HONDA BF20D User Manual

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.

2006 Honda Motor Co., Ltd. All Rights Reserved

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.

Best Wishes,
Honda Motor Co., Ltd.

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 safety information please read it
carefully.

−

on the outboard motor.

−

preceded by a safety alert symbol and one of

You WILL be KILLED or SERIOUSLY
HURT if you don’t follow instructions.

You CAN be KILLED or SERIOUSLY
HURT if you don’t follow instructions.

You CAN be HURT if you don’t follow
instructions.

−

such as

−

such as

−

how to use this outboard motor correctly and safely.

IMPORTANT SAFETY INFORMAT ION.

OUTBOARD MOTOR SAFETY.

−

2

CONTENTS

CONTROL AND FEATURE

..............................................................CONTROLS . 19

H Type (tiller handle)

..........................................................Throttle Grip . 20

.....................................................Gearshift Lever . 20

............................................................Starter Grip . 21

Electric Starter Button

.........................................Steering Friction Lever . 21

R Type (remote control)

......................................................Ignition Switch . 23

.......................................................Fast Idle Lever . 24

...................................OUTBOARD MOTOR SAFETY . 7

................IMPORTANT SAFETY INFORMATION . 7

................................SAFETY LABEL LOCATIONS . 9

..................................CONTROLS AND FEATURES . 10

................................IDENTIFICATION CODES . 10

....COMPONENT AND CONTROL LOCATIONS . 14

....................Engine Stop Switch and Switch Clip . 19

....................Choke Knob (H type manual choke) . 19

.....................................Throttle Friction Adjuster . 20

................(types equipped with electric starter) . 21

....................................Power Tilt Switch (T type) . 22

.............Emergency Stop Switch and Switch Clip . 23

..........................Gearshift/Throttle Control Lever . 25

....................................Power Tilt Switch (T type) . 26

...............................Manual Relief Valve (T type) . 26

.......................................Tilt Lock Lever (T type) . 27

Common Controls

..............................................Engine Cover Latch . 27

.............................Transom Angle Adjusting Rod . 27

..................................Tilt Lever (manual tilt type) . 28

.......................................................INSTRUMENTS . 29

............................................................Fuel Gauge . 29

..........Tachometer [optional equipment (R type)] . 29

...........................................................INDICATORS . 30

...............Oil Pressure Indicator (R type) (H type) . 30

.................................................Overheat Indicator . 30

................................................................R type . 30

................................................................H type . 31

.....................................Cooling System Indicator . 31

................................................OTHER FEATURES . 32

.....................................................Overrev Limiter . 32

Automatic Choke

................(types equipped with electric starter) . 32

...................................................................Anodes . 32

................................................Portable Fuel Tank . 33

....................................Fuel Filler Cap Vent Knob . 33

.................................................Fuel Priming Bulb . 33

3

CONTENTS

..........................................................INSTALLATION . 34

.....................................POWER REQUIREMENTS . 34

..................................INSTALLATION POSITION . 34

.......................................................ATTACHMENT . 35

...................................BATTERY CONNECTIONS . 37

................................................BEFORE OPERATION . 40

IS YOUR OUTBOARD MOTOR

？

................................................READY TO GO . 40

................................................................OPERATION . 42

.......................................BREAK-IN PROCEDURE . 42

...................BOAT TRANSOM REQUIREMENTS . 34

.....................TRANSOM ANGLE ADJUSTMENT . 36

？

.....ARE YOU READY TO GET UNDER WAY . 40

....................SAFE OPERATING PRECAUTIONS . 42

.....................TRANSOM ANGLE ADJUSTMENT . 43

.......................................PORTABLE FUEL TANK . 45

................................FUEL HOSE CONNECTIONS . 45

.......................................................FUEL PRIMING . 46

......................................STARTING THE ENGINE . 46

............................................H Type (tiller handle) . 46

........................................R Type (remote control) . 49

.....................................EMERGENCY STARTING . 51

.......................................STOPPING THE ENGINE . 54

................................Emergency Engine Stopping . 54

.......................................Normal Engine Stopping . 54

GEARSHIFT AND

..............................THROTTLE OPERATION . 56

............................................H Type (tiller handle) . 56

........................................R Type (remote control) . 57

...............................................................STEERING . 58

............................................H Type (tiller handle) . 58

........................................R Type (remote control) . 58

................................................................CRUISING . 59

........................SHALLOW WATER OPERATION . 61

...............MOORING, BEACHING, LAUNCHING . 63

4

CONTENTS

..............SERVICING YOUR OUTBOARD MOTOR . 65

.....................................MAINTENANCE SAFETY . 66

TOOL KIT AND EMERGENCY STARTER

.....................................................................ROPE . 67

...............................MAINTENANCE SCHEDULE . 68

......................MANUAL RELIEF VALVE (T type) . 70

ENGINE COVER REMOVAL AND

..................................................INSTALLATION . 70

............................................Engine Oil Level Check . 71

....................................................Engine Oil Change . 72

.......................................................Oil Filter Change . 73

..................................Engine Oil Recommendations . 74

.......................................Gear Case Oil Level Check . 74

...............................................Gear Case Oil Change . 75

.....................................................Lubrication Points . 77

....................................................Spark Plug Service . 78

.............................................................REFUELING . 79

...............................FUEL RECOMMENDATIONS . 80

...................Fuel Filter Inspection and Replacement . 81

.................................Recoil Starter Rope Inspection . 84

..................................................Anode Replacement . 84

..............Choke Knob Friction (manual choke type) . 85

..............................................Propeller Replacement . 85

...........THE IMPORTANCE OF MAINTENANCE . 65

...........Portable Fuel Tank and Tank Filter Cleaning . 83

....................................................................STORAGE . 87

...................................STORAGE PREPARATION . 87

..........................................Cleaning and Flushing . 87

........................................................................Fuel . 88

.............................................................Engine Oil . 91

...................................STORAGE PRECAUTIONS . 91

...............................REMOVAL FROM STORAGE . 92

........................................................TRANSPORTING . 93

WITH OUTBOARD MOTOR INSTALLED

.............................................................ON BOAT . 93

WITH OUTBOARD MOTOR REMOVED

.......................................................FROM BOAT . 93

TAKING CARE OF UNEXPECTED PROBLEMS

..................................ENGINE WILL NOT START . 95

HARD STARTING OR STALLS AFTER

...........................................................STARTING . 97

...........................................ENGINE OVERHEATS . 98

BATTERY WILL NOT CHARGE AND

.................................................Fuse Replacement . 99

OIL PRESSURE INDICATOR GOES OFF AND

..........................ENGINE SPEED IS LIMITED . 100

OVERHEAT AND ENGINE SPEED IS LIMITED

........................................SUBMERGED MOTOR . 103

................ 94

.....ELECTRIC STARTER WILL NOT OPERATE . 94

.ELECTRIC STARTER WILL NOT OPERATE . 99

.......... 101

5

CONTENTS

TECHNICAL AND CONSUMER

.................................................INFORMATION . 105

.............................TECHNICAL INFORMATION . 105

......................................Serial Number locations . 105

Carburetor Modification for High Altitude

.........................................................Operation . 106

............................................................Star Label . 109

......................................................Specifications . 111

.............................CONSUMER INFORMATION . 119

.............................................Honda Publications . 119

............................Customer Service Information . 119

.........................................................................INDEX . 130

.........................WIRING DIAGRAMS . Inside back cover

...............Emission Control System Information . 107

..........................Distributor’s Limited Warranty . 122

...................Emission Control System Warranty . 126

This Owner’s Manual uses the following Type names
when describing an operation unique to a particular Type:

Tiller handle type:
Remote control type:
Power tilt type:

Check the type of your outboard motor and read this
Owner’s Manual thoroughly before operation.
Text with no Type indication refers to information/
procedures common to all Types.

H type
R type
T type

6

OUTBOARD MOTOR SAFETY

IMPORTANT SAFETY INFORMATION

The Honda BF8D/BFP8D/BF9.9D/
BFP9.9D/BF15D/BFP15D/BF20D
and BFP20D 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 in this chapter, 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 dealer for a replacement.

9

CONTROLS AND FEATURES

CONTROL AND FEATURE IDENTIFICATION CODES

Model

Type

Shaft Length
Tiller Handle
Remote Control
Electric Starter
Power Tilt
Power Thrust Propeller
Battery Charging DC
Receptacle
Tachometer

SHA

S

H

BF8D

LHA

L

H

LHSA

L
H

S

LHA

L
H

P

BFP8D

XHSA

X
H

S

P

LHTA

L
H

S
T
P

LRTA

L

＊

S
T
P

＊

Refer to this chart for an explanation of the Type Codes used in this manual to identify control and feature applications.

BF8D/BFP8D are provided with the
following types according to the shaft
length, control system, tilt system, and start

Tilt system

Power Tilt (with hydraulic assist

T:

function)

(Example)

LHSA

system.

Shaft Length
S: Short Shaft
L: Long Shaft
X: Extra Long Shaft
Control System
H: Tiller Handle Control
R: Remote Control

Optional Equipment

:

＊

Standard Equipment

:

Destination
A=United States
S=Electric Starter
T=Power Tilt
None=Manual Tilt
R=Remote Control
H=Tiller Handle
S=Short Shaft
L=Long Shaft
X=Extra Long Shaft

10

CONTROLS AND FEATURES

Model

Type

Shaft Length
Tiller Handle
Remote Control
Electric Starter
Power Tilt
Power Thrust Propeller
Battery Charging DC
Receptacle
Tachometer

SHA

S

H

LHA

L

H

SHSA

S
H

S

LHSA

L
H

S

LRA

L

＊

S

＊

LHA

L
H

P

XHA

X
H

P

XHSA

BFP9.9DBF9.9D

LHTA

LRA

X

L

H

＊

S

S

P

P

＊

XHTA

LRTA

XRTA

L

X

L

H

H

S

S

T

T

P

P

＊＊＊

S
T
P

X

S

T

P

＊

Refer to this chart for an explanation of the Type Codes used in this manual to identify control and feature applications.

BF9.9D/BFP9.9D are provided with the
following types according to the shaft
length, control system, tilt system, and start

Tilt system

Power Tilt (with hydraulic assist

T:

function)

(Example)

LHSA

system.

