4000 onan

What is the fuel level in the motorhome fuel tank.

full

OK have you changed the fuel filter for the generator?

checked air filter looks new

Not the air filter, the fuel filter

where is the fuel filter no book on it

Usually it's in the fuel line, could be an in line type or a canister style. Make sure you follow the fuel line and you should find it. It's not the oil filter on the ehgine

I don't have book on 4000 onen where is the fuel filter

You may have to follow the fuel line from the carb back but usually it's in the same compartment as the generator

thanks if it ever cools down in Bakersfield ill have a look thanks jim