Honda GX630 Engine Information
(20 HP)
Engine Type ............................................... Air-cooled 4-stroke OHV
Bore x Stroke. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 X 72 mm
Displacement ............................................... 688 cm3
Net Power Output* .......................................... 20.8 hp (15.5 kW) @ 3,600 rpm
Net Torque ................................................ 35.6 lbs ft (48.3 Nm) @ 2,500 rpm
PTO Shaft Rotation .......................................... Counterclockwise (from PTO shaft side)
Compression Ratio .......................................... 9.3:1
Lamp/Charge coil options ..................................... 2.7A, 17A, 26A
Carburetor ................................................. Horizontal type, two barrel butterfly
valve, internal vent
Ignition System ............................................. Digital CDI with variable ignition timing
Starting System ............................................. Electric
Lubrication System .......................................... Forced lubrication
Governor System ........................................... Mechanical
Air cleaner ................................................. Dual element
Oil Capacity ................................................ 2.1 US qt (2.0l)
Fuel ................................................... Unleaded 86 octane or higher
Dry Weight ................................................. 96.8 lb (44 kg)
Engine Specifications, continued
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