I live in N.E. Oregon where the population is sparse and the terrain is vast. I have been riding an 09 Ski-Doo summit 800(only sled I have ever owned). I got it new and it has been great until this year. It started lugging after a couple hours into each ride and I finally got it to throw a code (high engine detonation but the shop found nothing wrong). They said maybe wrong spark plugs but were not sure. I had them check coolant system, on top of checking the whole dang engine $400 later I got new spark plugs. Almost more frustrating as no snow for two weeks.