• gx690
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Overview

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Horizontal Shaft Honda Engine: GX690-RBAF, 22.1 Net HP

  • OHV V-Twin, 688cc

 A V-Twin, OHV, horizontal shaft commercial grade engine featuring legendary Honda durability and reliability for applications demanding smooth and quiet operation. Honda V-Twin engines incorporate proven engine technology and design innovations to make them the most advanced power source available for OEM and replacement use.

Common Applications: pressure washers, commercial lawn/garden equipment, tillers/cultivators, generators, small vehicles, water pumps, construction, agricultural, and industrial equipment.

View: GX690 Owner’s Manual

Product Features:

Fuel Efficient Operation

  • fuel economy is similar to fuel injection, with the simplicity of carburation
  • digital CDI ignition system with variable timing
  • includes a rev limiter to protect against damage from over-reving
  • 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 cransshaft bearings

Smooth Preformance

  • integrated cylinder head and design
  • 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 upon user preference
  • automotive-type spin on filter

Easy Starting

  •  automatic mechanical de-compression system
  • variable ignition timing

Emissions Compliant

  • CARB and EPA certified
  • no catalyst necessary

Available Options

  • high capacity charging systems
  • variety of control box configurations
  • hour meter
  • dry fuel versions

Product Specifications:

  • Engine Type: Air-Cooled, 4-Stroke OHV
  • Bore Stroke: 78 mm X 72 mm
  • Displacement: 688 cc
  • Net Power Output: 22.1 HP @ 3600 RPM
  • Net Torque: 35.6 @ 2500 RPM
  • Crankshaft Diameter: 1-7/16″
  • Crankshaft Length: 4-3/8″
  • Crankshaft End Tapped Size: 7/16-20 UNF
  • Crankshaft Keyway Width: 
  • Oil Capacity: 2.1 quarts
  • Fuel Tank Capacity: No Fuel Tank
  • Electrical: 12 V / 17 amp charging
  • Compression Ratio: 9.3:1
  • Carburetor: 
  • Max RPM: 3600
  • Starting System: Electric
  • Lubrication System: Forced Lubrication
  • Governor System: Mehanical
  • Air Cleaner: Dual Element
  • Muffler: Not Included
  • Warranty: 3 Year Limited Manufacturer’s Warranty
  • Shipping Weight: 105 lbs

Alternate Model Numbers:

  • GX690RBAF
  • GX690BAF
  • GX690-BAF

Muffler and gas tank not included

Mufflers available…Can be added in the dropdown box at top of page if needed.

  • VHRM6 (TOP MOUNT/RIGHT EXHAUST)
  • VHLM6 (TOP MOUNT/LEFT EXHAUST)
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SKU: GX690-BAF
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GX690RBAF HONDA ENGINE

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Manual 20 Amp / Control Box / 4-3/8″ Long x 1- 7/16″ Shaft 22.1 net HP

Specifications
Weight 110 lbs
Dimensions 17 × 16 × 18 in
Engines

GX Series (Horizontal Shaft)

Manufacturers

Honda MFG

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