Parallel-Twin-cylinder-Engine/244FMI(125)
Double-cylinder,four-stroke air-cooled electric starter hand-clutched 125cc/150cc
244FMI-B/247FMJ-B

Parallel-Twin-cylinder-Engine/253FMM(250)
Double-cylinder,four-stroke,air-cooled,hand-clutched Only-electric starter250cc
253FMM-C
Double-cylinder,four-stroke,air-cooled,hand-clutched reverse Only-electric starter250cc
SPECIFICATION
Displacement: 233ml
Compression ratio: 9.2:1
Primary reduction: 3.631