Hello Tom. I am not a snowmobile expert by any means. I did purchase a new Yamaha VK540 snowmobile this year for a utility/ fishing snowmobile. I did a lot of research and most people I talked to said this is a bulletproof snowmobile and engine. I only have 34 miles on mine so very little use but I like it so far. It has a 20 inch wide x 156 inch track with 1.5” lugs. Not sure if you are looking for a 4 stroke or 2 stroke? I went 2 stroke based on my needs and the fact that I won’t put a ton of miles on it trail riding. The snowmobile has high, low, and reverse. This is the same sled that Aaron uses on Uncut angling also if you watch any videos of his.