1)Type :2-Bore,4-Stroke,Liquid-cooled 2)Bore x Stroke :76mmx71mm 3)Displacement : 644 cc 4)Compression ratio:8.4:1 5)Carburetor : BJH101E or CSH101E 6)Max Power :15kw/5300rpm 7)Maximum Torque :44/2700~3300Nm/r/min ...