Chicago Electric 4000W/5000W 8HP Portable Generator, Briggs & Stratton 8 HP (Model 190412), 19.44 Cu. In. (318.5 Cc) Gasoline Engine, Single-Cylinder Flathead Engine Design With Cast-Iron Sleeve (Extended Life), Magnetron Solid-State Electronic Ignition, Manual Recoil Pull-Start 5000 Watt Surge/Starting Power, 4000 Watts Continuous/Running Power, 120V / 240V Dual Output, Heavy Duty Frame