The engine exhaust from this
product contains chemicals
known to the State of California to
cause cancer, birth defects, or
other reproductive harm.
Keep this owner’s manual handy, so you can refer to it at any time. This owner’s
manual is considered a permanent part of the outboard motor and should remain with
the outboard motor if resold.
The information and specifications included in this publication were in effect at the
time of approval for printing. Honda Motor Co., Ltd. reserves the right, however, to
discontinue or change specifications or design at any time without notice and without
incurring any obligation whatever. No part of this publication may be reproduced
without written permission.
Page 3
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
Page 4
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 informationplease read it
carefully.
−
on the outboard motor.
−
preceded by a safety alert symboland one of
You WILL be KILLED or SERIOUSLY
HURT if you don’t follow instructions.
You CAN be KILLED or SERIOUSLY
HURT if you don’t follow instructions.
You CAN be HURT if you don’t follow
instructions.
−
such as
−
such as
−
how to use this outboard motor correctly and safely.
IMPORTANT SAFETY INFORMATION.
OUTBOARD MOTOR SAFETY.
−
2
Page 5
CONTENTS
...................................OUTBOARD MOTOR SAFETY. 7
...................Emission Control System Warranty. 110
..TECHNICAL AND CONSUMER INFORMATION . 94
6
Page 9
OUTBOARD MOTOR SAFETY
IMPORTANT SAFETY
INFORMATION
The Honda BF40A and BF50A
outboard motors are designed for use
with boats that have a suitable
manufacturer’s power
recommendation. Other uses can
result in injury to the operator or
damage to the outboard motor and
other property.
Most accidents can be prevented if
you follow all instructions in this
manual and on the outboard motor.
The most common hazards are
discussed below, along with the best
way to protect yourself and others.
Operator Responsibility
It is the operator’s responsibility to
provide the necessary safeguards
to protect people and property.
Know how to stop the engine
quickly in case of emergency.
Understand the use of all controls.
Stop the engine immediately if
anyone falls overboard, and do not
run the engine while the boat is
near anyone in the water.
Always stop the engine if you
must leave the controls for any
reason.
Attach the emergency stop switch
lanyard securely to the operator.
Always wear a PFD (Personal
Flotation Device) while on the
boat.
Familiarize yourself with all laws
and regulations relating to boating
and the use of outboard motors.
Be sure that anyone who operates
the outboard motor receives proper
instruction.
Be sure the outboard motor is
properly mounted on the boat.
Do not remove the engine cover
while the engine is running.
7
Page 10
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
Page 11
SAFETY LABEL LOCATIONS
OUTBOARD MOTOR SAFETY
(LH type)
The labels shown here contain important safety information. Please read them carefully. These labels are considered
permanent parts of your outboard motor. If a label comes off or becomes hard to read, contact an authorized Honda
marine dealer for a replacement.
9
Page 12
CONTROLS AND FEATURES
CONTROL AND FEATURE IDENTIFICATION CODES
Model
Type
Shaft Length
Long Tiller Handle
Remote Control
Gas Assist Tilt
Power Trim/Tilt
Tachometer (optional equipment)
Trim Meter (optional equipment)
Refer to this chart for an explanation of the Type Codes used in this manual to identify control and feature applications.
TYPE CODE (Example)
L
RT
T=Power Trim/Tilt
H=Long Tiller Handle
R=Remote Control
L=Long Shaft
X=Extra Long Shaft
L
X
BF40ABF50A
XRTLRTLHTLRTLHTLH
10
Page 13
COMPONENT AND CONTROL LOCATIONS
LH and LHT Types
(long tiller handle)
FUEL HOSE CONNECTOR
CONTROLS AND FEATURES
OIL FILLER CAP
LONG TILLER
HANDLE
STERN
BRACKET
TRANSOM ANGLE
ADJUSTING ROD
GEAR OIL LEVEL
CHECK PLUG
WASH PLUG
(Flush plug)
GEAR OIL
DRAIN PLUG
ENGINE COVER
POWER TILT
SWITCH
(LHT type)
ANTIVENTILATION
PLATE
TRIM TAB (anode)
EXHAUST PORT
PROPELLER
(optional equipment)
OIL LEVEL
DIPSTICK
COOLING
SYSTEM
INDICATOR
ENGINE OIL
DRAIN PLUG
COVER
TILT LOCK LEVER
TILT LEVER
(LH type)
MANUAL RELIEF VALVE
(LHT Type)
WATER INTAKE
11
Page 14
CONTROLS AND FEATURES
GEARSHIFT LEVER
THROTTLE FRICTION ADJUSTER
POWER TRIM/TILT SWITCH
(LHT type)
THROTTLE GRIP
OIL PRESSURE
INDICATOR LIGHT
OVERHEAT
INDICATOR LIGHT
IGNITION SWITCH
SWITCH CLIP
EMERGENCY STOP SWITCH
LANYARD
STEERING FRICTION ADJUSTER
IGNITION SWITCH KEY
12
Page 15
LRT and XRT Types (remote control)
CONTROLS AND FEATURES
FUEL HOSE
CONNECTOR
STEERING
PLATE
TRANSOM ANGLE
ADJUSTING ROD
GEAR OIL LEVEL
CHECK PLUG
WASH PLUG
(Flush plug)
ENGINE COVER
GEAR OIL
DRAIN PLUG
POWER TILT SWITCH
COOLING SYSTEM
INDICATOR
ENGINE OIL DRAIN
PLUG COVER
TRIM TAB
(anode)
EXHAUST PORT
PROPELLER
(optional equipment)
OIL FILLER CAP
OIL LEVEL
DIPSTICK
TILT LOCK LEVER
STERN
BRACKET
MANUAL RELIEF
VALVE
ANTIVENTILATION
PLATE
WATER INTAKE
13
Page 16
CONTROLS AND FEATURES
Remote Control box (side-mount type/optional equipment)
GEARSHIFT/THROTTLE
POWER TRIM/TILT SWITCH
SPARE SWITCH CLIP
CONTROL LEVER
NEUTRAL RELEASE LEVER
OIL PRESSURE INDICATOR LIGHT
OVERHEAT INDICATOR LIGHT
14
BUZZER (inside of the box)
IGNITION SWITCH
LANYARD
THROTTLE FRICTION ADJUSTER
FAST IDLE LEVER
IGNITION SWITCH KEY
EMERGENCY STOP SWITCH
SWITCH CLIP
Page 17
CONTROLS AND FEATURES
Fuel Tank (optional equipment)
FUEL TANK
PRIMING BULB
FUEL GAUGE
FUEL HOSE
FUEL HOSE CONNECTOR
(female)
Tachometer
[optional equipment (LHT, LRT
and XRT types)]
VENT KNOB
FUEL FILLER CAP
Trim Meter
[optional equipment (LHT, LRT
and XRT types)]
15
Page 18
CONTROLS AND FEATURES
CONTROLS
LH and LHT Types
(long tiller handle)
Ignition Switch
IGNITION SWITCH
ON
START
OFF
The ignition switch controls the
ignition system and starter motor.
Turning the ignition switch key to the
START position operates the starter
motor. The key automatically returns
to the ON position when released
from the START position.
The ignition switch can be used to
start the engine only when the
gearshift lever is in the N (neutral)
position (p.), and the switch clip
38
is in the emergency stop switch.
Turning the ignition switch to the
OFF position stops the engine.
Emergency Stop Switch and
Switch Clip
EMERGENCY STOP SWITCH
LANYARD
SWITCH CLIP
SWITCH CLIP
LANYARD
16
Page 19
CONTROLS AND FEATURES
The switch clip must be inserted in
the engine stop switch in order for
the engine to start and run. The
lanyard should be attached to the
operator’s PFD (Personal Flotation
Device) or worn around the wrist as
shown.
When used as described, the
emergency stop switch and lanyard
system stops the engine if the
operator falls away from the controls.
A spare switch clip is supplied with
the motor (LH and LHT types).
Throttle Grip
THROTTLE GRIP
THROTTLE INDEX MARK
INCREASE
The throttle grip controls engine
speed.
An index mark on the tiller arm
shows throttle position and is helpf ul
for setting the throttle correctly when
starting (p.).
38
17
Page 20
CONTROLS AND FEATURES
Gearshif t LeverThrottle Friction AdjusterSteering Friction Adjuster
THROTTLE FRICTION
ADJUSTER
FIX
RELEASE
THROTTLE GRIP
The throttle friction adjuster adjusts
resistance to throttle grip rotation.
Turn the adjuster clockwise to
increase friction for holding a throttle
setting while cruising.
Turn the adjuster counterclockwise to
decrease friction for easy throttle grip
rotation.
N (neutral)
F
(forward)
GEARSHIFT
LEVER
R (reverse)
The gearshift lever is used to select F
(forward), N (neutral), or R (reverse)
gears.
The engine can be started with the
gearshift lever in the N (neutral)
position only.
STEERING FRICTION ADJUSTER
LOCK
FREE
The steering friction adjuster adjusts
steering resistance.
Less friction allows the outboard
motor to turn more easily. More
friction helps to hold steady course
while cruising or to prevent the
outboard motor from swinging while
trailering the boat.
18
Page 21
CONTROLS AND FEATURES
Tilt Lever
(gas assist/LH type)
TTIILLTT
RRUUNN ((LLOOCCKK))
TILT LEVER
Moving the tilt lever to the TILT
position allows the motor to be tilted
and moving the tilt lever to the RUN
(LOCK) position locks the motor in
the desired position. Use the tilt lever
to temporarily tilt the motor when the
boat is operating in shallow water, or
mooring in shallow water. The tilt
lever must be in the RUN (LOCK)
position before operating the motor
or the motor could tilt up when
operatinginreverse.
LRT and XRT Types
(remote control/optional
equipment)
For panel mount or top mount remote
control information, refer to the
instructions provided with the remote
control equipment.
Ignition Switch
(side-mount type)
OONN
OOFFFF
IGNITION
SWITCH
EMERGENCY STOP
SWITCH
SWITCH CLIP
SSTTAARRTT
The ignition switch controls the
ignition system and starter motor.
19
Page 22
CONTROLS AND FEATURES
Turning the ignition switch key to the
START position operates the starter
motor. The key automatically returns
to the ON position when released
from the START position.
Emergency Stop Switch and
Switch Clip (side-mount type)
EMERGENCY
STOP SWITCH
The switch clip must be inserted in
the emergency stop switch in order
for the engine to start and run. The
lanyard must be attached to the
operator’s PFD (Personal Flotation
Device) or worn around the wrist as
The ignition switch can be used to
shown.
start the engine only when the
gearshift lever is in the N (neutral)
position (p.), and the switch clip
40
is in the emergency stop switch.
