Engine | Honda GX 390 QX

Engine type

• 4-stroke single cylinder
• OHV petrol engine
• 25° inclined cylinder
• horizontal shaft

Cylinder sleeve type Cast iron sleeve

Bore x Stroke 88 x 64 mm

Displacement 389 cm³

Compression ratio 8.2 : 1

Net power 8.7 kW ( 11.7 HP ) / 3600 rpm

Cont. rated power 6.4 kW ( 8.6 HP ) / 3000 rpm
7.0 kW ( 9.4 HP ) / 3600 rpm

Max. net torque 26.5 Nm ( 2.7 kgfm ) / 2500 rpm

Ignition system Digital CDI with variable ignition timing

Starter Recoil (el. start optional)

Fuel tank capacity 6.1 Liter

Fuel cons. at cont. rated power 3.5 L/h - 3600 rpm

Engine oil capacity 1.1 Liter

Dimensions (L x W x H) 406 x 460 x 448 mm

Dry weight 31.7 kg

• The OHV design enhances combustion efficiency
• A variable ignition timing (digital CDI) results in high power output, reduced fuel consumption and excellent exhaust emissions performance.
• Easy starting with an automatic decompression system and an easy-to-grip soft recoil starter handle
• High quality materials and purpose-built components ensure reliable long-term use
• Meets world's most stringent environmental legislation
• Guaranteed low fuel and oil consumption
• Reduced vibration and noise level