Honda GX390 QA2 Horizontal Engine

Honda GX390 QA2 Horizontal OHV Engine, 389cc, 11.7 Net HP, 1″ x 3-31/64″ Crankshaft, Tapped 3/8-24UNF 2BTAP, Recoil Start, Model GX390UT2QA2

Engine Information

Brand

Honda

Model Number

GX390UT2QA2

Replaces Models

GX390U1QA2, GX390UT1 QA2, GX390UT1-QA2, GX390K1-QA2, GX390UT2QA2, GX390UT2QA2, GX390K1QA2

Warranty

3 Year Residential | 3 Year Commercial

Available to California

Not Available to Ship to California

Dimensions

Weight

78.0 lb

Power

Power Output

11.7 HP @ 3600 RPM

Torque

19.5 lb-ft (26.5 Nm) @ 2500 rpm

Crankshaft

Orientation

Horizontal

Type

Straight

Diameter

1″

Length

3-31/64″

Dimensions

1″ x 3-31/64″

End Tapped Size

3/8-24UNF 2BTAP

Keyway

1/4″

Rotation Direction

Counter-Clockwise

Other Engine Specifications

Starter Type

Recoil

Ignition System

Digital CDI with Variable Ignition Timing

Carburetor

Butterfly Float

Number of Cylinders

One

Cylinder Bore

Cast Iron Sleeve

Air Cleaner

Dual Element

Oil Capacity

1.16 qt

Low Oil Alert

Yes

Fuel

Unleaded 86 Octane or Higher

Fuel Tank Capacity

6.4 qt

Fuel Pump

N/A

Governor System

Centrifugal Mass

Controls

Manual Choke, Manual/Remote (Rod) Throttle

Bore x Stroke

88mm x 64mm

Compression Ratio

8.2 : 1

Charging System

N/A

Muffler

Silent, Spark Arrester, Deflector

Applications

Equipment Manufacturers

Billy Goat, Brave, Huskee, Little Wonder, MacKissic, MTD, NorthStar, Ryan, Simpson

Equipment Types

Chipper Shredders, Concrete Saws, Grain Augers, Hydraulic Pumps, Lawn Sprayers, Leaf Blowers, Lawn Vacuums, Log Splitters, Overseeders, Pressure Washers, Stucco/Mortar Mixers, Transport Augers

Features

🞽Digital CDI ignition system with variable timing

🞽Increased compression ratio, Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficency, and OHV design for increased efficiency and optimal power transfer

🞽Precision engineered components result in lower vibration

🞽Large capacity, multi-chamber exhaust system, Improved camshaft and muffler reduce overall engine noise by up to 5 dB

🞽Simple throttle control, large fuel tanks, dual oil drains and fill, and easily accessible spark plug

🞽Automatic mechanical de-compression system