The Kawasaki FX691V-(E)S06-S is a 0.73 l (726 cc, 44.3 cu-in) V-twin 90Ā° air-cooled 4-stroke internal combustion small gasoline engine with vertical shaft. The Kawasaki FX691V has a V-twin design with vertical PTO shaft. The motor uses overhead V-valves; spherical combustion chamber; cast-iron cylinder liners; metal engine cover with integrated cleanout ports; rotating metal grass chopper screen. The engine is equipped with electronic spark ignition and internally vented carburetor with fuel shut-off solenoid. The motor uses a high-performance lubrication system and single or multi-stage canister air filter.