When used as described, the
emergency stop switch and lanyard
system stops the engine if the
operator falls away from the controls.
Turning the ignition switch to the
OFF position stops the engine.A spare switch clip is stored in a slot
LANYARD
SWITCH CLIP
LANYARD
SWITCH CLIP
in the control housing.
20
SPARE SWITCH CLIP
Page 23
CONTROLS AND FEATURES
Fast Idle Lever
(side-mount type)
N (neutral)
GEARSHIFT/THROTTLE
CONTROL LEVER
The fast idle lever is used to set idle
speed during warm-up.
The lever will not move unless the
gearshift/throttle control lever is in
the N (neutral) position. The fast idle
lever must be in it’s lowest position
for you to move the gearshift/throttle
control lever out of neutral.
FAST IDLE
START
FAST IDLE LEVER
Leave the fast idle lever in the
START position to provide a rich
fuel mixture for starting a cold
engine.
Lift the fast idle lever to accelerate
the warm up of a cold engine after
starting and to start a warm engine.
Gearshift/Throttle Control
Lever
The control lever automatically locks
itself in the N (neutral) position. To
move the lever out of the N (neutral)
position, you must squeeze the
neutral release lever on the underside
of the lever handle.
(side-mount type)
GEARSHIFT/THROTTLE
CONTROL LEVER
NEUTRAL
RELEASE
LEVER
21
Page 24
CONTROLS AND FEATURES
The gearshift/throttle control lever
controls engine speed and selects F
(forward), N (neutral), or R (reverse)
gears.
Moving the control lever 30° from N
(neutral) selects the gear, and further
movement increases engine speed.
GEARSHIFT/THROTTLE
CONTROL LEVER
N (neutral)
A friction adjuster near the base of
the control lever adjusts the operating
resistance of the control lever (p.).
48
Less friction allows easier control
lever movement. More friction helps
to hold a steady throttle setting while
cruising.
22
R (reverse)F(forward)
EENNGGIINNEE
SSPPEEEEDD
EENNGGIINNEE
SSPPEEEEDD
HHIIGGHH
HIGH
Page 25
CONTROLS AND FEATURES
Common Controls
Power Trim/Tilt Switch
[LRT and XRT types (sidemount type)]
The power trim/tilt switch is located
on the control lever or the tiller
handle. It is a rocker switch with UP
and DN (down) positions for
changing the angle of the outboard
motor.
You can use the power trim/tilt
switch anytime without turning the
ignition switch is ON, whether the
boat is underway or stopped.
Trim the outboard motor to obtain
the best performance and stability
(p.).
50
Tilt the outboard motor for shallow
water operation, beaching, launching,
or mooring.
The outboard motor can be tilted
manually after opening the manual
relief valve. This allows the outboard
motor to be tilted when no battery is
connected.
24
FFRREEEE
LLOOCCKK
The tilt lock lever is used to support
the outboard motor in the fully-raised
position.
When the boat is to be moored for a
long time, tilt the outboard motor as
far as it will go. Then move the tilt
lock lever to the LOCK position, and
gently lower the outboard motor until
the lever contacts the stern bracket.
UNLATCH
ENGINE COVER LATCH
REAR
FFIIXX
ENGINE COVER LATCH
FFIIXX
UNLATCH
The engine cover latches fasten the
engine cover to the outboard motor.
Page 27
CONTROLS AND FEATURES
Transom Angle Adjusting RodTrim Tab
STERN BRACKET
TTUURRNN UUPP
PPUUSSHH
TRANSOM ANGLE ADJUSTING ROD
The transom angle adjusting rod
limits the tilt angle of the outboard
motor when fully lowered.
Proper adjustment prevents the
outboard motor from being trimmed
too low (p.).
50
TRIM TAB BOLT
PROPELLER
The trim tab compensates for
‘‘torque steer’’, which is a reaction of
TO CHANGE
UNLOCKED POSITION
the outboard motor to propeller
rotation.
If uncompensated, torque steer would
make the outboard motor tend to turn
to one side.
When the trim tab is correctly
adjusted (p.), steering effort is
TO LOCK
LOCKED POSITION
equal in either direction.
TRIM TAB
61
TRANSOM ANGLE ADJUSTING ROD
25
Page 28
CONTROLS AND FEATURES
INSTRUMENTS
Trim Meter
[optional equipment (LHT,
LRT and XRT Types)]
TRIM METER
The trim meter indicates the relative
trim angle of the outboard motor.
Refer to the trim meter when using
the power trim/tilt switch to achieve
proper boat performance.
TachometerFuel Gauge
[optional equipment (LHT,
(optional equipment)
LRT and XRT Types)]
FUEL GAUGE
A fuel gauge is built into the cap of
TACHOMETER
The tachometer shows engine speed
in revolutions per minute.
Refer to the tachometer when using
the throttle and power trim/tilt
controls to achieve the best
performance from the boat.
the portable fuel tank (optional
equipment).
26
Page 29
CONTROLS AND FEATURES
INDICATORS
Oil Pressure Indicator
LH and LHT Types
(GREEN)
LRTandXRTTypes
(side-mount type)
(GREEN)
BUZZER
When the green light is lit, oil
pressure is OK.
If oil pressure becomes low, the
green light will go off, and the
engine protection system will limit
engine speed. Refer to
CARE OF UNEXPECTED
PROBLEMS
Remote controls are also equipped
with a buzzer that sounds
continuously when the green light
goes off.
The buzzer sound stops below an
engine speed of 1,400 rpm.
Low oil pressure indicates that the
engine oil level is low, or that there is
a problem with the engine lubrication
system.
,onp..
TAKING
90
27
Page 30
CONTROLS AND FEATURES
Overheat Indicator
LH and LHT Types
(RED)
LRTandXRTTypes
(side-mount type)
BUZZER
(RED)
If the engine overheats, the red light
will come on, and the engine
protection system will limit engine
speed.
When normal engine temperature is
restored, the engine speed will
gradually rise to normal engine speed.
If the condition persists for another
20 seconds, the engine will shut off.
Refer to
UNEXPECTED PROBLEMS
p..91
Remote controls are also equipped
with a buzzer that sounds when the
red light comes on.
Engine overheating may be the result
of clogged water intakes.
TAKING CARE OF
,on
28
Page 31
CONTROLS AND FEATURES
Cooling System IndicatorOTHER FEATURES
COOLING SYSTEM INDICATOR
Water should flow from the cooling
system indicator while the engine is
running. This shows that water is
circulating through the cooling
system.
If water stops flowing while the
engine is running, that indicates a
cooling system problem, such as
clogged water intakes, which will
cause engine overheating. Refer to
TAKING CARE OF UNEXPECTED
PROBLEMS
,onp..91
The cooling system indicator
discharge port can also become
plugged.
Overrev Limiter
The engine is equipped with an
overrev limiter to prevent the
possibility of mechanical damage
from excessive engine speed.
The overrev limiter may be activated
during operation, limiting engine
speed, if the outboard motor is tilted
excessively, or when propeller
ventilation occurs during a sharp turn.
If the overrev limiter is activated,
check the trim angle of the outboard
motor.
29
Page 32
CONTROLS AND FEATURES
Anodes
ANODE
(stern bracket)
ANODE
(trim tab)
The anodes are made of a sacrificial
material that helps to protect the
outboard motor from corrosion.
There are two anodes on the gear
case, one on the stern bracket, and
another is the trim tab.
Portable Fuel Tank
(optional equipment)
The portable fuel tank has a capacity
ofUS gal () and has a fuel
gauge built into the cap.
256.6
30
Page 33
(optional equipment)
VENT KNOB
CONTROLS AND FEATURES
Fuel Priming BulbFuel Filler Cap Vent Knob
UP
OUTLET END
(MOTOR)
OOPPEENN
FUEL FILLER CAP
The cap is provided with a vent knob
to seal the portable fuel tank for
carrying it to and from the boat.
CCLLOOSSEE
PRIMING BULB
INLET END
(TANK)
A priming bulb is built into the fuel
hose that connects the fuel tank to the
outboard motor.
Open the vent knob 2 or 3 turns
before starting the engine.Before starting the engine, hold the
priming bulb up in the direction of
the arrow, then squeeze the priming
bulb until it feels firm. This will
ensure that fuel is supplied to the
engine.
31
Page 34
BEFORE OPERATION
ARE YOU READY TO GET
UNDER WAY?
Your safety is your responsibility. A
little time spent in preparation will
significantly reduce your risk of
injury.
Knowledge
Read and understand this manual.
Know what the controls do and how
to operate them.
Familiarize yourself with the
outboard motor and its operation
before you get under way. Know
what to do in case of emergencies.
Familiarize yourself with all laws
and regulations relating to boating
and the use of outboard motors.
Safety
Always wear a PFD (Personal
Flotation Device) while on the boat.
Attach the emergency stop switch
lanyard securely to your PFD or to
your wrist.
IS YOUR OUTBOARD
MOTOR READY TO GO?
For your safety, and to maximize the
service life of your equipment, it is
very important to take a few
moments before you operate the
outboard motor to check its condition.
Be sure to take care of any problem
you find, or have your authorized
Honda marine dealer correct it,
before you operate the outboard
motor.
Improperly maintaining
this outboard motor, or
failing to correct a problem
before operation, can cause
a malfunction in which you
could be seriously hurt or
killed.
Always perform a
preoperation inspection
before each operation, and
correct any problem.
Before beginning your preoperation
checks, be sure the ignition switch is
in the OFF position.
32
Page 35
BEFORE OPERATION
Safety InspectionMaintenance Inspection
Look around the outboard motor
for signs of oil or gasoline leaks.
If you are using the portable fuel
tank (optional equipment), make
sure it is in good condition and
properly secured in the boat
(p.).
36
Check that the fuel hose is
undamaged and properly
connected (p.).
Wipe up any spills before starting
the engine.
Check the stern bracket to be sure
the outboard motor is securely
installed.
Check that all controls are
operating properly.
Replace any damaged parts.
36
Check that all fasteners are in
place and securely tightened.
Check the engine oil level (p.).
Running the engine with a low oil
level can cause engine damage.
Check to be sure the propeller is
undamaged, and the castle nut is
secured with the cotter pin (p.).
Check that the anodes are securely
attached to the gear case (p.)
and are not excessively worn. The
anodes help to protect the outboard
motor from corrosion.
