

TRIM TAB (anode)

EXHAUST PORT

PROPELLER

(optional equipment)

OIL FILLER CAP

TILT LOCK LEVER

TILT LEVER

(LH type)

MANUAL RELIEF VALVE

(LHT Type)

WATER INTAKE

11

03/04/26 19:12:13 31ZW3600_013


GEAR SHIFT

OIL PRESSURE

INDICATOR LIGHT

SWITCH CLIP

OVERHEAT

INDICATOR LIGHT

EMERGENCY STOP SWITCH

THROTTLE FRICTION ADJUSTER

12

POWER TRIM/TILT SWITCH

(LHT type)

THROTTLE GRIP

LANYARD

STEERING FRICTION ADJUSTER

IGNITION SWITCH

IGNITION SWITCH KEY

03/04/26 19:12:19 31ZW3600_014


LRT and XRT Types (remote control)

FUEL HOSE

CONNECTOR

ENGINE COVER

POWER TILT SWITCH

OIL FILLER CAP

OIL LEVEL

DIPSTICK

TILT LOCK LEVER

STEERING

PLATE

TRANSOM ANGLE

ADJUSTING ROD

COOLING SYSTEM

INDICATOR

ENGINE OIL DRAIN

PLUG COVER

GEAR OIL LEVEL

CHECK PLUG

TRIM TAB

(anode)

EXHAUST PORT

WASH PLUG

(Flush plug) GEAR OIL

DRAIN PLUG

PROPELLER


STERN

BRACKET

MANUAL RELIEF

VALVE

ANTIVENTILATION

PLATE

WATER INTAKE

13

03/04/26 19:12:24 31ZW3600_015


Remote Control box (side mount type/optional equipment)


GEARSHIFT/THROTTLE

CONTROL LEVER

SPARE SWITCH CLIP

BUZZER (inside of the box)

NEUTRAL RELEASE LEVER

OIL PRESSURE INDICATOR LIGHT

OVERHEAT INDICATOR LIGHT

FAST IDLE LEVER

IGNITION SWITCH


LANYARD


SWITCH CLIP


14

03/04/26 19:12:32 31ZW3600_016

Fuel Tank (optional equipment)

FUEL GAUGE

VENT KNOB


Tachometer


FUEL TANK

FUEL CAP

FUEL HOSE

Trim Meter


PRIMING BULB


(female)

15

03/04/26 19:12:42 31ZW3600_017


CONTROLS

LH and LHT Types

(long tiller handle)

Ignition Switch

IGNITION SWITCH

ON

OFF

START

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 operate the starter motor only when

the gearshift lever (p.

18 ) is in the N

(neutral) position, and the switch clip is in the emergency stop switch.

Turning the ignition switch to the

OFF position stops the engine.

Emergency Stop Switch and

Switch Clip


LANYARD SWITCH CLIP

SWITCH CLIP

The ignition switch controls the ignition system and starter motor.

LANYARD

16

03/04/26 19:12:51 31ZW3600_018

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 swtich clip is supplied with the tool kit (optional equipment).

Throttle Grip

THROTTLE GRIP

INCREASE

THROTTLE INDEX MARK


The throttle grip controls engine speed.

An index mark on the tiller arm shows throttle position and is helpful for setting the throttle correctly when

starting (p.

38 ).

17

03/04/26 19:13:02 31ZW3600_019


Throttle Friction Adjuster

THROTTLE FRICTION

ADJUSTER

Gearshif t Lever

N (neutral)

R (reverse)

Steering Friction Adjuster


FIX

F

(forward)

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.

GEARSHIFT

LEVER

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.

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.

18

03/04/26 19:13:11 31ZW3600_020

Tilt Lever

(gas assisted/LH type)

F R E E

L O C K

TILT LEVER


Moving the tilt lever to the FREE position allows the motor to be tilted and moving the tilt lever to the

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 LOCK position before operating the motor or the motor could tilt up when operating in reverse.

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)

O F F

O N

S T A R T

IGNITION

SWITCH

EMERGENCY STOP

SWITCH

SWITCH CLIP

The ignition switch controls the ignition system and starter motor.

19

03/04/26 19:13:20 31ZW3600_021


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 operate the starter motor only when

the gearshift lever (p.

18 ) is in the N

(neutral) position, and the switch clip is in the emergency stop switch.

Turning the ignition switch to the

OFF position stops the engine.

Switch Clip and Emergency Stop

Switch (side-mount type)

EMERGENCY

STOP SWITCH

LANYARD

SWITCH CLIP

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 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 stored in a slot in the control housing (optional equipment).

SWITCH CLIP

LANYARD

SPARE SWITCH CLIP

20

03/04/26 19:13:29 31ZW3600_022

Fast Idle Lever


N (neutral)


CONTROL LEVER

FAST IDLE


Gearshif t/Throttle Control

Lever (side-mount type)


CONTROL LEVER

START

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. Conversely, the gearshift/throttle control lever will not move unless the fast idle lever is in the lowest position.

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 warm up a cold engine after starting and to start a warm engine.

NEUTRAL

RELEASE

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.

21

03/04/26 19:13:36 31ZW3600_023


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.

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.


CONTROL LEVER

F (forward)

E N G I N E

S P E E D

N (neutral)

HIGH

R (reverse)

E N G I N E

S P E E D

H I G H

22

03/04/26 19:13:49 31ZW3600_024

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.

(LHT type)



P r e s s U P t o t r i m o r t i l t t h e m o t o r u p .

P r e s s D N t o t r i m o r t i l t t h e m o t o r d o w n .


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 tilt switch anytime 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)


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.

23

03/04/26 19:14:01 31ZW3600_025


Manual Relief Valve

(LHT, LRT and XRT types)

Tilt Lock Lever

T I L T L O C K L E V E R

RIGHT STERN BRACKET F R E E

Engine Cover Latches

FRONT

POWER

(To fix)

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.

L O C K UNLATCH

F I X

ENGINE COVER LATCH

REAR 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

F I X


The engine cover latches fasten the engine cover to the outboard motor.

24

03/04/26 19:14:14 31ZW3600_026

Transom Angle Adjusting Rod

STERN BRACKET

T U R N U P

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 ).


Trim Tab

TIGHTENING BOLT

TRIM TAB

P U S H

TRANSOM ANGLE ADJUSTING ROD

TO CHANGE UNLOCKED POSITION

TO LOCK LOCKED POSITION


PROPELLER

The trim tab compensates for

‘‘torque steer,’’ which is a reaction of 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.

61 ), steering effort is

equal in either direction.

25

03/04/26 19:14:27 31ZW3600_027


INSTRUMENTS

Trim Meter

[optional equipment (LHT,

LRT and XRT Types)]

Tachometer


Fuel Gauge


TACHOMETER

TRIM METER

The trim meter has a range of 0° to

16° and indicates the trim angle of the outboard motor.

Refer to the trim meter when using the power trim/tilt switch to achieve proper boat performance.

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.

FUEL GAUGE

A fuel gauge is built into the cap of the portable fuel tank (optional equipment).

