i want to block off oil injector cause it is putting to much oil in the quad pulled plug today and it had some oil on it so i want to mix the gas my self how would i get that done and how much would it cost and how do i do it. the quad is all stock from what i know not bored out stock pipe all stock got the quad yesterday the bike runs great but it smokes alot at full throttle and a little less then full throttle.