"With experience born on the raceways and roadways and a dedication to innovation, there's plenty of reasons to insist on the new Honda GX630 V-Twin engine. There's superior engine design, with a 90 configuration that reduces vibration and allows a compact footprint. There's superior construction, with a forged steel crankshaft and an integrated cylinder head. Fewer parts means better durability. There's a digital CDI ignition coil that ensures improved fuel economy and lowered emissions. There's even improved air cleaning, meaning that you can wait 5 times longer between filter changes. Honda even gives their engines a 3-year limited warranty. The image shown is not reflective of the actual item shipped. There is no control panel as shown in the image. Compression Ratio 9.31, Cylinder Bore Integrated, Mounting Base L x W in. 7 11/16 x 3 25/64-4 21/32, Air Cleaner Type Dual element/Cylindrical, Rated Power HP 20.3, Flywheel Brake No, Shaft Length in. 2 29/32, Start Type Electric, shift type, Fuel Type Gasoline, EPA/CARB Approval California Air Resource Board Yes, Oil Capacity qt. 2, PTO Height in. 5 1/4, Low Oil Alert Yes, Cylinders qty. 2, Lubrication System Full pressure, Max. RPM 3,600, Governor System Mechanical, Choke Control Remote wire, Shaft End Tapped Diameter in./Threads per inch 3/8-24, UNF2B, Engine Type GX series OHV V-Twin commercial-duty, Fuel Tank Not included, Shaft Output Horizontal, Ignition System Electonic, Digital CDI w/variable ignition timing, Bolt Circle in. 5, 6 1/2, 7 3/4, Shaft Keyway in. 1/4, Key size 6.3mm x 50mm, Cooling System Air cooled, Throttle Control Remote wire, Torque ft./lbs. 35.2, Fuel Pump Boost type, Application Lawn tractor, concrete saw, pressure washer, chipper/shredder, trencher, vibratory roller, ride-on cement trowel, Dimensions L x W x H in. 15 7/8 x 16 1/8 x 17 3/16, Carburetor 2-barrel, fuel cut solenoid, inner vent, Shaft Diameter in. 1, Muffler Included Not included, Charging System Amps 17, Crankshaft Q-type, Bore x Stroke in. 3.1 x 2.8, Shaft Rotation From PTO Shaft Side Counterclockwise, Engine Displacement cc 688. 688cc air-cooled, 4-stroke OHV engine 50-state compliant engine"