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HONDA GX660

Raising the bar. On everything.
Honda V-twin engines offer higher horsepower, improved adaptability, quiet operation, and greater fuel efficency. Not to mention a 3 year warranty.

Common Applications
  • Pressure washers
  • Commercial lawn and garden equipment
  • Tillers / cultivators
  • Generators
  • Forestry equipment
  • Construction / industrial equipment
  • Agricultural equipment
  • Small vehicles
  • Water pumps

Features & Benefits

Specifications

Fuel Efficient Operation
  • 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
  • Insert style rod bearings


High Output Performance
  • Hemispherical combustion chamber delivers rapid combustion
  • 9.3:1 compression ratio generates high power output without the need for premium fuel
  • Forged steel crankshaft
  • Pressure fed crankshaft bearings
MODEL  GX660
Type  Air cooled 4-stroke OHV
Total Displacement  688 cm³
Bore & Strike  78mm x 72 mm
Max Horsepower (Gross)  21.5 hp (16.0 kW) @ 3,600 rpm
Max Torque  35.6 lb-ft (48.3 Nm) @ 2,500 rpm
Compression Ratio  9.3: 1
Ignition System  Digital CDI with variable igntion timing
Carburetor  Horizontal-type, two barrel butterfly valve, internal vent
Air Cleaner  Dual Element
Lubricating System  Forced Lubrication
Oil Capacity  2.0 US qt (1.9 liter)
Starting System  Electric
Fuel Used  Automotive unleaded gasoline (minimum 86 pump octane)
   March  29, 2024