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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One other thing to check is the switch on the carburator that has a winter/summer selection. The winter setting preheats the intake air, and could cause vapor lock in warm weather. During the late spring/summer it needs to be on the summer setting. HTH.
