1997 Johnson Evinrude "EU" Accessories Service Manual, P/N 507270, Page 116Get this manual
Trim Sending Unit Adjustment 1Tilt the engine and engage the mooring bracket[] 2Temporarily, install PIN 387278 thrust rod in the No.3 hole
rn 3Loosen thebesending unit screws until only snug, so the pivotedsending unit can
4Disengage the mooring bracketLower the engine against the thrust rod5Observe the trim gaugeIf the needle does not show center positiontilt the engine up and adjust the sending unit by pivoting it up or down6Lower the engine against the thrust rod to verify adjustmentRepeat Step 5, if necessary