RV Repair: GENERATOR ( ONAN ), town cleaning, vapor lock

Question
GENERATOR STARTS BUT TURNS OFF AFTER ABOUT 3-5 MIN. WILL NOT START AFTER THAT. CK.FUEL AND FUEL PUMP SEEMS TOO BE GETTING FUEL.

Answer
Do you smell gas, like a rich situation?  Could be a loading up carb.  Could be vapor lock.  May be a good time to consider cleaning the carb.  I doubt anything electrical is wrong.  I had a snow blower did the same thing.  It was brand new, ticked me off.  It was the carb.  I pulled it all apart and cleaned it up.  Put it together.  Now starts and runs great.  Get some brake cleaner and go to town cleaning.