1997 Johnson Evinrude "EU" 90 thru 115 90 CV Service Manual, P/N 507267, Page 267Get this manual
Trim Sending Unit AdjustmentConventional It might be necessary to adjust the trim sending unit to coincide with the trim gauge at full trim-up positionTo do this, proceed as follows: 1Turn ignition key to the ON position2Raise the engine with the tilt switch to maximum trim-up position3Move the angle adjusting rod
to the center hole
4Loosen the sending unit screws until only snug, so the sending unit can be pivoted5Lower the engine a" the way down against the angle adjusting rod