Shaft Length
S: Short Shaft
L: Long Shaft
X: Extra Long Shaft
Control System
H: Tiller Handle Control
R: Remote Control

Optional Equipment

:

＊

Standard Equipment

:

Destination
A=United States
S=Electric Starter
T=Power Tilt
None=Manual Tilt
R=Remote Control
H=Tiller Handle
S=Short Shaft
L=Long Shaft
X=Extra Long Shaft

11

CONTROLS AND FEATURES

Model

Type

Shaft Length
Tiller Handle
Remote Control
Electric Starter
Power Tilt
Power Thrust Propeller
Battery Charging DC
Receptacle
Tachometer

SHA

S

H

LHA

L

H

BF15D BFP15D

SHSA

LHSA

SHTA

LHTA

LRTA

S

L

L

L

H

H

H

S

S

S

T

L

H

＊

S

S

T

T

＊

XHTA

X
H

S

T

P

LRTA

L

＊＊＊

S

T

P

XRTA

X

S
T
P

＊

Refer to this chart for an explanation of the Type Codes used in this manual to identify control and feature applications.

BF15D/BFP15D are provided with the
following types according to the shaft
length, control system, tilt system, and start

Tilt system

Power Tilt (with hydraulic assist

T:

function)

(Example)

LHSA

system.

Shaft Length
S: Short Shaft
L: Long Shaft
X: Extra Long Shaft
Control System
H: Tiller Handle Control
R: Remote Control

:

Optional Equipment

＊

:

Standard Equipment

Destination
A=United States
S=Electric Starter
T=Power Tilt
None=Manual Tilt
R=Remote Control
H=Tiller Handle
S=Short Shaft
L=Long Shaft
X=Extra Long Shaft

12

CONTROLS AND FEATURES

LRTA

L

S
T

BFP20D

LRTA

L

S
T
P

＊

Model BF20D

Type

Shaft Length
Tiller Handle
Remote Control
Electric Starter

Power Thrust Propeller
Battery Charging DC
Receptacle
Tachometer

SHA

S

H

LHA

L

H

SHTA

S
H

S
T

LHTA

SRTA

L

S

H

＊＊＊＊＊

S

S

TPower Tilt

T

Refer to this chart for an explanation of the Type Codes used in this manual to identify control and feature applications.

BF20D/BFP20D are provided with the
following types according to the shaft
length, control system, tilt system, and start

Tilt system

Power Tilt (with hydraulic assist

T:

function)

(Example)

LHSA

system.

Shaft Length
S: Short Shaft
L: Long Shaft
Control System
H: Tiller Handle Control
R: Remote Control

Optional Equipment

:

＊

Standard Equipment

:

Destination
A=United States
S=Electric Starter
T=Power Tilt
None=Manual Tilt
R=Remote Control
H=Tiller Handle
S=Short Shaft
L=Long Shaft

13

CONTROLS AND FEATURES

COMPONENT AND CONTROL LOCATIONS
H Type (tiller handle)

OIL FILLER CAP

OIL LEVEL
DIPSTICK

COOLING SYSTEM
INDICATOR

ENGINE OIL
DRAIN SCREW

ANODES
(each side)

STARTER GRIP

GEARSHIFT LEVER

TILT LEVER
(manual tilt type)

MANUAL
RELIEF VALUE
(T type)

TILLER HANDLE

STERN BRACKET

CLAMP SCREW

TRANSOM ANGLE
ADJUSTING ROD

GEAR OIL
LEVEL SCREW

COOLING WATER
INTAKE PORT
(each side)

GEAR OIL DRAIN/FILL SCREW

ENGINE COVER

FLUSH PORT HOLE
(inside engine cover)

ANTIVENTILATION
PLATE

EXHAUST PORT

PROPELLER

14

CHOKE KNOB
(manual choke type)

CONTROLS AND FEATURES

OIL PRESSURE
INDICATOR

SWITCH CLIP

THROTTLE
FRICTION
ADJUSTER

THROTTLE
GRIP

FUEL HOSE
CONNECTOR

STEERING
FRICTION
LEVER

POWER TILT
SWITCH
(T type)

ELECTRIC STARTER BUTTON
(electric start type)

ENGINE
STOP
SWITCH

LANYARD

15

CONTROLS AND FEATURES

R Type (remote control)

OIL FILLER CAP

OIL LEVEL
DIPSTICK

COOLING SYSTEM
INDICATOR

ENGINE OIL
DRAIN SCREW

STARTER GRIP

TILT LEVER
(manual tilt type)

MANUAL
RELIEF VALVE
(T type)

ENGINE COVER

STERN BRACKET

CLAMP SCREW
(applicable types)

TRANSOM ANGLE
ADJUSTING ROD

GEAR OIL
LEVEL SCREW

COOLING WATER
INTAKE PORT
(each side)

GEAR OIL DRAIN/FILL SCREW

FLUSH PORT HOLE (inside engine cover)

ANODES
(each side)

ANTIVENTILATION
PLATE

EXHAUST PORT

PROPELLER

16

Remote Control box (optional equipment)
(side-mount type)

GEARSHIFT/THROTTLE CONTROL LEVER

CONTROLS AND FEATURES

NEUTRAL RELEASE LEVER

POWER TILT SWITCH
(T type)

SPARE SWITCH CLIP

REMOTE CONTROL
FRICTION ADJUSTER

OIL PRESSURE INDICATOR

OVERHEAT INDICATOR

FAST IDLE LEVER

BUZZER (inside box)

IGNITION SWITCH

EMERGENCY STOP SWITCH

LANYARD

SWITCH CLIP

17

CONTROLS AND FEATURES

Tachometer Portable Fuel Tank

[optional equipment (R type)]

FUEL GAUGE VENT KNOB

FUEL FILLER CAP

TACHOMETER

PRIMING BULB

FUEL TANK

FUEL HOSE

FUEL HOSE CONNECTOR
(FEMALE)

18

CONTROLS AND FEATURES

CONTROLS

H Type (tiller handle)

Engine Stop Switch and Switch Clip

ENGINE STOP
SWITCH

LANYARD

SWITCH CLIP

The engine stop switch has controls
for normal engine stopping and
emergency engine stopping.

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 engine
stop switch and lanyard system stops
the engine if the operator falls away
from the controls.

A spare switch clip is supplied in the
tool bag with the motor.

Choke Knob (manual choke type)

CHOKE KNOB

OOFFFF

OONN

The choke knob opens and closes the
choke valve in the carburetor.

The ON position enriches the fuel
mixture for starting a cold engine.

The OFF position provides the
correct fuel mixture for operation
after starting, and for restarting a
warm engine.

LANYARD

19

CONTROLS AND FEATURES

Throttle Grip Gearshif t LeverThrottle Friction Adjuster

THROTTLE INDEX
MARK

THROTTLE GRIP

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. ).

47

FIX

THROTTLE FRICTION ADJUSTER

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.

R (reverse)

GEARSHIFT LEVER

N (neutral)

F(forward)

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.

If the gearshift lever is in the F
(forward) or R (reverse) position, the
recoil starter will not operate, and the
electric starter button (applicable
models) will not operate the starter
motor.

20

CONTROLS AND FEATURES

Starter Grip

STARTER GRIP

Pulling the starter grip operates the
recoil starter to crank the engine for
starting.

The engine will not start unless the
gearshift lever is in the N (neutral)
position (p. ), and the clip is in the
engine stop switch.

47 47

equipped with electric starter)

SWITCH
CLIP

ELECTRIC STARTER
BUTTON

Press the starter button to operate the
electric starter for starting the engine.

The electric starter button can be
used to start the engine only when the
gearshift lever is in the N (neutral)
position (p. ), and the clip is in the
engine stop switch.

Steering Friction LeverElectric Starter Button (types

LLOOCCKK

STEERING FRICTION LEVER

The steering friction lever 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.

FFRREEEE

21

CONTROLS AND FEATURES

Power Tilt Switch (T type)

Press UP
to tilt the
motor up.

Press DN to tilt
the motor down.

POWER TILT SWITCH

The rocker type power tilt switch has
UP and DN (down) positions for
changing the angle of the outboard
motor.

Power tilt is a convenience for
tilting the motor, shallow water
operation, and trailering only. It is
not designed to be used as a trim
function to adjust the trim angle of
the boat.

During shallow water operation,
beaching, launching, or mooring,
proceed at low speed with a small
throttle opening and tilt the motor up
as necessary (p. ).62

22

CONTROLS AND FEATURES

R Type (remote control)

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 the starter motor.

Turning the ignition switch key to the
START position operates the starter
motor. The key automatically returns
to the ON position when released
from the START position.

The ignition switch can be used to
start the engine only when the
gearshift/throttle control lever is in
the N (neutral) position (p. ), and

49
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 (side-mount type)

EMERGENCY
STOP SWITCH

LANYARD

SWITCH CLIP

LANYARD

SWITCH CLIP

23

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 is stored in a slot
in the control housing.

SPARE SWITCH CLIP

Fast Idle Lever

(side-mount type)

MAXIMUM FAST IDLE

The fast idle lever is used to set idle
speed during warm-up.

The lever will not move unless the
gearshift/throttle control lever is in
the N (neutral) position. The fast idle
lever must be in its lowest position
for you to move the gearshift/throttle
control lever out of neutral.

LOWEST POSITION

FAST IDLE LEVER

Leave the fast idle lever in the lowest
position to provide a rich fuel
mixture for starting a cold engine.

Lift the fast idle lever to accelerate
the warm up of a cold engine after
starting and to start a warm engine.

24

CONTROLS AND FEATURES

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.

GEARSHIFT/THROTTLE
CONTROL LEVER

N (neutral)

30°

EENNGGIINNEE
SSPPEEEEDD

HIGH

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.

30°

R (reverse)F(forward)

EENNGGIINNEE
SSPPEEEEDD

HIGH

A friction adjuster near the base of
the control lever adjusts the operating
resistance of the control lever (p. ).

57

Less friction allows easier control
lever movement. More friction helps
to hold a steady throttle setting while
cruising.

25

CONTROLS AND FEATURES

Power Tilt Switch (T type) Manual Relief Valve (T type)
(side-mount type)

CONTROL LEVER

Press UP to tilt
the motor up.

Power tilt is a convenience for
tilting the motor, shallow water
operation, and trailering only. It is
not designed to be used as a trim
function to adjust the trim angle of
the boat.

RIGHT STERN BRACKET

MANUAL
(Valve closed
to fix)

During shallow water operation,
beaching, launching, or mooring,

Press DN to tilt
the motor down.

