Honda VTwin Horizontal OHV Engine with Electric Start 688cc GX Series Model GX630RHQAF1
Choose the high-end power and smooth operation of the Honda V-Twin Horizontal OHV Engine 688cc GX Series (Model GX630RHQAF1), featuring Electric Start. This premium engine is designed for large generators, utility vehicles, and heavy-duty industrial machinery. The GX630RHQAF1 delivers exceptional, smooth power, featuring the heavy-duty Honda GX Series V-Twin construction.
Rely on this Honda V-Twin Horizontal OHV 688cc GX V-Twin engine for its superior durability, easy electric starting, and the low-vibration performance essential for continuous, high-load professional use.
| Brand | Honda Engines |
| Manufacturer’s Warranty | 3 year limited warranty |
| Ship Weight | 110.0 lbs |
| Engine Displacement | 688 cc |
| Engine Type | GX Series OHV V-Twin commercial-duty |
| Net Power Output | 20.8 HP |
| Start Type | Electric |
| Shaft Diameter | 1 in |
| Shaft Length | 2.9 in |
| Net Torque | 35.6 ft-lbs. |
| Shaft Output | Horizontal |
| Shaft Keyway | 0.25 in |
| Shaft End Tapped (Diameter (in.)/Threads per inch) | 3/8-24 UNF2B |
| Shaft Rotation (From PTO Shaft Side) | Counterclockwise |
| Crankshaft | Q-type |
| PTO Height | 5.25 in |
| Cylinders (qty.) | 2 |
| Cylinder Bore | Integrated |
| Compression Ratio | 9.3:1 |
| Cooling System | Air cooled |
| Stroke | 2.8 in |
| Air Cleaner Type | Dual element/cylindrical |
| Fuel Tank | No |
| Fuel Type | Gasoline |
| Oil Capacity | 2 qt |
| Low Oil Alert | No |
| Lubrication System | Full pressure |
| Ignition System | Electonic, digital CDI w/variable ignition timing |
| Governor System | Mechanical |
| Carburetor | 2-barrel, fuel cut solenoid, ier vent |
| Throttle Control | Manual |
| Choke Control | Manual |
| Max. RPM | 3,600 |
| Charging System Amps | 17 |
| Muffler Included | No |
| CARB Approval | No |
| Bolt Circle | 5, 6.5, 7.75 in |
| Mounting Base Length | 7.68 in |
| Mounting Base Width | 3.39 to 4.65 in |
| Dimensions L x W x H (in.) | 15.87 x 16.12 x 17.18 in |
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