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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
Power
Power Output: 11.7 HP @ 3600 RPM
Torque: 19.5 lb-ft (26.5 Nm) @ 2500 rpm
Crankshaft
Orientation: Horizontal
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 Specs
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
Governor System: Centrifugal Mass
Controls: Manual Choke, Manual/Remote (Rod) Throttle
Bore x Stroke: 88mm x 64mm
Compression Ratio: 8.2 : 1
Muffler: Silent, Spark Arrester, Deflector
Features
- Digital CDI ignition system with variable timing
- Increased compression ratio, precision crankshaft design offers precise valve timing and optimal valve overlap for better fuel efficiency, and OHV design for increased efficiency and optimal power transfer
- Precision engineered components results 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