POWER TILT SWITCH

The rocker type power tilt switch is
located on the control lever and has
UP and DN (down) positions for
changing the angle of the outboard
motor.

proceed at low speed with a small
throttle opening and tilt the motor up
as necessary (p. ).

62

POWER
(Valve open
to release)

※

※

MANUAL RELIEF VALVE

:

Do not turn this screw. If this
screw is turned hydraulic oil
will bleed out of the power tilt
system. Should this happen it
will be necessary to consult your
authorized Honda marine dealer
and have the system refilled.

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.

26

CONTROLS AND FEATURES

Tilt Lock Lever (T type)

FFRREEEE

TTIILLTT LLOOCCKK
LLEEVVEERR

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 up
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.

Common Controls

Engine Cover Latch

EENNGGIINNEE CCOOVVEERR LLAATTCCHH

The engine cover latch fastens the
engine cover to the outboard motor.

Transom Angle Adjusting Rod

The transom angle adjusting rod
limits the tilt angle of the outboard
motor when fully lowered.

(manual tilt SH type/LH type)

ADJUSTING ROD

27

CONTROLS AND FEATURES

(manual tilt/XH type and R type) (T type)

ADJUSTING ROD

adjustment positions. Three are
controlled by the adjusting rod and
the fourth is controlled by the stern
bracket. In order to use the fourth
position, remove the adjusting rod
and store it in the storage location,
then lower the motor down to the
stern bracket stop position.

ADJUSTING ROD
(storage location)

Tilt Lever (manual tilt type)

TILT LEVER

TTIILLTT

RRUUNN
((LLOOCCKK))

The tilt lever enables the outboard
motor to be raised for shallow water
operation, beaching, launching, or
mooring.There are four transom angle

To tilt, move the lever to the TILT
position, then raise the outboard
motor until the tilt mechanism
engages at 22°, 37°, 63° or 64°
(p. ).61

28

CONTROLS AND FEATURES

BF8D/BFP8D/BF9.9D/BFP9.9D
63° : Tiller handle S and L type.
64° : Tiller handle X type and

Remote control type.

BF15D/BFP15D/BF20D/BFP20D
63° : Tiller handle S type.
64° : Tiller handle L and X type and

Remote control type.

INSTRUMENTS Tachometer

[]

optional equipment (R Type)

Fuel Gauge

FUEL GAUGE

A fuel gauge is built into the cap of
the portable fuel tank.

The tachometer shows engine speed
in revolutions per minute.

A tachometer will help to select the
correct propeller.

TACHOMETER

29

CONTROLS AND FEATURES

INDICATORS

Oil Pressure Indicator
[R type (side-mount type)]

(GREEN)

(H type)

OIL PRESSURE INDICATOR

When the green light is lit, oil
pressure is OK.

If oil pressure becomes low, the
green light will go off, and the
engine protection system will limit
engine speed. Refer to

TAKING

CARE OF UNEXPECTED

100

PROBLEMS

Remote controls are also equipped
with a buzzer that sounds
continuously when the green light
goes off.
The buzzer sound stops below an
engine speed of 1,400 rpm.

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

,p. .

Overheat Indicator
[R type (side-mount type)]

(RED)

(R type)

When the overheat protection system
is activated, the red overheat light
will come on, a buzzer will sound
continuously and the engine speed
will be reduced to 1,800 rpm. If the
condition persists for another 20
seconds, the engine will shut off.
Refer to

UNEXPECTED PROBLEMS

TAKING CARE OF

,p. .

101

30

CONTROLS AND FEATURES

(H type)

is activated, the engine speed will be
reduced to 1,800 rpm. If the
condition persists for another 20
seconds, the engine will shut off.
Refer to

UNEXPECTED PROBLEMS

Engine overheating may be the result
of clogged water intakes.

TAKING CARE OF

,p. .

101

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. Refer to

TAKING CARE OF UNEXPECTED
PROBLEMS

,onp. .

101

The cooling system indicator port can
also become plugged.When the overheat protection system

31

CONTROLS AND FEATURES

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 tilt angle of the outboard
motor.

Check to see if the correct propeller
is installed.

AnodesAutomatic Choke (types

equipped with electric starter)

The engine is equipped with an
automatic choke so that the choke
system operation is not needed when
starting the engine.

ANODE
(T type)

ANODES (each side)

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.

32

CONTROLS AND FEATURES

Fuel Priming BulbFuel Filler Cap Vent KnobPortable Fuel Tank

The portable fuel tank has a capacity
of US gal ( ) and has a fuel

3.2 12

gauge built into the cap.

VENT KNOB

CLOSE

OOPPEENN

FUEL FILLER CAP

The cap is provided with a vent knob
to seal the portable fuel tank for
carrying it to and from the boat.
Open the vent knob 2 or 3 turns
before starting the engine.

OUTLET END
(MOTOR)

PRIMING BULB

INLET END
(TANK)

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

Before starting the engine, squeeze
the priming bulb until it feels firm.
This will ensure that fuel is supplied
to the engine.

33

INSTALLATION

Correct and secure installation is
essential for safe boating and good
performance. Follow the installation
instructions provided in this manual.

POWER REQUIREMENTS

Before installation, check to be sure
that the outboard motor does not
exceed the recommended maximum
horsepower for the boat on which it
is to be installed. Refer to the boat’s
certification plate for recommended
maximum horsepower. If the
certification plate information is not
available, contact the boat dealer or
manufacturer.

For most applications, the outboard
motor should have a horsepower
rating which provides 80% of the
maximum recommended horsepower
for the boat.

BOAT TRANSOM REQUIREMENTS

Honda BF8D/BFP8D/BF9.9D/
BFP9.9D/BF15D/BFP15D/BF20D
and BFP20D outboard motors can be
installed on a boat transom having a
thickness range of 1.3 2.2 inches

−

(35 57 mm).

−

INSTALLATION POSITION

CENTER LINE

Install the outboard motor on the
center of the boat transom.

The antiventilation plate of the
outboard motor should be 0 2 in

−

(0 50 mm) below the bottom of
the boat. When the outboard motor is
mounted on a sailboat, the

−

antiventilation plate should be 4 in
(100 mm) or more below the surface
of the water. For unusual situations,
see your Honda marine dealer for
advice.

The correct dimensions differ
according to the type of boat and the
configuration of the bottom of the
boat. Follow the manufacturer’s
recommended installation height.

IIDDLLEE
PPOORRTT

BBOOAATT
TTRRAANNSSOOMM
HHEEIIGGHHTT

02in

−

(0 50 mm)

−

AANNTTIIVVEENNTTIILLAATTIIOONN PPLLAATTEE

Type:

S:
L:

X:

WATER SURFACE

Motor Transom Height

17.0 in (433 mm)

22.2 in (563 mm)

27.7 in (703 mm)

MMOOTTOORR
TTRRAANNSSOOMM
HHEEIIGGHHTT

4in
(100 mm)

34

INSTALLATION

When the outboard motor is installed
extremely low, the idle port may be
immersed and the engine may
become hard to start or may run
poorly. Check that the idle port is
high enough from the water level
when the engine is stopped with the
boat fully loaded.

If the outboard motor is installed too
low, the boat will squat and be hard
to plane, and the motor will spray
water that may enter the boat. It will
tend to porpoise, and high-speed
stability will be reduced.

If the outboard motor is installed too
high, that will cause propeller
ventilation.

Optimum installation height varies
with boat type and bottom shape.
Contact the boat manufacturer for
any special recommendations that are
unique to a specific model of boat.

If the transom needs to be modified
to accommodate the outboard motor,

contact the boat manufacturer and
follow their recommendations for
corrective action.

IDLE PORT

5.9 in (150 mm)
or more

WATER LEVEL

FULLY TRIM/TILT
DOWN

Adverse effect to the engine can
occur if the installation position of
the outboard motor is too low. Trim/
tilt down the outboard motor with the
boat fully loaded and stop the engine.
Check that the idle port is 5.9 in (150
mm) or more above the water level.

ATTACHMENT
(types with clamp screws)

ROPE

BOLT

WASHER

BOLT

MOUNTING HOLE

CLAMP SCREW

LOCK NUT

WASHER

LOCK NUT

TRANSOM
BOARD

35

INSTALLATION

CARRYING
HANDLE
(Storage position)

Attach the stern bracket to the
transom and tighten the clamp screws.
Push the carrying handle into the
storage position.

Attach a rope from the boat to the
hole in the stern bracket. This will
help to prevent accidental loss of the
outboard motor.

You may further secure the outboard
motor by bolting the stern bracket to
the boat transom. Use the optional
mounting bolt and nut kit or other
good quality stainless steel bolts, nuts,
and washers. Apply silicone sealant
to the bolt holes.

(types without clamp screws)

WASHER LOCK NUT

BOLTS

WASHER

TRANSOM
BOARD

Attach the stern bracket to the boat
transom with good quality stainless
steel bolts, nuts, and washers. Apply
silicone sealant to the bolts holes.

WASHER

LOCK NUT

MOUNTING
HOLE

TRANSOM ANGLE ADJUSTMENT

Use the transom angle adjustment rod
(p. ) to adjust the angle of the

43
outboard motor so the propeller is
perpendicular to the surface of the
water.

36

INSTALLATION

BATTERY CONNECTIONS

−

TO ACCESSORIES

BATTERY

Honda BF8D/BFP8D/BF9.9D/
BFP9.9D/BF15D/BFP15D/BF20D
and BFP20D outboard motors
produce a 12-volt, 6 or 12-ampere
battery-charging current and are
equipped for connection to a 12-volt
battery. The battery-charging circuit
is protected by a 20-ampere fuse
located in the engine compartment.

The outboard motor’s 12-volt output
is designed to charge a ‘‘starting or
cranking’’ battery only. It is not
intended to charge a ‘‘deep-cycle’’
type battery. Lights and electrical
accessories for the boat should be
connected to the battery.

The battery should be kept in a
corrosion-resistant battery box that is
securely mounted in a location away
from the fuel tank and protected
from water and direct sunlight.

Types With Electric Starter

These types are equipped with
battery cables. The positive (+) cable
has a red band at the battery
connector. The negative (-) cable has
a black band at the battery connector.

For electric starter operation, use a
12-volt battery with an ampere-hour
rating of at least 35 Ah (CCA 270).

Types With Manual Start

These types are equipped with a 12­volt DC battery-charging receptacle
which can be wired to a 12-volt
battery to power lights and electrical
accessories for the boat.

