hi, I continue to have issues with my tach and fuel guage. Start up, both work ok,,, then at high rpm +3000 both tach and fuel gauge will peg below 0 and below e. If I kill motor and re-start, all will test ok. Just installed rebuilt power head and new rectifier. Used to have trouble before I went through motor rebuild. and also replaced tach. Once again, wires and connectors are getting corroded,,, so repairing alot of wiring at harness near gauges. Thank you,,, , Joe