FUEL EFFICIENT OPERATION
• Fuel economy is similar to fuel injection, with the simplicity of carburetion.
• Digital CDI ignition system with variable timing Learn More
• Includes a rev limiter to protect against damage from over-revving.
• Two barrel inner-vent carburetor for more precise fuel metering
• Insert style rod bearings
HIGH OUTPUT PERFORMANCE
• Hemispherical combustion chamber delivers rapid combustion Learn More
• 9.3:1 compression ratio generates high power output without the need for premium fuel
• Forged steel crankshaft
• Pressure fed crankshaft bearings
SMOOTH PERFORMANCE
• Integrated cylinder and head Learn More
• Racing inspired forged steel connecting rods
EXCEPTIONALLY QUIET
• High capacity 36 blade cooling fan
• Aluminum push rods with steel tips – lighter weight, lower vibration, and quieter operation
PROVEN RELIABILITY
• High capacity pump facilitates consistent oil delivery Learn More
• Dual cylindrical air filter
• Large diameter air intake for superior cooling
• 3-Year Limited Warranty
• Oil Alert Learn More
• Includes a rev limiter to protect against damage from over-speeding.
• Insert style rod bearings
EASY TO USE AND MAINTAIN
• Hour meter available
• Conveniently located controls, with several configurations available based on user preference
• Automotive-type spin-on oil filter
EASY STARTING
• Automatic mechanical de-compression system Learn More
• Variable ignition timing
| Model | GX630 |
|---|---|
| Engine Type | Air-cooled 4-stroke OHV |
| Bore & Stroke | 78 X 72 mm |
| Displacement | 688 cm3 |
| Net Power Output* | 20.8 hp (15.5 kW) @ 3,600 rpm |
| Net Torque | 35.6 lb-ft (48.3 Nm) @ 2,500 rpm |
| PTO Shaft Rotation | Counterclockwise (from PTO shaft side) |
| Compression Ratio | 9.3:1 |
| Lamp/Charge coil options | 2.7A, 17A, 26A |
| Carburetor | Horizontal type, two barrel butterfly valve, internal vent |
| Ignition System | Digital CDI with variable ignition timing |
| Starting System | Electric |
| Lubrication System | Forced lubrication |
| Governor System | Mechanical |
| Air Cleaner | Dual element |
| Oil Capacity | 2.1 US qt (2.0l) |
| Fuel Tank Capacity | 6.4 U.S. qts (6.1 liters) |
| Fuel | Unleaded 86 octane or higher |
| Dry Weight | 96.8 lb (44 kg) |