With the GX390, you’re looking at one of the best engines in the business. More power. Quieter performance. Lower fuel consumption. Lower emissions. Better features. Exceptional performance. Honda’s GX series lives up to the legend, and then some. Features Fuel Efficient, High Output Operation Digital CDI ignition system with variable timing Increased compression ratio Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficiency OHV design for increased efficiency and optimal power transfer Smooth Performance Precision engineered components result in lower vibration Ball bearing supported crankshaft for greater stability Heavy duty balancer shaft Improved piston design Exceptionally Quiet Large capacity, multi-chamber exhaust system Improved camshaft and muffler reduce overall engine noise by up to 5 dB Reduced mechanical noise due to piston design Forged steel crankshaft and rigid crankcase Helical cut gears Sophisticated air intake system Proven Reliability Oil Alert Cast iron cylinder sleeve High quality materials, fit, and finish Dual element air cleaner Fuel Valve 3-Year Limited Warranty Easy to Use and Maintain Simple throttle control Large fuel tanks Large automotive type fuel cap Dual oil drains and fill Easy, convenient, heavy duty control box Easily accessible spark plug Easy Starting Heavy duty recoil starter Automatic mechanical de-compression system Variable ignition timing Emissions Compliant CARB and EPA certified No catalyst necessary SPECIFICATIONS Engine Type Air-cooled 4-stroke OHV Bore x Stroke 86 x 64 mm Displacement 389 cm3 Net Power Output 11.7 HP (8.7 kW) @ 3,600 rpm Net Torque 19.5 lb-ft (26.4 Nm) @ 2,500 rpm PTO Shaft Rotation Counterclockwise (from PTO shaft side) Compression Ratio 8:2:1 Lamp/Charge coil options 25W, 50W / 1A, 3A, 10A, 18A Carburetor Butterfly Float Type Ignition System Digital CDI with variable timing Starting System Recoil/electric Lubrication System Splash Governor System Centrifugal Mass Type Air Cleaner Dual Element Oil Capacity 1.16 US qt (1.1 L) Fuel Tank Capacity 6.4 U.S. qts (6.1 liters) Fuel Unleaded 86 octane or higher Dry Weight 69 lbs (31.5 kg) Dimensions 16"L x 19.1"W x 17.7"H IF YOU HAVE ANY QUESTIONS FEEL FREE TO CALL 410-692-5170
