rotax1

I remember these mounted on ski-doo snowmobiles in the 70"s when we lived in Maine,they were great running two-strokes

I have two of these 318cc had one on a margay go kart (WOW!)

That Rotax-powered Margay must have been awesome.
I had a 335cc Rotax on a go-cart frame. (The engine is too tall to fit inside my mini bike frame.) I acquired the engine for free around 1977 from a guy who had a junked Ski-Doo. I have home video of me riding the go-cart with the Rotax. I sold the go-cart + Rotax to another kid from high school, ~'1981 - '82.