I finally got to ride this past week, only 80 miles, but it was awesome! My overheat light came on while it was idling so I shut it off for a bit. Later that day it came on again ( idling) so for the hell of it I started riding some more. After a minute or so, the light went out and didn't have the problem again.
Also had ice buildup, but I'm bringing a rubber mallet w/ me to knock it out when we take breaks.
All in all I love this sled. I've only been riding 3 years, went from a 2000 MXZ 700 to this, waaaaay more comfortable, easier to steer, plenty of power for the riding I do.