Kawasaki FS691V-S08-S 1" X 80mm Shaft No Muffler Electric Start EngineKawasaki FS691V S08 S 1" X 80mm Shaft No Muffler Electric Start Engine The FS691V engine carries out the tough work in compact spaces. For zero turn mowers and lawn tractors, this 4 cycle engine with rotating grass screen and dual element air filter provides optimum productivity and maximum payback. Features: Overhead V valve Integrated clean out ports 90 V twin Pressurized lubrication system Electronic spark ignition Automatic compression release