We have a 79/80 vintage Intruder that was assembled from the ground up from parts. When we first put it together it would run fine cold, idle high warm and not shut down when warm. After some inspection we found that due to a bad engine ground we fried the stator ground wire when using the electric start.
It now has new stator plate and runs and starts fine. However the tach will not register. Swapped in a different tach today with the same results. And, it almost seemed like the needle would go down very slightly when the engine was running. thoughts?