Anyone seen any issues with the chaincase on the xp. My buddy bought a new 09 and while we were up at togwotee on friday the chaincase started to make a slipping noise. The sled has a whole 70 miles on it and barely made it off the hill. By the time we got back to the truck the thing would barely make it up a small hill, it was slipping like crazy. Any suggestion. This thing also had the pull rope issue on the first ride out. Two rides on the new sled and bad luck both times. I hope this is not sign of whats to come. He had great luck with his 06 skidoo but is livid with this thing.