I can only find one fuel filter on my 1974 Newell (1160 CAT). It's the spin on Napa # 3551 (I think that's the right#) and I have changed it many times. I'm using fungicide product to rid the tank of bugs.
But, I can't believe there's only one filter. Is there another one? If so, where is it?
Help? (someone's gotta know. like John????)