Honda BF40 А, BF50 А Owner's Manual

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C 2003 Honda Motor Co., Ltd. -All Rights Reserved
2004
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.

INTRODUCTION

Congratulations on your selection of a Honda outboard motor. We are certain you will be pleased with your purchase of one of the finest outboard motors on the market.
We want to help you get the best results from your new outboard motor and to operate it safely. This manual contains 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
1
INTRODUCTION

A FEW WORDS ABOUT SAFETY

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

CONTENTS

...................................OUTBOARD MOTOR SAFETY . 7
................................SAFETY LABEL LOCATIONS . 9
..................................CONTROLS AND FEATURES . 10
CONTROL AND FEATURE
................................IDENTIFICATION CODES . 10
..............................................................CONTROLS . 16
LH and LHT Types (long tiller handle)
......................................................Ignition Switch . 16
..........................................................Throttle Grip . 17
.....................................Throttle Friction Adjuster . 18
.....................................................Gearshift Lever . 18
.....................................Steering Friction Adjuster . 18
..........................Tilt Lever (gas 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
................IMPORTANT SAFETY INFORMATION . 7
....COMPONENT AND CONTROL LOCATIONS . 11
.............Emergency Stop Switch and Switch Clip . 16
Common Controls
Power Trim/Tilt Switch (LRT and XRT types)
..............................................(side-mount type) . 23
...Power Tilt Switch (LHT, LRT and XRT types) . 23
Manual Relief Valve
.............................(LHT, LRT and XRT types) . 24
.....................................................Tilt Lock Lever . 24
...........................................Engine Cover Latches . 24
.............................Transom Angle Adjusting Rod . 25
................................................................Trim Tab . 25
.......................................................INSTRUMENTS . 26
.........................Trim Meter (optional equipment) . 26
.........................Tachometer (optional equipment) . 26
.........................Fuel Gauge (optional equipment) . 26
...........................................................INDICATORS . 27
............................................Oil Pressure Indicator . 27
...........................................Overheating Indicator . 28
.....................................Cooling System Indicator . 29
3
CONTENTS
................................................OTHER FEATURES . 29
.....................................................Overrev Limiter . 29
...................................................................Anodes . 29
.................................................Fuel Priming Bulb . 31
................................................BEFORE OPERATION . 32
IS YOUR OUTBOARD MOTOR
................................................READY TO GO . 32
................................................................OPERATION . 34
.......................................BREAK-IN PROCEDURE . 34
................................FUEL HOSE CONNECTIONS . 36
.......................................................FUEL PRIMING . 37
.............Portable Fuel Tank (optional equipment) . 30
..........Fuel Cap Vent Knob (optional equipment) . 30
.....ARE YOU READY TO GET UNDER WAY . 32
....................SAFE OPERATING PRECAUTIONS . 34
.....................TRANSOM ANGLE ADJUSTMENT . 35
....PORTABLE FUEL TANK (optional equipment) . 36
......................................STARTING THE ENGINE . 37
................LH and LHT Types (long tiller handle) . 37
.................LRT and XRT Types (remote control) . 39
.....................................EMERGENCY STARTING . 42
.......................................STOPPING THE ENGINE . 45
................................Emergency Engine Stopping . 45
.......................................Normal Engine Stopping . 45
GEARSHIFTING AND
..............................THROTTLE OPERATION . 47
................LH and LHT Types (long tiller handle) . 47
.................LRT and XRT Types (remote control) . 48
...............................................................STEERING . 49
................LH and LHT Types (long tiller handle) . 49
.................LRT and XRT Types (remote control) . 49
................................................................CRUISING . 50
................................................................TRIM TAB . 52
......................SHALLOW WATER OPERATIONS . 52
...............MOORING, BEACHING, LAUNCHING . 54
4
CONTENTS
.....................................MAINTENANCE SAFETY . 57
TOOL KIT (optional equipment) AND
...............................MAINTENANCE SCHEDULE . 59
....................................TRIM TAB ADJUSTMENT . 61
....................................MANUAL RELIEF VALVE . 62
ENGINE COVER REMOVAL AND
.............................................INSTALLATION . 62
........................................Engine Oil Level Check . 63
................................................Engine Oil Change . 64
..............................Engine Oil Recommendations . 66
.................................................Lubrication Points . 67
................................................Spark Plug Service . 68
.............................................................REFUELING . 70
...............................FUEL RECOMMENDATIONS . 71
Portable Fuel Tank and Filter Cleaning
.........................................(optional equipment) . 74
..............................................Anode Replacement . 75
..........................................Propeller Replacement . 76
..............SERVICING YOUR OUTBOARD MOTOR . 56
...........THE IMPORTANCE OF MAINTENANCE . 56
.......................EMERGENCY STARTER ROPE . 58
.....Fuel Pump Filter Inspection and Replacement . 72
....................................................................STORAGE . 77
...................................STORAGE PREPARATION . 77
..........................................Cleaning and Flushing . 77
........................................................................Fuel . 80
.............................................................Engine Oil . 81
...................................STORAGE PRECAUTIONS . 82
...............................REMOVAL FROM STORAGE . 82
........................................................TRANSPORTING . 83
WITH OUTBOARD MOTOR INSTALLED
.............................................................ON BOAT . 83
WITH OUTBOARD MOTOR REMOVED
.......................................................FROM BOAT . 83
TAKING CARE OF UNEXPECTED
..........................................................PROBLEMS . 84
BATTERY WILL NOT CHARGE AND
.ELECTRIC STARTER WILL NOT OPERATE . 89
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
CONTENTS
...............................TECHNICAL INFORMATION . 94
......................................Serial Number Locations . 94
Carburetor Modification for High Altitude
...........................................................Operation . 95
...................................................................Battery . 95
..................................................Oxygenated Fuels . 96
..............................................................Star Label . 99
......................................................Specifications . 101
.............................CONSUMER INFORMATION . 103
.........................................................................INDEX . 104
........................WIRING DIAGRAMS . Inside Back Cover
..TECHNICAL AND CONSUMER INFORMATION . 94
.................Emission Control System Information . 97
6

