going down a hill and go to get back on the gas a hole lot of rpm and a loud clunk, at the shop twice they say it was cause of the updates!!!! they did updates and it still happens. a buddy is service manger at a cat shop and he told me that at a seminar with arctic cat they said a bushing is sticking and if this happens just replace the clutch under warranty no questions asked. butt of course in ab my dealer has no idea what im talking about butt they were at the seminar as well go figure !!! just wondering if any one else has the same clunk going on?