My 20 year old Wolverine is still kicking ass in snow. I had to take apart the carb last fall and clean everything. It wasn't easy, but it runs beautifully now... most of the time.
I think I may have a thermostat problem. I have no issues whatsoever when plowing, but I also never get out of 2nd gear or go faster than a few MPH. However, the last time I ran it at about 30-35 MPH for a few minutes, everything bogged down. It barely crawled home, but the overheat light never came on. I'm not really concerned since it does just fine plowing and I never take it on extended excursions anymore.
Here she is. Those are the original tires and they are filled with plugs. I need new tires.