Mini mac 6:
ASSEMBLY NUMBER: 600081, serial prefix 10, A10, 11, A11, 12
YEAR INTRODUCED: July 1970
YEAR DISCONTINUED: May 1973
ENGINE DISPLACEMENT: 1.78 cu. in. (29cc)
NUMBER OF CYLINDERS: 1
CYLINDER BORE: 1.375 in.
PISTON STROKE: 1.200 in.
CYLINDER TYPE: Aluminum with chrome plated bore
INTAKE METHOD: Piston ported