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.
Engine Type | Air-cooled 4-stroke OHV |
Bore x Stroke | 88 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 |
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 91 octane or higher |
Dry Weight | 69 lb (31.5 kg) |