Positioning:
        
        
            The Harley-Davidson Dyna Super Glide Custom represents a classic American cruiser aesthetic blended with modern performance, appealing to riders seeking a balance of style and rideability.
        
     
    
    
        
            Competitors 2008:
        
        
            Competed against models from Indian Motorcycles, Victory Motorcycles, and custom-builder choppers in the cruiser segment.
        
     
    
    
        
            Features:
        
        
            105th Anniversary styling cues, Twin Cam 96 engine, 6-speed transmission, custom paint schemes, chrome detailing, and comfortable ergonomics.
        
     
    
    
        
            Purpose:
        
        
            To provide detailed, step-by-step instructions for maintenance, repair, and troubleshooting of the 2008 Harley-Davidson FXDC Dyna Super Glide Custom.
        
     
 
    
    
    
        
            Engine:
        
        
            Twin Cam 96 (1584cc) V-Twin, including fuel system (EFI), ignition, lubrication, cooling, and exhaust
        
     
    
        
            Transmission:
        
        
            6-speed Cruise Drive, including clutch, primary drive, and final drive
        
     
    
        
            Chassis:
        
        
            Frame, suspension (forks, rear shocks), steering, wheels, and tires
        
     
    
        
            Brakes:
        
        
            Front and rear braking systems, including hydraulic components and ABS (if equipped)
        
     
    
        
            Electrical:
        
        
            Battery, charging system, ignition, lighting, instrumentation, starter, and accessory circuits
        
     
    
        
            Bodywork:
        
        
            Body panels, fenders, fuel tank, seat, handlebars, and trim components
        
     
    
        
            Diagnostics:
        
        
            Troubleshooting guides, diagnostic trouble codes (DTCs) related to EFI and electrical systems
        
     
    
    
        
            Scheduled Maintenance:
        
        
            Oil changes, filter replacements, belt inspections and adjustments, spark plug service, brake fluid service
        
     
    
        
            Engine Rebuild:
        
        
            Complete engine disassembly, inspection, repair, and reassembly procedures
        
     
    
        
            Transmission Service:
        
        
            Gearbox disassembly, inspection, and repair, clutch replacement
        
     
    
        
            Electrical Troubleshooting:
        
        
            Wiring diagrams, circuit testing, component diagnosis and replacement
        
     
    
        
            Suspension Service:
        
        
            Fork seal replacement, rear shock absorber service, steering head bearing adjustment
        
     
    
        
            Fuel System Service:
        
        
            Fuel injector cleaning, fuel pump testing, throttle body service
        
     
    
        
            Brake System Service:
        
        
            Brake pad replacement, caliper service, brake line bleeding, ABS bleeding procedures
        
     
    
        
            Wheel And Tire Service:
        
        
            Tire replacement, wheel balancing, bearing service
        
     
    
    
        
            Depth:
        
        
            Comprehensive from basic maintenance to full engine and transmission overhauls, including detailed diagnostic information and torque specifications.
        
     
 
    
    
    
        
            Engine Type:
        
        
            Air-cooled, Twin Cam 96 V-Twin
        
     
    
        
            Displacement:
        
        
            96 cu in (1584 cc)
        
     
    
        
            Bore X Stroke:
        
        
            3.75 in x 4.38 in (95.25 mm x 111.25 mm)
        
     
    
    
        
            Valvetrain:
        
        
            Overhead valves (OHV) with hydraulic, self-adjusting lifters
        
     
    
    
        
            Horsepower:
        
        
            Approximately 75-80 HP (est. at crank)
        
     
    
        
            Torque:
        
        
            Approximately 90-95 ft-lbs (est. at crank)
        
     
    
    
        
            Fuel Delivery:
        
        
            Electronic Sequential Port Fuel Injection (ESPFI)
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline, minimum 91 octane (Research Octane Number)
        
     
    
    
        
            Oil Type:
        
        
            Harley-Davidson 20W-50 SYN3 or equivalent motorcycle oil
        
     
    
        
            Oil Capacity:
        
        
            3.7 US quarts (3.5 Liters) with filter change
        
     
 
    
    
    
        
            Type:
        
        
            6-speed Cruise Drive
        
     
    
        
            Primary Drive:
        
        
            Plated, heavy-duty, rubber-mounted chain drive
        
     
    
    
    
        
            Clutch Type:
        
        
            Clutched, 9-plate, wet
        
     
    
        
            Transmission Fluid Type:
        
        
            Harley-Davidson Formula+ Transmission Oil (or equivalent)
        
     
    
        
            Transmission Fluid Capacity:
        
        
            2.8 US quarts (2.6 Liters)
        
     
 
    
    
    
        
            Crash Test Ratings:
        
        
            N/A (Motorcycle safety ratings are typically not standardized like automobiles)
        
     
    
    
        
            Braking System:
        
        
            Dual-action, four-piston front caliper and two-piston rear caliper. ABS was an optional feature on some 2008 models.
        
