Im working on an Onan Gererator for a machinest frient of mine, he does machine work for me, I do tractor work (or try to anyway) for him. Anyway, he traded for a non running generator, that I've managed to get running, but only as long as you hold in the start switch. Seems to me there should be some type of holding relay to keep it running once it starts, but it won't. There are 2 small relays, one that feeds the coil, and the other one,,,,,?? There no model numbers on the unit so I've included a pic.