"The Honda 389cc GX Series OHV commercial-grade engine is designed for the most demanding commercial applications. It has set an industry standard for reliability and durability. Overhead Valve design offers cooler, fuel-efficient operation and cast iron cylinder sleeve provides longer service life. The GX is reliable, easy starting and quiet running. Meets EPA and CARB emission levels standards. This legendary engine has earned the reputation as the preferred engine for construction equipment. Common application cement mixers. Air Cleaner Type Dual element, Auto Compression Release Yes, Choke Control Manual, Compression Ratio 8.01, Cooling System Air cooled, Crankshaft H type, Bore x Stroke in. 3.2 x 2.5, Carburetor Float, external vent, Dimensions L x W x H in. 15 x 16 7/8 x 16 1/8, EPA/CARB Approval California Air Resource Board Yes, Cylinder Bore Cast iron, Cylinders qty. 1, Fuel Tank Capacity qt. 6.4, Fuel Type Gasoline, Gear Reduction H type 61, Governor System Centrifugal mechanical, Fuel Filter Fuel tank filler neck strainer, Low Oil Shutdown Yes, Lubrication System Forced splash, Max. RPM 3,600, Mounting Base L x W in. 7 11/16 x 3 25/64 to 4 1/16, Ignition System Electronic, Low Oil Alert Yes, PTO Height in. 5 1/4, Shaft Diameter in. 1, Shaft End Tapped Diameter in./Threads per inch 7/16-20, Muffler Included Standard, exhaust pipe protector, spark arrestor, deflector, Oil Capacity qt. 1.16, Shaft Output Horizontal, Shaft Rotation From PTO Shaft Side Counterclockwise, Start Type Recoil, Torque ft./lbs. 16.30 at 2,500 RPM, Shaft Keyway in. 1/4, Shaft Length in. 3 15/64, Fuel Tank Standard White, Application Cement mixer, Bolt Circle in. 5, Rated Power HP 9 1/2, Engine Displacement cc 389, Engine Type GX series OHV commercial-duty. Historical rating 11 HP Automatic decompression for easy starting Heavy-duty ball bearing supported crankshaft Double walled heavy-duty tank with in tank fuel strainer 50-state compliant engine"