
GX390
Honda takes pride in presenting a product that is eco-friendly and industrious. The durable and high performer- GX390 Engine is all this much and more. This easy to use and maintenance machine is suitable for heavy-duty jobs due to its tough parts and built. Also, it is quite notable for its efficient fuel economy, easy starting and performance.

FUEL EFFICIENT, HIGH OUTPUT OPERATION
• Digital CDI ignition system with variable timing Learn More
• Increased compression ratio
• Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficency
• OHV design for increased efficiency and optimal power transfer
SMOOTH PERFORMANCE
• Precision engineered components result in lower vibration
• Ball bearing supported crankshaft for greater stability
• Heavy duty balancer shaft
• Improved piston design

EXCEPTIONALLY QUIET
• Large capacity, multi-chamber exhaust system
• Improved camshaft and muffler reduce overall engine noise by up to 5 dB
• Reduced mechanical noise due to piston design
• Forged steel crankshaft and rigid crankcase
• Helical cut gears
• Sophisticated air intake system

PROVEN RELIABILITY
• Oil Alert Learn More
• Cast iron cylinder sleeve
• High quality materials, fit, and finish
• Dual element air cleaner
• Fuel Valve
• 3-Year Limited Warranty

EASY TO USE AND MAINTAIN
• Simple throttle control
• Large fuel tanks
• Large automotive type fuel cap
• Dual oil drains and fill
• Easy, convenient, heavy duty control box
• Easily accessible spark plug

EASY STARTING
• Heavy duty recoil starter
• Automatic mechanical de-compression system Learn More
• Variable ignition timing
EMISSIONS COMPLIANT
• EPA certified
• No catalyst necessary

AVAILABLE OPTIONS
• Low profile versions
• Gear reduction options
• Electic start
• Spark arrester available
• Charge and lamp coils with multiple output options available
• Cyclone Air Cleaner available
• Cyclone Air Cleaner available (Select models)
Model | GX390 |
---|---|
Engine Type | Air-cooled 4-stroke OHV |
Bore & 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 (26.5 Nm) @ 2,500 rpm |
PTO Shaft Rotation | Counterclockwise (from PTO shaft side) |
Compression Ratio | 8.2:1 |
Lamp/Charge coil options | 25W, 50W / 1A, 3A, 10A, 18A |
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 86 octane or higher |
Dry Weight | 69 lb (31.5 kg) |