OUTBOARD MOTOR SAFETY

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.
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
OUTBOARD MOTOR SAFETY
Carbon Monoxide HazardRefuel With Care
Gasoline is extremely flammable, and gasoline vapor can explode. Refuel outdoors, in a well­ventilated area, with the engine stopped. Never smoke near gasoline, and keep other flames and sparks away.
Remove any portable fuel tank from the boat for refueling. Keep the portable fuel tank away from the battery or other potential spark sources.
Refuel carefully to avoid spilling fuel. Avoid overfilling the fuel tank.
After refueling, tighten the filler cap securely. If any fuel is spilled, make sure the area is dry before starting the engine.
Exhaust gas contains poisonous carbon monoxide. Avoid inhalation of exhaust gas. Never run the engine in a closed garage or confined area.
8

SAFETY LABEL LOCATIONS

OUTBOARD MOTOR SAFETY
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

CONTROLS AND FEATURES

CONTROL AND FEATURE IDENTIFICATION CODES
Model
Type
Shaft Length
Long Tiller Handle
Remote Control
Gas Assisted Tilt
Power Trim/Tilt
Tachometer (optional equipment)
Trim Meter (optional equipment)
Refer to this chart for an explanation of the Type Codes used in this manual to identify control and feature applications.
TYPE CODE (Example)
L
RT
T=Power Trim/Tilt H=Long Tiller Handle R=Remote Control
L=Long Shaft X=Extra Long Shaft
L
X
BF40A BF50A
XRTLRTLHTLRTLHTLH
10
COMPONENT AND CONTROL LOCATIONS LH and LHT Types (long tiller handle)
FUEL HOSE CONNECTOR
CONTROLS AND FEATURES
OIL FILLER CAP
LONG TILLER HANDLE
STERN BRACKET
TRANSOM ANGLE ADJUSTING ROD
GEAR OIL LEVEL CHECK PLUG
WASH PLUG (Flush plug)
GEAR OIL DRAIN PLUG
ENGINE COVER
POWER TILT SWITCH (LHT type)
ANTIVENTILATION PLATE
TRIM TAB (anode)
EXHAUST PORT
PROPELLER (optional equipment)
OIL LEVEL DIPSTICK
COOLING SYSTEM INDICATOR
ENGINE OIL DRAIN PLUG COVER
TILT LOCK LEVER
TILT LEVER (LH type)
MANUAL RELIEF VALVE (LHT Type)
WATER INTAKE
11
CONTROLS AND FEATURES
GEAR SHIFT
THROTTLE FRICTION ADJUSTER
POWER TRIM/TILT SWITCH (LHT type)
THROTTLE GRIP
OIL PRESSURE INDICATOR LIGHT
OVERHEAT INDICATOR LIGHT
IGNITION SWITCH
SWITCH CLIP
EMERGENCY STOP SWITCH
LANYARD
STEERING FRICTION ADJUSTER
IGNITION SWITCH KEY
12
LRT and XRT Types (remote control)
CONTROLS AND FEATURES
FUEL HOSE CONNECTOR
STEERING PLATE
TRANSOM ANGLE ADJUSTING ROD
GEAR OIL LEVEL CHECK PLUG
WASH PLUG (Flush plug)
ENGINE COVER
GEAR OIL DRAIN PLUG
POWER TILT SWITCH
COOLING SYSTEM INDICATOR
ENGINE OIL DRAIN PLUG COVER
TRIM TAB (anode)
EXHAUST PORT
PROPELLER (optional equipment)
OIL FILLER CAP
OIL LEVEL DIPSTICK
TILT LOCK LEVER
STERN BRACKET
MANUAL RELIEF VALVE
ANTIVENTILATION PLATE
WATER INTAKE
13
CONTROLS AND FEATURES
Remote Control box (side mount type/optional equipment)
GEARSHIFT/THROTTLE
POWER TRIM/TILT SWITCH
SPARE SWITCH CLIP
CONTROL LEVER
NEUTRAL RELEASE LEVER
OIL PRESSURE INDICATOR LIGHT
OVERHEAT INDICATOR LIGHT
14
BUZZER (inside of the box)
IGNITION SWITCH
LANYARD
THROTTLE FRICTION ADJUSTER
FAST IDLE LEVER
IGNITION SWITCH KEY
EMERGENCY STOP SWITCH
SWITCH CLIP
CONTROLS AND FEATURES
Fuel Tank (optional equipment)
FUEL TANK
PRIMING BULB
Tachometer (optional equipment)
FUEL GAUGE
VENT KNOB
FUEL CAP
Trim Meter (optional equipment)
FUEL HOSE
FUEL HOSE CONNECTOR (female)
15
CONTROLS AND FEATURES

