First of all this site is awesome. I am glad I found this site. Let me get back on topic. For Christmas my gift to my father was to fix up his 031av, and while dredging through e-rape I found a 031 quick stop at a decent price. My reasoning behind purchasing the saw is that if its junk its just one more parts saw for his. The question I have for you all is for the quick stop. I have cleaned out the carb, it idles but the sprocket turns while idling. You put a bar and chain on it and it will not turn the chain. Sounds like to me its the isolating clutch, anyone else agree? The twist here is I don't have the brake kit for the saw on the sprocket cover for the saw. Can that be causing a problem? I wouldn't think so but who knows. If anyone have a quick stop brake kit and lever for sale I would be happy to buy it. P.s his saw was a real project but its turned a corner and just waiting on baileys to send the ring kit, and piston clamps and its ALIVE!!!!!