Make sure the tool kit (optional
equipment) and emergency starter
rope are onboard (p.). Replace
any missing items.
Check the fuel level in the fuel
tank (p.).
Check that the battery fluid is
between the upper and lower levels,
and the battery leads are connected
securely.
70
58
63
76
75
33
Page 36
OPERATION
SAFE OPERATING
PRECAUTIONS
To safely realize the full potential of
this outboard motor, you need a
complete understanding of its
operation and a certain amount of
practice with its controls.
Before operating the outboard motor
for the first time, please review the
IMPORTANT SAFETY
INFORMATION
chapter titled
For your safety, avoid starting or
operating the engine in an enclosed
area. Your engine’s exhaust contains
poisonous carbon monoxide gas
which can collect rapidly in an
enclosed area and cause illness or
death.
on pageand the
BEFORE OPERATION.
7
BREAK-IN PROCEDURE
Break-in period: 10 hours
Proper break-in operation allows the
moving parts to wear in smoothly for
best performance and long service
life.
First 15 minutes:
Run the engine at trolling speed. Use
the minimum throttle opening
necessary to operate the boat at a safe
trolling speed.
Next 45 minutes:
Run the engine up to a maximum of
2,000 to 3,000 rpm, which is about
10% to 30% of maximum throttle
opening.
Next 60 minutes:
Run the engine up to a maximum of
4,000 to 5,000 rpm, which is about
50% to 80% of maximum throttle
opening.
Short full-throttle bursts are OK, but
do not operate the engine
continuously at full throttle.
For boats that plane easily, bring the
boat up on plane, and then reduce the
throttle opening to the recommended
rpm range.
Next 8 hours:
Do not run the engine at full throttle
for more than 5 minutes at a time.
34
Page 37
OPERATION
TRANSOM ANGLE
ADJUSTMENT
STERN BRACKET
TTUURRNN UUPP
PPUUSSHH
TRANSOM ANGLE ADJUSTING ROD
TRANSOM ANGLE ADJUSTING ROD
TO CHANGE
UNLOCKED
POSITION
The transom angle adjusting rod
limits the tilt angle of the outboard
motor when fully lowered.
Proper adjustment prevents the
outboard motor from being trimmed
too low (p.).
50
To adjust, first tilt the outboard
motor so it is not resting on the rod.
Push the rod in and turn the end of
the rod up, so the latch will fall into
line with the rod.
Remove the rod and reinsert it in the
desired position.
Push the rod in and turn the end of
the rod down, so the latch will fall to
the locked position. Then release the
rod.
Do not allow water to enter the idle
exhaust port or the engine can be
damaged.
Place the portable fuel tank (optional
equipment) in a well-ventilated
location, away from direct sunlight,
to reduce the possibility of a gasoline
vapor explosion.
seriously injured when
handling fuel.
Stop the engine and keep
heat, sparks, and flame
away.
FUEL HOSE CONNECTOR
Handle fuel only
To ensure that the outboard motor
will be able to draw fuel from the
tank, place the tank within 6 feet of
outdoors.
Wipe up spills
immediately.
(OUTBOARD MOTOR SIDE)
the outboard motor and not more
than 3 feet below the fuel connector
on the outboard motor.
Connect the fuel hose to the tank and
the outboard motor, as shown. Be
sure both connectors snap securely
into place.
36
Page 39
OPERATION
FUEL PRIMINGSTARTING THE ENGINE
UP
OUTLET END
(MOTOR)
PRIMING BULB
INLET END
(TANK)
Hold the priming bulb with the outlet
end higher than the inlet end.
Squeeze the priming bulb several
times, until it feels firm, indicating
that fuel has reached the carburetor.
Check to be sure there are no fuel
leaks before starting the engine.
Do not squeeze the priming bulb
when the engine is running because
that could flood the carburetor.
LH and LHT Types
(long tiller handle)
EMERGENCY STOP SWITCH
LANYARD
Put the emergency stop switch clip
1.
in the emergency stop switch, and
attach the lanyard to your PFD
(Personal Flotation Device) or to
your wrist, as shown.
SWITCH CLIP
The engine will not start or run,
unless the clip is in the switch.
The emergency stop switch clip
and lanyard system is a safety
device that will stop the engine if
you fall away from the controls
while operating the boat.
Always attach the lanyard to your
PFD, or to your wrist, before
starting the engine.
37
Page 40
OPERATION
N (neutral)
GEARSHIFT LEVER
Check the position of the gearshift
2.3.4.
lever. It must be in the N (neutral)
position for starting.
Align the engine start symbol
‘‘’’ on the tiller handle with the
pointer ‘‘’’ on the throttle grip.
START
POSITION
POINTER
THROTTLE GRIP
The engine will not start if the
gearshift lever is in the F (forward)
or R (reverse) position.
ON
START
OFF
IGNITION SWITCH KEY
Turn the ignition switch key to the
START position and hold it there
until the engine starts.
When the engine starts, release the
key, allowing it to return to the ON
position.
If the engine fails to start within 5
seconds, release the key and wait
at least 10 seconds before
operating the starter again.
38
Page 41
OPERATION
Using the electric starter f or more
than 5 seconds at a time will
overheat the starter motor and can
damage it.
Turning the ignition switch key to
the START position while the
engine is running can damage the
starter motor and f lywheel.
Also, as the engine warms up, the
throttle grip can be turned to the
SLOW position without stalling.
Before getting under way, allow
5.
the engine to warm up sufficiently
to ensure good performance.
Above 41°F (5°C), warm up the
engine for 2 or 3 minutes.
Below 41°F (5°C), warm up the
engine for at least 10 minutes at
2,000 rpm.
During the warm-up period, check
the oil pressure indicator (p.),
overheat indicator (p.) and
cooling system indicator (p.).
27
28
29
If the indicators show any
abnormal condition, immediately
stop the engine and determine the
cause of the problem. Refer to
TAKING CARE OF
UNEXPECTED PROBLEMS
from p..
90
LRTandXRTTypes
(remote control)
For panel mount or top mount remote
control information, refer to the
instructions provided with the remote
control equipment.
Side-Mount Type
EMERGENCY STOP
SWITCH
SWITCH CLIP
Put the emergency stop switch clip
1.
in the emergency stop switch, and
attach the lanyard to your PFD
(Personal Flotation Device) or to
your wrist, as shown.
LANYARD
39
Page 42
OPERATION
The engine will not start or run,
unless the clip is in the switch.
The emergency stop switch clip
and lanyard system is a safety
device that will stop the engine if
you fall away from the controls
while operating the boat.
Always attach the lanyard to your
PFD, or to your wrist, before
starting the engine.
N (neutral)
CONTROL
LEVER
Set the control lever in the N
2.3.
(neutral) position.
The engine will not start if the F
(forward) or R (reverse) gears are
engaged.
FAST IDLE
START
FAST IDLE LEVER
To start a cold engine, leave the
fast idle lever in the START (fully
lowered) position.
To restart a warm engine, raise the
fast idle lever.
Fast idle lever cannot be raised
unless the control lever is in the N
(neutral) position.
The control lever cannot be moved
away from the N (neutral) position
unless the fast idle lever is lowered.
40
Page 43
OPERATION
ON
OFF
START
Using the electric starter f or more
than 5 seconds at a time will
overheat the starter motor and can
damage it.
Turning the ignition switch key to
the START position while the
engine is running can damage the
starter motor and f lywheel.
IGNITION SWITCH KEY
Turn the ignition switch key to the
4.5.
START position and hold it there
until the engine starts.
When the engine starts, release the
key, allowing it to return to the ON
position.
If the engine fails to start within 5
seconds, release the key and wait
at least 10 seconds before
operating the starter again.
FAST IDLE LEVER
If the fast idle lever was used to
start the engine, gradually lower
the lever as the engine warms up.
When the fast idle lever is fully
lowered, the control lever can be
moved away from the N (neutral)
position.
41
Page 44
OPERATION
Before getting under way, allow
6.
the engine to warm up sufficiently
to ensure good performance.
Above 41°F (5°C), warm up the
engine for 2 or 3 minutes.
Below 41°F (5°C), warm up the
engine for at least 10 minutes at
2,000 rpm.
During the warm-up period, check
the oil pressure indicator (p.),
overheat indicator (p.), and
28
cooling system indicator (p.).
If the indicators show any
abnormal condition, immediately
stop the engine and determine the
cause of the problem. Refer to
TAKING CARE OF
UNEXPECTED PROBLEMS
from p..
90
EMERGENCY STARTING
If the battery is discharged, or the
starter motor is inoperative, you can
start the engine manually using the
emergency starter rope supplied with
the motor.
(REAR)(FRONT)
27
292.
Unlatch and remove the engine
1.
UUNNLLOOCCKK UUNNLLOOCCKK
ENGINE COVER LATCHES
cover.Turn the ignition switch key to the
WASHERS
3.
×
625mm
BOLTS
WASHERS
FLYWHEEL COVER
Remove the flywheel cover by
unscrewing the four cover bolts.
Set the controls the same as for
normal starting (see pages
). Use the fast idle control if
40
37
needed.
ON position.
−
42
Page 45
FLYWHEEL
EMERGENCY
STARTER
ROPE
KNOT
Set the knotted end of the
emergency starter rope in the notch
in the flywheel. Wind the rope
counterclockwise around the
flywheel, as shown.
Pull the emergency starter rope
5.4.
slowly until resistance is felt, then
pull briskly.
Keep away from moving parts
while pulling the rope.
If necessary, rewind the rope and
pull again. If the engine does not
start after several attempts, refer to
TAKING CARE OF
UNEXPECTED PROBLEMS
from p..
84
OPERATION
If the fast idle control(s) was used
6.
to start the engine, return the
control(s) to the normal operating
position as the engine warms up.
During the warm-up period, check
the oil pressure indicator (p.),
overheat indicator (p.), and
cooling system indicator (p.).
Leave the flywheel cover off, but
7.
install the engine cover (p.),
and lock it in place by latching the
engine cover latch.
Exposed moving parts can
cause injury.
Do not operate the
outboard motor without
the engine cover.
Use extreme care when
installing the engine
cover.
28
62
27
29
43
Page 46
OPERATION
If it was necessary to remove the
8.
emergency stop switch lanyard
from your wrist to perform the
emergency starting procedure, be
sure the lanyard is attached to your
wrist before operating the
outboard motor.
Have your closest authorized
9.
Honda marine dealer check your
electrical system and correct the
problem, so you can use the
electric starter.
