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 information on how
to do that; please read it carefully.
As you read this manual you will
find information preceded by a
symbol. That information
is intended to help you avoid damage
to your outboard motor, other
property, or the environment.
We suggest you read the warranty
policy to fully understand its
coverage and your responsibilities of
ownership.
When your outboard motor needs
scheduled maintenance, keep in mind
that your Honda marine dealer is
specially trained in servicing Honda
outboard motors. Your Honda marine
dealer is dedicated to your
satisfaction and will be pleased to
answer your questions and concerns.
2004 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 informationplease read it
carefully.
−
on the outboard motor.
−
preceded by a safety alert symboland 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
........................WIRING DIAGRAMS. Inside Back Cover
6
OUTBOARD MOTOR SAFETY
IMPORTANT SAFETY
INFORMATION
Honda BF135A/BF150A 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.
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 LOCATION
OUTBOARD MOTOR SAFETY
The label shown here contains important safety information. Please read it carefully. This label is considered a
permanent part of your outboard motor. If the label comes off or becomes hard to read, contact an authorized Honda
marine dealer for a replacement.
9
CONTROLS AND FEATURES
CONTROL AND FEATURE IDENTIFICATION CODES
Model
Type
Transom Height
Standard Rotating Propeller Shaft
Counterrotating Propeller Shaft
Power Trim/Tilt
Refer to this chart for an explanation of the Type Codes used in this manual to identify control and feature applications.
TYPE CODE (example)
X
AC
Destination
A: America
Rotating direction of propeller shaft
C: Counterrotating propeller shaft
None: Standard rotating propeller shaft
Transom Height
L: 20.0 in (508 mm), X: 25.0 in (635 mm)
The ignition switch controls the
ignition system and starter motor.
START
IGNITION
SWITCH
Turning the ignition switch key to the
START position operates the starter
motor. The key automatically returns
to the ON position when released
from the START position.
The ignition switch can be used to
start the engine only when the control
lever (p.) is in the N (neutral)
17
position, and the switch clip is in the
emergency stop switch.
Turning the ignition switch to the
OFF position stops the engine.
15
CONTROLS AND FEATURES
Switch Clip and Emergency Stop
Switch
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).
Gearshift/Throttle Control
Lever
CONTROL LEVER
NEUTRAL RELEASE
LEVER
The gearshift/throttle control lever
controls engine speed and selects F
(forward), N (neutral), or R (reverse)
gears.
16
SPARE SWITCH CLIP
Moving the control lever 30° from N
(neutral) selects the gear, and further
movement increases engine speed.
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.
A friction adjuster near the base of
the control lever(s) adjusts the
operating resistance of the control
lever(s). Refer to p..45
Less friction allows easier control
lever movement. More friction helps
to hold a steady throttle setting while
cruising.
F (FORWARD)
TTHHRROOTTTTLLEE OOPPEENNIINNGG
MAXIMUM
CONTROLS AND FEATURES
N (NEUTRAL)
30°
SHIFT
MMIINNIIMMUUMM
GEARSHIFT/THROTTLE
CONTROL LEVER
30°
SHIFT
MMIINNIIMMUUMM
R (REVERSE)
TTHHRROOTTTTLLEE OOPPEENNIINNGG
MAXIMUM
17
CONTROLS AND FEATURES
Fast Idle Lever
N (neutral)
The fast idle lever is only needed for
starting carbureted outboard models.
The BF135A and BF150A models
use programmed fuel injection so,
this lever will not be needed for
starting.
After the engine starts and if the
outside temperature is below 41°F
(5°C), the fast idle lever can be used
to accelerate engine warm up.
MAXIMUM FAST IDLE
LOWEST POSITION
FAST IDLE LEVER
The fast idle lever will not move
unless the remote control lever is in
the N (neutral) position. Conversely,
the remote control lever will not
move unless the fast idle lever is in
the lowest position.
Lower the fast idle lever to the
lowest position to decrease the f ast
idle.
Panel-Mount Type
Ignition Switch
ON
OFF
IGNITION
SWITCH KEY
The ignition switch controls the
ignition system and starter motor.
START
18
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
start the engine only when the control
lever (p.) is in the N (neutral)
21
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
EMERGENCY
STOP SWITCH
SWITCH CLIP
SWITCH CLIP
LANYARD
LANYARD
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 (optional
equipment) can be stored in the tool
bag.
SPARE SWITCH CLIP
(optional equipment)
19
CONTROLS AND FEATURES
Fast Idle Button
F(forward)
CONTROL
LEVER
By moving the control lever forward
or reverse when the fast idle button is
pushed in, the throttle opening will
be increased without engaging the
gears.
N (neutral)
R (reverse)
PPuullll uupp
Push
FAST IDLE BUTTON
NEUTRAL
RELEASE
LEVER
It is necessary to position the control
leverinN(neutral)topushinthefast
idle button.
Gearshift/Throttle Control
Lever
CONTROL LEVER
NEUTRAL RELEASE
LEVER
The gearshift/throttle control lever
controls engine speed and selects F
(forward), N (neutral), or R (reverse)
gears.
20
Moving the control lever 35° from N
(neutral) selects the gear, and further
movement increases engine speed.
CONTROLS AND FEATURES
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.
A friction adjuster near the base of
the control lever adjusts the operating
resistance of the control lever. Ref er
to p..
46
Less friction allows easier control
lever movement. More friction helps
to hold a steady throttle setting while
cruising.
