This well-known motorcycle brand has seen its 40 hp TR-11 engine installed on motor gliders. One of the brand's most interesting projects is the two-stroke double-cylinder engine.

-The intake is made through the base of one cylinder and the exhaust through the base of the other.

-Another port connects the carburetor with the crankcase when the piston sleeve rises to the maximum of its TDC.

-The most characteristic thing is the use of a single forked connecting rod that with its inclinations caused during the rotations make the pistons open the intake, exhaust and transition ports.

-This system also appears in another part of this publication.

"Three moments of the Puch engine"

-It has a spark plug and a decompressor.