well the chain chain never locked because i would have felt it skid, it just split at the master link and when i looked at the chain the clip had popped out and the master link was sitting on the ground bent. so obviously the chain was to tight and when it shot, it gunckd up in the front sprocket and mabe that messed something up in the primary drive area because i revved it up a little when it happened thinking it was stuck or something.... :yucky: