Yamaha F4A User manual

OWNER’S MANUAL
F4A
68D-F8199-76-E0
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EMU25050
Read this owner’s manual carefully before operating your outboard motor.
✼✩✫✱✪✩✲✣✻ ✤  

Important manual information
EMU25101
To the owner
Thank you for choosing a Yamaha outboard
motor. This Owner’s Manual contains infor-
mation needed for proper operation, mainte-
nance and care. A thorough understanding
of these simple instructions will help you ob-
tain maximum enjoyment from your new
Yamaha. If you have any question about the
operation or maintenance of your outboard
motor, please consult a Yamaha dealer.
In this Owner’s Manual particularly important
information is distinguished in the following
ways.
The Safety Alert Symbol means
ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED!
WARNING
EWM00780
Failure to follow WARNING instructions
could result in severe injury or death to
the machine operator, a bystander, or a
person inspecting or repairing the out-
board motor.
CAUTION:
ECM00700
A CAUTION indicates special precautions
that must be taken to avoid damage to the
outboard motor.
NOTE:
A NOTE provides key information to make
procedures easier or clearer.
Yamaha continually seeks advancements in
product design and quality. Therefore, while
this manual contains the most current prod-
uct information available at the time of print-
ing, there may be minor discrepancies
between your machine and this manual. If
there is any question concerning this manu-
al, please consult your Yamaha dealer.
To ensure long product life, Yamaha recom-
mends that you use the product and perform
the specified periodic inspections and main-
tenance by correctly following the instruc-
tions in the owner’s manual. Note that if you
do not follow these instructions, not only may
the product break down, but the warranty will
also be voided.
Some countries have laws or regulations re-
stricting users from taking the product out of
the country where it was purchased, and it
may be impossible to register the product in
the destination country. Additionally, the
warranty may not apply in certain regions.
When planning to take the product to another
country, consult the dealer where the prod-
uct was purchased for further information.
If the product was purchased used, please
consult your closest dealer for customer re-
registration, and to be eligible for the speci-
fied services.
NOTE:
The F4AMH and the standard accessories
are used as a base for the explanations and
illustrations in this manual. Therefore some
items may not apply to every model.
EMU25140
F4A
OWNER’S MANUAL
©2006 by Yamaha Motor Co., Ltd.
1st Edition, February 2006
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in France
✼✩✫✱✪✩✲✣✻ ✤  

Table of contents
General information .......................... 1
Identification numbers record.......... 1
Outboard motor serial number .......... 1
EC label........................................... 1
Emission control information ........... 1
SAV models ...................................... 1
Safety information ........................... 2
Important labels............................... 3
Warning labels .................................. 3
Caution labels ................................... 4
Fueling instructions ......................... 4
Gasoline............................................ 5
Engine oil .......................................... 5
Propeller selection........................... 5
Start-in-gear protection ................... 6
Basic components ............................ 7
Main components............................ 7
Fuel tank ........................................... 7
Fuel tank ........................................... 8
Fuel joint ........................................... 8
Fuel gauge ........................................ 8
Fuel tank cap .................................... 8
Air vent screw ................................... 8
Fuel cock........................................... 8
Open ................................................. 9
Tiller handle ...................................... 9
Gear shift lever.................................. 9
Throttle grip..................................... 10
Throttle indicator ............................. 10
Throttle friction adjuster................... 10
Engine stop lanyard switch ............. 11
Engine stop button .......................... 11
Choke knob for pull type ................. 11
Manual starter handle ..................... 12
Steering friction adjuster ................. 12
Trim rod (tilt pin).............................. 12
Tilt lock mechanism......................... 12
Tilt support bar ................................ 12
Top cowling lock lever (pull up
type).............................................. 13
Carrying handle............................... 13
Operation ......................................... 14
Installation ..................................... 14
Mounting the outboard motor.......... 14
Clamping the outboard motor ......... 15
Breaking in engine ........................ 16
Procedure for 4-stroke models........ 16
Preoperation checks ..................... 16
Fuel ................................................. 16
Controls ........................................... 17
Engine ............................................. 17
Checking the engine oil level ..........17
Filling fuel...................................... 17
Operating engine .......................... 18
Feeding fuel .................................... 18
Starting engine ................................ 19
Warming up engine....................... 21
Manual start models........................ 21
Shifting.......................................... 21
Forward (tiller handle and remote
control models) ............................. 22
Reverse ........................................... 22
