Ive just bought a 99 rsv, got it home and there is a whirring noise coming from the left hand side of the bike, which goes away when i pull the clutch in. Checked the trust bearing in clutch and its fine. Also when pulling away i can here a clunking noise sometimes from left hand side again?? The guy i bought bike from said the sprag had just been replaced. Anyone have any ideas??? Cheers.