CS4501 chain saw

Engine: single cylinder, two-stroke, air-cool Cylinder diameter x stroke: 43mm x 31mm Ignition system: C.D.I Fuel: Mixture ( Gasoline 25: Two cycle oil 1 ) Fuel tank capacity: 550 (ml) Chain oil: Motor oil SAE#10W-30 Oil tank capacity: 260 (ml ) Engine displacement: 45 ( cc) Maximum engine power: 1.8kw / 7500rpm Maximum engine speed with cutting attachment: 10000rpm Maximum engine speed at idling: 2800rpm Maximum cutting length: 45 (cm) Sprocket: 7T x 0.325 Saw chain type: Carlton/Tiger/Oregon Saw chain pitch: 0.325/0.375(in) Saw chain gauge: 0.058/0.063(in) Guide bar type: Sprocket nose Guide bar size: 16" / 18" Oil feeding system: Automatic pump with adjuster Compression ratio:7.5:1 Net Weight(without guide bar and chain): 5.3kg Gross weight(With 18 cutting attachment):6.5Kg Packing size:48.5 x25 x30cm Packing quantity:820pcs/20Fcl,1850pcs/40HQ