CONTROLS

LH and LHT Types (long tiller handle)
Ignition Switch
IGNITION SWITCH
ON
START
OFF
The ignition switch controls the ignition system and starter motor.
Turning the ignition switch key to the START position operates the starter motor. The key automatically returns to the ON position when released from the START position.
The ignition switch can be used to operate the starter motor only when the gearshift lever (p. ) is in the N
18 (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
EMERGENCY STOP SWITCH
LANYARD
SWITCH CLIP
SWITCH CLIP
LANYARD
16
CONTROLS AND FEATURES
The switch clip must be inserted in the engine stop switch in order for the engine to start and run. The lanyard should be attached to the operator’s PFD (Personal Flotation Device) or worn around the wrist as shown.
When used as described, the emergency stop switch and lanyard system stops the engine if the operator falls away from the controls.
A spare swtich clip is supplied with the tool kit (optional equipment).
Throttle Grip
THROTTLE GRIP
THROTTLE INDEX MARK
The throttle grip controls engine speed.
An index mark on the tiller arm shows throttle position and is helpf ul for setting the throttle correctly when starting (p. ).38
INCREASE
17
CONTROLS AND FEATURES
Gearshif t LeverThrottle Friction Adjuster Steering Friction Adjuster
THROTTLE FRICTION ADJUSTER
FIX
RELEASE
THROTTLE GRIP
The throttle friction adjuster adjusts resistance to throttle grip rotation.
Turn the adjuster clockwise to increase friction for holding a throttle setting while cruising.
Turn the adjuster counterclockwise to decrease friction for easy throttle grip rotation.
N (neutral)
F (forward)
GEARSHIFT LEVER
R (reverse)
The gearshift lever is used to select F (forward), N (neutral), or R (reverse) gears.
The engine can be started with the gearshift lever in the N (neutral) position only.
STEERING FRICTION ADJUSTER
LOCK
FREE
The steering friction adjuster adjusts steering resistance.
Less friction allows the outboard motor to turn more easily. More friction helps to hold steady course while cruising or to prevent the outboard motor from swinging while trailering the boat.
18
CONTROLS AND FEATURES
Tilt Lever (gas assisted/LH type)
FFRREEEE
LLOOCCKK
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)
OONN
OOFFFF
IGNITION SWITCH
EMERGENCY STOP SWITCH
SWITCH CLIP
SSTTAARRTT
The ignition switch controls the ignition system and starter motor.
19
CONTROLS AND FEATURES
Turning the ignition switch key to the START position operates the starter motor. The key automatically returns to the ON position when released from the START position.
The ignition switch can be used to operate the starter motor only when the gearshift lever (p. ) is in the N
18 (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
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).
20
SPARE SWITCH CLIP
CONTROLS AND FEATURES
Fast Idle Lever (side-mount type)
N (neutral)
GEARSHIFT/THROTTLE CONTROL LEVER
The fast idle lever is used to set idle speed during warm-up.
The lever will not move unless the gearshift/throttle control lever is in the N (neutral) position. Conversely, the gearshift/throttle control lever will not move unless the fast idle lever is in the lowest position.
FAST IDLE
START
FAST IDLE LEVER
Leave the fast idle lever in the START position to provide a rich fuel mixture for starting a cold engine.
Lift the fast idle lever to warm up a cold engine after starting and to start a warm engine.
Gearshift/Throttle Control Lever (side-mount type)
GEARSHIFT/THROTTLE CONTROL LEVER
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
CONTROLS AND FEATURES
The gearshift/throttle control lever controls engine speed and selects F (forward), N (neutral), or R (reverse) gears.
Moving the control lever 30° from N (neutral) selects the gear, and further movement increases engine speed.
GEARSHIFT/THROTTLE CONTROL LEVER
N (neutral)
A friction adjuster near the base of the control lever adjusts the operating resistance of the control lever (p. ).