F (FORWARD)
TTHHRROOTTTTLLEE OOPPEENNIINNGG
MAXIMUM
35°
SHIFT
MMIINNIIMMUUMM
N (NEUTRAL)
35°
R (REVERSE)
SHIFT
MMIINNIIMMUUMM
TTHHRROOTTTTLLEE OOPPEENNIINNGG
MAXIMUM
GEARSHIFT/THROTTLE
CONTROL LEVER
21
CONTROLS AND FEATURES
Top-Mount Type
Ignition Switch
ON
OFF
IGNITION
SWITCH
KEY
The ignition switch controls the
ignition system and starter motor.
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
start the engine only when the control
lever (p.) is in the N (neutral)
24
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
EMERGENCY
STOP
SWITCH
SWITCH CLIP
LANYARD
LANYARD
22
SWITCH CLIP
CONTROLS AND FEATURES
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 (optional
equipment) can be stored in the tool
bag.
SPARE SWITCH CLIP
(optional equipment)
Fast Idle Button
N(neutral)
F(forward)
R (reverse)
CONTROL
LEVER
Push
FAST IDLE BUTTON
By moving the control lever forward
or reverse when the fast idle button is
pushed in, the throttle opening will
be increased without engaging the
gears.
It is necessary to position the control
leverinN(neutral)topushinthefast
idle button.
Gearshift/Throttle Control
Lever
SINGLE TYPE
CCOONNTTRROOLL
LLEEVVEERR
DUAL TYPE
CCOONNTTRROOLL
LLEEVVEERRSS
The gearshift/throttle control lever
controls engine speed and selects F
(forward), N (neutral), or R (reverse)
gears.
23
CONTROLS AND FEATURES
Moving the control lever 35° from N
(neutral) selects the gear, and further
movement increases engine speed.
A friction adjuster inside the control
box adjusts the operating resistance
of the control lever(s). Refer to
p..
46
Less friction allows easier control
lever movement. More friction helps
to hold a steady throttle setting while
cruising.
TTHHRROOTTTTLLEE OOPPEENNIINNGG
MAXIMUM
F (FORWARD)
MMIINNIIMMUUMM
GEARSHIFT/THROTTLE CONTROL LEVER
N (NEUTRAL)
35°35°
SHIFT
SHIFT
MMIINNIIMMUUMM
R (REVERSE)
TTHHRROOTTTTLLEE OOPPEENNIINNGG
MAXIMUM
24
CONTROLS AND FEATURES
Common Controls
Power Trim/Tilt Switch
(side-mount type)(top-mount type)
SINGLE TYPE
POWER TRIM/TILT SWITCH
CONTROL
POWER
TRIM/TILT
SWITCH
(panel-mount type)
POWER TRIM/TILT SWITCH
LEVER
CONTROL LEVER
DUAL TYPE
POWER TRIM/TILT SWITCH
(LEFT)(RIGHT)
CONTROL
LEVER
The power trim/tilt switch is located
on the control lever. It is a rocker
switch with UP and DN (down)
positions for changing the angle of
the outboard motor.
You can use the power trim/tilt
switch anytime whether the boat is
underway, stopped, or the ignition
switch is in the OFF position. It is
necessary for the ignition switch to
be in the ON position for the trim
meter to indicate the motor angle.
Trim the outboard motor to obtain
the best performance and stability
(p.).
48
Tilt the outboard motor for shallow
water operation, beaching, launching,
or mooring.
For dual mount outboards, tilt them
up at the same time.
CCOONNTTRROOLL
LLEEVVEERRSS
25
CONTROLS AND FEATURES
Power Tilt SwitchManual Relief ValveTilt Lock Lever
POWER TILT SWITCH
The power tilt switch is located on
the engine pan. It is a rocker switch
with UP and DN (down) positions
MMAANNUUAALL RREELLIIEEFF VVAALLVVEE
PPOOWWEERR
((TToo ffiixx))
MMAANNUUAALL
((TToo rreelleeaassee))
LLOOCCKK
TTIILLTT LLOOCCKK LLEEVVEERR
The tilt lock lever is used to support
the outboard motor in the fully-raised
position.
FFRREEEE
for changing the angle of the
outboard motor.When the boat is to be moored for a
The power tilt switch will operate
without turning the ignition switch
ON.
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.
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.
This switch is used with the engine
stopped to raise the outboard motor
for mooring, trailering or
maintenance.
26
CONTROLS AND FEATURES
UUNNLLOOCCKK
ENGINE COVER LATCH
The engine cover latch fastens the
engine cover to the outboard motor.
Trim TabEngine Cover Latch
TIGHTENING
BOLT
TRIM TAB
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.), steering eff ort is
equal in either direction.
57
INSTRUMENTS
Trim Meter
(optional equipment)
TRIM METER
The trim meter has a range of4° 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
the best performance from the boat.
−
27
CONTROLS AND FEATURES
Tachometer
(optional equipment)
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.
Digital Tachometer
(optional equipment)
Digital Tachometer includes the
following functions.
Tachometer
Hour Meter
Trim Meter
Oil pressure Indicator
Overheat Indicator
ACG Indicator
PGM-FI Indicator
Refer to the Operation Guide
included with each Digital
Tachometer for operation
information.
Digital Speedometer
(optional equipment)
Digital Speedometer includes the
following functions.
Speedometer
Fuel level Meter
Volt Meter
Tripmeter
Fuel Integration Meter
Fuel Economy Meter
Fuel Flow Meter
Water Separator Indicator
Refer to the Operation Guide
included with each Digital
Speedometer for operation
information.
28
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