Engine Specs. for ACME AD 400   Displacement 401cm3 Power @ 3600 rpm 10 Hp / 7.4 kW Cylinders 1 Bore 82 mm Stroke 76 mm Compression Ratio 20:3:1 Max Torque 22.2 Nm Oil sump Capacity 1.5 Lts Fuel Tank Capacity 5 Lts Dimensions WxLxH   Dry Weight 45 Kg