[cRiPpLe_rOoStEr]

Originally Posted by Michael Moore

Nothing new about that, the Wulf engine developed by Bernard Hooper has been around for decades:

BACKGROUND TO BERNARD HOOPER ENGINEERING LTD

I wasn't aware of that Wulf engine, but the ones I was already aware had more conventional pistons instead of those ported ones.
http://motor2t.net/indexI.htm - the developer of this one used some chainsaw engines as the base for the project but recently was intending to convert a Honda Cub engine to 2-stroke, altough I don't know if he already did it.