Onan generator problem
I've got a 1999 Jayco class "C", with a Onan 4000 generator. Runs off the vehicle gas tank. My problem is that it runs for about 15-20 minutes, then conks out, with no load put on it. It will not immediately restart from a warm engine status. Let about six hours pass, then I can start it again for same time frame. I tried putting a small load on it last week (just 3 interior lights), and it stops after just a couple of minutes. Starting it is not the problem, but running past 20 minutes is. Any suggestions ?