37

INSTALLATION

Plug and Receptacle
(types without electric starter)

BATTERY

To prepare the outboard motor for
connection to a battery, pull the cover
off the DC receptacle, connect the
battery charging wires to the plug.
Attach the plug to the receptacle on
the motor.

The receptacle is provided with a
cover, which should be attached
when the plug is removed, in order to
keep the receptacle clean and dry.

TO ACCESSORIES

−

TO BATTERY

−

DC RECEPTACLE

COVER

Battery

For complete information, refer to
the battery manufacturer’s
instructions.

Minimum Requirements

12V-35Ah (CCA 270)

38

Battery Terminals

( ) TERMINAL

−

( ) TERMINAL

＋

RED

INSTALLATION

Be caref ul to avoid connecting the
battery in reverse polarity, as this
will damage the battery-charging
system in the outboard motor.
Do not disconnect the battery
cables while the engine is running.
Disconnecting the cables while the
engine is running, will damage the
outboard motor’s electrical system.

BLACK or GREEN

Connect the positive (+) battery cable
to the positive (+) battery terminal,
then connect the negative (-) battery
cable to the negative (-) battery
terminal.

The negative (-) battery cable should
always be removed from the battery
before connecting or disconnecting
the positive (+) battery cable, so tools
cannot cause a short circuit if they
touch a grounded part while being
used on the positive (+) battery
terminal fitting.

WARNING:

Battery posts, terminals,
and related accessories contain lead
and lead compounds.

Wash your

hands after handling.

39

BEFORE OPERATION

ARE YOU READY TO GET UNDER WAY?

Your safety is your responsibility. A
little time spent in preparation will
significantly reduce your risk of
injury.

Knowledge

Read and understand this manual.
Know what the controls do and how
to operate them.

Familiarize yourself with the
outboard motor and its operation
before you get under way. Know
what to do in case of emergencies.

Familiarize yourself with all laws
and regulations relating to boating
and the use of outboard motors.

Safety

Always wear a PFD (Personal
Flotation Device) while on the boat.

Attach the emergency stop switch
lanyard securely to your PFD or to
your wrist.

IS YOUR OUTBOARD MOTOR READY TO GO?

For your safety, and to maximize the
service life of your equipment, it is
very important to take a few
moments before you operate the
outboard motor to check its condition.
Be sure to take care of any problem
you find, or have your authorized
Honda Marine dealer correct it,
before you operate the outboard
motor.

Improperly maintaining
this outboard motor, or
failing to correct a problem
before operation, can cause
a malfunction in which you
could be seriously hurt or
killed.

Always perform a pre­operation inspection before
each operation, and correct
any problem.

Before beginning your pre-operation
checks, be sure the switch clip is
removed or the ignition switch is in
the OFF position.

40

Safety Inspection Maintenance Inspection

BEFORE OPERATION

Look around the outboard motor
for signs of oil or gasoline leaks.

If you are using the portable fuel
tank, make sure it is in good
condition and properly secured in
the boat (p. ).

Check that the fuel hose is
undamaged and properly
connected (p. ).

Wipe up any spills before starting
the engine.

Check the stern bracket to be sure
the outboard motor is securely
installed.

Check that all controls are
operating properly.

Replace any damaged parts.

Check that all fasteners are in
place and securely tightened.

45

45

Check the engine oil level (p. ).
Running the engine with a low oil
level can cause engine damage.

Check to be sure the propeller is
undamaged, and the castle nut is
secured with the cotter pin
(p. ).

86
Check that the anodes are securely
attached to the gear case (p. )
and are not excessively worn. The
anodes help to protect the outboard
motor from corrosion.

Make sure the tool kit and
emergency starter rope are
onboard (p. ). Replace any
missing items.

Check the fuel level in the fuel
tank (p. ).

Check that the battery fluid is
between the upper and lower levels,
and the battery leads are connected
securely (electric starter type).

67

79

71

84

41

OPERATION

SAFE OPERATING PRECAUTIONS

To safely realize the full potential of
this outboard motor, you need a
complete understanding of its
operation and a certain amount of
practice with its controls.

Before operating the outboard motor
for the first time, please review the

IMPORTANT SAFETY
INFORMATION

chapter titled

For your safety, avoid starting or
operating the engine in an enclosed
area. Your engine’s exhaust contains
poisonous carbon monoxide gas
which can collect rapidly in an
enclosed area and cause illness or
death.

on page and the

BEFORE OPERATION.

7

BREAK-IN PROCEDURE

Break-in period: 10 hours

Proper break-in operation allows the
moving parts to wear in smoothly for
best performance and long service
life.

First 15 minutes:

Run the engine at trolling speed. Use
the minimum throttle opening
necessary to operate the boat at a safe
trolling speed.

Next 45 minutes:

Run the engine up to a maximum of
2,000 to 3,000 rpm, which is about
10% to 30% of maximum throttle
opening.

Next 60 minutes:

Run the engine up to a maximum of
4,000 to 5,000 rpm, which is about
50% to 80% of maximum throttle
opening.

Short full-throttle bursts are OK, but
do not operate the engine
continuously at full throttle.

For boats that plane easily, bring the
boat up on plane, and then reduce the
throttle opening to the recommended
rpm range.

Next 8 hours:

Do not run the engine at full throttle
for more than 5 minutes at a time.

42

OPERATION

TRANSOM ANGLE ADJUSTMENT

(manual tilt SH type/LH type)

ADJUSTING ROD

LOCKED POSITION

(manual tilt XH type/R type)

ADJUSTING ROD

PINCH

TURN UP

PUSH

(T type)

TTUURRNN UUPP

ADJUSTING ROD

(XH type/R type/T type)

UNLOCKED
POSITION

LOCKED POSITION

ADJUSTING ROD

PPUUSSHH

TO CHANGE

TO LOCK

The transom angle adjusting rod
limits the tilt angle of the outboard
motor when fully lowered.

Proper adjustment prevents the
outboard motor from being tilted too
low (p. ).

59

To adjust, first tilt the outboard
motor so it is not resting on the rod.

(manual tilt SH type/LH type)

Pinch the end of the rod.

Remove the rod and reinsert it in the
desired position.

Push the rod in and hook the end of
the rod. Then release the rod.

(XH type/R type/T type)

Push the rod in and turn the end of
the rod up, so the latch will fall into
line with the rod.
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.

43

OPERATION

Do not allow water to enter the idle
exhaust port or the engine can be
damaged.

IDLE EXHAUST PORT

44

OPERATION

PORTABLE FUEL TANK FUEL HOSE CONNECTIONS

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

FUEL HOSE CONNECTOR

Before use, open the fuel tank vent
by turning the vent knob at least 2 or
3 turns counterclockwise.

Gasoline is highly
flammable and explosive.

(FUEL TANK SIDE)

FUEL HOSE CONNECTOR

You can be burned or

Place the portable fuel tank in a well­ventilated location, away from direct

seriously injured when
handling fuel.

sunlight, to reduce the possibility of a
gasoline vapor explosion.

Stop the engine and keep
heat, sparks, and flame

To ensure that the outboard motor
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.

away.
Handle fuel only
outdoors.
Wipe up spills
immediately.

(OUTBOARD MOTOR SIDE)

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

45

OPERATION

FUEL PRIMING STARTING THE ENGINE

H Type (tiller handle)

OUTLET END
(MOTOR)

PRIMING BULB

INLET END
(TANK)

Hold the priming bulb with the outlet
end higher than the inlet end.
Squeeze the priming bulb several
times, until it feels firm, indicating
that fuel has reached the carburetor.

Check to be sure there are no fuel
leaks before starting the engine.

Do not touch the priming bulb with
the engine running or when tilting up
the outboard motor. The carburetor
could overflow.

1.

SWITCH CLIP

ENGINE STOP
SWITCH

LANYARD

Put the emergency stop switch clip
in the engine stop switch, and
attach the lanyard to your PFD
(Personal Flotation Device) or to
your wrist, as shown.

The engine will not start or run,
unless the switch clip is in the
engine stop 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.

46

OPERATION

N (neutral)

OONN

GEARSHIFT LEVER

Check the position of the gearshift

2. 3. 4.(Manual choke type)
lever. It must be in the N (neutral)
position for starting.

To start a cold engine, pull the
choke knob to the ON position. To

CHOKE KNOB

restart a warm engine, leave the

The engine will not start if the

choke knob in the OFF position.
gearshift lever is in the F (forward)
or R (reverse) position.

START POSITION

POINTER

THROTTLE GRIP

Turn the throttle grip to align the
pointer with the START position
to start the engine.

47

OPERATION

Direction to pull

STARTER GRIP

ELECTRIC STARTER
BUTTON

Recoil starter

5.
Pull the starter grip lightly until
you feel resistance, then pull
briskly in the direction of the
arrow as shown above.

Electric starter
(electric start type)
Press the electric starter button and
hold it there until the engine starts.

When the engine starts, release the
button.

If the engine fails to start within 5
seconds, release the button, 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.

Pushing the electric starter button
while the engine is running can
damage the starter motor and
f lywheel.

6.7.(Manual choke type)
If the choke knob was pulled to
the ON position to start the engine,
gradually push it to the OFF
position as the engine warms up.

Also, as the engine warms up, the
throttle grip can be turned to the
SLOW position without stalling.

Before getting under way, allow
the engine to warm up sufficiently
to ensure good performance.

During the warm-up period, check
the oil pressure indicator (p. )
and cooling system indicator
(p. ).

31

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. .

100

30

,

Return the starter grip gently.

48

OPERATION

R Type
(remote control)

For panel-mount or top-mount
remote control information, refer to
the instructions provided with the
remote control equipment.

Side-Mount Type

SWITCH CLIP

EMERGENCY STOP SWITCH

Put the emergency stop switch clip

1.
in the emergency stop switch, and
attach the lanyard to your PFD
(Personal Flotation Device) or to
your wrist, as shown.

LANYARD

The engine will not start or run,
unless the switch clip is in the
emergency stop switch.

The emergency stop switch clip
and lanyard system is a safety
device that will stop the engine if
you fall away from the controls
while operating the boat.

Always attach the lanyard to your
PFD, or to your wrist, before
starting the engine.

N(neutral)

CONTROL
LEVER

Set the control lever in the N

2.
(neutral) position.

The engine will not start if the F
(forward) or R (reverse) gears are
engaged.

