If you're using a 12 volt fuel pump with this engine, it must be rated at 1.4 PSI with a minimum 4 GPH output.
Honda Engines, V-TWIN HORIZONTAL 630CC RQAF1 Engine Displacement 688 cc, Engine Type GX Series OHV V-twin Commercial-duty, Shaft Diameter 1 in, Model# GX630RHXQAF1

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Shipping:
Factory shippedStore Pickup:
Not available - online only
- Keyswitch
- 688cc air-cooled, 4-stroke OHV engine
- Not for sale in CA
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Description
Key Specs
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Q & A
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Product Summary
What's Included
- (1) Engine, Model# GX630RHQAF1
Features + Benefits

- Keyswitch
- 688cc air-cooled, 4-stroke OHV engine
- Not for sale in CA
Key Specs
| Attribute | Specification |
|---|---|
item# | 166128 |
Brand | Honda Engines |
Manufacturer's Warranty | 3 year limited warranty |
Ship Weight | 113.0 LB |
Engine Displacement | 688 cc |
Engine Type | GX Series OHV V-twin Commercial-duty |
Shaft Diameter | 1 in |
Shaft Length | 2.9 in |
Start Type | Electric |
Shaft Keyway | 0.25 in |
Net Torque | 35.6 ft-lbs. |
Crankshaft | Q-type |
PTO Height | 5.25 in |
Cylinders (qty.) | 2 |
Cylinder Bore | Integrated |
Net Power Output | 20.8 HP |
Compression Ratio | 9.3:1 |
| Attribute | Specification |
|---|---|
Fuel Tank | No |
Oil Capacity | 2 qt |
Low Oil Alert | No |
Shaft Rotation (From PTO Shaft Side) | Counter Clockwise |
Governor System | Mechanical |
Ignition System | Electonic, Digital CDI W/variable Ignition Timing |
Carburetor | 2-barrel, Fuel Cut Solenoid, Inner Vent |
Lubrication System | Full Pressure |
Cooling System | Air |
Bore | 3.1 in |
Stroke | 2.8 in |
Air Cleaner Type | Dual Element |
Choke Control | Manual |
Throttle Control | Manual |
Charging System Amps | 17 |
Muffler Included | No |
Reviews
Questions & Answers
Questions
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· 10 years ago
What is the recommended fuel pressure from a 12v fuel pump to this motor
-
ProductExpert11· 10 years ago
Helpful?
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HondaSpecialist· 10 years ago
1.4 psi, 4 gallons per hour minimum. -Robert@Honda
Helpful?
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· a year ago
Where is model number located on motor
1 answer-
ProductExpert11· a year ago
The model number is located on a sticker or stamped directly on the side of the engine block near the oil drain plug.
Helpful?
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· 2 years ago
Shaft size
1 answer-
ProductExpert13· 2 years ago
The shaft length is 2.9'' and the diameter is 1'' with a 1/4'' keyway.
Helpful?
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· 2 years ago
How many hp is this motor?
1 answer-
ProductExpert13· 2 years ago
The net power output is 20.8 HP.
Helpful?
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· 2 years ago
where is ignition switch?
1 answer-
ProductExpert6· 2 years ago
The ignition switch would be on the right side of the engine.
Helpful?
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· 5 years ago
What is the model # for the muffler that fits? Thanks David
1 answer-
ProductExpert11· 5 years ago
The engine will work with muffler model numbers MUF-0560.SIL (601099), MUF-0560R.SIL (601105), V2MFLRHIL (601093) and V2MFLRHIR (601094).
Helpful?
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· 11 years ago
What is the little electric box that came with the engine?
I bought this product from y'all last month and am installing it this weekend.
1 answer-
ProductExpert10· 11 years ago
The electric start control box on the side of this engine features an on-off and start switch, a choke, an oil alert indicator, and a hour meter.
Helpful?
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Accessories We Recommend
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Warranty
Manufacturer's Warranty
3 year limited warranty
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Repair Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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$1929.99Shipping:
Factory shippedStore Pickup:
Not available - online only
- $1929.99
Shipping:
Factory shippedStore Pickup:
Not available - online only
- $1829.99
Shipping:
Factory shippedStore Pickup:
Not available - online only
Specifications
688 cc
688 cc
688 cc
GX Series OHV V-twin Commercial-duty
GX Series OHV V-twin Commercial-duty
GX Series OHV V-twin Commercial-duty
1 in
1 in
1 in
2.9 in
2.9 in
2.9 in
Electric
Electric
Electric
0.25 in
0.25 in
0.25 in
35.6 ft-lbs.
35.6 ft-lbs.
35.6 ft-lbs.
Q-type
Q-type
Q-type
5.25 in
5.25 in
5.25 in
2
2
2
Integrated
Integrated
Integrated
20.8 HP
20.8 HP
20.8 HP
9.3:1
9.3:1
9.3:1
No
No
No
2 qt
2 qt
2 qt
No
Yes
Yes
Counter Clockwise
Counter Clockwise
Counter Clockwise
Mechanical
Mechanical
Mechanical
Electonic, Digital CDI W/variable Ignition Timing
Electonic, Digital CDI W/variable Ignition Timing
Electonic, Digital CDI W/variable Ignition Timing
2-barrel, Fuel Cut Solenoid, Inner Vent
2-barrel, Fuel Cut Solenoid, Inner Vent
2-barrel, Fuel Cut Solenoid, Inner Vent
Full Pressure
Full Pressure
Full Pressure
Air
Air
Air
3.1 in
3.1 in
3.1 in
2.8 in
2.8 in
2.8 in
Dual Element
Dual Element
Dual Element
Manual
Remote
Remote
Manual
Remote
Remote
17
20
3
No
No
No
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