🏷️ Basic Information

Make:

Harley-Davidson

Model:

Dyna

Year:

2006

👋 Introduction

Market Segment:

Cruiser motorcycle segment, specifically the Harley-Davidson Dyna family, known for its classic styling and robust performance.

Key Competitors 2006:

Other cruiser manufacturers like Indian Motorcycles, Victory Motorcycles, and some models from Japanese manufacturers (e.g., Yamaha V-Star, Honda Shadow, Kawasaki Vulcan) offering similar displacement and styling.

Manufacturer Provided Diagnostic Tool Parity:

This manual is the same document used by authorized Harley-Davidson dealerships, ensuring the highest level of accuracy and completeness for repairs and diagnostics.

Illustration Quality:

Features detailed, high-resolution illustrations and exploded views of components, making complex procedures easier to understand.

Step-By-Step Instructions:

Provides clear, concise, step-by-step instructions for every maintenance, repair, and diagnostic task.

📋 Manual Details

Model Variants Covered:

All 2006 Harley-Davidson Dyna models including: Street Bob (FXDB), Super Glide (FXD), Super Glide Custom (FXDC), Low Rider (FXDL), Fat Bob (FXDF - if introduced for 2006), Wide Glide (FXDWG - if applicable for 2006).

Estimated Page Count:

Approximately 600-800 pages (typical for a factory service manual of this era).

Manual Type:

Factory Service Manual / Workshop Manual

Language:

English

Format:

Printed (likely comb-bound or perfect-bound).

📖 Manual Coverage

Engine And Powertrain:

Comprehensive coverage of the Harley-Davidson Twin Cam 88B engine, including disassembly, assembly, inspection, repair, and troubleshooting of all engine components (pistons, cylinders, crankshaft, camshafts, valve train, lubrication system, cooling system - air-cooled).

Transmission And Drivetrain:

Detailed procedures for the 5-speed transmission, clutch, primary drive, final drive belt, and related components.

Chassis And Suspension:

Front fork (e.g., 49mm telescopic), rear shock absorbers, swingarm, frame, wheel bearings, steering head bearings, and alignment procedures.

Electrical System:

Complete diagnostic procedures for ignition system, starting system, charging system (alternator, regulator), lighting, instrumentation, fuel injection system (EFI), and all wiring harnesses.

Fuel System:

Detailed coverage of the Electronic Fuel Injection (EFI) system, including throttle body, fuel pump, injectors, sensors (e.g., MAP, IAT, O2), and ECM.

Braking System:

Front and rear brake caliper service, master cylinders, brake lines, bleeding procedures, and rotor inspection.

Body And Trim:

Front fender, rear fender, fuel tank, seat, handlebars, controls, mirrors, and exhaust system removal and installation.

Routine Maintenance:

Oil changes, filter replacements, spark plug service, drive belt inspection and adjustment, tire pressure, chain lubrication (if applicable, though most Dynas used belts), clutch and brake lever adjustments.

Troubleshooting Guides:

Systematic diagnostic charts and procedures for identifying and resolving common and uncommon problems across all vehicle systems.

Component Overhaul And Rebuild:

Detailed step-by-step instructions for complete disassembly, cleaning, inspection, and reassembly of major components like the engine, transmission, and forks.

Special Tool Requirements:

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

Wiring Diagrams:

Detailed color-coded wiring diagrams for the entire electrical system, aiding in troubleshooting and component identification.

Diagnostic Capabilities:

Advanced diagnostics for the EFI system, including sensor readings, error codes, and recalibration procedures (may require specific diagnostic tools like a Digital Technician if dealer-level access is needed, but manual provides underlying principles).

Repair Precision:

Includes critical torque specifications, clearances, and tolerances for all fasteners and internal engine components, ensuring factory-correct assembly.

Specifications And Tolerances:

Comprehensive listing of all essential specifications, measurements, and wear limits for every serviceable part.

📊 Manual Specifications

Digital Format If Applicable:

N/A (Product information states 'Factory Repair Workshop Manual', implying printed format unless otherwise specified).

Print Quality:

High-quality printing with clear illustrations and diagrams, typical of official factory publications.

Binding Type:

Likely comb-bound or perfect-bound for durability in workshop environments.

Paper Type:

Durable paper stock suitable for workshop use, often with a matte or semi-gloss finish.

