250-500cc 09 wr300 clutch noise

My clutch is making a ton of noise. Any ideas as to what would cause it? When I pull in the clutch lever, it goes away, so I know it's the clutch making all that racket. I ordered new plates and springs, and they are on the way. Just wondering what else I should look for/at when I open it up later this week. Anyone else have this problem and found the cure? Thanks.

Loose bolts and play in the clutch bushing....maybe a chipped gear tooth?

Well, i am a dumbass and broke my clutch hub. I snapped off one of the stems that the bolts go into. I was thinking of replacing the whole thing, basket, hub and pressure plate. But i cant seem to find anything other than oem. Does anyone make an aftermarket clutch for an 09 300?