GO .28 Rear Pull Starter Crank 14mm 3Port Code R2100-M10HSG Maximum power 2.80 hp R.P.M 32.000 rpm Practical Range 6.000/37.500 rpm Bore/Stroke 18.35mm/17.60mm Ports 3 Crankshaft 14mm SG Glow Plug Type Standard Exhaust Type Rear