26

03/04/26 19:14:37 31ZW3600_028

INDICATORS

Oil Pressure Indicator

LH and LHT Types

(GREEN)

LRT and XRT Types


BUZZER

(GREEN)


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.

Remote controls are also equipped with a buzzer that sounds when the green light goes off.

Low oil pressure indicates that the engine oil level is low, or that there is a problem with the engine lubrication system.

27

03/04/26 19:14:45 31ZW3600_029


Overheating Indicator




(RED)

(RED)

If the engine overheats, the red light will come on, and the engine protection system will limit engine speed.

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.

BUZZER

28

03/04/26 19:14:56 31ZW3600_030

Cooling System Indicator

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.


OTHER FEATURES

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.

Anodes

ANODE

(stern bracket)

ANODE

(trim tab)

29

03/04/26 19:15:06 31ZW3600_031


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


Fuel Cap Vent Knob


VENT KNOB

C L O S E

O P E N

The portable fuel tank has a capacity of 6.6

US gal ( 25 ) and has a fuel gauge built into the cap.

FUEL CAP

The cap is provided with a vent knob to seal the portable fuel tank for carrying it to and from the boat.

Open the vent knob 2 or 3 turns

before starting the engine (p.

36 ).

30

03/04/26 19:15:12 31ZW3600_032

Fuel Priming Bulb

UP

OUTLET END

(MOTOR)

PRIMING BULB

INLET END

(TANK)

A priming bulb is built into the fuel hose that connects the fuel tank to the outboard motor.

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 (p.

37 ).


31

03/04/26 19:15:25 31ZW3600_033

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, could cause a malfunction in which you could be seriously injured.

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

03/04/26 19:15:37 31ZW3600_034

Safety 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.

36 ).

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.

Check that all fasteners are in place and securely tightened.

BEFORE OPERATION

Maintenance Inspection

Check the engine oil level (p.

63 ).

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.

76 ).

Check that the anodes are securely

attached to the gear case (p.

75 )

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.

58 ). Replace

any missing items.

Check the fuel level in the fuel

tank (p.

70 ).

Check that the battery fluid is between the upper and lower levels, and the battery leads are connected securely.

33

03/04/26 19:15:51 31ZW3600_035

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

on page 7 and the

BEFORE OPERATION.

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.

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

03/04/26 19:16:02 31ZW3600_036

TRANSOM ANGLE

ADJUSTMENT

STERN BRACKET

T U R N U P

P U S H



TO CHANGE UNLOCKED

POSITION

OPERATION

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.

TO LOCK LOCKED POSITION

35

03/04/26 19:16:15 31ZW3600_037

OPERATION

PORTABLE FUEL TANK


Secure the portable fuel tank in the boat, so it won’t move around and become damaged.

Before use, open the fuel tank vent by turning the vent knob at least 2 or

3 turns counterclockwise.

FUEL HOSE CONNECTIONS


FUEL

HOSE

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.

To ensure that the outboard motor will be able to draw fuel from the tank, place the tank within 6 feet of the outboard motor and not more than 3 feet below the fuel connector on the outboard motor.

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 SIDE)


(OUTBOARD MOTOR SIDE)

Connect the fuel hose to the tank and the outboard motor, as shown. Be sure both connectors snap securely into place.

36

03/04/26 19:16:26 31ZW3600_038

FUEL PRIMING

UP

OUTLET END

(MOTOR)

STARTING THE ENGINE


(long tiller handle)


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 carburetors.


1.

Put the emergency stop switch clip in the emergency stop switch, and attach the lanyard to your PFD

(Personal Flotation Device) or to your wrist, as shown.

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.

37

03/04/26 19:16:37 31ZW3600_039

OPERATION

N (neutral) START

POSITION

POINTER OFF

ON

START

THROTTLE GRIP

SHIFT LEVER

2.

Check the position of the gearshift lever. It must be in the N (neutral) position for starting.

The engine will not start if the gearshift lever is in the F (forward) or R (reverse) position.

3.

Align the engine start symbol

‘‘ ’’ on the tiller handle with the pointer ‘‘ ’’ on the throttle grip.


4.

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

03/04/26 19:16:49 31ZW3600_040

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.

5.

Before getting under way, allow 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.

27 ),

overheating indicator (p.

28 ) and

cooling system indicator (p.

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,

p.

84 .

OPERATION


(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 LANYARD

1.

Put the emergency stop switch clip in the emergency stop switch, and attach the lanyard to your PFD

(Personal Flotation Device) or to your wrist, as shown.

39

03/04/26 19:17:01 31ZW3600_041

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.

CONTROL

LEVER

N (neutral)

FAST IDLE

START

2.

Set the control lever in the N

(neutral) position.

The engine will not start if the F

(forward) or R (reverse) gears are engaged.

FAST IDLE LEVER

3.

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

03/04/26 19:17:11 31ZW3600_042

OPERATION

OFF

ON

START


4.

To start a cold engine, leave the fast idle lever in the START (fully lowered) position.

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.

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.

FAST IDLE LEVER

5.

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

03/04/26 19:17:23 31ZW3600_043

OPERATION

6.

Before getting under way, allow 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.



27 ),


28 ), and


29 ).

If the indicators show any abnormal condition, immediately stop the engine and determine the cause of the problem. Refer to

TAKING CARE OF


p.

84 .

EMERGENCY STARTING

If the battery is discharged, the starter motor is inoperative, you can start the engine manually using the emergency starter rope supplied with the motor.

(REAR) (FRONT)

6 × 25 mm

BOLTS

WASHERS

U N L O C K U N L O C K

ENGINE COVER LATCHES

1.

Unlatch and remove the engine cover.

WASHERS

FLYWHEEL COVER

2.

Remove the flywheel cover by unscrewing the four cover bolts.

3.

Set the controls the same as for

normal starting (see pages 37 −

42 ). Use the fast idle control if needed.


ON position.

42

03/04/26 19:17:39 31ZW3600_044

OPERATION

FLYWHEEL

EMERGENCY

STARTER

ROPE

KNOT

4.

Set the knotted end of the emergency starter rope in the notch in the flywheel. Wind the rope counterclockwise around the flywheel, as shown.

5.

Pull the emergency starter rope 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


p.

84 .

6.

If the fast idle control(s) was used to start the engine, return the control(s) to the normal operating position as the engine warms up.



27 ),


28 ), and


29 ).

7.

Install the engine cover (p.

24 ),

and lock it in place by latching the engine cover latches.

Exposed moving parts can cause injury.

Do not operate the outboard motor without the engine cover.

Use extreme care when installing the engine cover.

43

03/04/26 19:17:44 31ZW3600_045

OPERATION

8.

If it was necessary to remove the 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.

9.

Have your closest authorized

Honda marine dealer check your electrical system and correct the problem, so you can use the electric starter.

44

03/04/26 19:17:54 31ZW3600_046

STOPPING THE ENGINE

Emergency Engine Stopping



EMERGENCY

STOP SWITCH

P U L L

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.