49

OPERATION

FAST IDLE

FAST IDLE LEVER

FAST IDLE
RANGE

LOWEST
POSITION

ON

OFF

IGNITION SWITCH KEY

START

Using the electric starter f or more
than 5 seconds at a time will
overheat the starter motor and can
damage it.

Turning the ignition switch key to
the START position while the
engine is running can damage the
starter motor and f lywheel.

To start a cold engine, leave the

3. 4.
fast idle lever in the OFF (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.

50

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.

OPERATION

FAST IDLE LEVER

LOWEST
POSITION

If the fast idle lever was used to

5.
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.

Before getting under way, allow

6.
the engine to warm up sufficiently
to ensure good performance.

Above 41°F (5°C), warm up the
engine for 2 or 3 minutes.

Below 41°F (5°C), warm up the
engine for at least 10 minutes at
2,000 rpm.

During the warm-up period,
check the oil pressure indicator
(p. ), overheat indicator

30

(p. ), and cooling system

30

indicator (p. ).

31

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. .

100 70

EMERGENCY STARTING

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

UNLATCH

ENGINE COVER LATCH

Unlatch and remove the engine

1.
cover (p. ).

51

OPERATION

NEUTRAL START CABLE

RECOIL STARTER
ASSEMBLY

Move the shift lever to the F

2.
(forward) position. Loosen the
neutral start cable lock nut and
disconnect the neutral start cable.

FLANGE BOLT

Unscrew the three flange bolts and

3.

RECOIL STARTER
ASSEMBLY

remove the recoil starter assembly.

Set the controls the same as for

4.
normal starting (see pages

). Use the choke and fast idle

51

46

controls if needed.

Electric start type:
Turn the ignition switch key to the
ON position.

5.
emergency starter rope in the notch
in the flywheel pulley. Wind the
rope clockwise around the
flywheel pulley, as shown.

−

FLYWHEEL PULLEY
(STARTER PULLEY)

STARTER ROPE

Pull the emergency starter rope

6.

KNOT

slowly until resistance is felt, then
pull briskly.

Keep away from moving parts
while pulling the rope.

If necessary, rewind the rope and
pull again. If the engine does not
start after several attempts, refer to

TAKING CARE OF
UNEXPECTED PROBLEMS,

p. .Set the knotted end of the

94

52

OPERATION

If the choke and fast idle control(s)

7.
were used to start the engine,
return the control(s) to the normal
operating position as the engine
warms up.

During the warm-up period, check
the oil pressure indicator (p. ),
overheat indicator (p. ), and
cooling system indicator (p. ).

Leave the recoil starter assembly

8.
off, but install the engine cover
(p. ), and lock it in place by

70

latching the engine cover latch.

30

31

Exposed moving parts can
cause injury.

Do not operate the
outboard motor without
the engine cover.

Use extreme care when
installing the engine
cover.

If it was necessary to remove the

9.
emergency stop switch lanyard
from your wrist to perform the
emergency starting procedure, be
sure the lanyard is attached to your
wrist before operating the
outboard motor.

Have your closest authorized

10.30
Honda marine dealer check your
electrical system and correct the
problem, so you can use the
electric starter.

The recoil starter assembly (p. )
should be reinstalled after the
electric starter is working again.
Install the recoil starter assembly
with the engine stopped.

52

53

OPERATION

STOPPING THE ENGINE

Emergency Engine Stopping

LANYARD

PULL

SWITCH CLIP

LANYARD

SWITCH CLIP

PULL

To stop the engine in an emergency,
pull the switch clip out of the engine
or emergency stop switch by pulling
the lanyard.

We suggest that you stop the engine
this way occasionally to verify that
the engine or emergency stop switch
is operating properly.

Turn the ignition switch key to the
OFF position (electric start type)
after verifying the engine or
emergency stop switch operation.

Normal Engine Stopping

SLOW

THROTTLE GRIP

N(neutral)

GEARSHIFT LEVER

N (neutral)

CONTROL
LEVER

Move the throttle grip to the

1.
slowest position and the gearshift
lever or the remote control lever to
the N (neutral) position.

54

ENGINE STOP SWITCH

IGNITION SWITCH KEY

Turn the ignition switch key to the

2.
OFF position or press the engine
stop switch until the engine stops.

When the boat is not in use,

3.
remove and store the ignition key
andtheemergencystopswitchclip
and lanyard.

OPERATION

55

OPERATION

GEARSHIFT AND THROTTLE OPERATION

H Type (tiller handle)

THROTTLE GRIP

R (reverse)

GEARSHIFT
LEVER

N (neutral)

F(forward)

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.

FIX

RREELLEEAASSEE

THROTTLE GRIP

THROTTLE
FRICTION
ADJUSTER

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.

56

OPERATION

R Type
(remote control)

Side-Mount Type

CONTROL
LEVER

NEUTRAL
RELEASE LEVER

To shift gears, move the control lever
to select F (forward), N (neutral) and
R (reverse) gears.

The control lever cannot be moved
from the N (neutral) position unless
the neutral release lever is squeezed.

Moving the control lever beyond the
gear selection range increases engine
speed.

TO INCREASE
FRICTION

TO DECREASE
FRICTION

REMOTE CONTROL
FRICTION ADJUSTER

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

57

OPERATION

H Type (tiller handle)

R TypeSTEERING
(remote control)

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.

58

LLOOCCKK

STEERING FRICTION LEVER

Use the steering friction lever to help
hold a steady course while cruising.

Move the lever to the LOCK
direction to increase steering friction
for holding a steady course and for
trailering.

Move the lever to the FREE direction
to decrease friction for easy turning.

FFRREEEE

OPERATION

CRUISING

Engine Speed

For best fuel economy, limit the
throttle opening to 80%. Use the
throttle friction control (p. or
p. ) to help you hold a steady

57

speed.

For rough water conditions or large
waves, slow down to prevent the
propeller from rising out of the water.

56

Transom Angle

Install the outboard motor at the best
transom angle for stable cruising and
maximum power. See page for
adjustment procedure.

Transom angle too large: Incorrect
causes boat to ‘‘squat.’’
Transom angle too small: Incorrect
causes boat to ‘‘bow steer’’ (sprayed
water may enter the boat).

It is necessary to adjust the transom
angle of the outboard motor to
compensate for changes in boat load,
weight distribution, water conditions,
or propeller selection.

Under normal running conditions, the
boat will perform best when the
antiventilation plate is level with the
water surface.

43 43

When cruising into a high wind,
adjust the outboard motor down
slightly to level the boat and improve
stability. With a tail wind, adjust the
outboard motor up slightly (p. ).

Excessive trim/tilt angle during
operation can cause propeller
ventilation, overheating, and water
pump damage. This type of damage
is not covered by the

Limited Warranty

MOTOR ANGLE
ADJUSTED TOO
LOW

ROUGH
WAVES

Distributor’s

(p. ).122

MOTOR ANGLE
ADJUSTED TOO
HIGH

MOTOR ANGLE
ADJUSTED
CORRECTLY

59

OPERATION

BOW TOO LOW DUE TO

LOAD IN THE FRONT

1.
MOTOR ANGLE ADJUSTED

2.
TOO LOW

BOW TOO HIGH DUE TO

LOAD IN THE REAR

1.
MOTOR ANGLE ADJUSTED

2.
TOO HIGH

Motor Angle (Cruising)

O.K.

CORRECT
GIVES MAXIMUM PERFORMANCE

60

OPERATION

SHALLOW WATER OPERATION

Manual tilt 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.

ENGINE
COVER
GRIP

30°

To tilt the outboard motor, move the
tilt lever to the TILT position, then
raise the outboard motor to the 30° or
45° position by pulling on the engine
cover grip.

Do not use the tiller handle as a
lever to raise the outboard motor.
Applying excessive f orce to the tiller
handle can damage it.

While the outboard motor is tilted,
proceed at a low speed, and do not
operate the outboard motor in reverse.
The outboard motor will rise
suddenly if operated in reverse.

Monitor water flow from the cooling
system indicator (p. ) to be sure

31
the outboard motor is not tilted so
high that the water intakes are out of
the water.

An excessive trim/tilt angle during
operation can cause propeller
ventilation, overheating, and water
pump damage. This type of damage
is not covered by the

Limited Warranty

Distributor’s

(p. ).122

45°

61

OPERATION

ENGINE COVER GRIP

TILT LEVER

TTIILLTT

RRUUNN
((LLOOCCKK))

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

T Type

When operating in shallow water, use
the power tilt switch to tilt the
outboard motor, so the propeller and
gear case won’t hit the bottom.

Proceed at low speed, and monitor
water flow from the cooling system
indicator (p. ) to be sure the
outboard motor is not tilted so high
that the water intakes are out of the
water.

An excessive trim/tilt angle during
operation can cause propeller
ventilation, overheating, and water
pump damage. This type of damage
is not covered by the

Limited Warranty

31

Distributor’s

(p. ).122

62

OPERATION

MOORING, BEACHING,
LAUNCHING
Manual tilt Type

63° or 64° (when mooring)

To raise the outboard motor out of
the water while the boat is moored, or
for maximum clearance when
beaching or launching, tilt the
outboard motor to the 63° or 64°
position.

Stop the engine before tilting the
outboard motor. The 63° or 64°
position is not an operating position.

T Type

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 (T type) to tilt the outboard
motor as far as it will go, move the
tilt lock lever to the LOCK position,
then gently lower the outboard motor
until the lever contacts the stern
bracket.

If more clearance is needed to swing
the tilt lock lever into the LOCK
position, rock the outboard motor
forward slightly by pulling on the
engine cover grip.

To lower the outboard motor, tilt up
using the power tilt switch, then
move the tilt lock lever to the FREE
position, and lower the outboard
motor to the desired position.

FFRREEEE

TILT LOCK
LEVER
(lock position)

LLOOCCKK

Do not attempt to use the power tilt
switch to tilt the outboard motor
down while the tilt lock lever is in the
lock position. Damage to the power
tilt system may occur.

Raise and lower the outboard motor
as described on p. .

61

63

OPERATION

T Type

MANUAL RELIEF VALVE

POWER
(Valve closed
to fix)

MANUAL
(Valve open
to release)

※

※

:

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.

RIGHT STERN BRACKET

Do not turn this screw. If this
screw is turned hydraulic oil
will bleed out of the power tilt
system. Should this happen it
will be necessary to contact your
closest authorized Honda marine
dealer and have the system
refilled.

