Positioning:
        
        
            Essential technical guide for owners and mechanics of the 2006 Harley-Davidson FLHRSI Road King Custom, enabling independent maintenance and repair.
        
     
    
    
        
            Comparison:
        
        
            Offers factory-level documentation, superior to generic repair guides or fragmented online information.
        
     
    
    
        
            Feature 1:
        
        
            Official factory service manual content.
        
     
    
        
            Feature 2:
        
        
            Complete A-Z coverage for all models and repairs.
        
     
    
        
            Feature 3:
        
        
            Detailed step-by-step instructions, diagrams, and wiring schematics.
        
     
    
        
            Feature 4:
        
        
            Cost savings by enabling DIY repairs.
        
     
    
        
            Feature 5:
        
        
            Instant download for immediate access.
        
     
 
    
    
    
        
            Engine Service:
        
        
            Complete engine overhaul, tuning, and component repair
        
     
    
        
            Fuel System:
        
        
            Fuel injection system diagnostics and repair, fuel pump, injectors, throttle body
        
     
    
        
            Electrical System:
        
        
            Wiring schematics, ignition system, charging system, lighting, battery
        
     
    
        
            Drivetrain:
        
        
            Transmission, clutch, final drive, belt drive system
        
     
    
        
            Suspension:
        
        
            Front fork service, rear shock absorber replacement and adjustment
        
     
    
        
            Brakes:
        
        
            Brake system diagnostics, hydraulic system, component replacement (pads, rotors, lines)
        
     
    
        
            Chassis And Frame:
        
        
            Frame inspection, steering head, swingarm
        
     
    
        
            Bodywork And Trim:
        
        
            Fairings, fenders, fuel tank, seating, controls, accessories
        
     
    
        
            Diagnostics And Troubleshooting:
        
        
            Systematic troubleshooting guides for common and complex issues
        
     
    
    
        
            Maintenance:
        
        
            Scheduled maintenance, oil changes, filter replacements, lubrication
        
     
    
        
            Repair:
        
        
            Step-by-step repair instructions for all covered systems
        
     
    
        
            Disassembly And Reassembly:
        
        
            Detailed procedures for component removal and installation
        
     
    
        
            Adjustments:
        
        
            Carburetor/fuel injection, clutch, brakes, suspension adjustments
        
     
    
        
            Troubleshooting Guides:
        
        
            Flowcharts and diagnostic trees for identifying and resolving issues
        
     
    
    
        
            Depth:
        
        
            Factory-level, covering everything from basic maintenance to complete rebuilds and diagnostics
        
     
    
        
            Detail Level:
        
        
            Comprehensive step-by-step instructions with diagrams and illustrations
        
     
    
        
            Target Audience:
        
        
            Professional technicians and experienced DIY mechanics
        
     
 
    
    
    
        
            Engine Type:
        
        
            V-Twin, Air-Cooled, Twin Cam 96
        
     
    
        
            Displacement:
        
        
            1584 cc (96 cubic inches)
        
     
    
        
            Bore X Stroke:
        
        
            3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)
        
     
    
    
    
        
            Torque:
        
        
            92.5 ft-lbs @ 3500 RPM (approximate, varies slightly by source)
        
     
    
        
            Horsepower:
        
        
            Not officially rated, but estimated in the 65-70 HP range
        
     
    
    
        
            Fuel Delivery:
        
        
            Electronic Sequential Port Fuel Injection (ESPFI)
        
     
    
        
            Fuel Type:
        
        
            Premium Unleaded Gasoline (91 octane or higher recommended)
        
     
    
    
        
            Ignition System:
        
        
            High-performance, electronic ignition module
        
     
 
    
    
    
        
            Crash Safety:
        
        
            Not applicable in the same manner as automobiles; focus is on rider control and stability.
        
     
    
    
        
            Braking System:
        
        
            Linked, two-piston caliper front and rear brakes
        
     
    
        
            Lighting:
        
        
            Halogen headlamp, LED taillight, marker lights
        
     
    
    
        
            Chassis Design:
        
        
            Steel, backbone frame and swingarm for stability.
        
     
 
    
    
    
        
            Audio System:
        
        
            Factory-installed or optional radio/audio system (details vary by specific bike configuration)
        
     
    
        
            Cruise Control:
        
        
            Standard feature on touring models.
        
     
    
    
        
            ABS:
        
        
            Optional or standard depending on specific configuration and market.
        
     
    
    
        
            Diagnostic Ports:
        
        
            Proprietary Harley-Davidson diagnostic connectors (detailed in manual for access and interface)
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Refer to manual for specific interval (typically 5,000 miles or annually)
        
     
    
        
            Primary Chain Adjust:
        
        
            Refer to manual for specific interval (typically 10,000-20,000 miles)
        
     
    
        
            Spark Plug Replacement:
        
        
            Refer to manual for specific interval (typically 15,000-20,000 miles)
        
     
    
    
        
            Engine Oil:
        
        
            Harley-Davidson recommended 20W-50 motorcycle oil (e.g., Harley-Davidson SYN3 or equivalent)
        
     
    
        
            Primary Chain Case Oil:
        
        
            Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant or equivalent
        
     
    
        
            Transmission Oil:
        
        
            Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant or equivalent
        
     
    
        
            Brake Fluid:
        
        
            DOT 4 Hydraulic Brake Fluid (refer to manual for specific type)
        
     
    
        
            Fork Oil:
        
        
            Harley-Davidson Suspension Fork Oil (refer to manual for specific weight)
        
     
    
    
        
            Known Issue 1:
        
        
            Cam chain tensioner wear (early Twin Cam models), though often addressed by this era. Manual will detail inspection.
        
     
    
        
            Known Issue 2:
        
        
            Harley-Davidson's ESPFI system can require specific diagnostic tools and knowledge, which this manual provides.
        
     
 
    
    
    
        
            Heritage:
        
        
            Harley-Davidson boasts a long history of motorcycle manufacturing, known for its iconic designs and V-twin engines.
        
     
    
    
        
            Evolution Timeline:
        
        
            The Road King platform has been a staple of Harley-Davidson's Touring line since the mid-1990s, evolving with engine upgrades and styling refinements. The FLHRSI 'Custom' variant typically features unique styling elements and accessories.
        
     
    
    
        
            Production Period:
        
        
            The Twin Cam 96 engine was introduced in 2007, so the 2006 models, including the FLHRSI, likely feature the Twin Cam 88B engine in many markets or specific configurations. This manual should clarify the exact engine installed for 2006.