2008 Yamaha Outboard 25 25hp Boat Motor Owners Manual

Specifications and requirements
ler for a smaller operating load and a smaller
pitch propeller for a heavier load. If you carry
loads that  vary  widely, chose  the propeller
that lets the  engine run in  the proper range
for your  maximum  load but  remember that
you may need to reduce your throttle setting
to  stay   within   the  recommended   engine
speed range when carrying lighter loads.
For instructions on propeller removal and in-
stallation, see page 62.
EMU36360
Fuel requirements
EMU36781
Gasoline
Use a  good quality gasoline  that meets the
minimum octane rating.  If knocking or ping-
ing occurs, use a different brand of gasoline
or   premium  unleaded   fuel.   Yamaha   re-
comends  that   you  use   alcohol-free  (see
Gasohol) gasoline whenever possible.
Recommended gasoline:
Regular unleaded gasoline with a min-
imum Octane rating of 86 (Pump Oc-
tane Number) = (R+M)/2
x
-
2 3
1
ECM01981
NOTICE
q
Do  not  use  leaded  gasoline.   Leaded
gasoline can seriously damage  the en-
gine.
ZMU04605
q
Avoid getting  water and  contaminants
in the fuel tank.  Contaminated fuel can
cause   poor   performance   or   engine
damage.  Use only  fresh  gasoline that
has been stored in clean containers.
1
2.
3.
. Propeller diameter in inches
Propeller pitch in inches
Type of propeller (propeller mark)
EMU25770
Start-in-gear protection
Gasohol
Yamaha  outboard  motors  or   Yamaha-ap-
proved  remote  control  units  are  equipped
with start-in-gear  protection  device(s). This
feature permits the engine to be started only
when it  is in  neutral.  Always select  neutral
There are two types of gasohol: gasohol con-
taining  ethanol  (E10)  and  that   containing
methanol. Ethanol can be used if the ethanol
content does  not exceed  10% and  the fuel
meets the minimum octane ratings. E85 is a
fuel containing 85% ethanol and must not be
used  in  your  outboard  motor.  All  ethanol
blends  containing  more than  10%  ethanol
can cause fuel system damage or cause en-
gine starting and running problems. Yamaha
does  not   recommend  gasohol  containing
methanol because it  can cause fuel system
damage or engine performance problems.
It is  recommended that you  install a  water-
separating  marine  fuel  filter assembly  (10
before starting the engine.
EMU25651
Engine oil requirements
Recommended engine oil:
YAMALUBE 2-stroke outboard motor
oil
If the  recommended engine oil  is not  avail-
able,  another  2-stroke  engine  oil  with  an
NMMA-certified TC-W3 rating may be used.
16
Product Specification
CategoriesMarine, Yamaha Outboard Manuals
Document TypeBoat Motor Manual Free Download. Marine Operator's Boating Guide.
Tags
Model Year2008
Download File
Please Enter the Security Characters Shown Below. Letters are Case Sensitive. Your download link will appear upon completing this step.
- 86 pages
LanguageEnglish
Product BrandYamaha Motor. Yamaha Motor Corporation, USA - Support Customer Relations for US: 1-800-962-7926
Yamaha Boats: 1-800-962-7926
Yamaha Outboard Customer Relations: 1-866-894-1626 , Yamaha Outboard
Document File TypePDF
Publisheryamaha-motor.com
Wikipedia's PageYamaha Motor Company
CopyrightAttribution Non-commercial
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