Today at coffee one of the members of our classic bike club bought in a Transparent 4 cycle engine.
This has a cylinder which appears to be some form of plastic.
After the coffee he set it up on the tailgate of his truck and had it running for our amusement, you can see the ignition and burning gas inside, I would post a video of this if I knew how to get it from my phone to the site.
its a Megatech Mark III from Megatech Corporation Belmont Massachusetts
Has anyone else seen one of these wonders?