Riding
There are basically only three ways of riding a snowmachine. There is trail riding, racing and deep snow. Trail riding is the most boring thing you could possibly do on a snowmachine. All the rider does is sit on the snowmachine and do a little steering. Racing and deep snow riding are more preferable because they require skill to beat the competition or to prevent the snowmachine from becoming buried under several feet of snow. Riding in deep snow is a very fun and requires hard work. This is where having a good track, a big engine, and decent skis will improve your ability to float on top of the snow as well as providing traction and steering.
www.kpbsd.k12.ak.us/solmid/students/studentwp/2008/church_2nd/davidwebpage17/album/snow/pages/02snodeep800rmk_actnxx_jpg.htm
With a big engine and a long track, which provides more surface area, a rider can stay on top of the snow and make it to the top of hills and steep mountains.
http://www.highmtntours.com/polaris1.jpg
With too small of any of these requirements, a rider is bound to get stuck and it is not fun to dig out a buried snowmachine.
http://www.snowmobile-canada.com/alice_stuck.jpg
Track - Engine - Skis - Riding - Bibliography