$795.00 Cylinder Capacity 4.76 cu.in   Power Rating 9 HP 5.96 kW Bore Diameter 1.97 in   Stroke 1.57 in   Weight 5.05 lbs   Speed Range 1100-8500 RPM Crankshaft 3 Ball bearings Connecting Rod Needle bearings on both ends Oil / Gasoline Ratio 1:50 - 1:80 Mix Ignition 6.0 V Propeller - 2 Bladed 26 x 10,12   28 x 10 Propeller - 3 Bladed 22 x12   23 x 12   24 x 10