OPERATION

Normal Engine Stopping



SLOW

THROTTLE GRIP

N (neutral)




EMERGENCY

STOP SWITCH

LANYARD

PULL

SWITCH CLIP

GEARSHIFT LEVER

45

03/04/26 19:18:04 31ZW3600_047

OPERATION



N (neutral)



OFF

CONTROL

LEVER

1.

Move the throttle grip to the slowest speed and control gears to

N (neutral) position.




O F F

IGNITION

SWITCH KEY

2.


OFF position to stop the engine.

3.

When the boat is not in use, remove and store the ignition key and the emergency stop switch clip and lanyard.

46

03/04/26 19:18:15 31ZW3600_048

OPERATION

GEARSHIFTING AND

THROTTLE OPERATION



POINTER

THROTTLE

GRIP

SLOW

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.

FAST

GEARSHIFT

LEVER N

(neutral)

R

(reverse)

F

(forward)


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

03/04/26 19:18:24 31ZW3600_049

OPERATION



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.

THROTTLE

FRICTION

ADJUSTER

TO INCREASE

FRICTION

TO DECREASE

FRICTION

Adjust the throttle friction adjuster so the control lever will hold a constant throttle setting while cruising.

48

03/04/26 19:18:34 31ZW3600_050

STEERING



Steering Friction Adjuster


FRICTION

PLATE

OPERATION



Steer the boat in the same manner as an automobile.

Steer by moving the tiller handle opposite the direction you want the boat to turn.

T O I N C R E A S E

F R I C T I O N

( L O C K )

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 f riction of the adjuster.

49

03/04/26 19:18:50 31ZW3600_051

OPERATION

CRUISING

Engine Speed

For best fuel economy, limit the throttle opening to 80%. Use the

throttle friction control (p.

47

and

48 ) to help you hold a steady speed.

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.

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 ‘‘plow’’.

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

50

antiventilation plate is level with the water.

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.

26 ) for an

indication of whether the motor is trimmed high or low.

03/04/26 19:19:05 31ZW3600_052

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.

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.




P r e s s U P t o t r i m o r t i l t t h e m o t o r u p .

P r e s s D N t o t r i m o r t i l t t h e m o t o r d o w n .



Excessive trim/tilt angle during operation can cause propeller ventilation, overheating, and water pump damage.

Press UP to trim or tilt the motor up.

Press DN to trim or tilt the motor down.

CONTROL LEVER

MOTOR

TRIMMED TOO

LOW

OPERATION

MOTOR

TRIMMED TOO

HIGH

ROUGH

WAVES

MOTOR

TRIMMED

CORRECTLY

BOW TOO LOW DUE TO

1.

2.

LOAD IN THE FRONT

MOTOR TRIMMED TOO LOW

BOW TOO HIGH DUE TO

1.

2.

LOAD IN THE REAR

MOTOR TRIMMED TOO HIGH

51

03/04/26 19:19:21 31ZW3600_053

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.

TIGHTENING

BOLT

TRIM TAB

SHALLOW WATER

OPERATION


When operating in shallow water, use

the power trim/tilt switch (p.

51 ) 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.

29 ) to be sure the

outboard motor is not tilted so high that the water intakes are out of the water.

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.

52

An excessive trim/tilt angle during operation can cause propeller ventilation, overheating, and water pump damage.

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°

0°

TRIM ANGLE

03/04/26 19:19:29 31ZW3600_054

OPERATION

ENGINE COVER GRIP

To tilt the outboard motor, move the tilt lever to the FREE position, then raise the outboard motor to the desired position by pulling on the engine cover grip.

Monitor water flow from the cooling

system indicator (p.

29 ) to be sure

the outboard motor is not tilted so high the water intake is out of the water.

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.

An excessive tilt angle during operation can cause propeller ventilation, overheating, and water pump damage.

F R E E

L O C K

TILT LEVER

To return the outboard motor to the normal operating position, move the tilt lever to the LOCK position, you may need to raise the outboard motor slightly to disengage the tilt mechanism, then slowly lower the outboard motor.

53

03/04/26 19:19:38 31ZW3600_055

OPERATION

MOORING, BEACHING,

LAUNCHING

LH Type

Use the tilt lever to raise and lower the outboard motor as described on

p.

53 .


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 back 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.

F R E E

TILT LOCK LEVER

(lock position)

L O C K

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

03/07/23 15:15:20 31ZW3600_056

RIGHT STERN BRACKET

MANUAL RELIEF

VALVE

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.

P O W E R

( T o f i x )

M A N U A L

( T o r e l e a s e )

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 screwdriver to turn the valve counterclockwise 2 and a half turns.

Close the valve firmly after positioning the engine.

OPERATION

55

03/04/26 19:19:54 31ZW3600_057

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

03/04/26 19:20:06 31ZW3600_058

MAINTENANCE SAFETY

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.


Safety Precautions

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.

Let the engine and exhaust 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.

57

03/04/26 19:20:14 31ZW3600_059


TOOL KIT (optional equipment) SPARE EMERGENCY STOP

SWITCH CLIP (LH and LHT

Types) AND EMERGENCY

STARTER ROPE

10 × 12 mm WRENCH

PLIERS

OIL CHECK SCREWDRIVER

18 × 19 mm SOCKET WRENCH

SPARE EMERGENCY STOP SWITCH

CLIP (LH and LHT Types) FLAT SCREWDRIVER

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

8 mm WRENCH

PHILLIPS SCREWDRIVER

TOOL BAG

SCREWDRIVER HANDLE

The above tool kit 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.

03/04/26 19:20:28 31ZW3600_060


MAINTENANCE SCHEDULE

REGULAR SERVICE PERIOD (3)

Perform at every indicated month or operating hour interval, whichever comes first.

Each use

ITEM

Engine oil

Gear case oil

Engine oil filter

Timing belt

Carburetor linkage

Idling speed

Valve clearance

Spark plug

Propeller and Cotter pin

Anode

Lubrication

Fuel tank and tank filter

Check level

Change

Change

Replace

Check-adjust

Check-adjust

Check-adjust

Check-adjust

Check-adjust

Replace

Check

Check

Grease

Clean

Emission related items.

(1) Lubricate more frequently when used in salt water.

○

○

○

After use

First month or

20 hrs.

○

○ (2)

○

○

○

(2)

(2)

(2)

○ (1)

Every 6 months or

100 hrs.

○

○

(2)

○

○

(2)

(2)

○

○ (1)

Every year or

200 hrs.

○

○

(2)

(2)

○ (2)

○

○

Every 2 years or

400 hrs.

(2) These items should be serviced by an authorized Honda marine dealer, unless you have the proper tools and are mechanically proficient.

Refer to the Honda shop manual for service procedures.

(3) For professional commercial use, log hours of operation to determine proper maintenance intervals.

(4) When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.

59

03/04/26 19:20:42 31ZW3600_061


REGULAR SERVICE PERIOD (3)

Perform at every indicated month or operating hour interval, whichever comes first.

Each use

ITEM

Thermostat

Fuel filter

Fuel line

Check

Check

Replace

Check

Replace

Checklevel-tightness Battery and cable connection

Bolts and nuts

Crankcase breather tube

Cooling water passages

Emission related items.

