I just bought a s2k 2001. the guy told me that whoever installed stage 2 clutch did not properly grease it enough so that at the idling, there is a kind of knoicking sound. It goes away when I put on clutch even slightly. So, he says that it's just a grease problem. can anyone help? I need to know before I take it to a shop.

Also, the air noisy was too loud when I was traveling at 50 mile/h or above. Is it normal? It was very lous and I was thinking that I need to seal somewhere in the top or something...

thanks guys...