🏷️ Basic Information

Make:

Harley-Davidson

Model Line:

Dyna

Model Year:

2008

Specific Models Covered:

FXD Dyna Super Glide, FXDC Dyna Super Glide Custom, FXDL Dyna Low Rider, FXDWG Dyna Wide Glide, FXDB Dyna Street Bob, FXDF Dyna Fat Bob

👋 Introduction

Target Audience:

Harley-Davidson Dyna owners and independent motorcycle repair shops

Value Proposition:

Provides professional-level repair information at a fraction of dealer costs, empowering DIY mechanics and independent shops

Manual Benefit:

Enables users to service or rebuild their 2008 Harley Dyna like a pro, covering a wide range of critical systems

📋 Manual Details

Primary Focus:

Service and Repair

Estimated Pages:

Likely 500+ pages (typical for comprehensive service manuals of this era)

Type:

Service and Repair Manual

Language:

English

Format:

Likely Printed Book (standard for this product description), though digital versions might exist

📖 Manual Coverage

Engine:

Comprehensive engine service, rebuild, tuning, diagnostics

Transmission:

Service, repair, and rebuild of the transmission and clutch systems

Fuel System:

Fuel injection (EFI) and carburetor systems (if applicable to specific models), fuel pump, lines, tank

Electrical Diagrams:

Detailed wiring diagrams for all electrical components and systems

Chassis:

Frame, suspension (front fork, rear shocks), steering, wheels, and tires

Brakes:

Brake system service, bleeding, component replacement (calipers, master cylinders, lines)

Bodywork:

Fenders, fuel tank, seat, handlebars, controls, and related components

Maintenance Info:

Routine maintenance procedures and schedules

Specifications:

General technical specifications for all covered models

Troubleshooting:

Diagnostic procedures for common problems

Performance Tuning:

Covers basic performance tuning, air filter replacement, exhaust modifications, and EFI mapping basics.

Suspension:

Front fork service (fluid changes, seal replacement, spring inspection) and rear shock absorber service/replacement.

Maintenance:

Oil changes, filter replacements, spark plug service, chain/belt adjustment, brake fluid changes

Repair:

Engine rebuilds, transmission overhauls, suspension component replacement, electrical system repairs

Diagnostics:

Troubleshooting common performance issues, electrical faults, and mechanical problems

Rebuilds:

Complete engine and transmission teardown and reassembly guidance

Wheel And Tire Service:

Tire replacement, wheel balancing, bearing service, and brake rotor maintenance.

Depth:

Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds

📊 Manual Specifications

Format:

Likely Printed Book, potentially CD-ROM or PDF for some vendors

Searchability:

If a digital version (PDF), expect fully searchable text for efficient information retrieval.

Quality:

Expected to be high quality with clear text and diagrams, as per the description 'Full details, clear images'

Binding:

Likely Perfect Bound or Spiral Bound for durability and lay-flat usability in a workshop environment

Paper:

Durable, often coated paper to resist shop grime and wear

⚙️ Engine Specifications

Engine Type:

Air-cooled V-Twin (likely Twin Cam 96 for most models, potentially Twin Cam 88 for some earlier variants of certain models)

Engine Displacement:

Typically 1584cc (96 cubic inches) for 2008 models. Some earlier models or variations might have 1450cc (88 cubic inches).

Engine Configuration:

90-degree V-twin

Bore X Stroke:

For Twin Cam 96: 3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)

Compression Ratio:

Typically 9.2:1 for Twin Cam 96

Valve Train:

Overhead valve (OHV) with hydraulic lifters and pushrods.

Horsepower:

Approximately 65-70 HP (varies by model and tuning)

Torque:

Approximately 85-90 ft-lbs (varies by model and tuning)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI) for most models. Some base FXD models might have had carburetor options in earlier years, but 2008 is predominantly EFI.

