[77newell]

I don't know what exactly is going on, but my betting self is saying the shutoff is being driven by something getting hot, this is consistent with the inability to restart right away (until things cool off). If your Gen has the Perkins engine then I would be looking at the shutdown solenoid since it is located n the engine. Afterit shuts down holding the solenoid linkage in the run position will tell you whether it is a fuel ptoblem or an electrical one as Gordon pointed out.