RE: any one seen this before??
Hello; Downunder has it sussed; A two stroke relies on the underside of the piston to move the nixture from the crankcase to the combustion chamber. In this engine there are two pistons but only one crankcase. To time the induction of the mixture into the combustion chamber, the first cylinder gets the pressure and the bulk of the fuel charge leaving very little for the second cylinder. Those high performance v twin two strokes had separate crank throws for each cylinder, and the crankcase was sealed so that piston moving down would compress the mixture into the combustion chamber, the only way that would work.
An interesting discussion starter, but if it did work, someone would have done it years ago.