44
Page 47
OPERATION
STOPPING THE ENGINE
Emergency Engine Stopping
LH and LHT Types
(long tiller handle)
PPUULLLL
LANYARD
EMERGENCY
STOP SWITCH
SWITCH CLIP
LRTandXRTTypes
(remote control)
EMERGENCY
STOP SWITCH
LANYARD
PULL
SWITCH CLIP
To stop the engine in an emergency,
pull the clip out of the emergency
stop switch by pulling the lanyard.
We suggest that you stop the engine
this way occasionally to verify that
the emergency stop switch is
operating properly.
Turn the ignition switch key to the
OFF position after verifying the
emergency stop switch operation.
Normal Engine Stopping
LH and LHT Types
(long tiller handle)
SLOW
THROTTLE GRIP
N (neutral)
GEARSHIFT LEVER
LRTandXRTTypes
[remote control
(side-mount type)]
CONTROL
LEVER
Move the throttle grip to the
1.
slowest speed and gearshift lever
or control lever to N (neutral)
position.
45
Page 48
OPERATION
LH and LHT Types
(long tiller handle)
OFF
IGNITION SWITCH KEY
LRTandXRTTypes
(remote control)
OOFFFF
IGNITION
SWITCH KEY
Turn the ignition switch key to the
2.
OFF position to stop the engine.
When the boat is not in use,
3.
remove and store the ignition key
andtheemergencystopswitchclip
and lanyard.
46
Page 49
OPERATION
GEARSHIFTING AND
THROTTLE OPERATION
LH and LHT Types
(long tiller handle)
POINTER
THROTTLE
GRIP
SLOW
FAST
GEARSHIFT
LEVER
F
(forward)
N
(neutral)
R
(reverse)
To shift gears, turn the throttle grip to
the SLOW position, then move the
gearshift lever to select F (forward),
N (neutral) or R (reverse) gears.
The engine can be started with the
gearshift lever in the N (neutral)
position only.
The throttle grip can be turned to the
FAST position only when the
gearshift lever is in the F (forward)
position.
THROTTLE FRICTION ADJUSTER
THROTTLE
GRIP
FIX
RELEASE
Use the throttle friction adjuster to
help hold a constant throttle setting
while cruising.
Turn the adjuster clockwise to
increase throttle grip friction for
holding a constant speed.
Turn the adjuster counterclockwise to
decrease friction for easy grip
rotation.
47
Page 50
OPERATION
LRTandXRTTypes
(remote control)
Side-Mount Type
CONTROL
LEVER
NEUTRAL
RELEASE LEVER
To shift gears, move the control lever
to select F (forward), N (neutral) and
R (reverse) gears.
The control lever cannot be moved
from the N (neutral) position unless
the neutral release lever is squeezed.
Moving the control lever beyond the
gear selection range increases engine
speed.
TO INCREASE
FRICTION
THROTTLE
FRICTION
ADJUSTER
TO DECREASE
FRICTION
Adjust the throttle friction adjuster so
the control lever will hold a constant
throttle setting while cruising.
48
Page 51
OPERATION
STEERING
LH and LHT Types
(long tiller handle)
Steer by moving the tiller handle
opposite the direction you want the
boat to turn.
Use the steering friction adjuster to
help hold a steady course while
cruising.
Move the adjuster to the LOCK
direction to increase steering friction
for holding a steady course.
Move the adjuster to the FREE
direction to decrease friction for easy
turning.
Do not apply grease or oil on the
f riction plate. Grease or oil will
reduce the friction of the adjuster.
(remote control)
Steer the boat in the same manner as
an automobile.
49
Page 52
OPERATION
CRUISING
Engine Speed
For best fuel economy, limit the
throttle opening to 80%. Use the
throttle friction control (p.and
) to help you hold a steady speed.
48
For rough water conditions or large
waves, slow down to prevent the
propeller from rising out of the water.
The engine is equipped with an
overrev limiter to prevent the
possibility of mechanical damage
from excessive engine speed.
If, for example, the outboard motor
is tilted excessively, or propeller
ventilation occurs during a sharp turn,
the engine may overrev, activating
the overrev limiter.
47
If engine speed becomes unstable at
high speed due to activation of the
overrev limiter, reduce speed and
check the trim angle of the outboard
motor.
Trim
LH Type
Install the outboard motor at the best
trim angle for stable cruising and
maximum power.
Trim angle too large: Incorrect
causes boat to ‘‘squat’’.
Trim angle too small: Incorrect
causes boat to ‘‘bow steer’’.
It is necessary to trim the angle of the
outboard motor to compensate for
changes in boat load, weight
distribution, water conditions, or
propeller selection.
Under normal conditions, the boat
will perform best when the
antiventilation plate is level with the
water surface.
When cruising into a high wind, trim
the outboard motor down slightly to
level the boat and improve stability.
With a tail wind, trim the outboard
motor up slightly.
LHT, LRT and XRT Types
Use the power trim/tilt switch to trim
the outboard motor for the best
performance and stability.
You can use the power trim/tilt
switch at any time, whether the boat
is under way or stopped.
Press the UP or DN (down) side of
the switch to adjust the angle of the
outboard motor.
Refer to the trim meter (p.) for an
indication of whether the motor is
trimmed high or low.
26
50
Page 53
OPERATION
It is necessary to trim the angle of the
outboard motor to compensate for
changes in boat load, weight
distribution, water conditions, or
propeller selection.
Under normal conditions, the boat
will perform best when the
antiventilation plate is level with the
water surface.
When cruising into a high wind,
adjust the outboard motor down
slightly to level the boat and improve
stability. With a tail wind, adjust the
outboard motor up slightly.
Excessive trim/tilt angle during
operation can cause propeller
ventilation, overheating, and water
pump damage. This type of damage
is not covered by the
If steering effort is not equal in both
directions, adjust the trim tab to
compensate for ‘‘torque steer’’,
which is the reaction of the outboard
motor to propeller rotation.
TRIM TAB BOLT
TRIM TAB
PROPELLER
Adjust the trim tab with the engine
stopped. Loosen the bolt above the
trim tab, turn the trim tab, then
tighten the bolt securely.
When the trim tab is correctly
adjusted, steering effort will be equal
in both directions.
SHALLOW WATER
OPERATION
LHT, LRT and XRT Types
When operating in shallow water, use
the power trim/tilt switch (p.) to
tilt the outboard motor, so the
propeller and gear case won’t hit the
bottom.
Proceed at low speed, and monitor
water flow from the cooling system
indicator (p.) to be sure the
29
outboard motor is not tilted so high
that the water intakes are out of the
water.
An excessive trim/tilt angle during
operation can cause propeller
ventilation, overheating, and water
pump damage. This type of damage
is not covered by the
Limited Warranty
Distributor’s
(p.).106
51
LH Type
When operating in shallow water, tilt
the outboard motor, using the tilt
lever, so the propeller and gear case
won’t hit the bottom.
67°
TILT ANGLE
16°
0°
TRIM ANGLE
52
Page 55
OPERATION
ENGINE COVER GRIP
TTIILLTT
RRUUNN
((LLOOCCKK))
TILT LEVER
To tilt the outboard motor, move the
tilt lever to the TILT position, then
raise the outboard motor to the
desired position by pulling on the
engine cover grip.
Do not use the tiller handle as a
lever to raise the outboard motor.
Applying excessive f orce to the tiller
handle can damage it.
While the outboard motor is tilted,
proceed at a low speed, and do not
operate the outboard motor in reverse.
The outboard motor will rise
suddenly if operated in reverse.
Monitor water flow from the cooling
system indicator (p.) to be sure
29
the outboard motor is not tilted so
high the water intake is out of the
water.
An excessive tilt angle during
operation can cause propeller
ventilation, overheating, and water
pump damage. This type of damage
is not covered by the
Limited Warranty
Distributor’s
(p.).106
To return the outboard motor to the
normal operating position, move the
tilt lever to the RUN (LOCK)
position, you may need to raise the
outboard motor slightly to disengage
the tilt mechanism, then slowly lower
the outboard motor.
53
Page 56
OPERATION
MOORING, BEACHING,
LAUNCHING
LH Type
Use the tilt lever to raise and lower
the outboard motor as described on
p..
53
LHT, LRT and XRT Types
To raise the outboard motor out of
the water while the engine is stopped
and the boat is moored, or for
maximum clearance when beaching
or launching, use the power tilt
switch on the engine pan to tilt the
outboard motor as far as it will go,
move the tilt lock lever to the LOCK
position, then gently lower the
outboard motor until the lever
contacts the stern bracket.
If more clearance is needed to swing
the tilt lock lever into the LOCK
position, rock the outboard motor
forward slightly by pulling on the
engine cover grip.
To lower the outboard motor, tilt up,
move the tilt lock lever to the FREE
position, then lower the outboard
motor to the desired position.
POWER TILT SWITCH
TILT LOCK LEVER
(lock position)
FFRREEEE
LLOOCCKK
Do not attempt to use the power tilt
switch to tilt the outboard motor
down while the tilt lock lever is in the
lock position. Damage to the power
tilt system may occur.
54
Page 57
OPERATION
RIGHT STERN BRACKET
MANUAL RELIEF
VALVE
PPOOWWEERR
((TToo ffiixx))
MMAANNUUAALL
((TToo rreelleeaassee))
The outboard motor can also be tilted
manually after opening the manual
relief valve. This feature enables the
outboard motor to be tilted when no
battery is connected.
For manual tilting, use a flat blade
screwdriver to turn the valve
counterclockwise 2 and a half turns.
Close the valve firmly after
positioning the engine.
Be sure the valve is closed before
operating the outboard motor. If the
valve is not closed, the outboard
motor will tilt up when operated in
reverse.
55
Page 58
SERVICING YOUR OUTBOARD MOTOR
THE IMPORTANCE OF
MAINTENANCE
Good maintenance is essential for
safe, economical, and trouble-free
operation. It will also help reduce air
pollution.
Improperly maintaining
this outboard motor, or
failure to correct a problem
before operation, can cause
a malfunction in which you
could be seriously hurt or
killed.
Always follow the
inspection and
maintenance
recommendations and
schedules in this owner’s
manual.
To help you properly care for your
outboard motor, the following pages
include a maintenance schedule,
routine inspection procedures, and
simple maintenance procedures using
basic hand tools. Other service tasks
that are more difficult, or require
special tools, are best handled by
professionals and are normally
performed by a Honda technician or
other qualified mechanic.
The maintenance schedule applies to
normal operating conditions. If you
operate your outboard motor under
unusual conditions, consult an
authorized Honda marine dealer for
recommendations applicable to your
individual needs and use.
