SPECIFICATIONS
GX630 |
GX660 |
GX690 |
|
|---|---|---|---|
| Engine Type | Air-cooled 4-stroke OHV | Air-cooled 4-stroke OHV | Air-cooled 4-stroke OHV |
| Bore x Stroke | 78 X 72 mm | 78 X 72 mm | 78 X 72 mm |
| Displacement | 688 cm3 | 688 cm3 | 688 cm3 |
| Net Power Output* | 20.8 hp (15.5 kW) @ 3,600 rpm | 21.5 hp (16.0 kW) @ 3,600 rpm | 22.1 hp (16.5 kW) @ 3,600 rpm |
| Net Torque | 35.6 lbs ft (48.3 Nm) @ 2,500 rpm | 35.6 lbs ft (48.3 Nm) @ 2,500 rpm | 35.6 lb-ft (48.3 Nm) @ 2,500 rpm |
| PTO Shaft Rotation | Counterclockwise (from PTO shaft side) | Counterclockwise (from PTO shaft side) | Counterclockwise (from PTO shaft side) |
| Compression Ratio | 9.3:1 | 9.3:1 | 9.3:1 |
| Lamp/Charge coil options | 2.7A, 17A, 26A | 2.7A, 17A, 26A | 2.7A, 17A, 26A |
| Carburetor | Horizontal type, two barrel butterfly valve, internal vent | Horizontal type, two barrel butterfly valve, internal vent | Horizontal type, two barrel butterfly valve, internal vent |
| Ignition System | Digital CDI with variable ignition timing | Digital CDI with variable ignition timing | Digital CDI with variable ignition timing |
| Starting System | Electric | Electric | Electric |
| Lubrication System | Forced lubrication | Forced lubrication | Forced lubrication |
| Governor System | Mechanical | Mechanical | Mechanical |
| Air Cleaner | Dual element | Dual element | Dual element |
| Oil Capacity | 2.1 US qt (2.0l) | 2.0 US qt (1.9l) | 2.1 US qt (2.0l) |
| Fuel | Unleaded 86 octane or higher | Unleaded 86 octane or higher | Unleaded 86 octane or higher |
| Dry Weight | 96.8 lb (44 kg) | 96.8 lb (44 kg) | 96.8 lb (44 kg) |
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