The boat may be easier to steer in one direction or the other do to steering forces
or other reasons. To check this , run the boat in a straight line with a balanced load.
in an area where current and wind will not be a factor.
A single trim tab adjustment will only relieve steering effort under one set of speed,
trim and load conditions . No single setting can relieve steering efforts under all speed,
trim and load conditions.
1. turn the wheel in both directions to determine the direction that requires the least amount
of steering effort.
2. loosen the trim tab . if the boat
If the boat pulls to port. move the rear of trim tab to port.
if the boat pulls to starboard , move rear of trim tab to starboard.
reference numbers, 0-6 are embossed on the trim tab for ease of adjustment.
aline the reference number with the recessed screw or the embossed line.
tighten trim tab screw and recheck steering effort in both directions.
repeat procedure until steering effort is equal in both directions.
mark the starting place of the trim tab . move it only a little at a time by the numbers.
not all the way like the man in this video says to do.
once finished final adjustment tighten the trim tab screw to a torque 120-144 in. pounds.https://www.youtube.com/watch?v=7gkaBQmsibE