Fuel Type:

Unleaded Gasoline, 91 octane or higher recommended

Fuel Tank Capacity:

Typically 4.7 US gallons (17.8 L) for most Dyna models

🔧 Transmission

Type:

6-speed Cruise Drive Constant Mesh

Clutch Type:

Hydraulically Actuated Multiplate Wet Clutch

Gear Ratios:

Manual specifies these, typically: 1st: 9.265, 2nd: 6.321, 3rd: 4.794, 4th: 3.804, 5th: 3.150, 6th: 2.790

Transmission Fluid Type:

Harley-Davidson Genuine Formula + Transmission, primary chaincase lubricant, and Jiffy Stand Lubricant (or equivalent SAE 50 API GL-4 oil)

Primary Drive:

46/31 Duplex Chain (ratio 1.484)

Final Drive:

Belt Drive, 32/66 (ratio 2.0625)

📐 Dimensions

Wheelbase:

Approx. 63.0 - 65.4 inches (1600.2 - 1661.2 mm) depending on specific model

Seat Height:

Approx. 25.7 - 27.3 inches (652.8 - 693.4 mm) depending on specific model

Dry Weight:

Approx. 646 - 670 lbs (293 - 304 kg) depending on specific model

Gvwr:

Approx. 1070 lbs (485 kg)

🛡️ Safety Features

Safety Features Overview:

Standard motorcycle safety features; specific ratings not applicable in the same way as automobiles

Braking System:

Hydraulic disc brakes front and rear. Dual front discs on some models (e.g., Fat Bob).

Lighting:

Halogen headlamp, LED taillight, directional lights

Frame Construction:

Steel, double-cradle frame

💡 Technology Features

Audio System:

Optional factory-installed or dealer-installed audio systems were available on some Dyna models, typically with AM/FM radio and CD player.

ABS:

Anti-lock Braking System (ABS) was an optional feature on many 2008 Dyna models.

Diagnostics Interface:

Proprietary Harley-Davidson diagnostic connectors, requiring specific tools or interfaces for advanced electronic diagnostics. The manual would cover accessing and interpreting diagnostic codes.

🔧 Maintenance

Engine Oil Change:

Every 5,000 miles (8,000 km) or annually, whichever comes first.

Transmission Primary Chaincase Oil:

Every 10,000 miles (16,000 km) or annually.

Spark Plugs:

Inspect every 10,000 miles (16,000 km), replace as needed. Often replaced during major services.

Drive Belt Inspection:

Inspect tension and condition every 5,000 miles (8,000 km).

Clutch Fluid Change:

Every 24 months (hydraulic clutch system).

Engine Oil Type:

Harley-Davidson Genuine V-Twin 20W-50, SYN3 (Full Synthetic), or equivalent API CG-4 or higher certified motorcycle oil.

Engine Oil Capacity:

Approx. 4 US quarts (3.8 L) with filter change.

Brake Fluid Type:

DOT 4 (typically, check manual for specific).

Common Problems:

Potential for primary drive chain tensioner wear (especially the older spring-loaded design), starter solenoid issues, voltage regulator failure, exhaust pipe leaks (flange gaskets), and early model Twin Cam cam chain tensioner wear (though improved by 2008).

Diagnostic Tips:

The manual would detail specific diagnostic procedures for these issues, often involving checking electrical connections, listening for specific noises, and performing compression tests.

📚 Vehicle History

Brand Focus:

Harley-Davidson is an iconic American motorcycle manufacturer with a rich history dating back to 1903.

Dyna Line Introduction:

The Dyna line was introduced in 1991, characterized by its traditional styling and a blend of classic and modern features. It served as a platform for various customization and performance-oriented models.

2008 Model Year Significance:

The 2008 model year for the Dyna line saw continued refinement of the Twin Cam engine, chassis improvements, and the introduction of various styling packages across the different models.

Manufacturing Location:

Milwaukee, Wisconsin, USA; Kansas City, Missouri, USA

🏆 Awards & Recognition

Industry Recognition:

Harley-Davidson motorcycles are consistently recognized for their iconic styling, V-twin engine character, and community support. Specific awards for the 2008 Dyna models themselves are less common than brand-wide recognition.