(1). Model: JF620
(2). Engine type :4-stroke, Air-cooled ,OHV, 90 degree V-twin, flat crank set
(3). Max. output(PS/rpm): 20/3600
(4). Rated Power kW/min 13.4 /3600
(5). power (kW/min): 11.5/3000
(6). Displacement (CC): 615
(7). Bore×Stroke (mm×mm): 77×66
(8). Max. torque (N.m/rpm): 44.1/2500
(9). Compression ratio:8.3:1
(10). Net weight (kg) :42
(11). Average speed of piston (m/s): 7.92
(12). Fuel Consumption (g/kW.h) :