Check-tightness

Check

Clean

(1) Lubricate more frequently when used in salt water.

○

○

After use

○ (4)

First month or

20 hrs.

Every 2 years (If necessary) (2)

○ (2)

Every 6 months or

100 hrs.

○

○ (2)

Every year or

200 hrs.

○ (2)

○ (2)

Every 2 years or

400 hrs.

○

(2) These items should be serviced by an authorized Honda marine dealer, unless you have the proper tools and are mechanically proficient.

Refer to the Honda shop manual for service procedures.

(3) For professional/commercial use, log hours of operation to determine proper maintenance intervals.

(4) When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.

60

03/04/26 19:20:56 31ZW3600_062


TRIM TAB ADJUSTMENT

The trim tab compensates for

‘‘torque steer’’ which is a reaction of 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, 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.

LEFT

TRIM TAB

TIGHTENING BOLT

If less effort is required to make left turns, move the back of the trim tab left.

TRIM TAB

RIGHT

TIGHTENING BOLT

If less effort 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.

61

03/07/23 15:15:33 31ZW3600_063




RIGHT STERN BRACKET

MANUAL

RELIEF VALVE

P O W E R

( T o f i x )

M A N U A L

( T o r e l e a s e )

For manual tilting, use a flat screwdriver to turn the valve counterclockwise 2 and a half turns.

Close the valve firmly after positioning the outboard motor.

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

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.

(FRONT)

ENGINE COVER

LATCH

U N L A T C H

(REAR)

F I X

UNLATCH


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.

F I X

62

03/04/26 19:21:19 31ZW3600_064


Engine Oil Level Check

Check the engine oil level with the engine stopped and the outboard motor in the vertical position.

1.

Unlatch and remove the engine cover.

2.

Remove the dipstick and wipe it clean.

OIL LEVEL DIPSTICK

OIL FILLER CAP

UPPER

LIMIT

LOWER

LIMIT

4.

If the oil level is low, remove the 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.

5.

Install the oil filler cap and tighten it securely.

6.

Install and lock the engine cover.

3.

Insert the dipstick all the way in, then remove it and check the oil level shown on the dipstick.

63

03/04/26 19:21:28 31ZW3600_065


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.

1.

Unlatch and remove the engine

cover (p.

62 ). Remove the oil

filler cap.

DRAIN PLUG COVER

SCREW

2.

Loosen the drain plug cover screw using a flat blade screwdriver and remove the drain plug cover.

DRAIN PLUG COVER

3.

Place the drain plug cover as shown to use it as an oil drain guide. Place a suitable container under the guide.

64

03/04/26 19:21:39 31ZW3600_066

SEALING WASHER

DRAIN

BOLT

4.

Remove the engine oil drain bolt and washer.

5.

Allow the used oil to drain completely, then install a new sealing washer on the engine oil drain bolt, and tighten it securely.

6.

Reinstall the drain plug cover.


Improper disposal of engine oil can be harmf ul 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 or dump it on the ground.

7.

With the outboard motor in a vertical position, fill to the upper

limit mark on the dipstick (p.

63 )

with the recommended oil.

Engine oil refill capacity:

Without oil filter change:

2.1 US qt (2.0 )

With oil filter change:

2.5 US qt (2.4 )

8.

Install the oil filler cap and tighten it securely.

9.


65

03/04/26 19:21:45 31ZW3600_067


Engine Oil Recommendations

Oil is a major factor affecting performance and service life. Use

4-stroke automotive detergent oil.

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 or SJ oil with the ‘‘starburst’’ certification mark displayed on the container.

SAE Viscosity Grades

AMBIENT TEMPERATURE

SAE 5W-30 is recommended for general use.

66

03/04/26 19:21:54 31ZW3600_068


Lubrication Points

Wipe the outside of the engine with a cloth dipped in oil.

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 ).

TILT SHAFT TILLER HANDLE

To prevent corrosion, apply anticorrosion oil to pivot surf aces where grease cannot penetrate.

SWIVEL CASE

PROPELLER SHAFT SWIVEL CASE

Apply Honda Marine Corrosion Inhibitor (or equivalent) to all areas under the engine cover except the belts.

67

03/04/26 19:22:05 31ZW3600_069


Spark Plug Service

RECOMMENDED SPARK PLUGS:

DR7EA (NGK)

X22ESR-U (DENSO)

Incorrect spark plugs can cause engine damage.

1.

Unlatch and remove the engine

cover (p.

62 ).

2.

Disconnect the spark plug caps from the spark plugs.

3.

Remove the spark plugs with a spark plug wrench.

0.024

− 0.028 in

(0.60

− 0.70 mm)

SEALING WASHER

SPARK PLUG

WRENCH

SPARK PLUG CAPS

4.

Inspect the spark plugs. Replace them if the electrodes are worn, or if the insulators are cracked or chipped.

5.

Measure the spark plug electrode gap with a suitable gauge. The gap should be 0.024

− 0.028 inches

(0.60

− 0.70 mm).

68

03/04/26 19:22:14 31ZW3600_070


7.

After each spark plug seats, tighten 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.

6.

Install the spark plugs carefully, by hand, to avoid cross-threading.

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.


69

03/04/26 19:22:30 31ZW3600_071


REFUELING

Portable Fuel Tank


FUEL TANK CAPACITY:

6.6 US gal (25 )

FUEL GAUGE

SAFE FILL LEVEL Check the fuel gauge and refill the tank when necessary.

Remove the fuel tank from the boat for refueling.

VENT KNOB

C L O S E

O P E N

FUEL CAP

To refuel, turn the vent knob counterclockwise to the OPEN position, and unscrew the fuel tank cap.

70

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.






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.


03/04/26 19:22:37 31ZW3600_072


FUEL RECOMMENDATIONS

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 Distributor’s Limited

Warranty does not cover parts damaged by misuse.

71

03/04/26 19:22:47 31ZW3600_073


Fuel Pump Filter Inspection and Replacement

The fuel pump 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.






P U L L

PUSH


1.

Disconnect the fuel hose connector from the outboard motor.

72

03/04/26 19:22:56 31ZW3600_074


HOSE CLAMP GRIPPERS

(commercially available)

FUEL HOSE CLIPS

4.

Place clamps on the fuel hoses on each side of the filter to prevent fuel leakage when the fuel hoses are disconnected.

FUEL PUMP

FUEL

HOSE

CLIPS

SPRING

RETAINR

FUEL FILTER

2.

Pull the spring retainer toward you, and raise the fuel filter.

FUEL HOSES

3.

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.

60 ).

ARROW

(fuel flow direction)

FUEL FILTER

5.

Install the new fuel filter so the arrow on the fuel filter points toward the fuel pump.

Fuel flow will be reduced if the fuel filter is installed backward.

73

03/04/26 19:23:07 31ZW3600_075


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.

7.

Securely connect the fuel hose connector to the outboard motor

(refer to page 36 ).

8.

Prime the engine using the priming

bulb (p.

37 ). 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.

Portable Fuel Tank and Filter

Cleaning


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.

Fuel Tank Filter

TANK FILTER JOINT

(Fuel Connector)

FILTER

1.