Stopping engine............................ 22
Procedure........................................ 22
Trimming outboard motor.............. 23
Adjusting trim angle for manual
tilt models...................................... 24
Adjusting boat trim ..........................24
Tilting up and down....................... 25
Procedure for tilting up (manual
tilt models)..................................... 26
Procedure for tilting down
(manual tilt models).......................27
Cruising in shallow water .............. 28
Cruising in shallow water
(manual tilt models).......................28
Cruising in other conditions........... 29
Maintenance .................................... 30
Specifications................................ 30
Transporting and storing
outboard motor ........................... 31
Clamp screw mounting models ....... 31
Storing outboard motor ...................32
Procedure........................................ 32
Lubrication (except oil injection
models) ......................................... 34
Cleaning the outboard motor........... 34
Checking painted surface of
motor............................................. 34
Periodic maintenance ................... 34
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Table of contents
Replacement parts.......................... 34
Maintenance chart .......................... 35
Maintenance chart (additional)........ 36
Greasing ......................................... 37
Cleaning and adjusting spark
plug ............................................... 37
Checking fuel system...................... 38
Checking fuel filter .......................... 39
Inspecting idling speed ................... 39
Changing engine oil ........................ 39
Checking wiring and connectors ..... 41
Exhaust leakage ............................. 41
Water leakage................................. 41
Engine oil leakage........................... 41
Checking propeller .......................... 41
Removing the propeller................... 42
Installing the Propeller .................... 42
Changing gear oil............................ 43
Cleaning fuel tank ........................... 44
Inspecting and replacing
anode(s)........................................ 44
Checking top cowling ...................... 45
Coating the boat bottom.................. 45
Trouble Recovery ............................ 46
Troubleshooting ............................ 46
Temporary action in
emergency .................................. 49
Impact damage ............................... 49
Starter will not operate .................... 49
Emergency starting engine ............. 50
Treatment of submerged motor..... 51
Procedure ....................................... 51
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1
General information
EMU25170
Identification numbers record
EMU25183
Outboard motor serial number
The outboard motor serial number is
stamped on the label attached to the port
side of the clamp bracket.
Record your outboard motor serial number in
the spaces provided to assist you in ordering
spare parts from your Yamaha dealer or for
reference in case your outboard motor is sto-
len.
EMU25202
EC label
Engines affixed with this label conform to
certain portions of the European Parliament
directive relating to machinery. Refer to the
label and the EC Declaration of Conformity
for more details.
EMU25221
Emission control information
EMU25351
SAV models
Engines affixed with the label pictured below
conform to SAV (the Swiss exhaust emission
regulations for Swiss inshore waters).
1. Outboard motor serial number location
1. EC label location
ZMU02651
1
ZMU01696
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General information
2
Approval label of emission control certif-
icate
Fuel requirement label
EMU25371
Safety information
● Before mounting or operating the outboard
motor, read this entire manual. Reading it
should give you an understanding of the
motor and its operation.
●
Before operating the boat, read any own-
er’s or operator’s manuals supplied with it
and all labels. Be sure you understand
each item before operating.
●
Do not overpower the boat with this out-
board motor. Overpowering the boat could
result in loss of control. The rated power of
the outboard should be equal to or less
than the rated horsepower capacity of the
boat. If the rated horsepower capacity of
the boat is unknown, consult the dealer or
boat manufacturer.
●
Do not modify the outboard. Modifications
could make the motor unfit or unsafe to
use.
●
Incorrect propeller selection and incorrect
use may not only cause engine damage,
but also adversely affect fuel consumption.
Consult your dealer for correct use.
●
Never operate after drinking alcohol or tak-
ing drugs. About 50% of all boating fatali-
ties involve intoxication.
●
Have an approved personal flotation de-
vice (PFD) on board for every occupant. It
is a good idea to wear a PFD whenever
boating. At a minimum, children and non-
swimmers should always wear PFDs, and
1. Approval label location
1. Fuel requirement label location
1
ZMU04493
YAMAHA MOTOR CO.,LTD.
Motorfamilie
Abgastypenpruf-
Nummer
ZMU04492
1
ZMU04495
ZMU04494
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General information
3
everyone should wear PFDs when there
are potentially hazardous boating condi-
tions.
●
Gasoline is highly flammable, and its va-
pors are flammable and explosive. Handle
and store gasoline carefully. Make sure
there are no gas fumes or leaking fuel be-
fore starting the engine.
●
This product emits exhaust gases which
contain carbon monoxide, a colorless,
odorless gas which may cause brain dam-
age or death when inhaled. Symptoms in-
clude nausea, dizziness, and drowsiness.
Keep cockpit and cabin areas well ventilat-
ed. Avoid blocking exhaust outlets.
●
Check throttle, shift, and steering for prop-
er operation before starting the engine.
