33
Routine Service
Adjustments
2
Trim Limiter Rod
The trim limiter rod prevents excessive trim down.
As the engine is trimmed to the full down position,
the bow of the boat goes deeper into the water.
• If the trim limiter rod is left out, the bow could
plow into the water causing the boat to “bow
steer” resulting in a loss of control.
• If the trim limiter rod is set too far out, the pro-
peller could ventilate, resulting in poor accelera-
tion when the boat is coming onto plane.
Set the trim limiter rod to prevent excessive trim
down and provide good acceleration. The trim lim-
iter rod can be used to prevent the gearcase or
spray deflector from contacting the transom.
Trim Tab Adjustment
A propeller will generate steering torque when the
propeller shaft is not running parallel to the water’s
surface. The trim tab is adjustable to compensate
for this steering torque.
IMPORTANT: A single trim tab adjustment will
relieve steering effort under only one set of speed,
outboard angle and load conditions. No single ad-
justment can relieve steering effort under all condi-
tions.
If the boat pulls to the left or right when its load is
evenly distributed, adjust the trim tab as follows:
• With the remote control in NEUTRAL and the
engine OFF, loosen the trim tab screw.
• If the boat pulled to the right, move rear of the
trim tab slightly to the right.
• If the boat pulled to the left, move rear of the
trim tab slightly to the left.
Tighten the trim tab screw as follows:
• 40 – 90 HP: 35 to 40 ft. lbs. (47 to 54 N·m).
Test the boat and, if needed, repeat the procedure
until steering effort is as equal as possible.
Outboards with High Transom Heights
The trim tab may be above the surface of the
water when the outboard is trimmed out. Steering
effort might increase. Lower the trim setting to
submerge the trim tab and to reduce steering
effort.
Dual Standard Rotation Outboards
Move both trim tabs equally and in the same
direction.
Dual Outboards, One Counter and One
Standard Rotation
Set both trim tabs to the center position.
WARNING
When the outboard is returned to the cus-
tomer, the trim limiter rod must be installed
and in the same location as it was when the
motor was brought in for service. Leaving the
trim limiter rod out, or changing the adjust-
ment, could allow the motor to unexpectedly
trim in too far and cause loss of control.
WARNING
Improper trim tab adjustment can cause diffi-
cult steering and loss of control.
1. Trim tab screw
COA3663
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