I did not kit the AM replacement carb, although I did completely disassemble several times and check it through, run the ports. The original Tillotson was kitted Grand idea. If was my saw, I would not have stuck an AM carb. Owner wanted, or at least pointed out, the cheap solution. When I get time, I am going to pull the AM carb, swap the throttle shaft back over to the original Tillotson and try it again. That has a new carb kit in it, owner had purchased and installed. From looking at the needle lever, his kit appears to be typical AM chinese junk, so I may find a Tillotson kit and try again. Thanks to all. I will be back. My apologies for the slow progress, I am building a new welding business up and my time is not in my control most days.