Hi, I purchased a 2011 can am 500 last july and I love the machine. The ATV was a demo and had about 75 miles on it. They assured me the miles were put on it from plowing. However, at 350 miles I had to have the engine completely rebuilt, the power steering motor replaced, the throttle sensor replaced, and a wiring harness replaced. The dealer had told me there was a lot of dust and dirt in the engine which wiped everything out. I did put on about 100 miles on the machine in pretty dusty conditions. I was wondering if it's possible that the dust is what really caused the engine to fail...or if maybe the dealer did something before I took delivery of the machine. There are no aftermarket mods to it and I never took the air filter off. I rode in Jericho, Nh and I have ridden there for the past 7 years and never had a problem. This was the first year I took this atv up there and now all of a sudden I have a problem. There were 4 people in my group all riding in the same conditions and no one else had a problem. So did the dealer do something to this thing or are the can-ams prone to sucking in dirt? Lucky for me it was under warranty but I need to know if I'm going to have issues when I go back there. Thanks!