ah, that sucks...i have never worked on one of these bikes, i just bought it last week and it fires right up but i am doin a chopper project with it and want to get the top end apart and see how the chain tensioners look and clean up the valve and paint the motor, so hopefully it goes pretty smooth, i ordered a manual and gasket kit from my work and they should be here tomorrow....i think i am also gonna copy someones idea i saw on here and make and car engine stand into an xs650 ending stand so its not taking up room on my work bench....good luck on yours man, let me know what the sounds are.