🏷️ Basic Information

Make:

Harley-Davidson

Model:

Dyna

Year:

2008

Vehicle Platform:

Dyna

👋 Introduction

Target Audience:

Primarily aimed at professional Harley-Davidson technicians and experienced DIY mechanics.

Value Proposition:

Provides factory-level repair and maintenance information, crucial for proper servicing of the 2008 Dyna platform, offering significant cost savings over dealership labor for complex repairs.

Accessibility:

Instant download format ensures immediate access to critical repair data.

Completeness:

Covers the entire spectrum of service needs, from routine checks to in-depth engine overhauls.

📋 Manual Details

Models Covered:

All Harley-Davidson Dyna models manufactured in 2008 (e.g., Super Glide, Street Bob, Low Rider, Fat Bob, Wide Glide)

Approximate Pages:

Over 800 pages (typical for comprehensive service manuals of this era)

Type:

Factory-Authorized Repair Service Manual

Language:

English

Format:

PDF (Digital Download)

📖 Manual Coverage

Engine:

Twin Cam 96 (1584cc) V-twin engine disassembly, assembly, diagnosis, and repair

Fuel System:

Fuel injection (EFI) system, throttle body, fuel pump, fuel filter, injectors, diagnostic procedures

Ignition System:

Ignition module, coil, spark plugs, timing procedures, diagnostic troubleshooting

Transmission Drivetrain:

5-speed Cruise Drive transmission overhaul, clutch system, primary drive, belt drive, final drive maintenance and repair

Brakes:

Front and rear brake systems, hydraulic lines, master cylinders, calipers, rotors, ABS (if equipped), bleeding procedures

Electrical System:

Wiring diagrams, battery, charging system (stator, regulator/rectifier), starting system (starter motor), lighting, instrumentation, switches, relays, fuses, security system (H-D Smart Security System)

Suspension:

Front fork (39mm Telescopic or 49mm Dyna) disassembly, overhaul, fluid changes; rear shock absorber replacement and adjustment

Wheels Tires:

Wheel bearing replacement, tire mounting and balancing, rim specifications

Frame Bodywork:

Frame inspection, fairing removal/installation (if applicable), fender removal/installation, seat and tank mounting

Exhaust System:

Exhaust system removal, installation, gasket replacement, inspection

Routine Maintenance:

Oil changes, filter replacements, air filter service, spark plug replacement, drive belt adjustment/inspection

Diagnostic Troubleshooting:

Step-by-step diagnostic charts and procedures for common faults and symptoms

Engine Rebuild:

Complete engine disassembly, inspection, component measurement, and reassembly procedures

Transmission Repair:

Transmission gear inspection, bearing replacement, shift drum and pawl maintenance

Brake Service:

Brake caliper overhaul, master cylinder replacement, brake line routing and bleeding

Electrical Diagnostics:

Fault finding for starting, charging, ignition, and lighting systems using wiring diagrams

Suspension Overhaul:

Front fork seal replacement, fork oil specification and fill levels

Special Tool Requirements:

Identification and usage instructions for specialized Harley-Davidson tools required for specific procedures

Depth Level:

Comprehensive: Covers basic maintenance to complete engine and transmission rebuilds, including advanced electrical diagnostics.

Diagnostic Capabilities:

Detailed symptom-based troubleshooting guides, wiring schematics for pinpointing electrical faults.

Rebuild Procedures:

Step-by-step illustrated procedures for engine, transmission, and suspension component overhauls.

📊 Manual Specifications

PDF Quality:

High-resolution, text-searchable PDF for easy navigation and keyword searches.

Printability:

Printable pages allow users to create physical copies for workshop use.