Unscrew the fuel hose connector by turning it counterclockwise, then remove the fuel hose connector and fuel filter from the tank.

2.

Clean the filter in nonflammable solvent. Inspect the fuel tank filter and the connector O-ring. Replace them if damaged.

3.

Reinstall the filter and hose connector in the fuel tank. Tighten the hose connector securely.

74

03/04/26 19:23:13 31ZW3600_076

Anode Replacement

ANODE

(trim tab)


The anodes are located on the trim tab and the stern bracket. 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.

ANODE

(stern bracket)

75

03/04/26 19:23:25 31ZW3600_077


Propeller Replacement

Before replacing the propeller, remove the clip from the engine 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.

Removal

Remove the cotter pin, unscrew the castle nut, remove the washers, then remove the propeller and thrust washer.

Installation

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 cotter pin and bend the pin ends as shown.

MARINE GREASE

SPECIAL SPLINE WASHER

PLAIN WASHER

CASTLE NUT

THRUST WASHER

PROPELLER

COTTER PIN

(stainless)

COTTER PIN

(stainless)

76

03/04/26 19:23:37 31ZW3600_078

STORAGE

STORAGE PREPARATION

Proper storage preparation is essential for keeping your outboard motor troublefree and looking good.

The following steps will help to keep rust and corrosion from impairing your outboard motor’s function and appearance, and will make the engine easier to start when you use the outboard motor again.

Cleaning and Flushing

Thoroughly clean and flush the outboard motor with fresh 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.

76 ).

WASH PLUG (flush plug)

1.

Remove the wash plug and sealing 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.

77

03/04/26 19:23:46 31ZW3600_079

STORAGE

GARDEN HOSE ADAPTER

(FLUSH KIT COUPLER)

4.

Move the gearshift lever or control lever to the N (neutral) position.

Flush the outboard motor in the neutral position only.

5.

Turn on the fresh water supply to the flush kit coupler.

2.

Remove the sealing washer from the wash plug and install the sealing washer on the flush kit coupler.

3.

Install the flush kit coupler into the

WASH plug hole and connect a fresh water hose to the garden hose adapter.

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.


6.

Start the engine. Monitor the 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.

78

03/04/26 19:23:53 31ZW3600_080

STORAGE

7.

Allow the engine to run at idle for at least 5 minutes to clean the inside of the motor.

8.

Stop the motor and remove the garden hose adapter.

9.

Remove the sealing washer from 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.

10.

Install the wash plug into the gear case securely.

WATER INTAKES

WATER INTAKES

79

03/04/26 19:24:03 31ZW3600_081

STORAGE

Fuel

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 within a few months, or even less if the gasoline was not fresh when you filled the fuel tank.

The Distributor’s Limited Warranty does not cover fuel system damage or engine performance problems resulting from neglected storage preparation.

You can avoid fuel deterioration problems by draining the fuel tank and carburetors.

1.

Disconnect the fuel hose from the outboard motor.

DRAIN SCREW

2.

With the outboard motor in a vertical position, place an approved gasoline container below the fuel drain outlet, and use a funnel to avoid spilling fuel.

80






03/04/26 19:24:17 31ZW3600_082

＃ 2 CARBURETOR

DRAIN SCREW


DRAIN SCREW

DRAIN

TUBE


DRAIN SCREW

5.

Repeat this procedure to drain ＃ 3 carburetor.

6.

After all three carburetors are drained, reinstall the drain tube on

＃ 1 carburetor.

7.

Drain the fuel tank into an 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.

3.

Loosen the drain screw on ＃ 1 carburetor, allow the carburetor to drain completely, then tighten the drain screw securely.

4.

Remove the drain tube from ＃ 1 carburetor, install it on ＃ 2 carburetor, and drain that carburetor in the same manner.

STORAGE

Engine Oil

1.

Change the engine oil (p.

64 ).

2.

Remove the spark plugs (p.

68 ),

and remove the clip from the emergency stop switch.

3.

Pour a tablespoon (5 − 10 cm ) of clean engine oil into each cylinder.

4.

Using the emergency starter rope

(p.

43 ), rotate the flywheel a few

revolutions to distribute the oil in the cylinders.

5.

Reinstall the spark plugs (p.

68 ).

81

03/04/26 19:24:28 31ZW3600_083

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 stand.

CASE PROTECTORS

If it is necessary to store the outboard motor horizontally, drain the

carburetor (p.

80 ), and drain the

engine oil (p.

64 ), before removing

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 BEFORE

OPERATION chapter of this manual.

If the cylinders were coated with oil during storage preparation, the engine may smoke briefly at startup.

This is normal.

82

OUTBOARD MOTOR STAND

03/04/26 19:24:40 31ZW3600_084

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.






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.

T O I N C R E A S E

F R I C T I O N

( L O C K )

T O D E C R E A S E

F R I C T I O N

( F R E E )

Tighten the steering friction adjuster to prevent the outboard motor from moving while trailering the boat.

MOTOR SUPPORT BAR

(commercially available)

TRANSPORTING

WITH OUTBOARD MOTOR

REMOVED FROM BOAT

Secure the outboard motor in either the vertical or horizontal position

shown on p.

82 .

83

03/04/26 19:24:52 31ZW3600_085

TAKING CARE OF UNEXPECTED PROBLEMS

ELECTRIC STARTER WILL

NOT OPERATE

1.

Check battery.

Possible Cause

2.

Check fuse.

3.

Use emergency starting

procedure (p.

42 ), then take

outboard motor to an authorized

Honda Marine dealer, or refer to the shop manual.

Battery connections loose or corroded.

Battery discharged.

Fuse burnt out.

Starter malfunction, switch malfunction, or electrical problem in the starting circuit.

Correction

Clean and tighten battery connections.

Recharge battery.

Replace fuse (p.

89 ).

Replace or repair faulty components as necessary.

84

03/04/26 19:25:03 31ZW3600_086

ENGINE WILL NOT START

1.

Check emergency stop switch clip.

2.

Check control positions.


Possible Cause

Clip not inserted in stop switch.

Correction

Insert clip 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 not raised (sidemount type).

Shift to neutral (p.

38 and 40 ).

Turn throttle grip to START

position (p.

38 ).

Raise fast idle lever, unless engine

is warm (p.

40 ).

85

03/04/26 19:25:21 31ZW3600_087


86

ENGINE WILL NOT START

(continued)

3.

Check fuel.

5.

Take outboard motor to an authorized Honda Marine dealer, or refer to the shop manual.

Possible Cause

4.

Remove and inspect spark plugs.

Out of fuel.

Fuel vent closed (portable fuel tank − optional equipment).

Fuel hose not primed.

Fuel pump filter or fuel tank filter clogged.

Bad fuel; boat stored without treating or draining gasoline, or refueled with bad gasoline.

Spark plugs faulty, fouled or improperly gapped.

Spark plugs wet with fuel (flooded engine).

Carburetor malfunction, fuel pump failure, ignition malfunction, stuck valves, etc.

Correction

Refuel (p.

70 ).

Open fuel tank vent (p.

