🏷️ Basic Information

Make:

Harley-Davidson

Model:

FXDC Dyna Super Glide Custom

Year:

2008

Special Edition:

105th Anniversary

Model Code:

FXDC

👋 Introduction

Positioning:

The Harley-Davidson FXDC Dyna Super Glide Custom 105th Anniversary represented a premium cruiser offering in 2008, blending classic styling with custom touches. It appealed to riders seeking a distinctive Harley-Davidson experience.

Competitors:

Competed with models from Indian Motorcycle, Victory Motorcycles, and other custom-oriented V-twin cruisers from Japanese manufacturers.

Anniversary Package:

Exclusive 105th Anniversary badges, paint schemes, and trim specific to the model year.

Custom Styling:

Chrome accents, custom seat, pulled-back handlebars, and a distinctive fuel tank design.

Value Proposition:

This factory service manual provides the most accurate and complete information for maintaining, diagnosing, and repairing the 2008 Harley-Davidson FXDC Dyna Super Glide Custom, crucial for preserving its performance and value.

📋 Manual Details

Primary Coverage:

Service, Repair, Maintenance, Troubleshooting, Diagnostics

Secondary Coverage:

Wiring Diagrams, Specifications, Torque Values, Component Locations

Estimated Pages:

Approximately 600-800 pages (typical for a complete factory service manual)

Type:

Factory Service Repair Manual

Language:

English

Format:

Downloadable PDF

📖 Manual Coverage

Powertrain:

Engine assembly, disassembly, tuning, lubrication, cooling system, fuel system (carburetor/EFI), ignition system, exhaust system

Transmission:

Clutch, primary drive, transmission assembly, final drive (belt)

Chassis:

Frame, suspension (front forks, rear shocks), steering, wheels, tires, brakes (front and rear), swingarm

Electrical:

Battery, charging system (alternator, regulator), starting system, lighting, instruments, ignition switch, alarm system, wiring diagrams for all components

Bodywork And Fittings:

Body panels, fenders, fuel tank, seat, handlebars, controls, mirrors, saddlebags (if applicable), fairings (if applicable)

Maintenance:

Scheduled maintenance, oil changes, filter replacements, spark plug service, brake fluid flush, clutch adjustment, chain/belt inspection and adjustment

Repair:

Engine rebuilding, transmission overhauls, suspension fork repair, brake caliper rebuilding, electrical component replacement, bodywork repairs

Troubleshooting:

Diagnostic procedures for common and uncommon issues, fault code interpretation (if applicable), step-by-step troubleshooting guides

Special Procedures:

Performance tuning, emissions system service, safety systems checks, accessory installation guidelines

Depth:

Comprehensive, covering from basic adjustments to full engine and transmission rebuilds. Includes detailed diagrams and exploded views.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text for quick access to information

Quality:

High-resolution scans for clear diagrams and text, printable

Binding:

N/A (Digital Download PDF)

Paper:

N/A (Digital Download PDF)

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 96 V-Twin

Displacement:

96 cubic inches (1584 cc)

Bore X Stroke:

3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)

Compression Ratio:

9.0:1

Fuel System:

Electronic Sequential Port Fuel Injection (ESPFI)

Ignition:

High-performance, ignition module with knock sensor

Oil Capacity:

3.5 US qt. (3.3 L) (with filter change)

Horsepower:

Estimated 70-75 HP (at crankshaft, varies with tuning)

Torque:

Approximately 90-95 ft-lbs (at crankshaft, varies with tuning)

🔧 Transmission

Transmission Type:

6-speed Cruise Drive

Primary Drive:

Duplex chain, 34/46 ratio

Final Drive:

Belt, 32/66 ratio

Clutch:

Clutched, 9-plate, wet

Gear Ratios:

1st: 9.315, 2nd: 6.653, 3rd: 4.948, 4th: 3.831, 5th: 3.156, 6th: 2.790

Transmission Oil:

Harley-Davidson Transmission Fluid (P/N 94624-97 for 4-speed, check manual for 6-speed specific, often SAE 75W-90 Synthetic Gear Lubricant)

