2006 Yamaha Outboard 60 70 59 60hp 70hp 2st 1388 Boat Motor Owners Manual

Operation
UP
DN
ZMU03835
Bow Up
To raise the bow (trim-out), press the switch
(up).
To lower the  bow (trim-in), press the  switch
(down).
Make test  runs with the trim  set to different
angles to find the position that works best for
your boat and operating conditions.
Too much trim-out  puts the bow of the  boat
too high in the water. Performance and econ-
omy are  decreased because the  hull of the
boat is pushing the  water and there is more
air drag. Excessive  trim-out can also  cause
the propeller to ventilate, which reduces per-
formance  further,  and  the  boat may  por-
poise(hop in the water),  which could throw
the operator and passengers overboard.
NOTE:
To  adjust the  trim  angle  while the  boat  is
moving, use the power trim and tilt switch lo-
cated on  the remote  control device  or tiller
handle, if equipped.
EMU27911
Adjusting boat trim
When the boat is on plane, a bow-up attitude
results in less drag, greater stability and effi-
ciency. This is generally when the keel line of
the boat is up about 3 to 5 degrees. With the
bow up, the boat may have a greater tenden-
cy to steer to one side or the other. Compen-
sate for  this as you  steer. The trim  tab can
also  be adjusted  to  help  offset this  effect.
When the bow of the boat is down, it is easier
to  accelerate   from  a  standing  start   onto
plane.
Bow Down
Too much trim-in  causes the boat  to plow
through the water, decreasing fuel economy
and making it hard to increase speed. Oper-
ating with excessive trim-in at higher speeds
also makes the boat unstable. Resistance at
the bow is greatly increased, heightening the
danger of bow steeringand making opera-
tion difficult and dangerous.
36
Product Specification
CategoriesYamaha Outboard Manuals
Document TypeBoat Motor Manual Free Download. Marine Operator's Boating Guide.
Tags,
Model Year2006
Download File
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- 82 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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