Positioning:
        
        
            Premium cruiser, offering classic styling with modern performance and comfort
        
     
    
    
        
            Styling:
        
        
            Custom styling with swept-back handlebars, custom seat, chrome accents, and floorboards
        
     
    
        
            Engine:
        
        
            Harley-Davidson's Twin Cam 88B V-twin engine
        
     
    
        
            Ride Comfort:
        
        
            Long-distance touring capability combined with a comfortable riding position
        
     
 
    
    
    
        
            Engine Service:
        
        
            Complete engine disassembly, inspection, assembly, and troubleshooting (e.g., Twin Cam 88B)
        
     
    
        
            Fuel System:
        
        
            Fuel injection (EFI) system diagnosis and repair, fuel pump, injectors, sensors
        
     
    
        
            Ignition System:
        
        
            Ignition module, coils, spark plugs, troubleshooting
        
     
    
        
            Transmission:
        
        
            Primary drive, clutch, gearbox (5-speed Cruise Drive), troubleshooting, rebuilding
        
     
    
        
            Electrical System:
        
        
            Wiring diagrams, charging system, starting system, lighting, battery, diagnostic codes
        
     
    
        
            Braking System:
        
        
            Front and rear brake systems, hydraulic lines, calipers, master cylinders, ABS (if equipped)
        
     
    
        
            Suspension:
        
        
            Front fork (showa or similar), rear shock absorbers, adjustment, service
        
     
    
        
            Wheels And Tires:
        
        
            Wheel bearing service, tire replacement, balancing
        
     
    
        
            Frame And Body:
        
        
            Frame inspection, fairing, fenders, tank, seat, handlebars, controls
        
     
    
        
            Exhaust System:
        
        
            Exhaust pipes, mufflers, catalytic converter (if applicable)
        
     
    
    
        
            Maintenance:
        
        
            Scheduled maintenance, oil changes, filter replacements, lubrication
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic procedures for common and uncommon issues, fault code interpretation
        
     
    
        
            Repair:
        
        
            Step-by-step repair instructions for all major components
        
     
    
        
            Rebuilding:
        
        
            Complete engine and transmission rebuilding procedures
        
     
    
        
            Wiring Diagrams:
        
        
            Detailed electrical system wiring diagrams
        
     
    
        
            Torque Specifications:
        
        
            All critical fastener torque specifications
        
     
    
    
        
            Depth:
        
        
            Full factory-level technical detail for diagnostics, repair, and rebuilding
        
     
 
    
    
    
        
            Engine Type:
        
        
            Air-cooled, Twin Cam 88B V-twin
        
     
    
        
            Displacement:
        
        
            1450cc (88 cubic inches)
        
     
    
        
            Bore X Stroke:
        
        
            3.75 in. x 4.00 in. (95.25 mm x 101.6 mm)
        
     
    
    
    
        
            Horsepower:
        
        
            Approx. 65-70 HP (at crankshaft, varies by exhaust and tuning)
        
     
    
        
            Torque:
        
        
            Approx. 80-85 ft-lbs (at crankshaft, varies by exhaust and tuning)
        
     
    
    
        
            Fuel Delivery:
        
        
            Electronic Sequential Port Fuel Injection (ESPFI)
        
     
    
    
        
            Cooling Method:
        
        
            Air-cooled
        
     
 
    
    
    
        
            Length:
        
        
            Approx. 94.5 in. (2400 mm)
        
     
    
        
            Wheelbase:
        
        
            Approx. 64.5 in. (1638 mm)
        
     
    
    
        
            Dry Weight:
        
        
            Approx. 673 lbs (305 kg)
        
     
    
        
            Gross Vehicle Weight Rating Gvwr:
        
        
            Approx. 1050 lbs (476 kg)
        
     
    
    
        
            Fuel Tank Capacity:
        
        
            5.0 US gal (19.0 L)
        
     
    
    
        
            Seat Height Laden:
        
        
            Approx. 26.5 in. (673 mm)
        
     
 
    
    
    
        
            Crash Test Ratings:
        
        
            Motorcycle safety is not rated by agencies like NHTSA in the same way as automobiles. Focus is on rider protection and vehicle stability.
        
     
    
    
        
            Braking:
        
        
            Dual front disc brakes, single rear disc brake
        
     
    
        
            Lighting:
        
        
            Halogen headlight, LED tail light and brake light
        
     
    
    
        
            Frame Construction:
        
        
            Steel frame designed for stability and handling
        
     
 
    
    
    
        
            Audio System:
        
        
            Factory-equipped or aftermarket audio systems may be present, often with handlebar-mounted controls.
        
     
    
    
        
            Cruise Control:
        
        
            Likely equipped with electronic cruise control, a common feature on Road King models.
        
     
    
    
        
            Diagnostics:
        
        
            On-board diagnostics (OBD-II for motorcycles) capabilities allowing for error code retrieval via a diagnostic port.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Refer to manual (typically every 5,000 miles or annually, whichever comes first, for synthetic oil)
        
     
    
        
            Primary Chain Tensioner:
        
        
            Inspection required at regular intervals (critical component)
        
     
    
        
            Belt Drive Tension:
        
        
            Check and adjust as needed
        
     
    
    
        
            Engine Oil:
        
        
            Refer to manual for specific Harley-Davidson approved oils (e.g., SYN3, or recommended viscosity like 20W50)
        
     
    
        
            Transmission Oil:
        
        
            Refer to manual (e.g., Harley-Davidson Formula + Transmission Oil)
        
     
    
        
            Primary Chain Case Oil:
        
        
            Refer to manual (often same as transmission oil)
        
     
    
    
    
        
            Cam Chain Tensioners:
        
        
            Early Twin Cam 88 engines (prior to 2007, though this manual covers 2006) had hydraulic tensioners that could wear and require replacement with upgraded units.
        
     
    
        
            Fuel Line Connectors:
        
        
            Some early EFI models experienced issues with fuel line connectors, though updates were implemented.
        
     
    
        
            Battery Maintenance:
        
        
            Proper battery charging and maintenance are crucial for reliable starting.
        
     
 
    
    
    
        
            Heritage:
        
        
            Harley-Davidson is an iconic American motorcycle manufacturer with a rich history dating back to 1903.
        
     
    
    
        
            Softail Lineage:
        
        
            The Softail platform, introduced in 1983, features hidden rear suspension to mimic the look of a hardtail frame.
        
     
    
        
            Road King Custom Positioning:
        
        
            The Road King Custom (FLHRS) represents a more stylized, custom-oriented version of the classic Road King, emphasizing comfort and aesthetics.
        
     
    
    
        
            Production Period:
        
        
            The Softail platform, including the FLHRS model, has been in continuous production with evolutionary updates.