I know this sounds strange but we have 2 650's both are 03. When I was working on one the other day I was turning the rear wheel and after about 2-3 turns it started turning real free I mean free enough to give it a spin and it would keep turning by it self. The other bike will not get that free even after several turns. The one that is easy to turn has about 3500 miles the other one has about 7800. If you try this I'm talking if the bike is totaly cold like over night. Also what year and milage.