Adjusting Trim Angle For Manual Tilt Models; Adjusting Boat Trim - Yamaha F4 Owner's Manual

1. Trim operating angle
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Adjusting trim angle for manual tilt
models
There are 4 or 5 holes provided in the clamp
bracket to adjust the outboard motor trim an-
gle.
1. Stop the engine.
2. Tilt the outboard motor up, and then re-
move the trim rod from the clamp brack-
et.
3.
To raise the bow ("trim-out"), move the rod
away from the transom.
To lower the bow ("trim-in"), move the rod to-
ward the transom.
1
Make test runs with the trim set to different
angles to find the position that works best for
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your boat and operating conditions.
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G
G
G
NOTE:
The outboard motor trim angle can be
changed approximately 4 degrees by shifting
the trim rod one hole.
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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
1
1. Trim rod
Reposition the rod in the desired hole.
WARNING
Stop the engine before adjusting the
trim angle.
Use care to avoid being pinched when
removing or installing the rod.
Use caution when trying a trim position
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.
Operation
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