30 ).

Squeeze priming bulb (p.

31 ).

Replace fuel filters (p.

72 and 74 ).

Drain fuel tank and carburetors

(p.

80 ). Refill with fresh gasoline

(p.

70 ).

Gap or replace spark plugs (p.

68 ).

Dry and reinstall spark plugs. Start engine with the throttle open.


03/04/26 19:25:35 31ZW3600_088


HARD STARTING OR STALLS

AFTER STARTING

1.

Check control positions.

2.

Check fuel.

Possible Cause

Throttle grip not in START position (long tiller-handle type).

Fast idle lever not raised (sidemount type).

Fuel vent closed (portable fuel tank − optional equipment).

Fuel hose not primed.

Fuel pump filter or fuel tank filter clogged.

Bad fuel; boat stored without treating or draining gasoline, or refueled with bad fuel.

Correction

Turn throttle grip to START

(p.

38 ).

Raise fast idle lever, unless engine

is warm (p.

40 ).

Open fuel tank vent (p.

30 ).

Squeeze priming bulb (p.

31 ).

Replace fuel filters (p.

72 and 74 ).

Drain fuel tank and carburetors

(p.

80 ). Refill with fresh gasoline

(p.

70 ).

87

03/04/26 19:25:49 31ZW3600_089


HARD STARTING OR STALLS

AFTER STARTING

(continued)

3.

Remove and inspect spark plugs.

Possible Cause

4.


Spark plugs faulty, fouled or improperly gapped.

Carburetor malfunction, fuel pump failure, ignition malfunction, etc.

Correction

Gap or replace spark plugs (p.

68 ).


ENGINE OVERHEATS

1.

Check water intake screens.

2.


Possible Cause

Water intake screens clogged.

Faulty thermostat or water pump.

Correction

Clean water intake screens.


88

03/04/26 19:26:04 31ZW3600_090

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 also protected by the 15-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

1.

With the engine stopped, remove the engine cover.

2.

Remove the fuse cover.


3.

Remove and inspect the fuse. If a fuse is burnt out, install a replacement fuse of the specified rating. The outboard motor is supplied with spare fuse in the fuse holder.

DESIGNATED FUSE: 15A, 10A

FUSE COVER

10A FUSE

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

SPARE 10A FUSE

BLOWN FUSE

4.

Reinstall the fuse cover and the 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.

89

03/07/23 15:15:44 31ZW3600_091


OIL PRESSURE INDICATOR

LIGHT GOES OFF AND

ENGINE SPEED IS LIMITED

(GREEN)

(long tiller handle type)

(GREEN)

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 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.

63 ), and add oil if needed.

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.

BUZZER

(remote control type)

90

03/07/23 15:15:54 31ZW3600_092

(RED)


OVERHEATING INDICATOR

LIGHT COMES ON AND

ENGINE SPEED IS LIMITED

(RED)

(long tiller handle type)

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.

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.


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.

BUZZER

(remote control type)

91

03/07/23 15:16:04 31ZW3600_093


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 restricted, clean the water intake screens, return the outboard motor to the running position, restart the engine, and check the cooling system indicator again.

If there is still no water flowing from 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.

If there is a Honda marine dealer nearby, take the motor to the dealer immediately. If you are far from a dealer, proceed as follows:

1.

Remove the engine cover, and rinse the outboard motor with fresh water to remove salt water, sand, mud, etc.

2.

Drain the carburetors as described

on p.

80 .

3.

Change the engine oil as described

on p.

64 − 65 . 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.

EMERGENCY STARTER ROPE

4.

Remove the spark plugs (p.

68 ),

and remove the clip from the engine switch. Pull the emergency starter rope, rotate the flywheel a few revolutions to completely expel any water from the cylinders.

92

03/04/26 19:26:44 31ZW3600_094


If the engine was running when it 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 f rom the emergency stop switch to prevent possible damage to the ignition system.

7.

Attempt to start the engine.

If the engine fails to start, remove the spark plugs, dry them, then reinstall the spark plugs and attempt to start the engine again.

5.

Pour a teaspoon of engine oil into each spark plug hole, then pull the recoil starter grip several times to lubricate the inside of the cylinders.

6.

Reinstall the spark plugs, and put the emergency stop switch clip into the switch.

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.

8.

As soon as possible, take the outboard motor to an authorized

Honda Marine dealer for inspection and service.

93

03/04/26 19:26:53 31ZW3600_095

TECHNICAL AND CONSUMER INFORMATION

TECHNICAL INFORMATION

Serial Number Locations

Record the product identification number and engine serial number 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:

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:

94

03/04/26 19:27:01 31ZW3600_096


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 f eet (1,500 meters) with modif ied 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)

95

03/04/26 19:27:13 31ZW3600_097


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: ethyl or grain alcohol;

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: Methyl Tertiary Butyl Ether;

15% by volume.

You may use gasoline containing up to 15% MTBE by volume.

METHANOL: methyl or wood 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

96

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.

03/04/26 19:27:23 31ZW3600_098


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.

The U.S. and Calif ornia Clean

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 Altering

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.

97

03/04/26 19:27:35 31ZW3600_099


Problems That May Af f ect

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 Parts

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.

59 . Remember that this schedule

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.

98

03/04/26 19:27:47 31ZW3600_100

Star Label

A Star label was applied to this outboard motor in accordance with the requirements of the California

Air Resources Board.


The Star Label means Cleaner Marine Engine

This engine has been certified as a:

The Symbol for Cleaner Marine Engines:

Cleaner Air and Water for healthier lifestyle and environment.

Better Fuel Economy burns up to 30 - 40 percent less gas and oil than conventional carbureted two-stroke engines, saving money and resources.

Longer Emission Warranty protects consumer for worry free operation.

99

03/04/26 19:27:58 31ZW3600_101


One Star

Low

Emission

Two Stars

Very Low

Emission

The one-star label identifies engines that meet the Air Resources Board’s

Personal Watercraft and Outboard marine engine 2001 exhaust emission standards. Engines meeting these standards have 75% lower emissions than conventional carbureted two-stroke engines. These engines are equivalent to the U.S.EPA’s 2006 standards for marine engines.

The two-star label identifies engines that meet the Air Resources Board’s

Personal Watercraft and Outboard marine engine 2004 exhaust emission standards. Engines meeting these standards have 20% lower emissions than

One Star-Low Emission engines.

Three Stars

Ultra Low

Emission

Four Stars

Super Ultra

Low Emission

The three-star label identifies engines that meet the Air Resources Board’s

Personal Watercraft and Outboard marine engine 2008 exhaust emission standards or the Sterndrive and inboard marine engine 2003-2008 exhaust emission standards. Engines meeting these standards have 65% lower emissions than One Star-Low Emission engines.

The four-star label identifies engines that meet the Air Resources Board’s

Sterndrive and Inboard marine engine 2009 exhaust emission standards.

Personal Watercraft and Outboard marine engines may also comply with these standards. Engines meeting these standards have 90% lower emissions than One Star-Low Emission engines.

