you are right about the white smoke,it does smell like unburnt fuel. what i can not under stand is that i changed fuel filted,drained fuel lines, took all air out of every thing then drove it around yard for about 5 minutes, worked fine till i started up a small grade and it started all over again...Right now I came down with part of the flu and I do not feel like working on it..thanks, I will let you know when I get back at it..