Mercury 4C Instruction Manual page 59

Arrange passengers and load in the boat so the weight is
distributed evenly.
The trim angle is adjusted by setting the trim position pin in the
correct trim position.
TRIM POSITION ADJUSTMENTS
•
Correct trim: The trim angle is optimum when the boat is
parallel to the water surface while running.
•
Trim down: If the trim angle is excessive, the bow will rise
out of the water and the speed will decrease. Furthermore,
the bow may sway or the bottom may slam the water while
cruising. In this case, decrease the trim angle by setting the
trim position pin in a lower position.
•
Trim up: If the trim angle is too small, the bow will enter the
water, the speed will decrease, and water may enter the
boat. In this case, the trim angle should be increased by
setting the trim position pin in a higher position.
a - Correct trim
b - Trim down
c - Trim up
d - Move pin to raise bow up
e - Move pin to lower bow down
f - Trim position pin
eng
FEATURES AND CONTROLS
a
b
c
f
e
d
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