G. Mark 0.061 cubic inch (1 ccm)

This one is testet ! works perfectly, uses standard glow plug size thread,
nice carburetor with adjustable idle, and servo controlled thrutle.
it respond to thrutle super fast ! even the idle is nice stable and slow, a real killer motor !
This motor is dated to about 1980, the silencer is not complete I only have the front part of it.

See the two small yellow things on the table ???

When you experiment with engines indoor, use something to put in your ears !