●
Attach the engine stop switch lanyard to a
secure place on your clothing, or your arm
or leg while operating. If you accidentally
leave the helm, the lanyard will pull from
the switch, stopping the engine.
● Know the marine laws and regulations
where you will be boating - and obey them.
●
Stay informed about the weather. Check
weather forecasts before boating. Avoid
boating in hazardous weather.
●
Tell someone where you are going: leave
a Float Plan with a responsible person. Be
sure to cancel the Float Plan when you re-
turn.
● Use common sense and good judgment
when boating. Know your abilities, and be
sure you understand how your boat han-
dles under the different boating conditions
you may encounter. Operate within your
limits, and the limits of your boat. Always
operate at safe speeds, and keep a careful
watch for obstacles and other traffic.
●
Always watch carefully for swimmers dur-
ing the engine operation.
●
Stay away from swimming areas.
● When a swimmer is in the water near you
shift into neutral and shut off the engine.
●
Do not illegally discard empty containers
used to replace or replenish oil. For the
correct processing of empty containers,
consult the dealer where you purchased
the oil.
●
When replacing oils used to lubricate the
product (engine or gear oil), be sure to
wipe away any spilt oil. Never pour oil with-
out using a funnel or similar device. If nec-
essary, verify the necessary replacement
procedure with the dealer.
●
Never illegally discard (dump) the product.
Yamaha recommends consulting the deal-
er on discarding the product.
EMU25382
Important labels
EMU25395
Warning labels
EMU25401
Label
WARNING
EWM01260
●
Be sure shift control is in neutral before
starting engine. (except 2HP)
●
Do not touch or remove electrical parts
when starting or during operation.
● Keep hands, hair, and clothes away
from flywheel and other rotating parts
ZMU04496
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General information
4
while engine is running.
EMU25431
Label
WARNING
EWM01300
● This engine is equipped with a neutral
starting device.
●
The engine will not start unless the shift
control is in neutral position.
EMU25441
Label
WARNING
EWM01311
LEAKING FUEL COULD CAUSE A FIRE.
Before tilting up the engine or laying it on
its side:
●
Turn the fuel cock to the “closed”posi-
tion.
●
Tighten the air-vent screw on the fuel
tank cap.
EMU25465
Caution labels
EMU25482
Label
CAUTION:
ECM01201
Store the engine only as shown.
Otherwise, engine damage could result
from leaking oil.
EMU25540
Fueling instructions
WARNING
EWM00010
GASOLINE AND ITS VAPORS ARE HIGH-
LY FLAMMABLE AND EXPLOSIVE!
● Do not smoke when refueling, and keep
away from sparks, flames, or other
sources of ignition.
● Stop engine before refueling.
●
Refuel in a well-ventilated area. Refuel
portable fuel tanks off the boat.
● Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
dry rags.
● Do not overfill the fuel tank.
●
Tighten the filler cap securely after re-
fueling.
● If you should swallow some gasoline,
inhale a lot of gasoline vapor, or get
gasoline in your eyes, get immediate
medical attention.
●
If any gasoline spills onto your skin, im-
mediately wash with soap and water.
Change clothing if gasoline spills on it.
●
Touch the fuel nozzle to the filler open-
ing or funnel to help prevent electro-
static sparks.
CAUTION:
ECM00010
Use only new clean gasoline which has
been stored in clean containers and is not
contaminated with water or foreign mat-
ter.
ZMU02655
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General information
5
EMU25580
Gasoline
If knocking or pinging occurs, use a different
brand of gasoline or premium unleaded fuel.
EMU25683
Engine oil
NOTE:
If the recommended engine oil grades are
not available, select an alternative from the
following chart according to the average
temperatures in your area.
CAUTION:
ECM01050
All 4-stroke engines are shipped from the
factory without engine oil.
EMU25742
Propeller selection
The performance of your outboard motor will
be critically affected by your choice of propel-
ler, as an incorrect choice could adversely
affect performance and could also seriously
damage the motor. Engine speed depends
on the propeller size and boat load. If engine
speed is too high or too low for good engine
performance, this will have an adverse effect
on the engine.
Yamaha outboard motors are fitted with pro-
Recommended gasoline:
Regular unleaded gasoline with a min-
imum octane rating of 90 (Research
Octane Number).
Recommended engine oil:
4-stroke motor oil with a combination
of the following SAE and API oil classi-
fications
Engine oil type SAE:
10W-30 or 10W-40
Engine oil grade API:
SE, SF, SG, SH, SJ, SL
Engine oil quantity (excluding oil filter):
0.5 L (0.53 US qt) (0.44 Imp.qt)
ZMU01710
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