I have a2013 kx450 it has about 15 hours on it I was riding yesterday and I noticed that when I was up in fourth gear and downshifted to second gear. While the clutch was still in. It sounded like, the clutch was squealing. Almost like something inside was slipping or rubbing. Then I would switch gear and go back and it would be gone. Just wondering if anyone has had this problem or any ideas on what it could be.