Yamaha F250 User manual

F250
LF250
OWNER’S MANUAL
LIT-18626-07-16
6P2-28199-13
U.S.A.Edition

ZMU01690
Read this owner’s manual carefully before operating your outboard motor.
U6P213E0.book Page 1 Thursday, March 9, 2006 10:20 AM

Important manual information
EMU31280
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 obtain
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 AT-
TENTION! BECOME ALERT! YOUR SAFE-
TY IS INVOLVED!
WARNING
EWM00780
Failure to follow WARNING instructions
could result in severe injury or death to the
machine operator, a bystander, or a per-
son inspecting or repairing the outboard
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 product
information available at the time of printing,
there may be minor discrepancies between
your machine and this manual. If there is any
question concerning this manual, please con-
sult your Yamaha dealer.
NOTE:
The F250TR, LF250TR and the standard ac-
cessories are used as a base for the explana-
tions and illustrations in this manual.
Therefore some items may not apply to every
model.
EMU25110
F250, LF250
OWNER’S MANUAL
©2006 by Yamaha Motor Corporation,
USA
1st edition, March 2006
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, USA
is expressly prohibited.
Printed in Japan
P/N LIT-18626-07-16
U6P213E0.book Page 1 Thursday, March 9, 2006 10:20 AM

Table of contents
General information .......................... 1
Identification numbers record.......... 1
Outboard motor serial number ........... 1
Key number........................................ 1
Emission control information ........... 1
North American models...................... 1
Star labels .......................................... 2
Safety information ........................... 3
Important labels............................... 4
Warning labels.................................... 4
Basic boating rules
(Rules of the road) ....................... 5
Steering and sailing rules and sound
signals............................................. 5
Rules when encountering vessels...... 5
Other special situations...................... 6
Fueling instructions ......................... 8
Gasoline ............................................. 9
Engine oil............................................ 9
Battery requirement....................... 10
Battery specifications ....................... 10
Propeller selection......................... 10
Start-in-gear protection ................. 11
Basic components .......................... 12
Main components.......................... 12
Remote control ................................. 13
Remote control lever ........................ 14
Free accelerator ............................... 14
Throttle friction adjuster.................... 15
Engine stop lanyard switch............... 15
Main switch....................................... 16
Power trim and tilt switch on remote
control or tiller handle.................... 16
Power trim and tilt switch on bottom
engine cowling .............................. 17
Power trim and tilt switches
(twin binnacle type) ....................... 17
Trim tab with anode.......................... 17
Tilt support lever for power trim and
tilt or hydro tilt model..................... 18
Top cowling lock lever
(pull up type) ................................. 19
Flushing device ................................ 19
Water separator................................ 19
Digital tachometer ............................ 20
Low oil pressure warning indicator ... 20
Overheat warning indicator
(digital type) .................................. 20
Speedometer (digital type) ............... 21
Trim meter (digital type) ................... 21
Hour meter (digital type)................... 22
Trip meter ......................................... 22
Clock ................................................ 22
Fuel gauge ....................................... 23
Fuel warning indicator ...................... 23
Low battery voltage warning
indicator ........................................ 23
Fuel management meter .................. 24
Fuel flow meter................................. 24
Fuel consumption meter................... 25
Fuel economy ................................... 25
Twin-engine speed synchronizer...... 26
Water separator warning indicator ... 26
Command link multifunction
meters ........................................... 26
Tachometer unit ............................... 27
Speed & fuel meter unit.................... 30
Speedometer unit ............................. 31
Fuel management meter .................. 32
Warning system ............................ 32
Overheat warning (twin engines)...... 32
Low oil pressure warning.................. 33
Operation ......................................... 34
Installation..................................... 34
Mounting the outboard motor ........... 34
Breaking in engine ........................ 35
Procedure for 4-stroke models ......... 35
Preoperation checks ..................... 35
Fuel .................................................. 36
Controls ............................................ 36
Stop switches ................................... 36
Engine .............................................. 36
Checking the engine oil level............ 36
Filling fuel...................................... 36
Ring Free Fuel Additive .................... 36
U6P213E0.book Page 1 Thursday, March 9, 2006 10:20 AM

Table of contents
Operating engine........................... 37
Priming fuel system .......................... 37
Starting engine ................................. 37
Warming up engine ....................... 39
Electric start models ......................... 39
Shifting .......................................... 39
Braking .......................................... 40
Stopping engine ............................ 40
Procedure......................................... 40
Trimming outboard motor.............. 41
Adjusting trim angle.......................... 41
Adjusting boat trim............................ 42
Tilting up and down ....................... 43
Procedure for tilting up
(power trim and tilt models /
power tilt models).......................... 43
Procedure for tilting down
(power trim and tilt models /
power tilt models).......................... 45
Cruising in shallow water .............. 45
Power trim and tilt models /
power tilt models ........................... 45
Cruising in other conditions........... 46
Maintenance..................................... 47
Specifications ................................ 47
Transporting and storing outboard
motor .......................................... 48
Storing outboard motor..................... 48
Procedure......................................... 49
Lubrication........................................ 49
Cleaning and anticorrosion
measures ...................................... 49
Battery care ...................................... 49
Flushing power unit .......................... 50
Cleaning the outboard motor............ 51
Checking painted surface of motor... 51
Periodic maintenance.................... 51
Replacement parts ........................... 52
Maintenance chart............................ 52
Maintenance chart (additional) ......... 53
Greasing........................................... 54
Cleaning and adjusting spark plug ... 54
Checking fuel system ....................... 56
Changing engine oil.......................... 56
Checking wiring and connectors ...... 59
Exhaust leakage............................... 59
Water leakage .................................. 59
Engine oil leakage ............................ 59
Checking power trim and tilt
system........................................... 60
Checking propeller ........................... 61
Removing the propeller .................... 62
Installing the Propeller...................... 62
Changing gear oil ............................. 63
Inspecting and replacing anode(s) ... 64
Checking battery
(for electric start models) .............. 65
Connecting the battery ..................... 66
Disconnecting the battery ................. 67
Checking top cowling ....................... 67
Coating the boat bottom ................... 67
Trouble Recovery............................ 68
Troubleshooting ............................ 68
Temporary action in emergency ... 71
Impact damage................................. 71
Running single engine...................... 71
Replacing fuse.................................. 72
Power trim and tilt / power tilt will
not operate .................................... 73
Water separator warning indicator
blinks while cruising ...................... 73
Treatment of submerged motor .... 75
Procedure......................................... 75
Consumer information ................... 76
Important warranty information for
U.S.A. and Canada .................... 76
YAMAHA MOTOR
CORPORATION, U.S.A.
FOUR-STROKE OUTBOARD
MOTOR THREE-YEAR
LIMITED WARRANTY ............... 78
U6P213E0.book Page 2 Thursday, March 9, 2006 10:20 AM