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- Maximum power: 20.8 hp
- Cubic Capacity: 688 cm³
- Maximum Power Speed (rpm): 3600 rpm
- Max. torque: 48.3 Nm (4.93 kgfm) @ 2500 rpm
- Engine model: GX630RH-QZ-A5-OH
- Cylinder number: 2
- Camshaft / Valves: OHV
- Shaft type: Keyway
- Shaft diameter: 25.40 mm (1")
- Fuel used: Unleaded
- Air cleaner: Dual element
- Oil tank capacity: 1.9 L
- Low oil level protection: Oil Alert
- Fuel consumption: 6.0 L/h @ 3600 rpm
- Start-Up: Electric
- Cooling system: Air Cooled
- Power Supply: Petrol-Powered
- Weight: 44.4 kg
- Size: 405 x 410 x 438 mm
The GX630 engine is suitable for construction equipment, generators and other heavy-duty professional applications.
• 4-stroke, 2-cylinder (V-twin), OHV, gasoline engine, 90°, horizontal shaft (688 cc).
• Designed with overhead valves (OHV) for improved combustion efficiency.
• It has a reinforced cast iron cylinder as well as a redesigned and lighter piston for less vibration.
• With magneto ignition system with transistor and horizontal carburetor with butterfly valve.
• Easy electric power and start with automatic decompression system with automatic return rope.
• High turnover ratio.
• Its net power is 20.8 HP (15.5 kW) at 3,600 rpm.
• Maximum net torque is 48.3 Nm (4.93 kgfm) of torque at 2,500 rpm.
• Low fuel and oil consumption.
• With an Oil Alert system, which is designed to prevent damage caused by an insufficient amount of oil in the crankcase.
• Before the oil stop in the crankcase drops below the safe limit, the oil warning system that shuts down the engine.
• Made with high-quality materials and custom-made components that ensure reliable, long-lasting use.
• Exceeds European emissions legislation.
• It achieves high performance but also low levels of noise and vibration and never emits pollutants, without sacrificing its reliability.
• Honda engines have gained worldwide recognition for their ability to deliver power in even the most demanding applications.
• They are the first choice of the biggest manufacturers.
• 36 months Honda warranty (for professional use).
• 2.7A charging coil.















