Maybe someone can help me. The pevious owner of the boat wasn't concerned with the temp. guage, so he unhooked it or whatever. Well the wire is not there for me to reconnect it. I've tried to trace the wiring from the motor to the instrument panel to figure out which one it is but, it all gets lost in translation somewhere. The motor is an '83 Johnson 150. The boat is an '83 Skeeter Starfire 175. Can anyone help me on what I need to do to hook this back up? Oh yeah, if you have a boat like this, what size prop are you running on it. Thanks a bunch. Iboat forum is awesome.