Engine Specs. for ACME ADN 54   Displacement 540cm3 Power @ 3600 rpm 12.8 Hp / 9.4 kW Cylinders 1 Bore 90 mm Stroke 85 mm Compression Ratio 19 : 1 Max Torque 29 Nm Oil sump Capacity 2 Lts Fuel Tank Capacity 5.9 Lts Dimensions WxLxH   Dry Weight 57 Kg