- Model: GX390
- Type: 4-Stroke, overhead valve, single-cylinder, horizontal shaft
- Bore & Stroke: 88 x 64 mm
- Maximum Net Torque: 25.1 Nm at 2,500 rpm
- Ignition System: Transistorised Magneto Ignition
- Starting System: Recoil
- Cooling System: Forced-air
- PTO Shaft Rotation: Counter-clockwise (from P.T.O. side)
- Fuel Consumption At Rated Power: 3.7 L/h at 3,600 rpm
- Recommended Fuel: Unleaded
- Lubrication System: Splash
- Oil Capacity: 1.1l
- Fuel Tank Capacity: 6.1l
- Dimensions: 405mm x 450mm x 443mm