So i have made several of these bikes. But this problem is getting anoyying with this build. After i pull in the clutch while coasting or getting ready to stop (obvs while engine is on) it revs half throttle (sounds high) then Slowly relaxes until it eventully dies. I adjust the idle screw and know how to use it. This does nothing, the carb needle is tuned to rich like all my bikes, only upgrade on this on is high performance cdi and some port work on the jug. Could this be an air leak near intake? It also takes slightly longer to start then my other bikes. Let me know what you guys think