stina said:I've always thought the mixture screws only adjust the mixture on tickover and make little difference at higher revs , that being taken care of by needle profile :?: At least that's what i've read on here . I know all the needles have the same profile over the part of them that covers the tickover range :? Educate me someone
Think of it this way: If you richened the mixture to excess at idle by winding the jet tube down by 1/2" more than it should be (if that were possible) then all the way through the rev range the jet will be 1/2" lower than it should be. The lower the jet is relative to the position of the needle, the richer the mixture.