For manual tilting, use a flat blade
screwdriver to turn the valve
counterclockwise 2 and a half turns.
Close the valve firmly after
positioning the engine.

Be sure the valve is closed before
operating the outboard motor. If the
valve is not closed, the outboard
motor will tilt up when operated in
reverse.

64

SERVICING YOUR OUTBOARD MOTOR

THE IMPORTANCE OF MAINTENANCE

Proper 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.

Honda will not deny a claim for
warranty coverage simply because
you did not maintain your outboard.
However, any part that fails due to
lack of maintenance, or improper
maintenance will not be covered
under your product warranty.

Remember that your authorized
Honda marine dealer knows your
outboard motor best and is f ully
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.

65

SERVICING YOUR OUTBOARD MOTOR

MAINTENANCE SAFETY Safety Precautions

Some of the most important safety
precautions follow. However, we
cannot warn you of every
conceivable hazard that can arise in
performing maintenance. Only you
can decide whether or not you should
perform a given task.

Failure to properly follow
maintenance instructions
and precautions can cause
you to be seriously hurt or
killed.

Always follow the
procedures and
precautions in the owner’s
manual.

Make sure the engine is off before
you begin any maintenance or
repairs. This will eliminate several
potential hazards:

−

Carbon monoxide poisoning
from engine exhaust.

Be sure there is adequate
ventilation whenever you
operate the engine.

−

Burns from hot parts.

system cool before touching.

−

Injury from moving parts.

Do not run the engine unless
instructed to do so.

Read the instructions before you
begin, and make sure you have the
tools and skills required.

To reduce the possibility of fire or
explosion, be careful when
working around gasoline. Use only
a nonflammable solvent, not
gasoline, to clean parts. Keep
cigarettes, sparks, and flames away
from all fuel-related parts.

Wear gloves when handling the
propeller to protect your hands
from sharp edges.Let the engine and exhaust

66

SERVICING YOUR OUTBOARD MOTOR

TOOL KIT AND EMERGENCY STARTER ROPE

EMERGENCY STARTER ROPE

The following tools are supplied with
the outboard motor for simple
maintenance procedures and
emergency repairs. An emergency
starter rope is also supplied. Keep
these items on the boat, so they will
always be available if you need them.

If your tool kit needs replacement, it
is not available as a kit and each item
must be ordered individually.

TOOL KIT

8 mm WRENCH

×

10 12 mm WRENCH

PHILIPS SCREWDRIVER

OIL CHECK SCREWDRIVER

FLAT SCREWDRIVER

SCREWDRIVER GRIP

4 mm HEX. WRENCH

PLIERS

SPARK PLUG WRENCH

10 mm SOCKET WRENCH

TOOL BAG

SPARE CLIP

67

SERVICING YOUR OUTBOARD MOTOR

MAINTENANCE SCHEDULE

Follow the MAINTENANCE SCHEDULE table and service your outboard motor accordingly. Please note, a claim for
warranty coverage will not be denied simply because the maintenance schedule for your outboard was not followed.
However, any part(s) that fails specifically due to lack of maintenance, or improperly perf ormed maintenance, would
not be covered under the .

Distributor’s Limited Warranty

REGULAR SERVICE PERIOD
Perform at every indicated month or
operating hour interval, whichever
comes first.
ITEM

Engine oil

Gear case oil
Timing belt
Engine oil filter
Starter rope
Carburetor linkage
Idle speed
Valve clearance
Spark plug

Propeller and cotter pin
Lubrication
Fuel tank and tank filter

(3)

Check level
Change
Change
Check
Replace
Check
Check-adjust
Check-adjust
Check-adjust
Check-adjust
Replace
Check
Grease
Clean

Each use

○

○

After use

First month

or

20 hrs.

○
○

(2)

○

(2)

○

(1)

○

Every 6 months

or

100 hrs.

○
○

○

(2)

○

(2)

○

○

(1)

○

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

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

(2)

Refer to the Honda shop manual for service procedures.

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

(3)

68

Every year

or

200 hrs.

(2)

○

○

(2)

○

○

○

SERVICING YOUR OUTBOARD MOTOR

REGULAR SERVICE PERIOD
Perform at every indicated month or
operating hour interval, whichever
comes first.
ITEM

Fuel filter

Thermostat
Fuel line

Battery and cable connection
Bolts and nuts
Crankcase breather tube
Anode
Cooling water passages
Water pump

(3)

Check
Replace
Check
Check
Replace
Check level-tightness
Check-tightness
Check
Check
Clean
Check

Each use

○

○

○

After use

Every 2 years (if necessary) (2)

(4)

○

First month

or

20 hrs.

(2)

○

Every 6 months

or

100 hrs.

○

(2)

○

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

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

(2)

Refer to the Honda shop manual for service procedures.

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

(3)

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

(4)

Every year

or

200 hrs.

○

(2)

○

(2)

○

(2)

○

69

SERVICING YOUR OUTBOARD MOTOR

MANUAL RELIEF VALVE ENGINE COVER REMOVAL

RIGHT STERN BRACKET

PPOOWWEERR
((VVaallvvee cclloosseedd
ttoo ffiixx))

For manual tilting, use a flat blade
screwdriver to turn the valve
counterclockwise 2 and a half turns.
Close the valve firmly after
positioning the engine.

AND INSTALLATION(T type)

(REAR)

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 LATCH

※

MANUAL RELIEF VALVE

※

Do not turn this screw. If this

:

MMAANNUUAALL
((VVaallvvee ooppeenn
ttoo rreelleeaassee))

screw is turned hydraulic oil
will bleed out of the power tilt
system. Should this happen it

(FRONT)

will be necessary to contact your
closest authorized Honda marine
dealer and have the system
refilled.

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.

70

SERVICING YOUR OUTBOARD MOTOR

(INSTALLATION)

The engine cover latch fastens the
engine cover to the outboard motor.

To remove the engine cover, unlatch
the engine cover latch, then lift the
engine cover off the outboard motor.

To install the engine cover, place the
cover on the outboard motor, then
latch the engine cover latch securely.

Engine Oil Level Check

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

Unlatch and remove the engine

1.

cover.

Remove the dipstick and wipe it

2.

clean.

OIL LEVEL DIPSTICK

UPPER
LIMIT

LOWER
LIMIT

Insert the dipstick all the way in,

3.

then remove it and check the oil
level shown on the dipstick.

OIL FILLER CAP

If the oil level is low, remove the

4.
oil filler cap, and add oil to reach
the upper limit mark shown on the
dipstick. Use the oil recommended
on p. .

74

Running the engine with a low oil
level can cause engine damage.

Install the oil filler cap and tighten

5.
it securely.

Install and lock the engine cover.

6.

71

SERVICING YOUR OUTBOARD MOTOR

Engine Oil Change

An engine oil evacuation device may
be used to remove the engine oil.

Drain the used oil while the engine is
warm. Warm oil drains quickly and
completely.

Unlatch and remove the engine

1.
cover (p. ).

70

ENGINE OIL DRAIN SCREW

Remove the oil filler cap, and

2.
place a suitable container below
the drain screw hole to catch the
used oil, then remove the engine
oil drain screw.

Allow the used oil to drain

3.
completely, then reinstall the
engine oil drain screw, and tighten
it securely.

Inspect the sealing O-ring and
replace if damaged or torn.

Improper disposal of engine oil
can be harmful to the environment.
If you change your own oil, please
dispose of the used oil properly.
Put it in a sealed container, and
take it to a recycling center. Do
not discard it in a trash bin, dump
it on the ground or pour it down a
drain.

With the outboard motor in a

4.
vertical position, fill to the upper
limit mark on the dipstick (p. )
with the recommended oil.

Engine oil refill capacity:
Without oil filter change:

1.1 US qt (1.0

With oil filter change:

1.2 US qt (1.1 )

Install the oil filler cap and tighten

5.
it securely.

Install and lock the engine cover.

6.

)

71

72

SERVICING YOUR OUTBOARD MOTOR

Oil Filter Change

Drain the engine oil, and reinstall

1.
the drain screw (see Engine Oil
Change on p. ).

Unscrew the six bolts and remove

2.
the R. engine under cover.

Use a suitable tool to remove the

3. 4.
oil filter, and thoroughly drain the
filter into the used oil container.

72

USE A SUITABLE TOOL

5.

OIL FILTER

RUBBER SEAL

Clean the oil filter mounting base,
and coat the rubber seal of the new
oil filter with clean engine oil.

Use only a genuine Honda oil
f ilter or a f ilter of equivalent
quality specified f or your model.
Using the wrong f ilter, or a non­Honda f ilter which is not of
equivalent quality, may cause
engine damage.

Screw on the new filter by hand
until it contacts the engine, then
use a suitable tool to tighten the
filter an additional 7/8 turn.

OIL FILTER TIGHTENING
TORQUE:

9 lbf·ft (12 N·m , 1.2 kgf·m)

Fill the crankcase with the

6.
specified amount (p. ) of the

72
recommended oil.
Start the engine and check for

7.
leaks.

Running the engine without water
can cause serious engine damage.
If you are changing the oil filter
while the outboard motor is out of
the water, place the unit in water
or supply adequate water to the
water intakes before running the
engine.
Do not run the engine with the
f lush attachment on the power
head.

Stop the engine, and check the oil

8.
level as described on page . If

71
necessary, add oil to bring the oil
level to the upper limit mark on the
dipstick.

73

SERVICING YOUR OUTBOARD MOTOR

Engine Oil Recommendations Gear Case Oil Level Check

The SAE oil viscosity and service

classification are in the API label on
Oil is a major factor affecting
performance and service life. Use
4-stroke automotive detergent oil.

the oil container. Honda recommends

that you use API SERVICE category

SG, SH or SJ oil with the ‘‘starburst’’

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

certification mark displayed on the

LEVEL SCREW

AMBIENT TEMPERATURE

SAE 10W-30 is recommended for

container.

DRAIN SCREW

general use.

Remove the oil level screw and see
whether oil flows from the oil level
hole.

If oil flows from the oil level hole,
the oil level is OK. Reinstall the
screw and tighten it securely.

74

OIL LEVEL SCREW TORQUE:

4.8 lbf·ft (6.5 N·m , 0.66 kgf·m)

SERVICING YOUR OUTBOARD MOTOR

If no oil flows from the oil level hole,
add the recommended oil (p. )
following the procedure described in
Gear Case Oil Change.

