"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. Cylinder Bore Integrated, Compression Ratio 9.31, Shaft Keyway in. 1/4, Key size 6.3mm x 50mm, Ignition System Electonic, Digital CDI w/variable ignition timing, Bolt Circle in. 5, 6 1/2, 7 3/4, Rated Power HP 20.3, Air Cleaner Type Dual element/Cylindrical, Cylinders qty. 2, Charging System Amps 20, Lubrication System Full pressure, Fuel Type Gasoline, EPA/CARB Approval California Air Resource Board Yes, Shaft Length in. 2 29/32, Start Type Electric, shift type, Flywheel Brake No, Low Oil Alert Yes, Oil Capacity qt. 2, PTO Height in. 5 1/4, Shaft End Tapped Diameter in./Threads per inch 3/8-24, UNF2B, Choke Control Remote wire, Engine Type GX series OHV V-Twin commercial-duty, Cooling System Air cooled, Throttle Control Remote wire, Torque ft./lbs. 35.2, Max. RPM 3,600, Governor System Mechanical, Shaft Diameter in. 1, 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, Muffler Included Not included, Application Lawn tractor, concrete saw, pressure washer, chipper/shredder, trencher, vibratory roller, ride-on cement trowel, Fuel Pump Boost type, Shaft Output Horizontal, Fuel Tank Not included, Engine Displacement cc 688, Bore x Stroke in. 3.1 x 2.8, Mounting Base L x W in. 7 11/16 x 3 25/64 to 4 21/32, Crankshaft Q-type, Shaft Rotation From PTO Shaft Side Counterclockwise. 688cc air-cooled, 4-stroke OHV engine 50-state compliant engine"