Featuring more power, quieter performance, lower fuel consumption and lower emissions. With new features and better performance, the new GX engines establish themselves yet again as the best engines in the business.
Common Applications:
- Forestry equipment
- Agricultural Equipment
- Pressure washers
- Commercial lawn and garden equipment
- Tillers/cultivators
- Generators
- Construction/Industrial Equipment
- Water Pumps
Features
| FUEL EFFICIENT, HIGH OUTPUT OPERATION | Digital CDI ignition system with variable timing |
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| Increased compression ratio |
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| Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficiency |
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| OHV design for increased efficiency and optimal power transfer |
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| SMOOTH PERFORMANCE | Precision engineered components result in lower vibration |
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| Ball bearing supported crankshaft for greater stability |
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| Heavy duty balancer shaft |
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| Improved piston design |
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| EXCEPTIONALLY QUIET | Large capacity, multi-chamber exhaust system |
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| Improved camshaft and muffler reduce overall engine noise by up to 5 dB |
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| Forged steel crankshaft and rigid crankcase |
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| Helical cut gears |
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| Sophisticated air intake system |
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| PROVEN RELIABILITY | Oil Alert |
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| Cast iron cylinder sleeve |
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| High quality materials, fit, and finish |
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| Dual element air cleaner |
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| Fuel Valve |
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| EASY TO USE AND MAINTAIN | Simple throttle control |
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| Large fuel tanks |
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| Large automotive type fuel cap |
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| Dual oil drains and fills |
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| Easy, convenient, heavy duty control box |
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| Easily accessible spark plug |
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| EASY STARTING | Heavy duty recoil starter |
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| Automatic mechanical de-compression system |
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| Variable ignition timing |
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| EMISSIONS COMPLIANT | Applicable models meet the strictest world standards, contact Honda for more info |
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| No catalyst necessary |
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| AVAILABLE OPTIONS | Low profile versions |
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| Gear reduction options |
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| Electric start |
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| Spark arrester available |
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| Charge and lamp coils with multiple output options available |
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| Cyclone Air Cleaner available |
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Specifications
| Model | GX390 |
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| Type | 4-stroke, overhead valve, single-cylinder, horizontal shaft |
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| Bore and Stroke | 88 x 64 mm |
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| Displacement | 389 cm3 |
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| Compression Ratio | 8.0:1 |
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| Net Power | 8.2kW (11.0HP) at 3,600 rpm |
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| Maximum Net Torque | 25.1 Nm at 2,500 rpm |
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| Ignition System | Transistorised magneto ignition |
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| Starting System | Recoil (Electric Starter Optional) |
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| Cooling System | Forced-Air |
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| PTO Shaft Rotation | Counter-clockwise (from P.T.O. side) |
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| Fuel Consumption at Rated Power | 3.7 L/h at 3,600 rpm |
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| Lubrication System | Splash |
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| Recommended Oil | 10W/30 API SG |
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| Oil Capacity (Litres) | 1.1 L |
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| Fuel Capacity (Litres) | 6.1 L |
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| Dimensions | 405 x 450 x 443mm |
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| Dry Weight | 31kg |
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| Other Options | 2:1 Reduction |
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