2005 Yamaha Outboard Z250D Z300D LZ250D LZ300D Boat Motor Owners Manual

Operation
board motor is affected  by the boat/motor
combination  and  the  desired   use.  Test
runs  at different  heights  can help  deter-
mine the  optimum mounting height.  Con-
sult
your
Yamaha
dealer
or
boat
manufacturer for further information on de-
termining the proper mounting height.
For instructions on setting the trim angle of
the outboard motor, see page 40.
q
EMU27041
Breaking in engine
1.
Center line (keel line)
Your new engine requires a period of break-
in to allow mating surfaces of moving parts to
wear in evenly. Correct break-in will help en-
sure proper performance and  longer engine
EMU26930
Mounting height (boat bottom)
To run your  boat at optimum  efficiency, the
water resistance (drag) of  the boat and out-
board motor must be made as little as possi-
ble.  The  mounting  height  of the  outboard
motor greatly affects the water resistance. If
the  mounting height  is  too high,  cavitation
tends to occur, thus reducing the propulsion;
and if the propeller tips cut the air, the engine
speed will rise abnormally and cause the en-
gine to overheat. If the mounting height is too
low, the  water resistance  will increase  and
thereby reduce engine efficiency. Mount the
outboard  motor  so  that  the  anti-cavitation
plate is  in alignment with  the bottom  of the
boat.
life.
ECM00750
CAUTION:
q Failure to follow the break-in procedure
could  result in  reduced engine  life  or
even severe engine damage.
q Do not use premixed fuel in this engine
because it  could cause carbon  depos-
its on the fuel injector and engine trou-
ble.
q Follow   the   instructions  for   break-in
carefully.
NOTE:
Leave  the label  pictured  below on  the  top
cowling  until   the  break-in  procedure   has
been completed.  It  may be  removed after-
wards.
ZMU01762
NOTE:
q
The optimum  mounting height of  the out-
30
Product Specification
CategoriesYamaha Outboard Manuals
Document TypeBoat Motor Manual Free Download. Marine Operator's Boating Guide.
Tags, , ,
Model Year2005
Download File
Please Enter the Security Characters Shown Below. Letters are Case Sensitive. Your download link will appear upon completing this step.
- 87 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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