Mercury 15 E, Manual

Page: 74 / 127

FEATURES & CONTROLS
64
Throttle Grip Turning Friction Adjustment
Turn the friction adjustment screw to set and maintain the throttle
at desired speed. Turn screw clockwise to tighten friction and turn
screw counterclockwise to loosen friction.
38388
a
b
a - Loosen friction b - Tighten friction
Trim Tab Adjustment
Propeller steering torque will cause the boat to pull in one
direction. This steering torque is a normal results from the outboard
not trimmed with the propeller shaft 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.
• Operate the boat at normal cruising speed with the outboard
set at the desired operating angle position. Turn the boat left
and right and note the direction the boat turns more easily.
• If adjustment is necessary, loosen the trim tab bolt and make
small adjustments at a time.
• After adjustment, securely tighten the trim tab bolt.
NOTE: Check for looseness of the bolt and the trim tab at regular
intervals. Due to corrosion, the trim tab will wear down over time.
IMPORTANT: The trim tab also acts as an anode to prevent
galvanic corrosion. Do not apply any paint, grease, or other
material to the surface of the trim tab.
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 in.) or more above the boat bottom.