1979 Johnson 115HP
Cadet
- Joined
- Jun 28, 2011
- Messages
- 8
We are trying to hook up the Tach in our 1979 Johnson 115hp motor... there are 3 wires that come out of the back of the tach and i'm not sure where they all go to...Can anyone please help we are about to go out to the lake and just got a new prop and want to make sure it running right. also there is a wire comeing from the back that is hooked to a screw assuming for the ground where does it go? I'm a woman so please dont laugh.... we have been working on the wiring in the boat and just want to make sure we get it all right.... Thanks! 
