Things ive noticed with this kit so far. My decompression valve seems to be getting stuck open. Have to actually pull it closed. Think im gonna plug it. Running a pretty thick base gasket and ive noticed the piston has tapped the spark plug a bit. Perhaps I over tightened the jug. No air leaks and ive got a gray plug on a dellorto 78 jet. Spittin up gas I dont get why its lean. One thing I will say is my clutch is holding up well. I think this is the longest ive gone without slipping after a rebuild. Perhaps those clutches work better under high RPMs.