The engine shaft is not tapered. The engine will have a straight shaft with a tapped end.
Honda Engines, HONDA V-TWIN HORIZ 630CC HXQZB3 Engine Displacement 688 cc, Engine Type GX Series OHV V-twin Commercial-duty, Shaft Diameter 1 in, Model# GX630RHXQZB3
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$2089.99
- 900 configuration reduces vibration and allows a compact footprint
- Forged steel crankshaft and integrated cylinder head
- Fewer parts for better durability
- Digital CDI ignition coil ensures improved fuel economy and lowered emissions
- Improved air cleaning for filter change intervals that are five times longer
See full description
Price for all four:
$2664.96
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Specifications
Specifications
Honda Engines, HONDA V-TWIN HORIZ 630CC HXQZB3 Engine Displacement 688 cc, Engine Type GX Series OHV V-twin Commercial-duty, Shaft Diameter 1 in, Model# GX630RHXQZB3
Honda Engines, V-TWIN HORIZONTAL 630CC RQXA, Engine Displacement 688 cc, Engine Type GX Series OHV V-twin Commercial-duty, Shaft Diameter 1 in, Model# GX630RHXQXA
Honda Engines GX Series 688cc Horizontal OHV V-Twin Engine, Model# GX630RHXQZE
Honda Engines, HONDA V-TWIN HORIZ GX690RHXTAF, Engine Displacement 688 cc, Engine Type GX Series OHV V-twin, Shaft Diameter 1-1/8 in, Model# GX690RHXTAF
Engine Displacement
Same
688 cc
688 cc
688 cc
688 cc
Engine Type
Same
GX Series OHV V-twin Commercial-duty
GX Series OHV V-twin Commercial-duty
GX Series OHV V-twin Commercial-duty
GX Series OHV V-twin
Shaft Diameter
Same
1 in
1 in
1 in
1-1/8 in
Shaft Length
Same
2.9 in
2.9 in
2.9 in
3.5 in
Start Type
Same
Electric
Electric
Electric
Electric
Shaft Keyway
Same
0.25 in
0.25 in
0.25 in
0.25 in
Net Torque
Same
35.6 ft-lbs.
35.6 ft-lbs.
35.6 ft-lbs.
35.6 ft-lbs.
Crankshaft
Same
Q-type
Q-type
Q-type
T-type
PTO Height
Same
5.25 in
5.25 in
5.25 in
-
Cylinders (qty.)
Same
2
2
2
2
Cylinder Bore
Same
Cast Iron
Integrated
Integrated
Integrated
Net Power Output
Same
20.8 HP
20.8 HP
20.8 HP
22.1 HP
Compression Ratio
Same
9.3:1
9.3:1
9.3:1
9.3:1
Fuel Tank
Same
No
No
No
No
Oil Capacity
Same
2.1 qt
2 qt
2 qt
2 qt
Low Oil Shutdown
Same
Oil Alert
-
-
No
Low Oil Alert
Same
Yes
Yes
Yes
Yes
Shaft Rotation (From PTO Shaft Side)
Same
Counter Clockwise
Counter Clockwise
Counter Clockwise
Counter Clockwise
Governor System
Same
Mechanical
Mechanical
Mechanical
Mechanical
Ignition System
Same
Electrical, Digital CDI W/variable Ignition Timing
Electonic, Digital CDI W/variable Ignition Timing
Electonic, Digital CDI W/variable Ignition Timing
Electrical, Digital CDI W/variable Ignition Timing
Carburetor
Same
2 Barrel, Fuel-cut Solenoid, Inner Vent
2-barrel, Fuel Cut Solenoid, Inner Vent
2-barrel, Fuel Cut Solenoid, Inner Vent
(2) Barrel, Fuel Cut Solenoid, Inner Vent
Lubrication System
Same
Forced Lubrication
Full Pressure
Full Pressure
Full Pressure
Bearing Type
Same
Ball
-
-
Ball
Auto Compression Release
Same
Yes
-
-
-
Cooling System
Same
Air
Air
Air
Air
Bore
Same
3.1 in
3.1 in
3.1 in
3.1 in
Stroke
Same
2.8 in
2.8 in
2.8 in
2.8 in
Air Cleaner Type
Same
Dual Element
Dual Element
Dual Element
Dual Element
Choke Control
Same
Manual
Remote
Manual
Manual
Throttle Control
Same
Manual
Remote
Manual
Manual
Fuel Filter
Same
Yes
-
-
-
Charging System Amps
Same
17
3
2.7
20
Muffler Included
Same
No
No
No
No
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