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 88B V-twin

Displacement:

1449 cc (88 cubic inches)

Bore X Stroke:

3.75 in. x 4.00 in. (95.25 mm x 101.6 mm)

Compression Ratio:

8.9:1

Valve Train:

Pushrod-actuated, overhead valves, 2 valves per cylinder

Ignition System:

Electronic Sequential Port Fuel Injection (ESPFI)

Horsepower Estimated:

Approx. 65-70 HP (at crankshaft, varies by model variant)

Torque Estimated:

Approx. 86-90 ft-lbs (at crankshaft, varies by model variant)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded gasoline, 91 octane (R+M)/2 recommended

🔧 Transmission

Transmission Type:

5-speed constant mesh

Clutch Type:

Wet, multi-plate

Final Drive:

Carbon fiber reinforced belt, 1400mm pitch

Gear Ratios:

1st: 9.315, 2nd: 6.707, 3rd: 4.756, 4th: 3.750, 5th: 3.150 (typical for Twin Cam 5-speed, check manual for exact ratios).

📐 Dimensions

Overall Length:

Varies by model (e.g., approx. 92.5 in. for Street Bob, longer for Wide Glide).

Wheelbase:

Varies by model (e.g., approx. 63.5 in. to 64.5 in.).

Dry Weight:

Varies by model (e.g., approx. 650-670 lbs).

Gvwr:

Varies by model, typically around 1000-1050 lbs.

🛡️ Safety Features

Crash Test Ratings:

Motorcycles of this era generally do not have standardized crash test ratings like automobiles.

Braking System Type:

Dual disc front, single disc rear, hydraulic actuation. Anti-lock Braking System (ABS) was optional on some models/trims for 2006.

Lighting:

Halogen headlamp, LED tail light, amber front/rear turn signals.

💡 Technology Features

Instrumentation:

Analog speedometer, tachometer (on some models), fuel gauge, odometer, trip meter, gear indicator, and various warning lights.

ABS Availability:

Optional on some 2006 Dyna models.

Diagnostic Port:

Has a diagnostic connector for reading error codes, though requires a specific Harley-Davidson diagnostic tool (e.g., Digital Technician) for full access.

🔧 Maintenance

First Service:

1000 miles (1600 km) or 6 months, whichever comes first (engine oil, primary chain, transmission oil, filter, spark plugs, inspection).

Subsequent Oil Changes:

Every 5000 miles (8000 km) or 12 months for engine oil and filter.

Transmission Oil Change:

Every 10,000 miles (16,000 km) or 24 months.

Primary Chain Case Oil Change:

Every 10,000 miles (16,000 km) or 24 months.

Engine Oil Type:

Harley-Davidson recommended SYN3 (SAE 20W50 Synthetic) or equivalent motorcycle-specific oil meeting Harley-Davidson specifications.

Primary Chain Case Fluid:

Harley-Davidson primary chain case lubricant or equivalent motorcycle primary fluid.

Transmission Fluid Type:

Harley-Davidson transmission lubricant or equivalent motorcycle gear oil (e.g., SAE 80W-90).

Brake Fluid:

DOT 4 Hydraulic Brake Fluid (refer to manual for specific type and quality).

Fork Oil:

Refer to manual for specific weight and type (often Harley-Davidson suspension oil).

Cam Chain Tensioners:

The stock hydraulic cam chain tensioners on Twin Cam engines can wear over time and may require replacement with upgraded components (e.g., gear-drive cams or improved hydraulic tensioners).

Crank Position Sensor:

Potential for crank position sensor failure leading to starting or running issues.

Wiring Harness Issues:

While generally robust, vibration can sometimes lead to chafing or loose connections in wiring harnesses if not properly maintained or secured.

Rear Wheel Alignment:

Ensuring proper rear wheel alignment and drive belt tension is crucial for tire wear and handling.

📚 Vehicle History

Founding And Legacy:

Harley-Davidson, founded in 1903, is one of the oldest and most iconic motorcycle manufacturers, synonymous with American freedom and a distinct V-twin sound and feel.

Dyna Introduction:

The Dyna line was introduced in 1991, evolving from the Shovelhead engine era, characterized by its rubber-mounted engine and traditional styling.

Twin Cam 88B Introduction:

The Twin Cam 88 engine replaced the Evolution engine starting in 1999. The 'B' designation signifies the engine's counter-balancers for reduced vibration.

Manufacturing Location:

Milwaukee, Wisconsin, USA and Kansas City, Missouri, USA

🏆 Awards & Recognition

Harley Davidson Reputation:

Harley-Davidson motorcycles are consistently recognized for their brand loyalty, distinctive styling, and unique riding experience.