bOb shingler
Well-Known Member
you have a lean missfire. make sure you have the vacuum secondary diaphams tied together. stock jetting for now. stock squirter. used the green pump cam in both carbs, set thier clearance at .016" with the throttles wide open. for some reason this set up works on several of the motors i have built using tr, even with different size carbs. please give it a try.