Primary Chain Case Oil:

Harley-Davidson Primary Chain Case Lubricant (P/N 94607-04, or SAE 20W-50 motor oil for pre-2007 models, check manual for 2008 FXDC)

📐 Dimensions

Length:

90.4 in. (2296 mm)

Width:

35.5 in. (902 mm)

Height:

49.6 in. (1260 mm)

Wheelbase:

63.7 in. (1618 mm)

Dry Weight:

Approx. 672 lbs (305 kg)

Gross Vehicle Weight Rating Gvwr:

Approx. 1035 lbs (469 kg)

Fuel Tank Capacity:

5.0 US gal. (19 L)

Front Tire:

100/90-19 57H BW

Rear Tire:

160/70-17 73V BW

Wheel Type:

Cast aluminum with custom styling

🛡️ Safety Features

Crash Test Ratings:

N/A (Motorcycle safety ratings differ from automotive; focus on operational safety features)

Braking System:

Hydraulic disc brakes, front and rear. Dual front discs and single rear disc typical for FXDC.

ABS:

Optional Anti-lock Braking System (ABS) was available for this model.

Lighting:

Halogen headlamp, LED tail lamp, front and rear turn signals

Handlebar Controls:

Ergonomically designed controls for rider comfort and safety

💡 Technology Features

Audio System:

Optional accessory audio systems were available. Base models may not have integrated infotainment.

ABS:

As mentioned in Safety, ABS was an optional feature.

Diagnostics:

Modern Harley-Davidsons utilize on-board diagnostics. This manual provides access to diagnostic codes and procedures, often requiring specific Harley-Davidson diagnostic tools (e.g., Digital Technician).

🔧 Maintenance

First Service:

1,000 miles (1,600 km) or 6 months

Subsequent Service:

Every 5,000 miles (8,000 km) or 12 months thereafter

Major Overhauls:

Refer to manual for specific component overhaul intervals (e.g., clutch, suspension)

Engine Oil:

Harley-Davidson SYN3 Synthetic Motorcycle Oil (P/N 94600004) or equivalent SAE 20W-50 motorcycle-specific oil.

Brake Fluid:

DOT 4 Brake Fluid

Coolant:

N/A (Air-cooled engine)

Cam Chain Tensioner:

Early Twin Cam models (pre-2007) had issues with cam chain tensioner wear. While 2008 models feature upgraded hydraulic tensioners, manual inspection and replacement with higher-quality aftermarket units are recommended as preventative maintenance by some owners.

Crankshaft Position Sensor:

Sporadic issues with the crank position sensor can lead to stalling or no-start conditions. The manual provides diagnostic steps.

Charging System:

Rotor and stator failures can occur over time, affecting battery charging. The manual details testing procedures.

Belt Tension:

Regular inspection and adjustment of the final drive belt tension is crucial for longevity.

Spark Plugs:

Replacement at recommended intervals to ensure optimal combustion and performance.

📚 Vehicle History

Heritage:

Harley-Davidson, founded in 1903, is an iconic American motorcycle manufacturer renowned for its V-twin engines and distinct styling.

Dyna Lineage:

The Dyna platform, introduced in 1991, offered a blend of classic Big Twin styling with more modern handling characteristics compared to the Softail line. The FXDC Super Glide Custom was a popular model within the Dyna range.

Production Years:

The Dyna Super Glide Custom (FXDC) was produced for several years leading up to and including 2008. The 105th Anniversary edition specifically marks the 2008 model year.

Manufacturing Location:

Harley-Davidson motorcycles, including the Dyna line, were primarily manufactured in the United States.

🏆 Awards & Recognition

Industry Awards:

Harley-Davidson motorcycles, including the Dyna line, have consistently received accolades for their styling, V-twin engine performance, and rider experience within the cruiser segment. Specific awards for the 2008 FXDC are not widely documented in general publications but it was a popular model. The 105th Anniversary editions are collectible.

Owner Satisfaction:

Harley-Davidson generally enjoys high owner satisfaction, particularly from riders who appreciate the brand's heritage and customization potential.