2007 Yamaha Outboard F250 LF250 Boat Motor Owners Manual

General information
damage the motor. Engine speed depends on
the  propeller size  and  boat  load.  If engine
speed is too high  or too low for good engine
performance, this will have an adverse effect
on the engine.
Yamaha outboard motors are  fitted with pro-
pellers chosen to perform well over a range of
applications, but there may be  uses where a
propeller with a different pitch would be more
appropriate. For  a greater  operating load,  a
smaller-pitch propeller  is more  suitable as it
enables the correct engine speed to be main-
tained. Conversely, a larger-pitch propeller is
more suitable for a smaller operating load.
Yamaha dealers stock a  range of propellers,
and can advise you and install a propeller on
your outboard that is best suited to your appli-
cation.
ZMU01710
EMU25700
ECM01060
CAUTION:
Battery requirement
Do not use a battery that does not meet the
specified capacity. If a battery which does
not meet specifications  is used, the elec-
tric  system  could  perform poorly  or  be
overloaded, causing electric system dam-
age.
For  electric start  models,  choose  a battery
which meets the following specifications.
x
-
2 3
EMU25711
Battery specifications
1
Minimum cold cranking amps
(CCA/SAE):
512.0
Minimum marine cranking amps
(MCA/ABYC):
675.0
Minimum reserve capacity (RC/SAE):
A
ZMU04607
1.
2.
3.
Propeller diameter in inches
Propeller pitch in inches
Type of propeller (propeller mark)
A
182
minutes
NOTE:
NOTE:
Select a propeller which will allow the engine
The engine  cannot be started if  battery volt-    to reach the middle or upper half of  the oper-
age is too low.
ating range at  full throttle with the  maximum
boat load. If operating conditions such as light
boat loads then allow the engine r/min to rise
above the maximum recommended range, re-
duce the  throttle setting  to maintain  the en-
gine in the proper operating range.
EMU25742
Propeller selection
The performance of your outboard motor  will
be critically affected by your choice of propel-
ler, as an incorrect choice could adversely af-
fect  performance  and  could  also  seriously
10
Product Specification
CategoriesYamaha Outboard Manuals
Document TypeBoat Motor Manual Free Download. Marine Operator's Boating Guide.
Tags,
Model Year2007
Download File
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- 90 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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