So i have a 2010 ktm 250 xc-w and rode for about an hour today before this rattle started, it sounds like it coming from the case some where but then i thought it might be the skid plate. So i took the skid plate off and i couldn't get the bike to make the noise again? so problem solved right?... the only problem is my clutch was acting wierd and the bike was warm when the noise occured. Im relatively new to the dirt bike scene so im not really positive on how quirky bikes can be. the rattle seemed to happen most when i was accelerating or letting the clutch out. bike has 40 hours on it about 720 miles... any ideas thanks!