"With experience born on the raceways and roadways and a dedication to innovation, there's plenty of reasons to insist on the new Honda GX660 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. Cylinders qty. 2, Charging System Amps 20, Engine Displacement cc 688, Governor System Mechanical, Engine Type GX series OHV V-Twin commercial-duty, Bore x Stroke in. 3.1 x 2.8, Shaft Keyway in. 1/4, Key size 6.3mm x 70mm, Cylinder Bore Integrated, PTO Height in. 5 1/4, Torque ft./lbs. 35.2, Application Lawn tractor, mower, utility vehicle, concrete saw, pressure washer, chipper/shredder, trencher, vibratory roller, ride-on cement trowel, Ignition System Electonic, Digital CDI w/variable ignition timing, Compression Ratio 9.31, Air Cleaner Type Dual element/Cylindrical, Start Type Electric, shift type, EPA/CARB Approval California Air Resource Board Yes, Oil Capacity qt. 2, Shaft Diameter in. 1 1/8, Shaft Length in. 3.55, Lubrication System Full pressure, Carburetor 2-barrel, fuel cut solenoid, inner vent, Crankshaft T type, Fuel Pump Boost type, Max. RPM 3,600, Throttle Control Remote wire, Dimensions L x W x H in. 15 7/8 x 16 1/8 x 17 3/16, Shaft Rotation From PTO Shaft Side Counterclockwise, Cooling System Air cooled, Bolt Circle in. 5, 6 1/2, 7 3/4, Rated Power HP 21, Mounting Base L x W in. 7 11/16 x 3 25/64 to 4 21/32, Muffler Included Not included, Shaft End Tapped Diameter in./Threads per inch 7/16-20, UNF2B, Flywheel Brake No, Choke Control Remote wire, Fuel Tank Not included, Fuel Type Gasoline, Shaft Output Horizontal. 688cc air-cooled, 4-stroke OHV engine 50-state compliant engine"
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