2005 Yamaha Outboard 40D 50D Boat Motor Owners Manual

Operation
motor greatly affects the water resistance. If
the  mounting height  is  too high,  cavitation
tends to occur, thus reducing the propulsion;
come loose due to engine vibration.
EWM00640
WARNING
and if the propeller tips cut the air, the engine   Loose clamp screws could allow the out-
speed will rise abnormally and cause the en-    board motor  to  fall  off  or move  on  the
gine to overheat. If the mounting height is too   transom. This could cause loss of control
low, the  water resistance  will increase  and     and serious  injury.  Make sure  the  tran-
thereby reduce engine efficiency. Mount the     som screws  are tightened  securely. Oc-
outboard  motor  so  that  the  anti-cavitation    casionally check the screws for tightness
plate is  in alignment with  the bottom  of the    during operation.
boat.
ZMU02012
ZMU01762
2.
If the engine  restraint cable attachment
is equipped  on your  engine, an engine
restraint cable or chain should be  used.
Attach one  end  to the  engine restraint
cable attachment and the other  to a se-
cure mounting point on the boat.  Other-
wise the engine could be completely lost
if it accidentally falls off the transom.
NOTE:
q
The optimum  mounting height of  the out-
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 31.
q
EMU26970
Clamping the outboard motor
1.
Place  the outboard  motor on  the  tran-
som so  that it is  positioned as close  to
the center as possible. Tighten the tran-
som clamp screws evenly and securely.
Occasionally  check  the  clamp  screws
for tightness during operation of the out-
board  motor  because  they   could  be-
ZMU02013
3.
Secure the clamp bracket to the transom
using  the  bolts provided  with  the  out-
22
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.
- 77 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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