     
    
        
            Lighting:
        
        
            Halogen headlamp, LED tail light, and marker lights.
        
     
    
    
        
            Chassis Design:
        
        
            Steel, backbone frame and forged steel swingarm for rigidity.
        
     
    
        
            Suspension Design:
        
        
            Telescopic front fork with 49mm stanchions and rear coil-over shock absorbers with adjustable pre-load.
        
     
 
    
    
    
        
            Instrumentation:
        
        
            Analog speedometer, tachometer, odometer, trip meter, fuel gauge, and indicator lights. May include a clock and gear indicator.
        
     
    
        
            Audio System:
        
        
            Factory-installed audio system was not standard on all FXDC models but was available as an option. Typically AM/FM radio with CD player and handlebar-mounted controls.
        
     
    
    
        
            ABS:
        
        
            Anti-lock Braking System (ABS) was an optional feature for the 2008 model year.
        
     
    
    
        
            Diagnostic Port:
        
        
            Proprietary Harley-Davidson diagnostic connector for use with Digital Technician II or compatible scan tools.
        
     
 
    
    
    
        
            First Service:
        
        
            1,000 miles (1,600 km) or 6 months, whichever comes first.
        
     
    
        
            Subsequent Services:
        
        
            Every 5,000 miles (8,000 km) or 12 months for routine checks and fluid changes.
        
     
    
        
            Engine Oil Change:
        
        
            Every 5,000 miles (8,000 km) or 12 months.
        
     
    
        
            Transmission Oil Change:
        
        
            Every 10,000 miles (16,000 km) or 24 months.
        
     
    
        
            Primary Chain Tensioner Inspection:
        
        
            Inspect at 1,000 miles (1,600 km), 10,000 miles (16,000 km), 20,000 miles (32,000 km), etc. (Note: Hydraulic tensioner upgrade is common).
        
     
    
    
        
            Engine Oil:
        
        
            Harley-Davidson 20W-50 SYN3 or equivalent API SG/SH/SJ rated motorcycle oil.
        
     
    
        
            Transmission Fluid:
        
        
            Harley-Davidson Formula+ Transmission Fluid (or equivalent).
        
     
    
        
            Primary Chain Case Fluid:
        
        
            Harley-Davidson Formula+ Transmission Fluid (or equivalent).
        
     
    
        
            Brake Fluid:
        
        
            DOT 4 approved fluid.
        
     
    
        
            Fork Oil:
        
        
            Harley-Davidson Type E or Type H fork oil (viscosity varies by preference and application - consult manual for specifics).
        
     
    
    
        
            Primary Chain Tensioner:
        
        
            Early hydraulic chain tensioners were prone to wear, potentially causing noise and damage. Upgraded units are widely available and recommended.
        
     
    
        
            Rear Wheel Bearings:
        
        
            Some models experienced premature rear wheel bearing wear; regular inspection is advised.
        
     
    
        
            Paint Quality:
        
        
            Occasional reports of paint blistering or delamination, particularly on fuel tanks, though less common on special anniversary editions.
        
     
    
    
        
            Spark Plug Gap:
        
        
            0.035 - 0.045 in (0.89 - 1.14 mm)
        
     
    
        
            Belt Drive Tension:
        
        
            Refer to manual for specific deflection and adjustment procedure (typically 3/8" to 1/2" deflection).
        
     
    
        
            Tire Pressure Front:
        
        
            36 PSI (2.5 bar)
        
     
    
        
            Tire Pressure Rear:
        
        
            40 PSI (2.8 bar)
        
     
 
    
    
    
        
            Heritage:
        
        
            Harley-Davidson, founded in 1903, has a long and storied history in motorcycle manufacturing, synonymous with American freedom and culture.
        
     
    
    
        
            Dyna Lineage:
        
        
            The Dyna platform was introduced in 1991, evolving through various models. The Super Glide Custom (FXDC) emerged as a popular variant emphasizing custom styling within the Dyna family.
        
     
    
    
        
            105Th Anniversary:
        
        
            The 2008 model year marked Harley-Davidson's 105th anniversary, celebrated with special badging, unique paint schemes, and commemorative touches on select models, including the FXDC.
        
     
    
    
        
            Manufacturing:
        
        
            Assembly typically occurred at Harley-Davidson's York, Pennsylvania, or Kansas City, Missouri facilities.
        
     
 
    
    
    
        
            Industry Acclaim:
        
        
            Harley-Davidson motorcycles, particularly the Dyna line, are consistently recognized for their iconic styling, V-twin performance, and cultural significance in the motorcycle world.
        
     
    
        
            105Th Anniversary Design:
        
        
            The 105th Anniversary editions were met with enthusiasm for their unique aesthetic, blending heritage with a collector's appeal.