76

Gear Case Oil Change

Change the gear case oil with the

engine stopped and the outboard

motor in the vertical position.

Place a suitable container below

1.
the oil drain hole to catch the used
oil, then remove the oil level screw
and oil drain screw.

Allow the used oil to drain

2.
completely, then install an oil
pump adapter in the oil drain hole.

If water or contaminated (milky­colored) oil flows out the drain
hole when the screw is removed,
have the outboard motor checked
by an authorized Honda marine
dealer.

75

SERVICING YOUR OUTBOARD MOTOR

OIL LEVEL SCREW TORQUE:

4.8 lbf·ft (6.5 N·m , 0.66 kgf·m)

Avoid losing more than 1 fl oz (30

3

cm ) while reinstalling the drain
screw.

OIL DRAIN SCREW TORQUE:

4.8 lbf·ft (6.5 N·m , 0.66 kgf·m)

GEAR OIL BOTTLE

Add oil through the oil drain hole

3.
until it flows out the oil level hole,
then install the oil level screw and
the oil drain screw.

GEAR CASE OIL CAPACITY:

0.31 US qt (0.29 )

Outboard motor SAE 90 hypoid
gear oil API Service classification
(GL-4)

76

SERVICING YOUR OUTBOARD MOTOR

Lubrication Points

Apply marine waterproof grease to the following parts:
Lubrication interval:
20 operating hours or one month after the date of
purchase or the initial use, then every 100 hours or 6
months (refer to the maintenance schedule on page ).68

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

TILT SHAFT

TILLER HANDLE

CLAMP SCREWS

ADJUSTING ROD/
TILT STOPPER

THROTTLE REEL

MOUNT FRAME

SWIVEL CASE

PROPELLER SHAFT

Apply Honda Marine Corrosion Inhibitor (or equivalent) to all areas under the engine cover and any exposed metal
surfaces except the belts.

77

SERVICING YOUR OUTBOARD MOTOR

Spark Plug Service

RECOMMENDED SPARK PLUGS:

CR5EH-9 (NGK)
U16FER9 (DENSO)

Incorrect spark plugs can cause
engine damage.

Unlatch and remove the engine

1.
cover (p. ).

Disconnect the spark plug caps

2.
from the spark plugs.

Remove the spark plugs with a

3.
sparkplugwrench.

70

SPARK PLUG
WRENCH

Inspect the spark plugs. Replace

4. 5.

SPARK PLUG CAP

them if the electrodes are worn, or
if the insulators are cracked or
chipped.

SIDE ELECTRODE

0.031 0.035 in

−

(0.8 0.9 mm)

−

SEALING
WASHER

Measure the spark plug electrode
gap with a wire-type feeler gauge.
Correct the gap, if necessary, by
carefully bending the side
electrode.

The gap should be:

0.031 0.035 in

−

(0.8 0.9 mm)

−

78

SERVICING YOUR OUTBOARD MOTOR

Install the spark plugs carefully,

6.
by hand, to avoid cross-threading.

After each spark plug seats, tighten

7.
with a spark plug wrench supplied
in the tool kit to compress the
sealing washer.

If reinstalling the used spark plug,
tighten 1/8 1/4 turn after the

−

spark plug seats.

If installing new spark plugs,
tighten 1/2 turn after the spark
plug seats.

Loose spark plugs can overheat
and damage the engine.
Overtightening the spark plugs
can damage the threads in the
cylinder head.

Attach the spark plug caps.

8.

Install and lock the engine cover.

9.

REFUELING

Portable Fuel Tank

FUEL TANK CAPACITY:

3.2 US gal (12

Check the fuel gauge and refill the
tank when necessary.

Remove the fuel tank from the boat
for refueling.

VENT KNOB

FUEL FILLER CAP

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

)

CLOSED

OOPPEENN

79

SERVICING YOUR OUTBOARD MOTOR

Gasoline is highly
flammable and explosive.

You can be burned or
seriously injured when

FUEL GAUGE

SAFE FILL LEVEL

Refuel in a well-ventilated area. Fill
the tank to the SAFE FILL LEVEL
line.

After refueling, install the cap and
tighten it securely. Turn the vent
knob clockwise to the CLOSED
position, and return the fuel tank to
the boat.

handling fuel.

Stop the engine and keep
heat, sparks, and flame
away.
Handle fuel only
outdoors.
Wipe up spills
immediately.

Never refill the fuel tank inside a
building where gasoline fumes
may reach flames or sparks. Keep
gasoline away from appliance pilot
lights, barbecues, electric
appliances, power tools, etc.
Spilled fuel is not only a fire hazard,
it causes environmental damage.
Wipe up spills immediately.

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.

You may use regular unleaded
gasoline containing no more than
10% Ethanol (E10) or 5% Methanol
by volume. In addition, Methanol
must contain cosolvents and
corrosion inhibitors.
Use of fuels with content of Ethanol
or Methanol greater than shown
above may cause starting and/or
performance problems. It may also
damage metal, rubber, and plastic
parts of the fuel system.

80

SERVICING YOUR OUTBOARD MOTOR

Engine damage or performance
problems that result from using a fuel
with percentages of Ethanol or
Methanol greater than shown above
are not covered under warranty.

If your outboard will be used on an
infrequent or intermittent basis,
please refer to the fuel section of the
STORAGE chapter (p. ) for
additional information regarding fuel
deterioration.

Fuel Filter Inspection and Replacement

The fuel filter is located under the
engine cover, on the right side of the
engine.
Water or sediment accumulation in
the filter can cause loss of power or
hard starting. To prevent engine
malfunction, inspect the filter and
replace when necessary.88

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.

81

SERVICING YOUR OUTBOARD MOTOR

UNLATCH

ENGINE COVER LATCH

Unlatch and remove the engine

1.
cover for access to the fuel pump
filter.

FUEL FILTER

Inspect the filter for water and/or
sediment accumulation.

If the filter is OK, reinstall it. If
water and/or sediment are present,
replace the filter as described in
the following steps. Always
replace the filter at the scheduled
replacement interval (p. ).

HOSE CLIPS
(commercially available)

FUEL FILTER

69

Disconnect the fuel hose connector

3.2.
from the outboard motor, and
place commercially available hose
clips on the fuel hoses on each side
of the filter to prevent fuel leakage
when the fuel hoses are
disconnected.

HOSE CLIPS

FUEL HOSES

FUEL FILTER

HOSE CLAMPS

Remove the fuel hoses from the

4.

FUEL HOSE
CONNECTOR

used filter, and discard the filter.

To ease hose removal, release the
hose clamps by squeezing the
clamp ends together with pliers
while pulling off the hoses.

82

SERVICING YOUR OUTBOARD MOTOR

ARROW
(Fuel Flow Direction)

Install the new filter on the fuel

5.
hoses, with the fuel flow arrow
pointing toward the fuel pump as
shown. Fuel flow will be impeded
if the filter is installed backward.

Remove the fuel hose clips used to

6.
close the fuel hoses, and connect
the fuel hose connector to the
outboard motor. Check for leaks.

Install and lock the engine cover.

7.

Portable Fuel Tank and Tank Filter Cleaning

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

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.

83

SERVICING YOUR OUTBOARD MOTOR

Fuel Tank Filter

TANK FILTER JOINT
(Fuel Hose Connector)

O-RING

FILTER

Unscrew the fuel hose connector

1.
by turning it counterclockwise,
then remove the fuel hose
connector and fuel filter from the
tank.

Clean the filter in nonflammable

2.
solvent. Inspect the fuel tank f ilter
and the connector O-ring. Replace
them if damaged.

Reinstall the filter and hose

3.
connector in the fuel tank. Tighten
the hose connector securely.

Recoil Starter Rope Inspection Anode Replacement

RECOIL STARTER ROPE

ANODE
(T type only)

Inspect the recoil starter rope, and
replace it if it becomes frayed.

The anodes are located on each side
Always keep the emergency starter
rope on the boat in case the recoil
starter rope fails.

of the gear case and the stern bracket

(T type). 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.

ANODES

84

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.

Choke Knob Friction (manual choke type)

SERVICING YOUR OUTBOARD MOTOR

FRICTION ADJUSTING NUT

RRUUBBBBEERR CCOOVVEERR

IINNCCRREEAASSEE
FFRRIICCTTIIOONN

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.

CHOKE KNOB

OOFFFF

OONN

If the choke knob returns to the OFF
position by itself, you can adjust the
friction that holds the knob in the ON
position.

To adjust the friction, squeeze the
rubber cover to grip the adjusting nut
and turn it clockwise to increase the
friction. Do not force the adjusting
nut. If it is too hard to turn by hand,
contact your Honda Marine dealer
for assistance.

Operating the outboard motor at

higher altitudes will reduce available

power. This may require decreasing

the propeller pitch to maintain correct

engine RPM.

Removal

COTTER PIN

85

SERVICING YOUR OUTBOARD MOTOR

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

Installation

MARINE GREASE

PROPELLER

PLAIN
WASHER

CASTLE
NUT

TOWARD
GEAR CASE

COTTER PIN

THRUST WASHER

Apply marine grade grease to the

1.
propeller shaft.

Install the thrust washer with the

2.
grooved side toward the gear case.

Lightly tighten the castle nut by

4.
hand or wrench until the propeller
has no free play.

Tighten the castle nut using torque

5.
wrench.
CASTLE NUT TIGHTENING
TORQUE:

2.89 lbf·ft (4 N·m)

Then, using a torque wrench,

6.
tighten the castle nut until the f irst
available groove in the castle nut
aligns with the cotter pin hole. Do
not tighten past the first alignment
of the castle nut groove and the
cotter pin hole.

TIGHTENING TORQUE LIMIT:

12 lbf·ft (17 N·m)

Do not tighten the castle nut above
the TIGHTENING TORQUE LIMIT
or the propeller and shaft may be
damaged.

COTTER PIN

Be sure to replace the cotter pin

7.
with a new one.

Use a genuine Honda stainless
steel cotter pin or equivalent
cotter pin and bend the pin ends
as shown.

Note that these wrenches are not
included with the tool set that
comes with the outboard motor.
Contact your authorized Honda
Marine dealer for additional tool
information.

Install the propeller and the plain

3.
washer.

86

STORAGE

STORAGE PREPARATION

Proper storage preparation is
essential for keeping your outboard
motor trouble-free and looking good.
The following steps will help to keep
rust and corrosion from impairing
your outboard motor’s function and
appearance, and will make the engine
easier to start when you use the
outboard motor again.

