Snowmobiling blues...

philcollins said

Bombardier has 2 strokes and 4 strokes models.
Yamaha has 4 strokes only
Polaris if I not mistaken are 2 strokes only.

2 strokes are best for off track (deep snow) machines where raw power and light weight are preferred.

4 strokes are best suited for Grand Touring machines.

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I think Yamaha is still making a fan-cooled twin two stroke according to the 2019 buyer's guide. Yamaha has teamed up with Arctic Cat and they have there 4-stroke Genesis motor that they're trading back and forth and putting a turbo on and it does very well in the Deep powder it's just so powerful.