I now own a 2000 XR650R bought new in late 2002. Had the power up mod done to it. airbox mod, jetting and exhaust mod done to it. How do you check the oil level? slight knocking at very low rpms when cold but goes away when warm. teested it in the parking lot where we met. Power is very good and rivals my CRF450R I traded for it but is very controllable compared to the CRF450R. Ok guys. Lets hear the good and the bad of the 2000 model and what changes were made in the newer years. Anything I should look out for? oil change intervals, valve adjustment interval. ANything and everything you can tell me would be GREATLY Appreciated.