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Engine Type: 1 cyl

Displacement: 139cc

Bore x Stroke: 62 x 46mm (2.44 x 1.81in)

Prop Shaft Horsepower: 6hp at 5000 rpm

Full Throttle RPM Range: 4500 ~ 5500

Alternator Output at W.O.T.: 6 Amp

Compression Ratio: 8.9:1

Fuel Induction System: Carb

Weight: 27 kg (59 lbs) - 28 kg (61 lbs)

Recommended Fuel: Octane 87

Recommended Engine Oil: Yamalube® 4M (See owner's manual)

Recommended Fuel Filtration: N/A