Onan Marquis 5000 quits after a while?
I have a BGM series Onan Marquis 5000 which fires right up. After about 20 minutes it just randomly dies. Then it won't start for 10 minutes or so then will fire up again. Sounds weird, but it seem...
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This may sound crazy, but it doesnt cost anything and only takes a couple of minutes. My Onan 4000 Gen did the same thing. There is a lever on the carburetor, mine says altitude, but whatever it says, raise if up some. Took care of my problem and now it will run 48 hours without shutting down. Would shut down every 20 mins before I did this. Makes no sense but it worked for me. Good Luck
