Snowmachine. Air cooled. I rode trails hunting and ice fishing on a 500 Polaris and my Artic Cat 440 Bearcat. Look for a long track machine. Older machines are pretty simple to keep running and work on. I really liked my Bearcat, it was slow but reliable and pretty much unstoppable if you were doing work or trail type riding and not trying to high mark or mountain ride in 8 feet of fluffy snow.
