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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Since I assume this is a gasoline generator, and looking in the manual for the 3600 Onan that I have, sounds like someone changed the spark plug with a non-resistor type. That will cause all kinds of strange behavior. Check your manual and get the correct resistor type sparkplug if you don't have it in the engine at this time. Manual says that non-resistor plugs generator RF energy which can cause strange behavior.
