Re: Steering Trim Tab
This came out of my merc service manual.<br /><br />Trim Tab Adjustment<br /><br />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 to 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<br />the anti-ventilation plate approximately 2 inches<br />(50mm) or more above the boat bottom. Operate your boat at normal cruising speed, trimmed to desired position. Turn your boat left and right and note the direction the boat turns more easily.<br />If adjustment is necessary, loosen trim tab bolt and make small adjustments at a time. If the boat turns more easily to the left, move the trailing edge of trim tab to the left. If the boat turns more easily to the right move the trailing edge of trim tab to the right. Retighten bolt and retest.<br /><br />If your boat is pulling to the right or Starboard you will want to move the trailing edge of the trim tab to the right.<br /><br />SingleShot
