Yamaha F115 Owners Manual

							F115
LF115
OWNER’S MANUAL
68V-28199-18
U.S.A.Edition
LIT-18626-07-13
7
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EMU25060
ZMU01690
 
Read this owner’s manual carefully before operating your outboard motor.
7
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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 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.
NOTE:
 
The F115TR, LF115TR and the standard ac-
cessories are used as a base for the expla-
nations and illustrations in this manual.
Therefore some items may not apply to ev- 
ery model. 
EMU25110 
F115, LF115
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-18626-07-13 
						

							 
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
Neutral interlock trigger ................... 14
Neutral throttle lever ........................ 14
Free accelerator .............................. 15
Tiller handle .................................... 15
Gear shift lever ................................ 15
Throttle grip ..................................... 16
Throttle indicator ............................. 16
Throttle friction adjuster................... 16
Engine stop lanyard switch ............. 17
Engine stop button .......................... 18
Main switch ..................................... 18
Steering friction adjuster ................. 18
Power trim and tilt switch on remote 
control or tiller handle ................... 19
Power trim and tilt switch on bottom 
engine cowling .............................. 19
Power trim and tilt switches (twin 
binnacle type) ............................... 20Trim tab with anode......................... 20
Tilt support lever for power trim and 
tilt or hydro tilt model ..................... 21
Top cowling lock lever 
(pull up type) ................................. 21
Flushing device ............................... 22
Water separator .............................. 22
Tachometer ..................................... 22
Digital tachometer ........................... 22
Low oil pressure warning 
indicator ........................................ 23
Low oil pressure warning 
indicator ........................................ 23
Overheat warning indicator ............. 24
Overheat warning indicator (digital 
type) .............................................. 24
Speedometer (digital type) .............. 24
Trim meter ....................................... 25
Trim meter (digital type) .................. 25
Hour meter (digital type) .................. 25
Trip meter ........................................ 26
Clock ............................................... 26
Fuel gauge ...................................... 26
Fuel warning indicator ..................... 27
Low battery voltage warning 
indicator ........................................ 27
Fuel management meter ................. 27
Fuel flow meter ................................ 28
Fuel consumption meter.................. 28
Fuel economy.................................. 28
Twin-engine speed synchronizer .... 29
Command link multifunction 
meters ........................................... 30
Tachometer unit .............................. 30
Speed & fuel meter unit................... 33
Speedometer unit ............................ 34
Fuel management meter ................. 35 
Warning system ............................  36 
Overheat warning (twin engines) .... 36
Low oil pressure warning ................ 37 
Operation ......................................... 38 
Installation .....................................  38 
Mounting the outboard motor .......... 38 
Breaking in engine ........................  39 
Procedure for 4-stroke models ........ 39 
						

							 
Table of contents 
Preoperation checks .....................  40 
Fuel ................................................. 40
Controls ........................................... 40
Engine ............................................. 40
Checking the engine oil level .......... 40 
Filling fuel ......................................  41 
Ring Free Fuel Additive .................. 41 
Operating engine...........................  41 
Feeding fuel .................................... 41
Starting engine ................................ 42 
Warming up engine .......................  45 
Manual start and electric start 
models .......................................... 45 
Shifting ..........................................  45 
Forward (tiller handle and remote 
control models) ............................. 45
Reverse (automatic reverse lock 
and power trim and tilt models)..... 46 
Stopping engine ............................  47 
Procedure ....................................... 47 
Trimming outboard motor ..............  48 
Adjusting trim angle ........................ 48
Adjusting boat trim .......................... 49 
Tilting up and down .......................  50 
Procedure for tilting up (power trim 
and tilt models / power tilt 
models) ......................................... 51
Procedure for tilting down (power 
trim and tilt models / power tilt 
models) ......................................... 52 
Cruising in shallow water ..............  53 
Power trim and tilt models / power 
tilt models...................................... 53 
Cruising in other conditions ...........  54 
Maintenance..................................... 56 
Specifications ................................  56
Transporting and storing outboard 
motor ........................................... 57 
Storing outboard motor ................... 57
Procedure ....................................... 58
Lubrication ...................................... 59
Cleaning and anticorrosion 
measures ...................................... 59
Battery care ..................................... 59
Flushing power unit ......................... 60Cleaning the outboard motor........... 61
Checking painted surface of 
motor ............................................. 61 
Periodic maintenance ...................  61 
Replacement parts .......................... 61
Maintenance chart........................... 62
Maintenance chart (additional) ........ 63
Greasing.......................................... 64
Cleaning and adjusting spark 
plug ............................................... 64
Checking fuel system ...................... 65
Inspecting idling speed.................... 66
Changing engine oil ........................ 66
Checking wiring and connectors ..... 68
Exhaust leakage.............................. 68
Water leakage ................................. 68
Engine oil leakage ........................... 68
Checking power trim and tilt 
system........................................... 68
Checking propeller .......................... 69
Removing the propeller ................... 70
Installing the Propeller..................... 70
Changing gear oil ............................ 71
Inspecting and replacing 
anode(s) ........................................ 72
Checking battery (for electric start 
models) ......................................... 73
Connecting the battery .................... 73
Disconnecting the battery................ 74
Checking top cowling ...................... 74
Coating the boat bottom .................. 74 
Trouble Recovery............................ 75 
Troubleshooting ............................  75
Temporary action in emergency ...  78 
Impact damage ............................... 78
Running single engine..................... 78
Replacing fuse ................................ 79
Power trim and tilt / power tilt will 
not operate .................................... 79
Water separator warning indicator 
blinks while cruising ...................... 80
Starter will not operate .................... 81
Emergency starting engine ............. 82 
Treatment of submerged motor ....  83 
Procedure........................................ 83 
						

