Trim gauge

Discussion in 'Bubba's Outboards' started by droptine77, May 3, 2008.

  1. droptine77

    droptine77 New Member

    Anderson, SC
    The trim gauge for my boat has not worked since I have owned this boat and was wondering is it comman for the gauge or the sending unit to go bad? I know the sending unit seems to move feely and looks ok. It is a 1989 88hp Johnson. Thanks...
  2. Bobpaul

    Bobpaul New Member

    Supply NC
    Between the wiring, gauge, or sending unit, it could be anyone of them.

    Be sure you have 12v to the gauge, and a good ground. Be sure the ground to the sending unit is making good clean contact. Trim the motor up and lock it. Test the trim lead at the gauge for voltage (White wire with a tan stripe). The voltage should vary as someone moves the sending unit arm.

    Process of ellimination.