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Honda GX630RHQZB2 Horizontal V-Twin Engine Assembly
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| Engine Type | Air-cooled 4-stroke OHV 90-degree V-twin gasoline |
| Displacement | 688 cc (41.9 cu in) |
| Bore Diameter X Stroke Length | 78.0 mm x 72.0 mm (3.07 in x 2.83 in) |
| Compression Ratio | 9.3:1 |
| Power Output | 15.5 kW (20.8 HP) @ 3600 RPM |
| Max Torque | 48.3 Nm (35.6 lb-ft) @ 2500 RPM |
| Ignition System | Digital CDI with variable timing |
| Start Type | 12V Electric Start |
| Charging System | 17 Amp |
| Carburetor Type | Horizontal two-barrel butterfly valve, internal vent |
| Lubrication Method | Full pressure with spin-on oil filter |
| Oil Capacity | 1.9 L (2.0 US qt) |
| Shaft Orientation | Horizontal |
| Shaft Dimensions | 1 in diameter x 2-29/32 in length, 3/8-24 tapped, 1/4 in keyway |
| Fuel Type | Unleaded gasoline (max 10% ethanol) |
| Spark Plug Type | NGK ZFR5F (or equivalent) |
| Air Filtration | Dual element (Honda 17210-Z6L-010) |
| Dry Weight | 44 kg (97 lbs) |
| Dimensions LxWxH | 406 mm x 413 mm x 438 mm (16 in x 16.25 in x 17.25 in) |
Manufacturer No.
GX630RHQZB2GX630RHQZB3GX630RHQAFGX630QZB2GX630QZB3
OEM Part No.
GX630RHQZB2
Engine And Exhaust Systems - Industrial Encyclopedia
Genuine Honda GX630RHQZB2 688cc 4-stroke OHV horizontal V-twin gasoline engine, 20.8 HP net power, electric start, 17A charging, 1 inch keyed shaft for industrial repower applications.