I have a customer with an Olympian generator, model G25F1S.
Last year I had an issue with it starting up and immediately overspeeding and then shutting down. I found that the electronic governor control linkage was sticking. Now it starts hard due to low speed and then ramps way up and runs to fast, it pegs the frequency meter.

My question is, anyone know what caused this?? I am going to assume it is the electronic governor, but don't want to assume. Any links to some good troubleshooting charts?