1993 Johnson Evinrude "ET" 60 degrees LV Service Manual, P/N 508286, Page 211Get this manual
Trim Tab Adjustment The boat may be slightly easier to steer in one direction or the other due to steering forces or other reasons To check this, run the boat in straight line with balanced load in an area where current and wind will not be factorA single trim tab adjustment will relieve steering effort under only one set of speed, trim, and load conditionNo single setting can relieve steering effort under all speed, trim, and load conditions1Turn the steering wheel in both directions to determine the direction that requires the least amount of steering effort2Loosen the trim tabIf the boat: pulled to port, move the rear of the trim tab to port pulled to starboard, move the rear of the trim tab to starboard f11 3Reference numbers, thru 6, are embossed on the trim tab for ease of adjustmentAlign the reference number with the recessed screw or the embossed line4Tighten trim tab screw and recheck steering effort in both directionsRepeat procedure until steering effort is equal in both directions5After final adjustment, tighten the trim tab screw to torque of 35-40 ftIbs(47-54 Nm)