justinbmurphy
Cadet
- Joined
- Mar 31, 2006
- Messages
- 12
i just installed a brand new teleflex tach for outboards on my 1982 mariner 70hp. i used all new wiring, heat shrink connectors and ring terminals, i have a good ground and all other gauges work properly, however, when i run the motor the tach will smoothly increase to 6000 rpm when the boat is half throttle, also it will go down when i increase the throttle and it is very erratic at other points. i have searched this forum and all i can find is to clean terminals, is it possible that i could have a frayed wire in the original harness? any ideas would be great, thanks everyone.