Adjusting Trim Angle; Adjusting Boat Trim - Yamaha F25D Owner's Manual

Operation
EMU27881

Adjusting trim angle

Power trim and tilt models
EWM00750
WARNING
Be sure all people are clear of the out-
G
board motor when adjusting the tilt an-
gle, also be careful not to pinch any
body parts between the drive unit and
clamp bracket.
Use caution when trying a trim position
G
for the first time. Increase speed gradu-
ally and watch for any signs of instabil-
ity or control problems. Improper trim
angle can cause loss of control.
Use the power tilt switch located on the
G
bottom engine cowling (if equipped)
only when the boat is at a complete
stop with the engine off.
Adjust the outboard motor trim angle using
the power trim and tilt switch.
1. Power trim and tilt switch
40
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.
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.
UP
DN
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