48
Less friction allows easier control lever movement. More friction helps to hold a steady throttle setting while cruising.
22
R (reverse)F(forward)
EENNGGIINNEE SSPPEEEEDD
EENNGGIINNEE SSPPEEEEDD
HHIIGGHH
HIGH
CONTROLS AND FEATURES
Common Controls
Power Trim/Tilt Switch [LRT and XRT types (side­mount type)]
CONTROL LEVER
Press UP to trim or tilt the motor up.
Press DN to trim or tilt the motor down.
POWER TILT SWITCH
(LHT type)
POWER TRIM/TILT SWITCH
PPrreessss UUPP ttoo ttrriimm oorr ttiilltt tthhee mmoottoorr uupp..
PPrreessss DDNN ttoo ttrriimm oorr ttiilltt tthhee mmoottoorr ddoowwnn..
The power trim/tilt switch is located on the control lever or the tiller handle. It is a rocker switch with UP and DN (down) positions for changing the angle of the outboard motor.
You can use the power 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)
POWER TILT SWITCH
The power tilt switch is located on the engine pan. It is a rocker switch with UP and DN (down) positions for changing the angle of the outboard motor.
The power tilt switch will operate without turning the ignition switch ON.
This switch is used with the engine stopped to raise the outboard motor for mooring, trailering or maintenance.
23
CONTROLS AND FEATURES
Manual Relief Valve Tilt Lock Lever Engine Cover Latches (LHT, LRT and XRT types)
TTIILLTT LLOOCCKK LLEEVVEERR
FRONT
RIGHT STERN BRACKET
POWER (To fix)
MANUAL RELIEF VALVE
MANUAL (To release)
The outboard motor can be tilted manually after opening the manual relief valve. This allows the outboard motor to be tilted when no battery is connected.
24
FFRREEEE
LLOOCCKK
The tilt lock lever is used to support the outboard motor in the fully-raised position.
When the boat is to be moored for a long time, tilt the outboard motor as far as it will go. Then move the tilt lock lever to the LOCK position, and gently lower the outboard motor until the lever contacts the stern bracket.
UNLATCH
ENGINE COVER LATCH
REAR
FFIIXX
ENGINE COVER LATCH
FFIIXX
UNLATCH
The engine cover latches fasten the engine cover to the outboard motor.
CONTROLS AND FEATURES
Transom Angle Adjusting Rod Trim Tab
STERN BRACKET
TTUURRNN UUPP
PPUUSSHH
TRANSOM ANGLE ADJUSTING ROD
The transom angle adjusting rod limits the tilt angle of the outboard motor when fully lowered.
Proper adjustment prevents the outboard motor from being trimmed too low (p. ).
50
TIGHTENING BOLT
PROPELLER
The trim tab compensates for ‘‘torque steer,’’ which is a reaction of
TO CHANGE
UNLOCKED POSITION
the outboard motor to propeller rotation.
If uncompensated, torque steer would make the outboard motor tend to turn to one side.
When the trim tab is correctly adjusted (p. ), steering effort is
TO LOCK
LOCKED POSITION
equal in either direction.
TRIM TAB
61
TRANSOM ANGLE ADJUSTING ROD
25
CONTROLS AND FEATURES

INSTRUMENTS

Trim Meter [optional equipment (LHT, LRT and XRT Types)]
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.
Tachometer Fuel Gauge
(optional equipment)(optional equipment)
FUEL GAUGE
A fuel gauge is built into the cap of
TACHOMETER
The tachometer shows engine speed in revolutions per minute.
Refer to the tachometer when using the throttle and power trim/tilt controls to achieve the best performance from the boat.
the portable fuel tank (optional equipment).
26
CONTROLS AND FEATURES

INDICATORS

Oil Pressure Indicator
LH and LHT Types
(GREEN)
LRTandXRTTypes (side-mount type)
(GREEN)
BUZZER
When the green light is lit, oil pressure is OK.
If oil pressure becomes low, the green light will go off, and the engine protection system will limit engine speed.
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
CONTROLS AND FEATURES
Overheating Indicator
LH and LHT Types
(RED)
LRTandXRTTypes (side-mount type)
BUZZER
(RED)
If the engine overheats, the red light will come on, and the engine protection system will limit engine speed.
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.
28
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