i was searching the web for a few days now looking for a small rotary tat i can put on one of thoes pocket bike frames. i did find rotomax but there sight was hard to navigate and i couldnt find any prices. does any one know where i can find a 150ish cc rotary.

 

There was a snowmobile made with a single rotor engine, don't recall if it was 12A or 13B sized. PM 88GTU he ran across one a couple of years ago, even found a guy that had worked on them and had rebuild kits/parts for them. Can't think of the mane of manufacturer atm.

 

You're referring to the Sachs rotary motors. They were aircooled and used in some snowmobiles in the '70s.

 

This is a new design single rotor 50HP rotary engine for gocarts,
they are really kick ***,there is a video of a gocart testing this engine in the page.

They are watercooled and comes with all parts to run.

Here is a link to the sight:

http://www.nova-racing.com/

 

Oh my god. I've got to drive one of those XR50 GoKarts. Absolutely incredible!!!