Everyone keep a close eye on your chain tension. I threw mine and busted the crap out of my case. Kaw is going to warranty, but i also work for a dealership. Guess I'm goin to find out what these things are made of. When i called for warranty they had me measure the chain deflection, and the torque at which the carrier bolts broke loose at, which were all different. I'm not sure if this will be a continueing problem or not. My engine is a pretty early serial number as is my frame: engine 153, frame 022. Just thought i'd give the heads up.