Binding:

N/A (Digital PDF format)

Paper Type:

N/A (Digital PDF format)

⚙️ Engine Specifications

Engine Type:

V-Twin, Air-Cooled, 45-degree

Engine Displacement:

96 cubic inches (1584cc)

Bore X Stroke:

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

Compression Ratio:

9.2:1

Valve Train:

Overhead valves (OHV), 2 valves per cylinder, pushrod actuated

Horsepower Estimated:

Approx. 65-70 HP (at crankshaft, specific models may vary)

Torque Estimated:

Approx. 86-90 ft-lbs @ 3200 RPM (at crankshaft, specific models may vary)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded gasoline, minimum 91 octane (Research Octane Number)

Fuel Tank Capacity:

Varies by model, typically 4.0 to 5.0 US gallons (15.1 to 18.9 L)

🔧 Transmission

Transmission Type:

5-speed Manual, Cruise Drive

Primary Drive:

Clutch, 34/46 ratio, 1.35:1

Final Drive:

Belt Drive, 32/66 ratio, 2.06:1

Gear Ratios:

1st: 9.312, 2nd: 6.650, 3rd: 4.943, 4th: 3.842, 5th: 3.160

Transmission Fluid Type:

Harley-Davidson Formula+ (or equivalent SE SYN3 or SAE 50 motorcycle oil)

📐 Dimensions

Wheelbase:

Varies by model, typically 62.8 - 64.2 inches (1595 - 1630 mm)

Seat Height:

Varies by model, typically 25.8 - 27.1 inches (655 - 688 mm)

Dry Weight:

Varies by model, typically 620 - 660 lbs (281 - 299 kg)

Gross Vehicle Weight Rating:

Typically 1000 lbs (454 kg)

🛡️ Safety Features

Crash Test Data:

Motorcycle safety is not assessed via standardized crash tests like automobiles. Focus is on rider protection and vehicle stability.

Braking System:

Dual-piston caliper front and rear brakes, optional Anti-lock Braking System (ABS) available on some models.

Lighting:

Halogen headlight, LED taillight, amber turn signals.

Security:

Optional H-D Smart Security System with proximity-based fob.

💡 Technology Features

Audio System:

Optional radio and CD player available on some models, often with handlebar-mounted controls. Many owners opt for aftermarket audio upgrades.

ABS:

Anti-lock Braking System (ABS) was an option on some 2008 Dyna models, enhancing braking safety.

Diagnostic Ports:

Includes a diagnostic connector for interfacing with diagnostic tools (e.g., Harley-Davidson Digital Technician).

🔧 Maintenance

Initial Service:

First service typically at 1,000 miles (1,600 km) or 12 months, whichever comes first.

Engine Oil Change:

Every 5,000 miles (8,000 km) or 12 months, whichever comes first.

Primary Chain Tensioner Inspection:

Inspect/replace at 10,000 miles (16,000 km) as the stock spring tensioner is prone to wear.

Spark Plugs:

Replace every 10,000 miles (16,000 km).

Drive Belt:

Inspect tension every 5,000 miles (8,000 km), check for wear.

Engine Oil:

Harley-Davidson SYN3 Full Synthetic Motorcycle Oil (20W50) or equivalent SAE 20W50 motorcycle oil meeting Harley-Davidson specifications.

Primary Oil:

Harley-Davidson Formula+ (or equivalent SE SYN3 or SAE 50 motorcycle oil).

Transmission Oil:

Harley-Davidson Formula+ (or equivalent SE SYN3 or SAE 50 motorcycle oil).

Brake Fluid:

DOT 4 brake fluid.

Fork Oil:

Harley-Davidson Suspension Fluid (e.g., 10W) or equivalent.

Primary Chain Tensioner:

Stock spring-loaded tensioner can wear out, potentially causing noise or damage. Many owners upgrade to the hydraulic tensioner.

Cam Chain Tensioners:

Early Twin Cam engines (prior to approximately 2007) had plastic cam chain tensioners that could wear. 2008 models typically came with updated components, but inspection is recommended.

Exhaust Flange Gaskets:

Can sometimes leak, requiring replacement.

📚 Vehicle History

Brand Legacy:

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

Dyna Platform Introduction:

The Dyna platform was introduced in 1991, characterized by its traditional styling, rubber-mounted engine for vibration isolation, and a combination of classic and modern features.

2008 Model Year Significance:

The 2008 model year saw the continued refinement of the Twin Cam 96 engine and the Cruise Drive transmission, solidifying the Dyna line's position in the market.

🏆 Awards & Recognition

Model Awards:

The Dyna platform, in general, has been recognized for its blend of performance and classic styling, appealing to a broad range of riders. Specific awards for the 2008 model are not prominently documented, but it was a strong performer in its class.