... , OHV, gasoline engineSingle cylinder, 4-stroke, OHC, gasoline engineSingle cylinder, 4-stroke, air-cooled, OHV, gasoline engineBore×Stroke43.5×36 mm58X40 mm66×50 ... , gasoline engineSingle cylinder, 4-stroke, OHV, gasoline engine Bore×Stroke68×54 mm88×64 mm Displacement196 ml389 ml Compression ratio8.5:18.5d:1 ...