I have a ttr125 L. Just put a new chain and sprockets on. Factory sprockets and DID gold series non O-ring chain. It seems like after every ride I have to adjust the chain. What gives? I have never experienced this before. I have always ridden street bikes and never had this problem. Is there some initial stretch to this chain before it finds its happy spot? Right now there is only 3 - 1 hour rides on it.