Single cylinder, forced air cooling,4-stroke gasoline engine Model: GX340 11hp Displacement: 337 (cc) Bore Stroke: 82mm 64mm Rated Power Output: 8.6HP (6.3)KW / 3600rpm Max. Power Output : 11.0HP (8.1)KW / 3600rpm Torque (N.M): 20 / 2500 Compression Ratio: 8.0 : 1 Fuel Tank Capacity: 6.5 (L) Engine Oil Capacity: 1.1 (L) Engine Type: Forced Air-Cooled, 4 Stroke, Single Cylinder Ignition System: Transistor Magneto Starting System: Recoil Start N.W. / G.W. (KG): 31 / 33 Dimension (LÃ?WÃ?H): 490 430 510 20FT (set): 236