Here's what I'm starting with. Jet 200 purchased locally in Los Angeles...

I was going to wait to post until I had a bit of significant progress, but I've some hit a few bumps in the road so i figured I'd work through them via the forum. Anyhow, the gist of the build is a Rotax water cooled barrel, using a 64mm stroke Lambretta crank mated to a 125mm rod. Bottom end Lambretta, top end Rotax. Here's the barrel:

This one's fun. A comparison to a stock 200 barrel.

And the obligatory 'gasket on the crank case' shot...
