All I can say is that my 2009 800 Dragon, 2009 800 IQ had a few problems but never a burn down motor for the year 1,400 on the 800 IQ, 780 miles on the Dragon, both run great. It all comes down to the dealer. I deal with one of the best in Wisconsin, and one of the best in Il.
Like I said before I have had Ski-Doo but the dealers closed down years ago, and I could not find a good dealer to take care of me. One of friends tried Artic Cat 2 new sleds blew the motor the next day none of the dealers wanted to bother fixing it. He switched back in 2 years to Polaris. Polaris needs to get there 800 motor right, but they backed the motor and fixed the problem. It's a gamble on any brand. One guy had a new Ski Doo 1000 it blew up North of Pine Lake lodge. Another one a new Ski Doo 800 blew up south of Mercer.
I have seen 8 from all four brands go down this year 3 Artic Cat, 2 Ski doo, 2 Yamaha, and 1 Polaris Dragon, more than the last 5 years. I think none of the 4 brands have the mapping perfect and the fuel injection has some problems, in years ago with the carbs we never had problems with the sleds braking down a lot or blowing motors all the time.
It also seems to be with the gas in the UP from my Dealer in Wisconsin 3 out 12 blew up there motors, the 3 that went to the UP all went down that same day.
Same thing with the dealer in Il the owner and his friend blew up both 800's the same time in the 3 day weekend.
Since the rebuild they have not have had too many problems in the UP.
I only go to certain gas stations each year to many problems with bad gas all over the states even Wisconsin and Il, but the biggest problem is the UP.