Looking for Answers about Honda Horizontal OHV Engine - 390cc, GX Series, 1in. x 3 31/64in. Shaft, Model# GX390UT2QAA2?

The Honda 390cc 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 applications include pressure washers, compressors, log splitters and chipper/shredders. Limit two per customer. Engine Displacement (cc): 390, Start Type: Recoil, Application: Pressure washers, compressors, Engine Type: GX series OHV-commercial duty, Rated Power (HP): 11, Torque (ft./lbs.): 18.50 at 2,500 RPM, Shaft Output: Horizontal, Crankshaft: Q-type, Shaft Diameter (in.): 1, Shaft Length (in.): 3 31/64, Shaft Keyway (in.): 1/4, Shaft End Tapped (Diameter (in.)/Threads per inch): 3/8-24, Shaft Rotation (From PTO Shaft Side): Counterclockwise, PTO Height (in.): 5 1/4, Cylinders (qty.): 1, Cylinder Bore: Cast iron, Bore x Stroke (in.): 3.5 x 2.5, Compression Ratio: 8.0:1, Cooling System: Air cooled, Air Cleaner Type: Dual element, Fuel Tank: Standard (white), Fuel Type: Gasoline, Fuel Tank Capacity (qt.): 6.4, Fuel Filter: Fuel tank filler neck strainer, Oil Capacity (qt.): 1.16, Lubrication System: Forced splash, Low Oil Alert: Yes, Low Oil Shutdown: Yes, Ignition System: Electronic, Governor System: Centrifugal mechanical, Carburetor: Float, external vent, Throttle Control: Remote (wire), Choke Control: Manual, Max. RPM: 3,600, Muffler Included: Silent, Auto Compression Release: Yes, Bolt Circle (in.): 5, 6 1/2, Mounting Base L x W (in.): 7 11/16 x 3 25/64 to 4 1/16, Dimensions L x W x H (in.): 15 7/8 x 17 11/16 x 17 3/8, EPA/CARB Approval (California Air Resource Board): Yes Air-cooled 4-stroke horizontal OHV engine for increased efficiency and optimal power transfer Automatic decompression and heavy-duty recoil starter for easy starting Heavy-duty ball bearing supported crankshaft for greater stability Large double walled heavy-duty tank with in tank fuel strainer  Large, easy to fill automotive-style fuel cap  Auto idle/throttle control for extended engine life, improved fuel economy and reduced engine noise  Precision camshaft for better fuel economy with precise valve timing and optimal valve overlap  Low noise level thanks to a large capacity, multi-chambered exhaust system  Improved camshaft and muffler reduce engine noise by up to 5dB Oil Alert protects engine  Cast iron cylinder  Dual element air filter  Easy to use throttle control 50-state compliant engine  Dual oil drains and fills for quick oil changes  Easily accessible spark plug