2021 Honda Engines V-Twin Series GX630

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2021 Honda Engines V-Twin Series GX630

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.

Features may include:

Common Applications
  • Pressure washers
  • Commercial lawn and garden equipment
  • Tillers / cultivators
  • Generators
  • Forestry equipment
  • Construction / industrial equipment
  • Agricultural equipment
  • Small vehicles
  • Water pumps
Fuel Efficient, High Output 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
Smooth Performance
  • Integrated cylinder and head
  • Racing inspired forged steel connecting rods
Exceptionally Quiet
  • High capacity 36 blade cooling fan
  • Aluminum push rods with steel tips - lighter weight, lower vibration, and quieter operation
Proven Reliability
  • High capacity pump facilitates consistent oil delivery
  • Dual cylindrical air filter
  • Large diameter air intake for superior cooling
  • 3-Year Limited Warranty
  • Oil Alert
Easy To Use And Maintain
  • Hour meter available
  • Conveniently located controls, with several configurations available based on user preference
  • Automotive-type spin-on oil filter
Easy Starting
  • Automatic mechanical de-compression system
  • Variable ignition timing
Emissions Compliant
  • CARB and EPA certified
  • No catalyst necessary

Engine

  • Displacement:
    688 cm3
  • Bore:
    78 mm
  • Stroke:
    72 mm
  • Air Cleaner:
    Dual element
  • Ignition:
    System: Digital CDI with variable ignition timing

Dimensions

  • Weight:
    96.8 lb (44 kg)
  • Length:
    min: 15.9" (405 mm)
  • Oil Capacity:
    1.2 US qt (1.1l)

  • Lubrication:
    System: Forced lubrication
  • Governor:
    System: Centrifugal Mechanical
  • Width:
    min: 16.1" (410 mm)
  • Height:
    min: 17.2" ( 438 mm)
  • Engine Power:
    Net Output: 20.8 hp (15.5 kW) @ 3,600 rpm
  • Engine Type:
    Air-cooled 4-stroke OHV
  • PTO Type:
    Counterclockwise (from PTO shaft side)
  • Starter:
    System: Electric
  • Carburetion:
    Horizontal type, two barrel butterfly valve, internal vent
  • Compression Ratio:
    9.3:1
  • FUEL TYPE:
    Unleaded 86 octane or higher

Other

  • Manufacturer Type:
    General
  • Engine Torque:
    Net: 35.6 lbs ft (48.3 Nm) @ 2,500 rpm

Our Location


Supreme Power Sports
1905 Main St.
Lewiston, ID 83501