Yamaha F 25 Manual

F2.5
OWNER’S MANUAL
LIT-18626-07-04
69M-F8199-15
U.S.A.Edition 

ZMU01690
Read this owner’s manual carefully before operating your outboard motor.
U69M15E0.book  Page 1  Wednesday, April 5, 2006  4:48 PM 

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...

Table of contents
General information .......................... 1
Identification numbers record ..........  1
Outboard motor serial number ...........  1
Emission control information ...........  1
North American models ......................  1
Star labels ..........................................  2
Safety information ...........................  3
Important labels...............................  4
Warning labels....................................  4
Caution...

Table of contents
Cleaning and anticorrosion 
measures ......................................  33
Cleaning the outboard motor ............  33
Checking painted surface of motor...  34
Periodic maintenance....................  34
Replacement parts ...........................  34
Maintenance chart ............................  35
Maintenance chart (additional) .........  36
Greasing ...........................................  36
Cleaning and adjusting spark plug ...  36
Checking fuel system...

General information
1
EMU25170
Identification numbers recordEMU25183Outboard 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.
EMU25221
Emission control informationEMU25230North American models
This engine conforms to U.S. Environmental
Protection...

General information
2
EMU25272Star labels
Your outboard motor is labeled with a Califor-
nia Air Resources Board (CARB) star label.
See below for a description of your particular
label.
EMU25280One 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...

General information
3
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 of
the outboard should be...

General information
4
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 during
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 cor-
rect processing of empty containers, con-
sult the dealer where you purchased the oil....

General information
5

Turn the fuel cock to the “closed” posi-
tion.

Tighten the air-vent screw on the fuel
tank cap.
EMU25465Caution labels
EMU25482Label
CAUTION:
ECM01201
Store the engine only as shown.
Otherwise, engine damage could result
from leaking oil.
EMU25500
Basic boating rules (Rules of 
the road)
Just as there are rules which apply when you
are driving on streets and high ways, there
are waterway rules which apply when you are
driving your boat. These rules are used inter-
nationally, and...