Honda GX630 QZB2 Horizontal V-Twin Engine

Honda GX630 QZB2 Horizontal V-Twin OHV Engine with Oil Filter Perpendicular to Crank, 688cc, 20.8 Net HP, 1″ x 2-29/32″ Shaft, Tapped 3/8-24, 1/4″ Keyway, Electric Start with 17-Amp Charging System, Control Box with Switch and Manual Controls, Low Oil Shutdown, Muffler Not Included, Model GX630RHQZB2

Engine Information

Brand

Honda

Model Number

GX630RHQZB2

Replaces Models

GX620-QZB2, GX630RQZB2, GX630QZB2, GX630 RQZB2, GX630 QZB2

Warranty

3 Year Residential | 3 Year Commercial

Available to California

Not Available to Ship to California

What’s in the Box

Includes engine, owner’s manual, regulator, sub-wire harness and exhaust gaskets.

Dimensions

Weight

111.0 lb

PTO Height

5-1/4″

Power

Power Output

20.8 HP @ 3600 RPM

Torque

35.6 lb-ft (48.3 Nm) @ 2500 rpm

Crankshaft

Orientation

Horizontal

Type

Straight

Diameter

1″

Length

2-29/32″

Dimensions

1″ x 2-29/32″

End Tapped Size

3/8″-24

Keyway

1/4″

Rotation Direction

Counter-Clockwise

Other Engine Specifications

Starter Type

Electric

Ignition System

Digital CDI with Variable Ignition Timing

Carburetor

Horizontal Two-Barrel Butterfly Valve with Internal Vent

Number of Cylinders

Two

Air Cleaner

Dual Element

Oil Capacity

2.1 qt

Low Oil Alert

Yes

Fuel

Unleaded 86 Octane or Higher

Fuel Tank Capacity

N/A

Fuel Pump

Diaphram

Governor System

Mechanical

Controls

Remote (Wire) Choke & Throttle

Bore x Stroke

78mm x 72mm

Compression Ratio

9.3 : 1

Charging System

17 Amp

Applications

Equipment Types

Chipper Shredders, Pressure Washers, Stump Grinders

Features

🞽Fuel economy is similar to fuel injection, with the simplicity of carburetion

🞽Digital CDI ignition system with variable timing

🞽Includes a rev limiter to protect against damage from over-revving

🞽Two barrel inner-vent carburetor for more precise fuel metering

🞽Hemispherical combustion chamber delivers rapid combustion

🞽Aluminum push rods with steel tips – lighter weight, lower vibration, and quieter operation