Re: fuel lines
Reply #27 –
May show itself as a smooth idle but looses boost and power going on to the highway or in hills. Starting is worse after sitting overnight. Filter restriction usually starts and idles OK.
Air in the generator is indicated by having to open the "T" handled return valve to get the generator to run right. With the valve open, the fuel pump is able to return the air to the tank. Closed, the fuel pump can't push the air past the overflow/return valve. Not all generators have the hand valve.
Pierce