well three weeks later and the dealer finaly got my sled apart to find out what was wrong with the motor. The bolts holding the cam shaft on backed out and were hiting the cover and head. New parts are on order and they think yamaha will be covering the whole repair even though the sled was two months out of warranty. I asked what the repair warranty would be and they said 30 days. Our snow is melting fast and that 30 days won't do me any good. Have any of you had a simalar situation could you buy an extended warranty. what should I ask for. This sucks and Since our season this year was two months long and I lost 1 month I didnt have my sled for half the season.