Yamaha F350A User manual

OWNER’S MANUAL
F350A
FL350A
6AW-28199-70-E0

EMU25051
Read this owner’s manual carefully before operating or working on your
outboard motor. Keep this manual onboard in a waterproof bag when
boating. This manual should stay with the outboard motor if it is sold.

Important manual information
EMU25103
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. Any damage
resulting from neglect of these instructions is
not covered by warranty.
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 F350AET, FL350AET and the standard
accessories are used as a base for the ex-
planations and illustrations in this manual.
Therefore some items may not apply to ev-
ery model.
EMU25121
F350A, FL350A
OWNER’S MANUAL
©2007 by Yamaha Motor Co., Ltd.
1st Edition, May 2007
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan

Table of contents
General information .......................... 1
Identification numbers record.......... 1
Outboard motor serial number .......... 1
Digital electronic control serial
number............................................ 1
Key number....................................... 2
EC label........................................... 2
Read manuals and labels................ 3
Warning labels .................................. 3
Safety information............................. 7
Safety information ........................... 7
Rotating parts.................................... 7
Hot parts ........................................... 7
Electric shock.................................... 7
Power trim and tilt ............................. 7
Engine shut-off cord.......................... 7
Gasoline............................................ 7
Gasoline exposure and spills ............ 7
Carbon monoxide.............................. 8
Modifications ..................................... 8
Boating safety ................................. 8
Alcohol and drugs ............................. 8
Personal flotation devices ................. 8
People in the water ........................... 8
Passengers ....................................... 8
Overloading....................................... 8
Avoid collisions ................................. 8
Weather ............................................ 9
Passenger training ............................ 9
Boating safety publications ............... 9
Laws and regulations ........................ 9
Basic requirements ......................... 10
Fueling instructions ....................... 10
Gasoline.......................................... 10
Engine oil ........................................ 10
Installation requirements ............... 11
Boat horsepower rating................... 11
Mounting motor ............................... 11
Digital electronic control
requirements................................. 11
Battery requirement ........................ 12
Propeller selection .......................... 12
Start-in-gear protection ................. 13
Basic components .......................... 14
Main components ......................... 14
Digital electronic control .................. 16
Digital electronic control-active
indicator ........................................ 17
Digital electronic control-warning
indicator ........................................ 17
Control lever .................................... 18
Free throttle switch.......................... 18
Throttle friction adjuster................... 19
Engine shut-off switch ..................... 20
Main switch ..................................... 20
Power trim and tilt switch on digital
electronic control........................... 21
Power trim and tilt switch on bottom
engine cowling .............................. 21
Power trim and tilt switches
(twin type) ..................................... 22
Tilt limiter ......................................... 22
Tilt support lever for power trim
and tilt model.................................22
Top cowling lock lever (turn type) ...23
Flushing device ............................... 23
Fuel filter/Water separator............... 24
6Y8 Multifunction meters................. 24
Tachometer unit .............................. 24
Speed & fuel meter unit................... 28
Speedometer unit ............................ 29
Fuel management meter ................. 30
Warning system ............................ 31
Digital electronic control warning ....31
Overheat warning (twin engines) ....31
Low oil pressure warning ................32
Operation ......................................... 34
Installation..................................... 34
Mounting the outboard motor .......... 34
Breaking in engine ........................ 35
Procedure for 4-stroke models........ 35
Pre-operation checks.................... 36
Fuel ................................................. 36
Controls ........................................... 36
Stop switches .................................. 36
Engine ............................................. 36
Checking the engine oil level ..........36
Filling fuel...................................... 37
Operating engine .......................... 37

