I noticed today that there is some play in the clutch arm on my 2004 KX250. It moves maybe 1/8 inch up out of the case. No side to side movement and the clutch seems to be engaging fine. I tried taking the clutch basket out and looking at things but everything seemed to be okay. Maybe I'm not looking for the right things?

Any idea as to why this may be happening?

Thanks for the input!