Cleaning and Flushing

Thoroughly clean and flush the
outboard motor with 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 to

remove mud, salt, seaweed, etc.

Disengage the switch clip from the
engine stop switch (H type) or
emergency stop switch (R type), and
pull the starter grip several times to
expel any water remaining in the
water pump.

Flushing With the Honda
Garden Hose Adapter (optional
equipment)

Unlatch the engine cover latch and

1.
remove the engine cover (p. ),
and install the garden hose adapter.

Attach a garden hose from a fresh

2.
water faucet to the garden hose
adapter.

Turn on the fresh water supply,

3.
and verify that there is good water
pressure at the outboard motor.

Flush the engine with fresh water

4.
for at least 10 minutes.

70

GARDEN HOSE
ADAPTER

Do not run the engine.

After flushing, remove the
garden hose adapter, reinstall
the engine cover.

87

STORAGE

Flushing Without the Honda
Garden Hose Adapter

It is necessary to run the engine
during the flushing procedure. For
safety, remove the propeller from the
outboard motor (p. ).

ANTIVENTILATION PLATE

Place a container under the
outboard motor, and fill it with
clean, fresh water. The water level
must be at least 2 inches above the
antiventilation plate.

86

Running the engine without good
water circulation can cause
overheating and water pump
damage.

Damage caused by running the
outboard motor without sufficient
cooling water is not covered by the

Distributor’s Limited Warranty

(p. ).

122

Start the engine and run in the N

2.
(neutral) position at low speed for
at least 10 minutes.

After flushing, stop the engine,

3.
remove the water container, and
reinstall the propeller (p. ).

86

Fuel

Depending on the region where you
operate your outboard, fuel
f ormulations may deteriorate and
oxidize rapidly. Fuel deterioration
and oxidation can occur in as little
as 15 days and may cause damage to
the carburetors and fuel system.
Please check with your servicing
dealer f or local storage
recommendations.

Gasoline will oxidize and deteriorate
in storage. Old gasoline will cause
hard starting, and it leaves gum
deposits that clog the fuel system. If
the gasoline in your fuel tank and
carburetor deteriorates during storage,
you may need to have the carburetor
and other fuel system components
serviced or replaced.1.

88

STORAGE

The length of time that gasoline can
be left in your fuel tank and
carburetor without causing functional
problems will vary with such factors
as gasoline blend, your storage
temperatures, and whether the fuel
tank is partially or completely filled.
The air in a partially filled fuel tank
promotes fuel deterioration. Very
warm storage temperatures accelerate
fuel deterioration. Fuel deterioration
problems may occur in less than 30
days, if the gasoline was not fresh
when you filled the fuel tank.

Distributor’s Limited Warranty

The
(p. ) does not cover fuel system

122
damage or engine performance
problems resulting from neglected
storage preparation.

You can extend fuel storage lif e by
adding a gasoline stabilizer that is
formulated for that purpose, or you
can avoid fuel deterioration problems
by draining all the fuel from the fuel
tank and carburetor.

Adding a Fuel Stabilizer Draining the Fuel System

When adding a fuel stabilizer, fill the
fuel tank with fresh gasoline. If only
partially filled, air in the tank will
promote fuel deterioration during
storage. If you keep an additional
container of gasoline for refueling,
be sure that it contains only fresh
gasoline.

Add fuel stabilizer following the

1.
manufacturer’s instructions.

After adding a fuel stabilizer, run

2.
the engine in water for 10 minutes
to be sure that the treated gasoline
has replaced the untreated gasoline
in the carburetor.

Turn the engine OFF.

3.

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

Disconnect the fuel hose from the

1.
outboard motor.

DRAIN SCREW

89

STORAGE

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.
Loosen the drain screw to drain
fuel from the carburetor.

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.

After the fuel has drained from the

3.2.
carburetor, tighten the drain screw
securely.

Drain the portable fuel tank into an

4.
approved gasoline container, or if
you need to store fuel in the fuel
tank, you can extend fuel storage
life by f illing the fuel tank with
fresh gasoline and adding a fuel
stabilizer that is formulated for
that purpose. Firmly close the fuel
cap vent knob.

Store the portable fuel tank in a
cool place.

90

STORAGE

Engine Oil STORAGE PRECAUTIONS

Change the engine oil and the oil

1.
filter (p. ).

Remove the spark plugs (p. ),

2.

−

72 73

and remove the clip from the
engine stop switch (H type) or
emergency stop switch (R type).

Pour a tablespoon (5 10 cm ) of

3.

−

clean engine oil into each cylinder.

Pull the starter grip several times

4.
to distribute the oil in the cylinder.

Reinstall the spark plugs (p. ).

5.

78

3

79

Select a well-ventilated storage area.
If possible, avoid storage areas with
high humidity.

CARRYING HANDLE

To carry the outboard motor, hold it
by the carrying handle, or hold by the
carrying handle and the lug beneath
the engine cover latch, as shown.

Lif ting the outboard motor by the
engine cover, or using the installed
outboard motor as a handle or lever
to move the boat, can damage the
outboard motor.

If your portable fuel tank contains
gasoline, 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.

LUG

91

STORAGE

PROTECTOR

CASE PROTECTOR

Any other horizontal storage position
may cause damage to the outboard
motor or oil leakage.

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.

Store the outboard motor either
vertically or horizontally with the
tiller handle side up.

92

If it is necessary to store the outboard
horizontally, drain the carburetor (p.

) and drain the engine oil (p. ),
before removing the outboard motor
from the boat.

Fold the tiller handle, and rest the
outboard motor on its case protectors.
Be sure all water has drained from
the outboard motor before placing it
on its side, so no residual water can
enter the engine exhaust port.

7289

REMOVAL FROM STORAGE

Check your outboard motor as
described in the

OPERATION

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

BEFORE

chapter of this manual.

TRANSPORTING

WITH OUTBOARD MOTOR INSTALLED ON BOAT

When trailering a boat with the
outboard motor attached, leave the
engine in the normal running position,
if possible, and tighten the steering
friction lever securely (p. ).

If there is insufficient road clearance
in the normal running position, then
tilt the outboard motor and use a
motor support bar, or remove the
outboard motor from the boat. Refer
to the manufacturer’s instructions for
using a motor support bar.

MOTOR SUPPORT BAR
(commercially available)

58

WITH OUTBOARD MOTOR REMOVED FROM BOAT

Secure the outboard motor in either
the vertical or horizontal position
shownonp. .

LUG

92

CARRYING HANDLE

To carry, hold the outboard motor by
the carrying handle, or hold by the
carrying handle and the lug beneath
the engine cover lock latch, as shown.

Lif ting the outboard motor by the
engine cover, or using the
installed outboard motor as a
handle or lever to move the boat,
can damage the outboard motor.

93

TAKING CARE OF UNEXPECTED PROBLEMS

ELECTRIC STARTER WILL

NOT OPERATE

Check battery (electric start

1.
type).

Check fuse. Fuse burnt out. Replace fuse (p. ).

2.

Use emergency starting

3.
procedure (p. ), then take
outboard motor to an authorized
Honda marine dealer, or refer to
the shop manual.

51

Battery connections loose or
corroded.

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

Possible Cause Correction

Clean and tighten battery
connections.

Recharge battery.Battery discharged.

Replace or repair faulty
components as necessary.

99

94

TAKING CARE OF UNEXPECTED PROBLEMS

CorrectionPossible CauseENGINE WILL NOT START

Check engine stop switch clip or

1.
emergency stop switch clip.

Check control positions. Shift to neutral (p. or p. ).

2.

Clip not inserted in stop switch. Insert clip in stop switch.

Gearshift lever or control lever not
in neutral position.

Choke OFF (tiller handle and
manual choke type).

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

Fast idle lever raised (remote
control/side-mount type).

Pull choke knob to ON position,
unless engine is warm (p. ).

Turn throttle grip to START
position (p. ).

Leave fast idle lever OFF, if the
engine is warm (p. ).

47

47 49

50

47

95

TAKING CARE OF UNEXPECTED PROBLEMS

(continued)

CorrectionPossible CauseENGINE WILL NOT START

Check fuel. Out of fuel.

3.

Remove and inspect spark plugs.

4.

Take outboard motor to an

5.
authorized Honda Marine dealer,
or refer to the shop manual.

96

Fuel vent closed (portable fuel
tank).

Fuel hose not primed.

Fuel filter or fuel tank filter
restricted.

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.

Refuel (p. ).

Open fuel filler cap vent (p. ).

Squeeze priming bulb (p. ).

Replace restricted filters (p. or

).

84

Drain fuel tank and carburetors
(p. ). Ref ill with f resh gasoline

89

(p. ).

79

Gap or replace spark plugs (p. ).

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

Replace or repair faulty
components as necessary.

79

79

46

81

78

AFTER STARTING

TAKING CARE OF UNEXPECTED PROBLEMS

CorrectionPossible CauseHARD STARTING OR STALLS

Check control positions. Choke OFF (tiller handle and

1.

manual choke type).

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

Fast idle lever raised (remote
control/side-mount type).

Check fuel.

2.

Fuel vent closed (portable fuel
tank).

Fuel hose not primed.

Fuel filter or fuel tank filter
restricted.

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

Pull choke knob to ON position,
unless engine is warm (p. ).

Turn throttle grip to START
position (p. ).

Leave fast idle lever OFF, unless
engine is warm (p. ).

Open fuel filler cap vent (p. ).

Squeeze priming bulb (p. ).

Replace restricted filters (p. or

).

84

Drain fuel tank and carburetors
(p. ). Ref ill with f resh gasoline

89

(p. ).

79

47

47

50

79

46

81

97

TAKING CARE OF UNEXPECTED PROBLEMS

HARD STARTING OR STALLS

AFTER STARTING

(continued)

Possible Cause Correction

Remove and inspect spark plugs.

3.

Take outboard motor to an

4.
authorized Honda Marine dealer,
or refer to the shop manual.

ENGINE OVERHEATS Possible Cause Correction

Check water intake screens. Water intake screens clogged. Clean water intake screens.

1.

Take outboard motor to an

2.
authorized Honda Marine dealer,
or refer to the shop manual.

Spark plugs faulty, fouled or
improperly gapped.

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

Faulty thermostat or water pump. Replace or repair faulty

Gap or replace spark plugs (p. ).

Replace or repair faulty
components as necessary.

components as necessary.

98

78