Kawasaki FS651V-S07-S vertical OHV 4-cycle V-Twin engine is 726cc and puts out 22.0 HP (maximum horsepower). This FS651V has a 1″ x 80mm crankshaft, an electric starter and a charging coil. A muffler is not included with this engine. Being SAE Power Certified, Kawasaki FS Series engines promise to deliver the reliable power needed to accomplish demanding outdoor tasks while keeping emissions down. Ideal for zero-turn mowers, wide-area walk-behind mowers and lawn tractors. Buyer protection package provides a three-year commercial engine warranty. 50-State CARB Compliant. All engines purchased from us ship for free and are foam packed for added protection during transit.