I have a set that came off a running bike. I couldnt get them set right, but I havent mastered those carbs yet. I replaced them with a set of 34s that I knew were tuned and synced. Only thing I can see is maybe a PO overtightened the throttle plate shafts (?) so the plates dont center perfect in the carb body when its tightened down. Could probably be shimmed but I didnt have anything that thin....Need float bowl gaskets also....Other than that they are meticulously clean. If youre interested make an offer...
Craig