Remember that your authorized
Honda marine dealer knows your
outboard motor best and is fully
equipped to maintain and repair it.
To ensure the best quality and
reliability, use only new, genuine
Honda parts or their equivalents for
repair and replacement.
Maintenance, replacement, or
repair of the emission control
devices and systems may be
performed by any marine engine
repair establishment or individual,
using parts that are ‘‘certified’’ to
EPA standards.
56
Page 59
SERVICING YOUR OUTBOARD MOTOR
MAINTENANCE SAFETYSafety Precautions
Some of the most important safety
precautions follow. However, we
cannot warn you of every
conceivable hazard that can arise in
performing maintenance. Only you
can decide whether or not you should
perform a given task.
Failure to properly follow
maintenance instructions
and precautions can cause
you to be seriously hurt or
killed.
Always follow the
procedures and
precautions in the owner’s
manual.
Make sure the engine is off before
you begin any maintenance or
repairs. This will eliminate several
potential hazards:
−
Carbon monoxide poisoning
from engine exhaust.
Be sure there is adequate
ventilation whenever you
operate the engine.
−
Burns from hot parts.
system cool before touching.
−
Injury from moving parts.
Do not run the engine unless
instructed to do so.
Read the instructions before you
begin, and make sure you have the
tools and skills required.
To reduce the possibility of fire or
explosion, be careful when
working around gasoline. Use only
a nonflammable solvent, not
gasoline, to clean parts. Keep
cigarettes, sparks, and flames away
from all fuel-related parts.
Wear gloves when handling the
propeller to protect your hands
from sharp edges.Let the engine and exhaust
57
Page 60
SERVICING YOUR OUTBOARD MOTOR
TOOL KIT (optional equipment)SPARE EMERGENCY STOP
SWITCH CLIP (LH and LHT
Types) AND EMERGENCY
STARTER ROPE
×
1012 mm WRENCH
OIL CHECK SCREWDRIVER
SPARE EMERGENCY STOP SWITCH
CLIP (LH and LHT Types)
FLAT SCREWDRIVER
PLIERS
18 19 mm SOCKET WRENCH
×
EMERGENCY STARTER ROPE
Always carry the spare emergency
stop switch clip and the emergency
starter rope onboard. The spare clip
may either be stored in the optional
tool bag or in an easily accessible
location on the boat along with the
emergency starter rope.
58
PHILLIPS SCREWDRIVER
SCREWDRIVER HANDLE
8 mm WRENCH
TOOL BAG
Individual items in the tool kit shown above can be purchased from an
authorized Honda marine dealer and may be used for simple maintenance
procedures and/or emergency repairs. Keep this tool kit or an equivalent
onboard, so they will always be available if you need them.
If your tool kit needs replacement, it is not available as a kit and each item
must be ordered individually.
Page 61
SERVICING YOUR OUTBOARD MOTOR
MAINTENANCE SCHEDULE
Follow the MAINTENANCE SCHEDULE table and service your outboard motor accordingly. Please note, a claim for
warranty coverage will not be denied simply because the maintenance schedule for your outboard was not followed.
However, any part(s) that fails specifically due to lack of maintenance, or improperly performed maintenance, would
not be covered under the.
Distributor’s Limited Warranty
REGULAR SERVICE PERIOD
Perform at every indicated month or operating
hour interval, whichever comes first.
ITEM
Engine oil
Gear case oil
Engine oil filter
Timing belt
Carburetor linkage
Idle speed
Valve clearance
Spark plug
Propeller and Cotter pin
Anode
Lubrication
Fuel tank and tank filter
Lubricate more frequently when used in salt water.
(1)
These items should be serviced by an authorized Honda marine dealer, unless you have the proper tools and are mechanically proficient.
Refer to the Honda shop manual for service procedures.
For professional/commercial use, log hours of operation to determine proper maintenance intervals.
(3)
When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.
(4)
Every 2 years
or
400 hrs.
○
60
Page 63
SERVICING YOUR OUTBOARD MOTOR
TRIM TAB ADJUSTMENT
The trim tab compensates for
‘‘torque steer’’ which is a reaction of
the outboard motor to propeller
rotation.
TRIM TAB
If uncompensated, torque steer would
make the outboard motor tend to turn
to one side.
When the trim tab is correctly
adjusted, steering effort is equal in
either direction.
If steering effort is unequal, loosen
the trim tab bolt and adjust the angle
of the trim tab. Retighten the trim tab
bolt securely.If less effort is required to make left
turns, move the back of the trim tab
left.
LEFT
TRIM TAB BOLT
TRIM TAB
RIGHT
TRIM TAB BOLT
If less ef fort is required to make right
turns, move the back of the trim tab
right.
Adjust the trim tab in small
increments, and retest steering effort
with the boat evenly loaded and
running at cruising speed.
61
Page 64
SERVICING YOUR OUTBOARD MOTOR
MANUAL RELIEF VALVE
LHT, LRT and XRT Types
RIGHT STERN BRACKET
MANUAL
RELIEF VALVE
MMAANNUUAALL
((TToo rreelleeaassee))
PPOOWWEERR
((TToo ffiixx))
The outboard motor can be tilted
manually after opening the manual
relief valve. This feature enables the
outboard motor to be tilted when no
battery is connected.
For manual tilting, use a flat blade
screwdriver to turn the valve
counterclockwise 2 and a half turns.
Close the valve firmly after
positioning the engine.
Be sure the valve is closed before
operating the outboard motor. If the
valve is not closed, the outboard
motor will tilt up when operated in
reverse.
ENGINE COVER REMOVAL
AND INSTALLATION
(FRONT)
ENGINE COVER
LATCH
UUNNLLAATTCCHH
FFIIXX
(REAR)
FFIIXX
UNLATCH
ENGINE COVER LATCH
The engine cover latches fasten the
engine cover to the outboard motor.
To remove the engine cover, unlatch
both front and rear latches, then lift
the engine cover off the outboard
motor.
To install the engine cover, place the
cover on the outboard motor, then
latch both front and rear latches
securely.
62
Page 65
Engine Oil Level Check
Check the engine oil level with the
engine stopped and the outboard
motor in the vertical position.
Unlatch and remove the engine
1.
cover (p.).
Remove the dipstick and wipe it
2.
clean.
OIL LEVEL DIPSTICK
62
UPPER
LIMIT
LOWER
LIMIT
SERVICING YOUR OUTBOARD MOTOR
OIL FILLER CAP
If the oil level is low, remove the
4.
oil filler cap, and add oil to reach
the upper limit mark shown on the
dipstick. Use the oil recommended
on p..
66
Running the engine with a low oil
level can cause engine damage.
Install the oil filler cap and tighten
5.
it securely.
Install and lock the engine cover.
6.
Insert the dipstick all the way in,
3.
then remove it and check the oil
level shown on the dipstick.
63
Page 66
SERVICING YOUR OUTBOARD MOTOR
Engine Oil Change
An engine oil evacuation device may
be used to remove the engine oil.
Drain the used oil while the engine is
warm. Warm oil drains quickly and
completely.
Unlatch and remove the engine
1.
cover (p.). Remove the oil
62
filler cap.
DRAIN PLUG COVER
SCREW
DRAIN PLUG COVER
(oil drain guide)
64
Loosen the drain plug cover screw
2.3.
using a flat blade screwdriver and
remove the drain plug cover.
Place the drain plug cover as
shown to use it as an oil drain
guide. Place a suitable container
under the guide.
Page 67
SEALING WASHER
DRAIN
BOLT
SERVICING YOUR OUTBOARD MOTOR
Improper disposal of engine oil
can be harmful to the environment.
If you change your own oil, please
dispose of the used oil properly.
Put it in a sealed container, and
take it to a recycling center. Do
not discard it in a trash bin, dump
it on the ground or pour it down a
drain.
With the outboard motor in a
7.
vertical position, fill to the upper
limit mark on the dipstick (p.)
with the recommended oil.
Engine oil refill capacity:
Without oil filter change:
2.1 US qt (2.0 )
With oil filter change:
2.1 US qt (2.0
Install the oil filler cap and tighten
8.
)
it securely.
63
Remove the engine oil drain bolt
and washer.
Allow the used oil to drain
5.
completely, then install a new
sealing washer on the engine oil
drain bolt, and tighten it securely.
Reinstall the drain plug cover.
6.
9.
Install and lock the engine cover.4.
65
Page 68
SERVICING YOUR OUTBOARD MOTOR
Engine Oil Recommendations
Oil is a major factor affecting
performance and service life. Use
4-stroke automotive detergent oil.
SAE Viscosity Grade
AMBIENT TEMPERATURE
SAE 5W-30 is recommended for
general use.
The SAE oil viscosity and service
classification are in the API label on
the oil container. Honda recommends
that you use API SERVICE category
SG, SH, SJ or SL oil with the
‘‘starburst’’ certification mark
displayed on the container.
66
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SERVICING YOUR OUTBOARD MOTOR
Lubrication Points
Apply marine anticorrosion grease to the following parts:
Lubrication interval:
After the first 20 hours or 1 month, then every 100 hours
or 6 months. (Refer to the maintenance schedule page
).
59
To prevent corrosion, apply anticorrosion oil to pivot
surf aces where grease cannot penetrate.
TILT SHAFTTILLER HANDLE
MOUNT FRAME
PROPELLER SHAFT
SWIVEL CASE
Apply Honda Marine Corrosion Inhibitor (or equivalent) to all areas under the engine cover and any exposed metal
surfaces except the belts.
67
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SERVICING YOUR OUTBOARD MOTOR
Spark Plug Service
RECOMMENDED SPARK PLUGS:
DR7EA (NGK)
X22ESR-U (DENSO)
Incorrect spark plugs can cause
engine damage.
Unlatch and remove the engine
1.
cover (p.).
Disconnect the spark plug caps
2.
from the spark plugs.
Remove the spark plugs with a
3.
sparkplugwrench.
62
SPARK PLUG
WRENCH
SPARK PLUG CAPS
Inspect the spark plugs. Replace
4.5.
them if the electrodes are worn, or
if the insulators are cracked or
chipped.
SIDE ELECTRODE
−
0.0240.028 in
−
(0.600.70 mm)
SEALING WASHER
Measure the spark plug electrode
gap with a wire-type feeler gauge.
Correct the gap, if necessary, by
carefully bending the side
electrode.
The gap should be:
0.0240.028 in
−
(0.600.70 mm)
−
68
Page 71
Install the spark plugs carefully,
6.
by hand, to avoid cross-threading.