Cleaner Watercraft - Get the Facts

1-800-END-SMOG www.arb.ca.gov

100

03/04/26 19:28:36 31ZW3600_102


Specifications

MODEL

Description Code

Type

Overall length

Overall width

Overall height

Transom height

Weight

Rated power

Full throttle range

Engine type

Displacement

Starter system

Ignition system

Lubrication system

Specified oil

L

L

L

H

BF40A

BAYS

HT

30.3 in

(770 mm)

14.6 in (370 mm)

53.7 in (1,365 mm)

210.5 lbs

20.5 in (520 mm)

214.9 lbs

(95.5 kg) (97.5 kg)

RT

27.0 in

(685 mm)

205 lbs

(93 kg)

29.8 kW (40 HP)

5,000 − 6,000 rpm

4 stroke OHC in-line 3 cylinder

49.3 cu-in (808 cm )

Electric starter

C.D.I.

Trochoid pump pressure lubrication

Engine: API standard (Fuel Efficient SG,

SH, SJ) SAE 5W-30

Gear case: API standard (GL-4/5) SAE

90 outboard motor gear oil

Oil capacity

CARB star label

D.C. output

Cooling system

Exhaust system

Spark plugs

Fuel pump

Fuel

Tank capacity

Gear change

Steering angle

Transom angle

Tuneup

Spark plug gap

Idle speed

Valve clearance

(cold)

Other specifications

Engine: 2.5 US qt (2.4 )

Gear case: 0.43 US qt (0.41 )

ULTRA · LOW EMISSION

12V − 10A

Water cooling with thermostat

Thru-hub

DR7EA (NGK)

X22ESR-U (DENSO)

Diaphragm type

Automotive unleaded gasoline

(86 pump octane or higher)

6.6 US gal (25 )

Forward-Neutral-Reverse (dog type)

37.5° right and left

5 stages (8°, 12°, 16°, 20°, 24°)

0.024

− 0.028 in

(0.60

− 0.70 mm)

950 ± 50 rpm

See page 68

See shop manual

Intake:

Exhaust:

0.15

± 0.02 mm

0.23

± 0.02 mm

See shop manual

No other adjustment is needed

Honda outboards are power rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.

101

03/04/26 19:29:15 31ZW3600_103


Specifications

MODEL

Description Code

Type

Overall length

Overall width

Overall height

Transom height

Weight

Rated power

Full throttle range

Engine type

Displacement

Starter system

Ignition system

Lubrication system

Specified oil

L

X

L

X

L

X

HT

30.3 in (770 mm)

BF50A

BAZS

RT

27.0 in (685 mm)

14.6 in (370 mm)

53.7 in (1,365 mm)

57.9 in (1,470 mm)

20.5 in (521 mm)

24.5 in (622 mm)

214.9 lbs (97.5 kg) 205 lbs (93 kg)

214 lbs (97 kg)

37.3 kW (50 HP)

5,500 − 6,000 rpm

4 stroke OHC in-line 3 cylinder

49.3 cu-in (808 cm )

Electric starter

C.D.I.

Trochoid pump pressure lubrication

Engine: API standard (Fuel Efficient

SG, SH, SJ) SAE 5W-30

Gear case: API standard (GL-4/5) SAE

90 outboard motor gear oil

Oil capacity

CARB star label

D.C. output

Cooling system

Exhaust system

Spark plugs

Fuel pump

Fuel

Tank capacity

Gear change

Steering angle

Transom angle

Tuneup

Spark plug gap

Idle speed

Valve clearance

(cold)

Other specifications

Engine: 2.5 US qt (2.4 )

Gear case: 0.43 US qt (0.41 )

ULTRA · LOW EMISSION

12V − 10A

Water cooling with thermostat

Thru-hub

DR7EA (NGK)

X22ESR-U (DENSO)

Diaphragm type

Automotive unleaded gasoline (86 pump octane or higher)

6.6 US gal (25 )

Forward-Neutral-Reverse (dog type)

37.5° right and left

5 stages (8°, 12°, 16°, 20°, 24°)

0.024

− 0.028 in

(0.60

− 0.70 mm)

950 ± 50 rpm

See page 68

See shop manual

Intake:

Exhaust:

0.15

± 0.02 mm

0.23

± 0.02 mm

See shop manual

No other adjustment is needed

Honda outboards are power rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.

102

03/04/26 19:29:31 31ZW3600_104


CONSUMER INFORMATION

Honda Publications

These publications will give you additional information for maintaining and repairing your outboard motor. You may purchase them from your Honda marine dealer.

Shop Manual

This manual covers complete maintenance and overhaul procedures.

It is intended to be used by a skilled technician.

Parts Catalog

This manual provides complete, illustrated parts lists.

Warranty Service Information

Honda Marine dealership personnel are trained professionals. They should be able to answer any question you may have. If you encounter a problem that your dealer does not solve to your satisfaction, please discuss it with the dealership’s management. The Service Manager or General Manager can help. Almost all problems are solved in this way.

If you are dissatisfied with the decision made by the dealership’s management, contact the Honda

Marine Customer Relations Office.

You can write:

American Honda Motor Co., Inc.

Marine Division

Customer Relations Office

4900 Marconi Drive

Alpharetta, Georgia 30005-8847

Or telephone: (770) 497-6400

When you write or call, please give us this information:

Model and serial numbers (p.

94 )

Name of the dealer who sold the outboard motor to you

Name and address of the dealer who services your outboard motor

Date of purchase

Your name, address, and telephone number

A detailed description of the problem

103

03/04/26 19:29:36 31ZW3600_105

INDEX

Anodes ...........................................................................

. 29

Replacement ..............................................................

ARE YOU READY TO GET UNDER WAY ？ .........

. 75

. 32

Battery ...........................................................................

. 95

BATTERY WILL NOT CHARGE AND

ELECTRIC STARTER WILL NOT

OPERATE .............................................................

. 89

BEFORE OPERATION ................................................

. 32

BREAK-IN PROCEDURE ...........................................

. 34

Carburetor Modification for High Altitude

Operation ...................................................................

. 95

Common Controls .........................................................

COMPONENT AND CONTROL LOCATIONS ........

. 23

. 11

CONSUMER INFORMATION .................................

. 103

CONTROLS ..................................................................

. 16

CONTROLS AND FEATURE IDENTIFICATION

CODES ......................................................................

. 10

CONTROLS AND FEATURES

CRUISING

..................................

Cooling System Indicator ..............................................

. 29

....................................................................

. 10

. 50

EMERGENCY STARTING .........................................

. 42

Emission Control System Information .........................

Emergency Stop Switch and Switch Clip .....................

. 97

. 16

Engine

Cover

Latches ..................................................................

. 24

REMOVAL AND INSTALLATION ...................

. 62

Oil

Change ...................................................................

. 64

Level Check ..........................................................

Recommendations .................................................

. 63

. 66

Fast Idle Lever (side-mount type) .................................

. 21

Fuel

Cap Vent Knob (optional equipment) .......................

. 30

HOSE CONNECTIONS ...........................................

. 36

Gauge (optional equipment) ......................................

. 26

PRIMING ..................................................................

Priming Bulb .............................................................

