The Honda GX390 is a 4-stroke, single-cylinder, air-cooled, OHV (Overhead Valve) petrol engine designed for heavy-duty commercial and industrial use. It delivers 13 horsepower (HP) at 3600 RPM and is known for its durability, easy starting, low fuel consumption, and smooth operation.
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Technical Specifications
Feature Specification
Engine Type 4-stroke, OHV, single-cylinder
Displacement 389 cm3
Bore x Stroke 88 mm x 64 mm
Maximum Power Output 13.0 HP (9.6 kW) @ 3600 rpm
Maximum Torque 26.5 Nm (2.7 kg·m) @ 2500 rpm
Cooling System Forced air-cooling
Ignition System Transistorized magneto ignition
Starting System Recoil (manual) or electric start (optional)
Fuel Type Unleaded petrol (gasoline)
Fuel Tank Capacity 6.1 liters
Lubrication System Splash type
Oil Capacity 1.1 liters
Dry Weight Approx. 31–33 kg (depending on model)