I am having problems with no spark. Everything seems to be in working order and after talking with the marina I don't think its my coils but rather the black leads coming from the key switch that shut down the motor. They go to a vacuum switch and to the coils Also. I am not sure about the timing of the magnet that passes the coils. It is just past the coils when the contacts open is this right? Any help would be great. I was able to get a manual from the library but the only one they had was for up to 1970. Don't think it helps much.