Ok so my 2002 ktm 250sx is revving real high when idling. But if i turn on the choke it slows down to normal. Also, when i let out the clutch to start going it will slow down until i pull the clutch back in and then it starts revving real high. Someone told me it might be the clutch but i dont wan to waste money if i dont have to. Please help!! It pisses me off.