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.
- Honda OHV commercial grade engine
- 9.6kW (13HP)/3600rpm and 389 cm³ Displacement
- Fuel efficiency
- 1 year warranty
|Engine type||4-stroke, overhead valve single cylinder, inclined by 25°|
|Displacement (cm3)||389 cm³|
|Bore and stroke||88.0 × 64.0 mm|
|Compression ratio||8.2 : 1|
|Gross power (SAE J1995)||9.6kW (13HP)/3600rpm|
|Net Power (SAE J1349)*||8.7kW (11.7 HP)/3600 min-1 rpm|
|Max. Net Torque (SAE J1349)*||26.5 N.m (2.7 kgf.m, 19.5 lbf.ft)/2500 min-1 rpm|
|Fuel tank capacity||6.1 Liters Gasoline Oktan 86 or higher|
|Ignition system||CDI Digital|
|Spark plug||BPR6ES (NGK) / W20EPR-U (DENSO)|
|Starting system||Recoil starter|
|Air cleaner||Dual element type|
|Oil Capacity||1.1 Liters SAE 10W-30 (API SE or Later)|
|Dimensions||407 x 459 x 449|
|Dry Weight||31 kg|
Data Specifications are subject to change at any time without prior notice
* The power rating of the engine indicated in this document is the net power output tested on a production engine for the engine model and measured in accordance with SAE J1349 at 4,500, 4,000 or 3,600 rpm (Engine Net Power) and at 3,000 or 2,500 rpm (Engine Max. Net Torque).
Mass production engines may vary from this value . Actual power output for the engine to be mounted on the manufacture of the final machine will vary depending on many factors , including the operating speed of the engine in application , environmental conditions , maintenance and other variables .