First spend some time getting them in top shape, bearings, belt, plugs, carbs may need cleaning, jetting, check compression, clean/rebuild clutches if needed, etc... Nothing worse than spending a lot of money on new mods and then finding out you have a bad motor. How experienced are you riding sleds? Riding them as they are may be good advice for the first year. Learning how to ride a short track in the mountains will teach you a lot and you will get to know what you need the most for each sled. I rode my stock 141 MM all over the mountains here in Montana for 4 years and went most everywhere I wanted, just had to work a little harder than the longer tracks but I still had a blast. 151 tracks will be the most useful upgrade in my opinion. Pipes next. Tracks USA and Mountain Performance will be very helpful in the track extension department. I would look for used tracks here on this forum, I have had good luck finding what I need and in good shape. Good luck and get home soon, the snow is coming!!
