Briggs and Stratton 12T102-0023-F8 205cc 800 Series Engine with a 3/4-Inch Diameter by 2-5/16-Inch Length Crankshaft Kool Bore Aluminum alloy bore for cooler operation Float carburetor for consistent, easy starting Maintenance-free Magnetron electronic ignition for quick, dependable starts Overhead valve design (OHV) for cooler operation and longer valve life Maxi-Clean automotive-type pleated paper air filter provides superior protection for long engine life