Trim Tab Adjustment - Mercury 8 User Manual

5. Raise the outboard to the tilt release position and gently lower
the outboard to the preset trim position.
a - Tilt lock knob in lock position
b - Tilt lock knob in unlock position
c - Tilt range indicator

Trim Tab Adjustment

Propeller steering torque will cause your boat to pull in one
direction. This steering torque is a normal thing that results from
your outboard not being trimmed so the propeller shaft is parallel
to the water surface. The trim tab can help compensate for this
steering torque in many cases and can be adjusted within limits to
reduce any unequal steering effort.
NOTE: Trim tab adjustment will have little effect reducing steering
torque if the outboard is installed with the anti‑ventilation plate
approximately 50 mm (2 inches) or more above the boat bottom.
FEATURES AND CONTROLS
a
b
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c
28587