. 37

. 31

RECOMMENDATIONS ..........................................

Pump Filter Inspection and Replacement .................

. 71

. 72

104

03/04/26 19:29:40 31ZW3600_106

INDEX

Gearshift Lever ..............................................................

. 18

Gearshift/Trottle Control Lever


Side-Mount Type ..................................................

. 21



....................

. 47

.....................

. 48

Ignition Switch



....................

. 16

Side-Mount Type ..................................................

. 19

IMPORTANT SAFETY INFORMATION ....................

. 7

INDEX .........................................................................

. 104

INDICATORS ...............................................................

. 27

INSTRUMENTS ...........................................................

. 26

IS YOUR OUTBOARD MOTOR

READY TO GO ？ ....................................................

. 32

Lubrication Points .........................................................

. 67

MAINTENANCE SAFETY .........................................

. 57

MAINTENANCE SCHEDULE ...................................

. 59

MANUAL RELIEF VALVE ..................................

. 24, 62

MOORING, BEACHING, LAUNCHING ...................

. 54

Oil Pressue Indicator .....................................................

OIL PRESSURE INDICATOR LIGHT GOES

. 27

OFF AND ENGINE SPEED IS LIMITED

OPERATION

..............

................................................................

. 90

. 34

OTHER FEATURES ....................................................

. 29

OUTBOARD MOTOR SAFETY ...................................

. 7

Overheating Indicator ....................................................

. 28

OVERHEATING INDICATOR LIGHT COMES

ON AND ENGINE SPEED IS LIMITED ...............

. 91

Overrev Limiter .............................................................

. 29

Oxygenated Fuels ..........................................................

. 96

Portable Fuel Tank and Filter Cleaning

(optional equipment) .................................................

. 74

Power Tilt Switch ..........................................................

. 23

Power Trim/Tilt Switch

Propeller Replacement

................................................

. 23

..................................................

. 76

105

03/04/26 19:29:44 31ZW3600_107

INDEX

REFUELING .................................................................

. 70

REMOVAL FROM STORAGE ...................................

. 82

SAFE OPERATING PRECAUTIONS

SAFETY LABEL LOCATIONS

........................

. 34

....................................

. 9

Serial Number Locations ...............................................

. 94

SERVICING YOUR OUTBOARD MOTOR ..............

. 56

SHALLOW WATER OPERATIONS ..........................

. 52

Spark Plug Service

Specifications

........................................................

..............................................................

. 68

. 101

Star Label ......................................................................

. 99

STARTING THE ENGINE



....................

. 37

.....................

. 40

STEERING ....................................................................

. 49

LH and LHT Types (long tiller handle) ....................

. 49


Steering Friction Adjuster

.....................

.......................................

. 49

. 18, 49

STOPPING THE ENGINE ...........................................

. 45

Emergency Engine Stopping .....................................

. 45

Normal Engine Stopping ...........................................

. 45

STORAGE ....................................................................

. 77

STORAGE PRECAUTIONS ........................................

. 82

STORAGE PREPARATION ........................................

. 77

Cleaning and Flushing

Engine oil

..............................................

..................................................................

. 77

. 81

Fuel ............................................................................

. 80

SUBMERGED MOTOR ...............................................

. 92

Switch Clip and Emergency Stop Switch


Side-Mount Type ..................................................

. 20

Tachometer (optional equipment) .................................

. 26

TAKING CARE OF UNEXPECTED PROBLEMS ....

. 84

TECHNICAL INFORMATION ...................................

. 92

THE IMPORTANCE OF MAINTENANCE ...............

. 56

Throttle Friction Adjuster .............................................

. 18

Throttle Grip ..................................................................

. 17

Tilt Lever (gas assisted/LH type) ..................................

. 19

Tilt Lock Lever ..............................................................

. 24

TOOL KIT (optional equipment)AND

EMERGENCY STARTER ROPE ...........................

. 58

TRANSOM ANGLE ADJUSTMENT

Transom Angle Adjusting Rod

.........................

.....................................

. 35

. 25

106

03/04/26 19:29:47 31ZW3600_108

TRANSPORTING ........................................................

WITH OUTBOARD MOTOR INSTALLED

. 83

ON BOAT .............................................................

WITH OUTBOARD MOTOR REMOVED

. 83

FROM BOAT .......................................................

. 83

Trim Meter (optional equipment)

Trim Tab ..................................................................

. 25, 52

TRIM TAB ADJUSTMENT

.................................

. 26

........................................

. 61

WIRING DIAGRAMS ........................

. Inside Back Cover

INDEX

107

A3yoko 03.7.30 4:07 PM ページ 1

A3yoko 03.7.30 4:07 PM ページ 2

A3yoko 03.7.30 4:07 PM ページ 3

出力用 03.7.30 1:41 PM ページ 1

31ZW3601

00X31-ZW3-6010

EM3 AH 英 N HC 1000.2003.07

Printed in Japan C 2003 Honda Motor Co., Ltd. -All Rights Reserved

PANTONE 288 CVC DIC F101 BLACK

2004

Honda BF40A Owner's Manual 113 Pages

Honda BF40A Owner's Manual

INTRODUCTION

INTRODUCTION

A FEW WORDS ABOUT

SAFETY

2

CONTENTS

CONTENTS

CONTENTS

CONTENTS

IMPORTANT SAFETY

INFORMATION

OUTBOARD MOTOR SAFETY

Operator Responsibility

7

OUTBOARD MOTOR SAFETY

Refuel With Care

Carbon Monoxide Hazard

8

SAFETY LABEL LOCATIONS

OUTBOARD MOTOR SAFETY

9

CONTROLS AND FEATURES

CONTROL AND FEATURE IDENTIFICATION CODES

10

CONTROLS AND FEATURES

COMPONENT AND CONTROL LOCATIONS

LH and LHT Types

(long tiller handle)

11

CONTROLS AND FEATURES

CONTROLS AND FEATURES

LRT and XRT Types (remote control)

13

CONTROLS AND FEATURES

Remote Control box (side mount type/optional equipment)

14

Fuel Tank (optional equipment)

CONTROLS AND FEATURES

Tachometer

(optional equipment)

Trim Meter

(optional equipment)

15

CONTROLS AND FEATURES

CONTROLS

LH and LHT Types

(long tiller handle)

Ignition Switch

Emergency Stop Switch and

Switch Clip

16

Throttle Grip

CONTROLS AND FEATURES

CONTROLS AND FEATURES

Throttle Friction Adjuster

Gearshif t Lever

Steering Friction Adjuster

Tilt Lever

(gas assisted/LH type)

CONTROLS AND FEATURES

LRT and XRT Types

(remote control/optional equipment)

Ignition Switch

(side-mount type)

19

CONTROLS AND FEATURES

Switch Clip and Emergency Stop

Switch (side-mount type)

Fast Idle Lever

(side-mount type)

CONTROLS AND FEATURES

Gearshif t/Throttle Control

Lever (side-mount type)

CONTROLS AND FEATURES

Common Controls

Power Trim/Tilt Switch

[LRT and XRT types (sidemount type)]

(LHT type)