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)