SERVICING YOUR OUTBOARD MOTOR
After each spark plug seats, tighten
7.
with a spark plug wrench to
compress the sealing washer.
If reinstalling used spark plugs,
tighten 1/81/4 turn after the
spark plugs seat.
If installing new spark plugs,
tighten 1/2 turn after the spark
plugs seat.
Loose spark plugs can overheat
and damage the engine.
Overtightening the spark plugs
can damage the threads in the
cylinder head.
8.
Attach the spark plug caps.
9.
Install and lock the engine cover.
−
69
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SERVICING YOUR OUTBOARD MOTOR
REFUELING
Portable Fuel Tank
(optional equipment)
FUEL TANK CAPACITY:
6.6 US gal (25 )
Check the fuel gauge and refill the
tank when necessary.
Remove the fuel tank from the boat
for refueling.
VENT KNOB
CCLLOOSSEE
OOPPEENN
FUEL FILLER CAP
To refuel, turn the vent knob
counterclockwise to the OPEN
position, and unscrew the fuel filler
cap.
FUEL GAUGE
SAFE FILL LEVEL
Refuel in a well-ventilated area. Fill
the tank to the SAFE FILL LEVEL
line.
After refueling, install the cap and
tighten it securely. Turn the vent
knob clockwise to the CLOSED
position, and return the fuel tank to
the boat.
Gasoline is highly
flammable and explosive.
You can be burned or
seriously injured when
handling fuel.
Stop the engine and keep
heat, sparks, and flame
away.
Handle fuel only
outdoors.
Wipe up spills
immediately.
Never refill the fuel tank inside a
building where gasoline fumes may
reach flames or sparks. Keep
gasoline away from appliance pilot
lights, barbecues, electric appliances,
power tools, etc.
Spilled fuel is not only a fire hazard,
it causes environmental damage.
Wipe up spills immediately.
70
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FUEL RECOMMENDATIONS
SERVICING YOUR OUTBOARD MOTOR
Use unleaded gasoline with a pump
octane rating of 86 or higher.
Your outboard motor is certified to
operate on unleaded gasoline.
Unleaded gasoline produces fewer
engine and spark plug deposits and
extends exhaust system life.
Never use stale or contaminated
gasoline or an oil/gasoline mixture.
Avoid getting dirt or water in the fuel
tank.
Occasionally you may hear a light
‘‘spark knock’’ or ‘‘pinging’’
(metallic rapping noise) while
operating under heavy loads. This is
no cause for concern.
If spark knock or pinging occurs at a
steady engine speed, under normal
load, change brands of gasoline. If
spark knock or pinging persists, see
an authorized Honda marine dealer.
Running the engine with persistent
spark knock or pinging can cause
engine damage.
Running the engine with persistent
spark knock or pinging is misuse,
and the
Warranty
parts damaged by misuse.
For information regarding
oxygenated fuels, please refer to
page.
Distributor’s Limited
(p.) does not cover
106
96
71
Page 74
SERVICING YOUR OUTBOARD MOTOR
Fuel Filter Inspection and
Replacement
Gasoline is highly
The fuel filter is located under the
engine cover between the fuel
coupling and the fuel pump.
Water or sediment accumulated in
the filter can cause loss of power or
hard starting. To prevent engine
malfunction, inspect the filter and
replace when necessary.
flammable and explosive.
You can be burned or
seriously injured when
handling fuel.
Stop the engine and keep
heat, sparks, and flame
away.
Handle fuel only
outdoors.
Wipe up spills
immediately.
PPUULLLL
PUSH
FUEL HOSE CONNECTOR
Remove the engine cover (p.)
1.62
and disconnect the fuel hose
connector from the outboard motor.
72
Page 75
SPRING
RETAINER
FUEL FILTER
SERVICING YOUR OUTBOARD MOTOR
HOSE CLAMP GRIPPERS
(commercially available)
FUEL HOSE CLIPS
FUEL HOSES
Place clamps on the fuel hoses on
4.
each side of the filter to prevent
fuel leakage when the fuel hoses
are disconnected.
FUEL PUMP
FUEL
HOSE
CLIPS
Pull the spring retainer toward you,
2.3.
and raise the fuel filter.
Inspect the filter for water and/or
sediment accumulation.
If the filter is OK, reinstall it. If
water and/or sediment are present,
replace the filter as described in
the following steps. Always
replace the filter at the scheduled
replacement interval (p.).
ARROW
(fuel flow direction)
FUEL FILTER
5.60Install the new fuel filter so the
arrow on the filter points toward
the fuel pump.
Fuel flow will be reduced if the
fuel filter is installed backward.
73
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SERVICING YOUR OUTBOARD MOTOR
6.
Connect the fuel hoses to the fuel
filter securely with the hose clips.
Remove the fuel hose clamps used
to close the fuel hoses.
Securely connect the fuel hose
7.
connector to the outboard motor
(refer to page).
Prime the engine using the priming
8.
bulb (p.). Check for fuel leaks.
Repair any fuel leaks if necessary.
If loss of power or hard starting are
found to be caused by excessive
water or sediment accumulation in
the fuel filter, inspect the fuel tank.
Clean the fuel tank and tank filter if
necessary. It may be necessary to
drain the fuel tank completely and
refill with fresh gasoline.
36
37
Portable Fuel Tank and Filter
Cleaning
(optional equipment)
Gasoline is highly
flammable and explosive.
You can be burned or
seriously injured when
handling fuel.
Stop the engine and keep
heat, sparks, and flame
away.
Handle fuel only
outdoors.
Wipe up spills
immediately.
Fuel Tank
FUEL HOSE
Empty the portable fuel tank into an
approved gasoline container. Use a
funnel to avoid spilling fuel. Rinse
the fuel tank with nonflammable
solvent to remove any accumulated
sediment.
74
Page 77
SERVICING YOUR OUTBOARD MOTOR
Fuel Tank Filter
TANK FILTER JOINT
(Fuel Hose Connector)
O-RING
FUEL TANK
FILLER
Unscrew the fuel hose connector
1.
by turning it counterclockwise,
then remove the fuel hose
connector and fuel tank filter from
the tank.
Clean the filter in nonflammable
2.
solvent. Inspect the fuel tank filter
and the connector O-ring. Replace
them if damaged.
Reinstall the filter and hose
3.
connector in the fuel tank. Tighten
the hose connector securely.
Anode Replacement
ANODE
(stern bracket)
ANODE
(trim tab)
One anode is located on the stern
bracket and the other anode is the
trim tab. They are made of a
sacrificial material that helps to
protect the outboard motor from
corrosion.
Replace the anodes when they have
been reduced to about half their
original size, or if they are crumbling.
Painting or coating the anodes will
def eat their purpose and will lead to
rust and corrosion damage to the
outboard motor. The anodes must be
exposed to the water in order to
protect the outboard motor.
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SERVICING YOUR OUTBOARD MOTOR
Propeller Replacement
Before replacing the propeller,
remove the clip from the emergency
stop switch to prevent any possibility
of the engine being started while you
are working with the propeller.
The propeller blades may have sharp
edges, so wear heavy gloves to
protect your hands.
Operating the outboard motor at
higher altitudes will reduce available
power. This may require decreasing
the propeller pitch to maintain correct
engine RPM.
RemovalInstallation
Remove the cotter pin, unscrew the
castle nut, remove the washers, then
remove the propeller and thrust
washer.
MARINE GREASE
SPECIAL SPLINE WASHER
THRUST WASHER
PROPELLER
Install the propeller in the reverse
order of removal.
Install the thrust washer with the
grooved side toward the gear case.
Use a genuine Honda stainless
steel cotter pin or equivalent cotter
pin and bend the pin ends as
shown.
PLAIN WASHER
CASTLE NUT
COTTER PIN
(stainless)
COTTER PIN
(stainless)
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STORAGE
STORAGE PREPARATION
Proper storage preparation is
essential for keeping your outboard
motor trouble-free and looking good.
The following steps will help to keep
rust and corrosion from impairing
your outboard motor’s function and
appearance, and will make the engine
easier to start when you use the
outboard motor again.
Cleaning and Flushing
Thoroughly clean and flush the
outboard motor with f resh water after
operation in dirty water or salt water.
Touch up any damaged paint, and
coat areas that may rust with Honda
Corrosion Inhibitor, or equivalent.
Lubricate controls with a silicone
spray lubricant.
Cleaning
Wash the outside of the outboard
motor with clean, fresh water, and
flush the cooling system as described.
Flushing With the Honda
Garden Hose Adapter (optional
equipment)
It is necessary to run the engine
during the flushing procedure. For
safety, remove the propeller from the
outboard motor (p.).
WASH PLUG
(flush plug)
Remove the wash plug and sealing
1.
washer from the WASH plug hole
in the gear case. Be sure not to
remove the oil level plug from the
OIL LEVEL plug hole in the gear
case.
76
GARDEN HOSE ADAPTER
(FLUSH KIT COUPLER)
Remove the sealing washer from
2.
the wash plug and install the
sealing washer on the flush kit
coupler.
Install the flush kit coupler into the
3.
WASH plug hole and connect a
fresh water hose to the garden
hose adapter.
77
Page 80
STORAGE
Move the gearshift lever or control
4.
lever to the N (neutral) position.
Flush the outboard motor in the
neutral position only.
Turn on the fresh water supply to
5.
the flush kit coupler.
Running the engine without good
water circulation can cause
overheating and water pump damage.
Damage caused by running the
outboard motor without sufficient
cooling water is not covered by the
Distributor’s Limited Warranty
(p.).
106
COOLING SYSTEM INDICATOR
Start the engine. Monitor the
6.
cooling system indicator. Stop the
engine if water does not come out
of the cooling system indicator and
check the fresh water supply.
If the fresh water supply is
insufficient it may be necessary
to temporarily cover the three
water intakes with duct tape as
shown on the following page.
WATER INTAKES
78
WATER INTAKES
Page 81
STORAGE
Allow the engine to run at idle for
7.
at least 5 minutes to clean the
inside of the motor.
Stop the motor and remove the
8.
garden hose adapter.
Remove the sealing washer from
9.
the garden hose adapter and install
the sealing washer on the wash
plug.
If tape was used to cover the three
water intakes in step 6, remove the
tape now.
Install the wash plug into the gear
10.
case securely.
Fuel
Depending on the region where you
operate your outboard, fuel
f ormulations may deteriorate and
oxidize rapidly. Fuel deterioration
and oxidation can occur in as little
as 15 days and may cause damage to
the carburetors and fuel system.
Please check with your servicing
dealer f or local storage
recommendations.
