I got an 09 850XP the first time i took it out the engine light came on 5 times and would run horrible for a couple seconds and the run ok some times when changing gears, happened when the motor was cold and hot. brought it in and they said fouled a plug and they put two better plugs in. The next time we take it for a ride i let warm up because that is what the dealer says to drive 500ft and dose it again then half way on the ride popped a couple wheelies and then the engine light came on and would not register a speed until i restarted the machine. the quad only has 200 km and like 10hrs did i get a lemon????