for anyone who is not sure how a 2 cycle works here is a diagram
[link=http://www.mopedarmy.com/forums/discuss/download.php?f=7&file=1135459005_2_stroke.gif]2 cycle engine[/link]

Ohh, I am not sure what thread it was but a big reason why Snowmobiles have turbo's or superchargers is mainly because they are 4 stroke, and if they are a 2 stroke this can be achieved because it is oil injected, meaning if the fuel is leaned out you will still manage to get the same amount of oil into the mix. But trust me that is rare to come by