Im still having carb trouble out of my 85, 150 Yammy. Yesterday lots of gas started running out of the lower one so Im guessing its time to pull them apart and put a kit in them, the questions are, do the air mixture screws have a # of turns out setting, do the carbs have to be syncrinized when reinstalled? If so where can I get a syncronizer? There dosn't seem to be much to them, any tips would be helpfull.<br />Thanks<br />Gary