							 
Table of contents 
Consumer information .................... 84 
Important warranty information for 
U.S.A. and Canada  ..................... 84
YAMAHA MOTOR 
CORPORATION, U.S.A.
 FOUR-STROKE OUTBOARD 
MOTOR
 THREE-YEAR LIMITED 
WARRANTY ................................ 86
IMPORTANT WARRANTY 
INFORMATION IF YOU USE 
YOUR YAMAHA OUTSIDE THE 
USA OR CANADA  ...................... 88 
						

							 
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. 
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. 
EMU25221 
Emission control information 
EMU25230 
North American models 
This engine conforms to U.S. Environmental
Protection Agency (EPA) regulations for ma-
rine SI engines. See the label affixed to your
engine for details. 
EMU31560 
Approval label of emission control certif-
icate 
This label is attached to the bottom cowling.
New Technology; (4-stroke) MFI 
1. Outboard motor serial number location 
1. Key number
1. Approval label location
ZMU04276
1 
						

							 
General information 
2 
EMU25262 
Manufactured date label 
This label is attached to the clamp bracket or
the swivel bracket. 
EMU25272 
Star labels 
Your outboard motor is labeled with a Cali-
fornia Air Resources Board (CARB) star la-
bel. See below for a description of yourparticular label. 
EMU25280 
One Star—Low Emission 
The one-star label identifies engines that
meet the Air Resources Board’s 2001 ex-
haust emission standards. Engines meeting
these standards have 75% lower emissions
than conventional carbureted two-stroke en-
gines. These engines are equivalent to the
U.S. EPA’s 2006 standards for marine en-
gines. 
EMU25290 
Two Stars—Very Low Emission 
The two-star label identifies engines that
meet the Air Resources Board’s 2004 ex-
haust emission standards. Engines meeting
these standards have 20% lower emissions
than One Star-Low-Emission engines. 
1. Manufactured date label location
ZMU04277
1
ZMU04776
ZMU01702 
						

							 
General information 
3 
EMU25300 
Three Stars—Ultra Low Emission 
The three-star label identifies engines that
meet the Air Resources Board’s 2008 ex-
haust emission standards. Engines meeting
these standards have 65% lower emissions
than One Star-Low-Emission engines. 
EMU25362 
 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 ofthe 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
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 cord
to a secure place on your clothing, or your
arm or leg while operating. If you acciden-
tally leave the helm, the cord will pull from
ZMU01703
ZMU01704 
						

							 
General information 
4 
the switch, stopping the engine. 
 
Know the marine laws and regulations
where you will be boating—and obey
them. For basic boating rules, see “Rules
of the road” on page 5. 
 
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.
Be informed about boating safety. Additional
publications and information can be obtainedfrom many organizations, including the fol-
lowing: 
United States Coast Guard 
Consumer Affairs Staff (G-BC)
 Office of Boating, Public, and Consumer Af-
fairs
 U.S. Coast Guard Headquarters
 Washington, D.C. 20593-0001
 Boating Safety Hotline: 1-800-368-5647 
National Marine Manufacturers Associa-
tion (NMMA)
 
401 N. Michigan Ave.
 Chicago, Il 60611 
Marine Retailers Association of America 
155 N. Michigan Ave.
 Chicago, Il 60601 
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 
while engine is running.
ZMU04275