Re: help with my johnson 85hp 1969
Floyd.... That sensor on top of the block was a goof on OMC's part. The purpose of it was to automatically actuate the choke when the engine was cold. The problem was that some engines ran cool and the choke would stay half closed.<br /><br />OMC came out with a bulletin some time later with the following instructions.<br /><br />Pertaining to the sensor on top of the block, remove those two wires from the terminal strip and tape them away somewhere or cut them off at the sensor as it is no longer used.<br /><br />The choke solenoid has two wires, a purple/white and a purple/yellow. Connect both of those wires to the purple/white wire at the terminal strip.<br /><br />Hopefully that answers the question. Good luck.