Gasoline will oxidize and deteriorate
in storage. Old gasoline will cause
hard starting, and it leaves gum
deposits that clog the fuel system. If
the gasoline in your fuel tank and
carburetor deteriorates during storage,
you may need to have the carburetor
and other fuel system components
serviced or replaced.
The length of time that gasoline can
be left in your fuel tank and
carburetor without causing functional
problems will vary with such factors
as gasoline blend, your storage
temperatures, and whether the fuel
tank is partially or completely filled.
The air in a partially filled fuel tank
promotes fuel deterioration. Very
warm storage temperatures accelerate
fuel deterioration. Fuel deterioration
problems may occur in less than 30
days, if the gasoline was not fresh
when you filled the fuel tank.
79
Page 82
STORAGE
Adding a Fuel Stabilizer
When adding a fuel stabilizer, fill the
fuel tank with fresh gasoline. If only
partially filled, air in the tank will
promote fuel deterioration during
storage. If you keep an additional
container of gasoline for refueling,
be sure that it contains only fresh
gasoline.
Add fuel stabilizer following the
1.
manufacturer’s instructions.
After adding a fuel stabilizer, run
2.
the engine in water for 10 minutes
to be sure that the treated gasoline
has replaced the untreated gasoline
in the carburetor.
Turn the engine OFF.
3.
Distributor’s Limited Warranty
The
(p.) does not cover fuel system
106
damage or engine performance
problems resulting from neglected
storage preparation.
Draining the Fuel System
You can avoid fuel deterioration
problems by draining the fuel tank
and carburetors.
Disconnect the fuel hose from the
1.
outboard motor.
DRAIN SCREW
With the outboard motor in a
2.
vertical position, place an
approved gasoline container below
the fuel drain outlet, and use a
funnel to avoid spilling fuel.
Gasoline is highly
flammable and explosive.
You can be burned or
seriously injured when
handling fuel.
Stop the engine and keep
heat, sparks, and flame
away.
Handle fuel only
outdoors.
Wipe up spills
immediately.
80
Page 83
STORAGE
#
1 CARBURETOR
DRAIN SCREW
#
2 CARBURETOR
DRAIN SCREW
DRAIN
TUBE
#
3 CARBURETOR
DRAIN SCREW
Loosen the drain screw on1
3.
#
carburetor, allow the carburetor to
drain completely, then tighten the
drain screw securely.
Remove the drain tube from1
4.
carburetor, install it on2
#
carburetor, and drain that
carburetor in the same manner.
#
Repeat this procedure to drain3
5.
carburetor.
After all three carburetors are
6.
drained, reinstall the drain tube on
#
1 carburetor.
Drain the fuel tank into an
7.
approved gasoline container, or if
you need to store fuel in the fuel
tank, you can extend fuel storage
life by filling the fuel tank with
fresh gasoline and adding a fuel
stabilizer that is formulated for
that purpose.
If using the portable fuel tank
(optional equipment), firmly close
the fuel tank vent knob.
#
Engine Oil
Change the engine oil (p.).
1.
Remove the spark plugs (p.),
2.
and remove the clip from the
emergency stop switch.
Pour a tablespoon (510 cm ) of
3.
clean engine oil into each cylinder.
Using the emergency starter rope
4.
(p.), rotate the flywheel a few
43
revolutions to distribute the oil in
the cylinders.
Reinstall the spark plugs (p.).
5.
64
−
68
3
68
81
Page 84
STORAGE
STORAGE PRECAUTIONS
Select a well-ventilated storage area.
If possible, avoid storage areas with
high humidity.
If storing a container of gasoline,
such as the portable fuel tank
(optional equipment), store it away
from any appliance that operates with
a flame, such as a furnace, water
heater, or clothes dryer. Also avoid
any area with a spark producing
electric motor, or where power tools
are operated.
If the outboard motor will be
removed from the boat for storage,
we recommend storing it vertically
by mounting it on a commercially
available stand.
CASE PROTECTOR
If it is necessary to store the outboard
motor horizontally, drain the
carburetors (p.), and drain the
engine oil (p.), before removing
80
64
the outboard motor from the boat.
Position the outboard motor with its
carburetor side down, and cushion it
with protective packing material.
Cover the outboard motor to keep out
dust. Do not use sheet plastic as a
dust cover. A nonporous cover will
trap moisture, promoting rust and
corrosion.
REMOVAL FROM STORAGE
Check your outboard motor as
described in the
OPERATION
If the cylinders were coated with oil
during storage preparation, the
engine may smoke briefly at startup.
This is normal.
BEFORE
chapter of this manual.
OUTBOARD MOTOR STAND
(commercially available)
82
Page 85
TRANSPORTING
WITH OUTBOARD MOTOR
INSTALLED ON BOAT
When trailering a boat with the
outboard motor attached, leave the
engine in the normal running position,
if possible.
Use a motor support bar to prevent
the outboard motor from moving
while trailering the boat. Refer to the
manufacturer’s instructions for using
a motor support bar.
All Types
If there is insufficient road clearance
in the normal running position, then
tilt the outboard motor and use a
motor support bar, or remove the
outboard motor from the boat. Refer
to the manufacturer’s instructions for
using a motor support bar.
WITH OUTBOARD MOTOR
REMOVED FROM BOAT
Secure the outboard motor in either
the vertical or horizontal position
shownonp..82
MOTOR SUPPORT BAR
(commercially available)
83
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TAKING CARE OF UNEXPECTED PROBLEMS
ELECTRIC STARTER WILL
NOT OPERATE
Check battery.
1.
Check fuse.Fuse burnt out.Replace fuse (p.).
2.
Use emergency starting
3.
procedure (p.), then take
outboard motor to an authorized
Honda marine dealer, or refer to
the shop manual.
42
Battery connections loose or
corroded.
Starter malfunction, switch
malfunction, or electrical problem
in the starting circuit.
Possible CauseCorrection
Clean and tighten battery
connections.
Recharge battery.Battery discharged.
Replace or repair faulty
components as necessary.
89
84
Page 87
TAKING CARE OF UNEXPECTED PROBLEMS
CorrectionPossible CauseENGINE WILL NOT START
Check emergency stop switch
1.
clip.
Check control positions.
2.
Clip not inserted in stop switch.
Gearshift lever or control lever not
in neutral position.
Throttle grip not in START
position (long tiller handle type).
Fast idle lever raised (remote
control/side-mount type).
Insert clip in stop switch.
Shifttoneutral(p.38or40).
Turn throttle grip to START
position (p.).
Lower fast idle lever, if the engine
is warm (p.).
Bad fuel; boat stored without
treating or draining gasoline, or
refueled with bad gasoline.
Remove and inspect spark plugs.
4.
Take outboard motor to an
5.
authorized Honda marine dealer,
or refer to the shop manual.
Spark plugs faulty, fouled or
improperly gapped.
Spark plugs wet with fuel (flooded
engine).
Carburetor malfunction, fuel pump
failure, ignition malfunction, stuck
valves, etc.
86
−
Refuel (p.).
Open fuel filler cap vent (p.).
Squeeze priming bulb (p.).
Replace fuel filters (p.).
Drain fuel tank and carburetors
80
(p.). Refill with fresh gasoline
70
(p.).
Gap or replace spark plugs (p.).
Dry and reinstall spark plugs. Start
engine with the throttle open.
Replace or repair faulty
components as necessary.
70
36
37
72 and 75
68
Page 89
AFTER STARTING
TAKING CARE OF UNEXPECTED PROBLEMS
CorrectionPossible CauseHARD STARTING OR STALLS
Check control positions.Turn throttle grip to START
1.
Check fuel.
2.
Throttle grip not in START
position (long tiller handle type).
Fast idle lever raised (remote
control/side-mount type).
Fuel vent closed (portable fuel
−
tankoptional equipment).
Fuel hose not primed.
Fuel filter or fuel tank filter
clogged.
Bad fuel; boat stored without
treating or draining gasoline, or
refueled with bad fuel.
(p.).
38
Lower fast idle lever, unless
engine is warm (p.).
Open fuel filler cap vent (p.).
Squeeze priming bulb (p.).
Replace fuel filters (p.and).
Drain fuel tank and carburetors
(p.). Refill with fresh gasoline
80
(p.).
70
40
36
37
7275
87
Page 90
TAKING CARE OF UNEXPECTED PROBLEMS
HARD STARTING OR STALLS
AFTER STARTING
(continued)
Possible CauseCorrection
Remove and inspect spark plugs.
3.
Take outboard motor to an
4.
authorized Honda marine dealer,
or refer to the shop manual.
ENGINE OVERHEATSPossible CauseCorrection
Check water intake screens.Water intake screens clogged.Clean water intake screens.
1.
Take outboard motor to an
2.
authorized Honda marine dealer,
or refer to the shop manual.
Spark plugs faulty, fouled or
improperly gapped.
Carburetor malfunction, fuel pump
failure, ignition malfunction, etc.
Faulty thermostat or water pump.Replace or repair faulty
Gap or replace spark plugs (p.).
Replace or repair faulty
components as necessary.
components as necessary.
88
68
Page 91
TAKING CARE OF UNEXPECTED PROBLEMS
BATTERY WILL NOT
CHARGE AND ELECTRIC
STARTER WILL NOT
OPERATE
The battery-charging circuit and the
electric starter relay circuit are
protected by the 15-ampere fuse. If
the fuse burns out, the engine will
not charge the battery, and the
electric starter will not operate. The
engine can be started using the
emergency starter rope.
The ignition switch is protected by
the 10-ampere fuse. If the fuse burns
out, the engine will not start or run,
and the power trim/tilt switch will
not operate.
Fuse Replacement
With the engine stopped, remove
1.
the engine cover.
Remove the fuse cover.
2.
Remove and inspect the fuse. If a
3.
fuse is burnt out, install a
replacement fuse of the specified
rating. The outboard motor is
supplied with a spare fuse in each
fuse holder.
DESIGNATED FUSE:
15A, 10A
Never use a f use with a rating
greater than specif ied. Serious
damage to the electrical system
could result.
FUSE COVER
15A FUSE
SPARE 15A FUSE
FUSE COVER
BLOWN FUSE
Reinstall the fuse cover and the
4.
10A FUSE
SPARE 10A FUSE
engine cover.
Before further operation, try to
determine and correct the electrical
problem that caused the fuse to
burn out. An uncorrected electrical
problem may cause the fuse to
burn out again.