Table of contents
Priming fuel system......................... 37
Starting engine................................ 37
Warming up engine ....................... 39
Shifting .......................................... 39
Stopping boat ................................ 40
Stopping engine ............................ 40
Procedure ....................................... 40
Trimming outboard motor.............. 41
Adjusting trim angle
(Power trim and tilt)....................... 41
Adjusting boat trim .......................... 42
Tilting up and down ....................... 43
Procedure for tilting up
(power trim and tilt models) .......... 43
Procedure for tilting down
(power trim and tilt models) .......... 45
Cruising in shallow water .............. 45
Power trim and tilt models............... 45
Cruising in other conditions........... 47
Maintenance..................................... 48
Specifications ................................ 48
Transporting and storing
outboard motor............................ 49
Storing outboard motor ................... 49
Procedure ....................................... 50
Lubrication ...................................... 50
Flushing power unit......................... 51
Cleaning the outboard motor .......... 52
Checking painted surface of
motor............................................. 52
Periodic maintenance.................... 52
Replacement parts.......................... 52
Severe operating conditions ........... 52
Maintenance chart 1 ....................... 54
Maintenance chart 2 ....................... 56
Greasing ......................................... 57
Cleaning and adjusting spark
plug ............................................... 58
Checking fuel system...................... 61
Inspecting idling speed ................... 62
Changing engine oil ........................ 62
Checking wiring and connectors ..... 62
Exhaust leakage ............................. 63
Water leakage................................. 63
Engine oil leakage........................... 63
Checking power trim and tilt
system........................................... 63
Checking propeller .......................... 64
Removing propeller ......................... 65
Installing propeller ........................... 65
Changing gear oil ............................ 66
Inspecting and replacing
anode(s)........................................ 67
Checking battery
(for electric start models) ..............68
Connecting the battery .................... 69
Disconnecting the battery................ 71
Checking top cowling ...................... 71
Coating the boat bottom.................. 71
Trouble Recovery............................ 72
Troubleshooting ............................ 72
Temporary action in
emergency .................................. 75
Impact damage ............................... 75
Running single engine
(twin engines)................................ 75
Replacing fuse ................................ 76
Power trim and tilt will not
operate.......................................... 77
Water separator-warning indicator
blinks while cruising ...................... 77
Treatment of submerged motor .... 79

1
General information
EMU25171
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.
EMU34940
Digital electronic control serial
number
The digital electronic control serial number is
stamped on the label attached to the digital
electronic control box.
Record your digital electronic control serial
number in the spaces provided to assist you
in newly connecting the digital electronic
control to the outboard motor.
NOTE:
Consult your Yamaha dealer if you have any
questions concerning the digital electronic
control serial number.
1. Outboard motor serial number location
1ZMU05814
1. Digital electronic control serial number loca-
tion
1. Digital electronic control serial number loca-
tion
ZMU05885
1
ZMU05887
1

General information
2
EMU25190
Key number
If a main key switch is equipped with the mo-
tor, the key identification number is stamped
on your key as shown in the illustration.
Record this number in the space provided for
reference in case you need a new key.
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.
1. Key number
1. EC label location
ZMU05943
1
ZMU01696

General information
3
EMU33520
Read manuals and labels
Before operating or working on this motor:
●
Read this manual.
●
Read any manuals supplied with the boat.
● Read all labels on the outboard motor and the boat.
If you need any additional information, contact your Yamaha dealer.
EMU33831
Warning labels
If these labels are damaged or missing, contact your Yamaha dealer for replacements.
F350A
4
2
1
ZMU05942

General information
4
FL350A
4
2
13
ZMU05815

General information
5
EMU34641
Contents of labels
The above warning labels mean as follows.
1
WARNING
EWM01681
●
Keep hands, hair, and clothing away
from rotating parts while the engine is
running.
●
Do not touch or remove electrical parts
when starting or during operation.
2
WARNING
EWM01671
●
Read Owner’s Manuals and labels.
● Wear an approved personal flotation
device (PFD).
●
Attach engine shut-off cord (lanyard) to
your PFD, arm, or leg so the engine
stops if you accidentally leave the
helm, which could prevent a runaway
boat.
3
WARNING
EWM01282
Use only a counterclockwise rotation
propeller with this engine.
Counterclockwise propellers are marked
with a letter “L”after the size indication.
The wrong type of propeller could cause
the boat to go in an unexpected direction,
which could lead to an accident.
12
3
ZMU05707
6K1-83823-41