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TAKING CARE OF UNEXPECTED PROBLEMS
OIL PRESSURE INDICATOR
LIGHT GOES OFF AND
ENGINE SPEED IS LIMITED
(GREEN)
(long tiller handle type)
(GREEN)
BUZZER
(remote control type)
If oil pressure becomes low, the
green indicator light will go off, and
the engine protection system will
limit engine speed. If you are at
cruising speed, engine speed will
decrease gradually.
Remote control type is equipped with
a buzzer that sounds continuously
when the green indicator light goes
off.
The buzzer sound stops below an
engine speed of 1,400 rpm.
Low oil pressure may be the result of
a low engine oil level, or there may
be a problem with the engine
lubrication system.
If the throttle is closed suddenly after
full throttle operation, engine speed
may drop below the specified idle
rpm, and that could activate the
engine protection system
momentarily.
If low oil pressure activates the
engine protection system, stop the
engine, check the engine oil level
(p.), and add oil if needed.
63
With the engine oil at the
recommended level, restart the
engine. If the lubrication system is
OK, the green indicator light should
come on within 30 seconds, and the
engine will respond normally to
throttle grip or control lever
operation.
If the engine protection system
remains activated after 30 seconds,
return to the nearest boat landing,
and have the outboard motor
inspected by an authorized Honda
marine dealer.
90
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TAKING CARE OF UNEXPECTED PROBLEMS
OVERHEAT INDICATOR
LIGHT COMES ON AND
ENGINE SPEED IS LIMITED
(RED)
(long tiller handle type)
(RED)
BUZZER
If the engine overheats, the red
indicator light will come on, and the
engine protection system will limit
engine speed. If you are at cruising
speed, engine speed will decrease
gradually.
When normal engine temperature is
restored, the engine speed will
gradually rise to normal engine speed.
If the condition persists for another
20 seconds, the engine will shut off.
Remote control types are equipped
with a buzzer that sounds when the
red indicator light comes on.
Engine overheating may be the result
of clogged water intake screens, or
there may be a problem with the
cooling system thermostat or water
pump.
COOLING SYSTEM INDICATOR
If overheating activates the engine
protection system, idle the engine in
neutral, and check the cooling system
indicator.
If water is flowing from the cooling
system indicator, continue idling for
30 seconds. If the cooling system is
OK, the red indicator light should go
off within 30 seconds, and the engine
will respond normally to throttle grip
or control lever operation.
(remote control type)
91
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TAKING CARE OF UNEXPECTED PROBLEMS
If there is no water flowing from the
cooling system indicator, stop the
engine, and tilt the outboard motor to
inspect the water intake screens. If
clogged, clean the water intake
screens, return the outboard motor to
the running position, restart the
engine, and check the cooling system
indicator again.
the cooling system indicator, or if the
engine protection system remains
activated after 30 seconds, return to
the nearest boat landing, and have the
outboard motor inspected by an
authorized Honda marine dealer.
SUBMERGED MOTOR
A submerged outboard motor must
be serviced immediately after it is
recovered from the water in order to
minimize corrosion.
nearby, take the motor to the dealer
immediately. If you are far from a
dealer, proceed as follows:If there is still no water flowing from
Remove the engine cover, and
1.
rinse the outboard motor with
fresh water to remove salt water,
sand, mud, etc.
Drain the carburetors as described
2.
on p..
Change the engine oil as described
3.
on p.. If there was water
in the engine crankcase, or if the
used engine oil showed signs of
water contamination, then a second
engine oil change should be
performed after running the engine
for half an hour.If there is a Honda marine dealer
Remove the flywheel cover
4.80
(p. 42 ).
Remove the spark plugs (p. 68 ),
5.
and remove the clip from the
emergency stop switch. Pull the
emergency starter rope, rotate the
flywheel a few revolutions to
completely expel any water from
the cylinders.
−
6465
EMERGENCY STARTER ROPE
92
Page 95
submerged, there may be
mechanical damage, such as bent
connecting rods. If the engine
binds when cranked, do not
attempt to run the engine until it
has been repaired.
When cranking the engine with an
open ignition circuit (spark plugs
removed f rom the ignition circuit),
remove the clip from the
emergency stop switch to prevent
possible damage to the ignition
system.
TAKING CARE OF UNEXPECTED PROBLEMS
Pour a teaspoon of engine oil into
6.
each spark plug hole, then pull the
emergency starter rope several
times to lubricate the inside of the
cylinders.
Reinstall the spark plugs, and put
7.
the emergency stop switch clip
into the switch.
Attempt to start the engine.If the engine was running when it
8.
If the engine fails to start, remove
the spark plugs, dry them, then
reinstall the spark plugs and
attempt to start the engine again.
If the engine starts, and no
mechanical damage is evident,
continue to run the engine for a
half hour or longer. Be sure the
water level is at least two inches
above the antiventilation plate to
avoid overheating and water pump
damage.
As soon as possible, take the
9.
outboard motor to an authorized
Honda marine dealer for
inspection and service.
93
Page 96
TECHNICAL AND CONSUMER INFORMATION
TECHNICAL INFORMATION
Serial Number Locations
Record the product identification
number, the engine serial number and
the date of purchase in the space
provided on this page. You will need
these numbers when ordering parts,
and when making technical or
warranty inquiries (p.).
103
SWIVEL CASE
PRODUCT IDENTIFICATION
NUMBER
The product identification number is
stamped on a plate attached on top of
the swivel case.
Product identification number:
Date of purchase:
STARTER MOTOR
ENGINE SERIAL NUMBER
The engine serial number is stamped
on the cylinder block under the
starter motor which is located in the
front of the engine.
Engine serial number:
94
Page 97
TECHNICAL AND CONSUMER INFORMATION
Carburetor Modification for
High Altitude Operation
At high altitude, the standard
carburetor air-fuel mixture will be
too rich. Performance will decrease,
and fuel consumption will increase.
A very rich mixture will also foul the
spark plugs and cause hard starting.
High altitude performance can be
improved by specific modifications
to the carburetors. If you always
operate your outboard motor at
altitudes above 5,000 feet (1,500
meters), have an authorized Honda
marine dealer perform this carburetor
modification.
Even with carburetor modification,
engine horsepower will decrease
about 3.5% for each 1,000-foot (300meter) increase in altitude. The effect
of altitude on horsepower will be
greater than this if no carburetor
modification is made.
When the carburetors have been
modif ied f or high altitude operation,
the air-f uel mixture will be too lean
f or low altitude use. Operation at
altitudes below 5,000 feet (1,500
meters) with modified carburetors
may cause the engine to overheat
and result in serious engine damage.
For use at low altitudes, have an
authorized Honda marine dealer
return the carburetors to original
f actory specif ications.
Battery
For complete information, refer to
the battery manufacturer’s
instructions.
Minimum Requirements
−12V65Ah (CCA420)
95
Page 98
TECHNICAL AND CONSUMER INFORMATION
Oxygenated Fuels
Some conventional gasolines are
being blended with alcohol or an
ether compound. These gasolines are
collectively referred to as oxygenated
fuels. To meet clean air standards,
some areas of the United States and
Canada use oxygenated fuels to help
reduce emissions.
If you use an oxygenated fuel, be
sure it is unleaded and meets the
minimum octane rating requirement.
Before using an oxygenated fuel, try
to confirm the fuel’s contents. Some
states/provinces require this
information to be posted on the pump.
The following are the EPA-approved
percentages of oxygenates:
ETHANOL:
10% by volume.
You may use gasoline containing up
to 10% ethanol by volume. Gasoline
containing ethanol may be marketed
under the name ‘‘Gasohol’’.
MTBE:
15% by volume.
You may use gasoline containing up
to 15% MTBE by volume.
METHANOL:
alcohol; 5% by volume.
You may use gasoline containing up
to 5% methanol by volume, as long
as it also contains cosolvents and
corrosion inhibitors to protect the
fuel system. Gasoline containing
more than 5% methanol by volume
may cause starting and/or
performance problems. It may also
ethyl or grain alcohol;
Methyl Tertiary Butyl Ether;
methyl or wood
damage metal, rubber, and plastic
parts of your fuel system.
If you notice any undesirable
operating symptoms, try another
service station, or switch to another
brand of gasoline.
Fuel system damage or performance
problems resulting from the use of an
oxygenated fuel containing more
than the percentages of oxygenates
mentioned above are not covered
under warranty.
96
Page 99
TECHNICAL AND CONSUMER INFORMATION
Emission Control System
Information
Source of Emissions
The combustion process produces
carbon monoxide, oxides of nitrogen,
and hydrocarbons. Control of
hydrocarbons and oxides of nitrogen
is very important because, under
certain conditions, they react to form
photochemical smog when subjected
to sunlight. Carbon monoxide does
not react in the same way, but it is
toxic.
Honda utilizes lean carburetor
settings and other systems to reduce
the emissions of carbon monoxide,
oxides of nitrogen, and hydrocarbons.
Air Acts
EPA and California regulations
require all manufacturers to furnish
written instructions describing the
operation and maintenance of
emission control systems.
The following instructions and
procedures must be followed in order
to keep the emissions from your
Honda engine within the emission
standards.
Tampering and AlteringThe U.S. and Calif ornia Clean
Tampering with or altering the
emission control system may increase
emissions beyond the legal limit.
Among those acts that constitute
tampering are:
Removal or alteration of any part
of the intake, fuel, or exhaust
systems.
Alterations that would cause the
engine to operate outside its design
parameters.
97
Page 100
TECHNICAL AND CONSUMER INFORMATION
Emissions
If you are aware of any of the
following symptoms, have your
engine inspected and repaired by
your servicing dealer.
Hard starting or stalling after
starting.
Rough idle.
Misfiring or backfiring under load.
Afterburning (backfiring).
Black exhaust smoke or high fuel
consumption.
Replacement PartsProblems That May Aff ect
The emission control systems on
your Honda engine were designed,
built, and certified to conform with
EPA and California emission
regulations. We recommend the use
of genuine Honda parts whenever
you have maintenance done. These
original-design replacement parts are
manufactured to the same standards
as the original parts, so you can be
confident of their performance. The
use of replacement parts that are not
of the original design and quality
may impair the effectiveness of your
emission control system.
A manufacturer of an aftermarket
part assumes the responsibility that
the part will not adversely affect
emission performance. The
manufacturer or rebuilder of the part
must certify that use of the part will
not result in a failure of the engine to
comply with emission regulations.
Maintenance
Follow the maintenance schedule on
p.. Remember that this schedule
59
is based on the assumption that your
machine will be used for its designed
purpose. Sustained high-load
operation, or use in unusual
conditions, will require more
frequent service.
98
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