🏷️ Basic Information

Make:

Harley-Davidson

Model:

FLHX, FLHT, FLHR, FLTR

Model Variants:

Street Glide (FLHX), Electra Glide Standard (FLHT), Road King (FLHR), Road Glide (FLTR)

Year:

2006

Platform Code:

Commonly referred to as the 'Touring' platform.

👋 Introduction

Market Position:

The 2006 Harley-Davidson Touring models represent a significant era for the brand, offering long-distance comfort and customizable platforms. This manual is essential for owners and technicians maintaining these popular V-twin cruisers.

Competitive Analysis:

These models competed with other large-displacement touring motorcycles from brands like Honda (Gold Wing), Kawasaki (Voyager), and Indian, emphasizing comfort, power, and the iconic Harley-Davidson experience.

Key Features:

Large displacement V-twin engines, comfortable ergonomics for long-haul riding, extensive luggage capacity (saddlebags, tour packs), advanced (for the time) fuel injection systems, and the distinctive Harley-Davidson styling and sound.

📋 Manual Details

Coverage Areas:

Comprehensive coverage for all specified Harley-Davidson Touring models (FLHX, FLHT, FLHR, FLTR) for the 2006 model year.

Page Count:

Typically 800-1200 pages (estimate based on factory manual scope for this era).

Manual Type:

Factory Service Repair Workshop Manual

Language:

English

Format:

Downloadable PDF

📖 Manual Coverage

Systems Covered:

Engine (Twin Cam 88), Fuel System (EFI), Ignition System, Transmission (5-speed Cruise Drive), Drivetrain (Belt Drive), Chassis, Suspension (Front & Rear), Brakes (Hydraulic Disc), Electrical System (Wiring Diagrams, Lighting, Accessories), Fuel Tank & Mounting, Seat & Passenger Footboards, Fairing & Outer Fairing, Saddlebags, Fenders, Handlebars, Controls, Gauges, Diagnostic Procedures.

Procedures Included:

Routine Maintenance, Scheduled Maintenance, Troubleshooting & Diagnostics, Engine Overhaul & Reassembly, Transmission Removal & Installation, Clutch Service, Brake System Bleeding & Repair, Electrical System Fault Finding, Suspension Adjustments & Component Replacement, Wheel & Tire Service, Fairing & Bodywork Repair, Accessory Installation & Wiring, Emission Controls, Torque Specifications, Special Tool Requirements.

Technical Depth:

In-depth, factory-level technical details suitable for professional technicians and experienced DIY mechanics. Covers from basic inspections to complete engine and transmission rebuilds, including detailed diagnostic trees and component-level repair instructions.

Wiring Diagrams:

Detailed color-coded wiring diagrams for all electrical systems, including lighting, ignition, fuel injection, charging, and accessories.

Troubleshooting Charts:

Extensive troubleshooting flowcharts and diagnostic trees for common and complex issues across all major systems.

Torque Specifications:

Comprehensive list of all critical torque specifications for fasteners and components.

Special Tools:

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

📊 Manual Specifications

File Format:

PDF (Portable Document Format)

Print Quality:

High-resolution, printable pages with clear diagrams and text.

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

Searchability:

PDF format allows for keyword searching of technical terms, part numbers, and procedures.

⚙️ Engine Specifications

Primary Engine:

Harley-Davidson Twin Cam 88 (TC88)

Engine Displacement:

1450 cc (88 cubic inches)

Engine Configuration:

Air-cooled, 45-degree V-twin, pushrod actuated overhead valves.

Bore X Stroke:

3.75 in x 4.0 in (95.25 mm x 101.6 mm)

Compression Ratio:

8.3:1 (typical for TC88)

Performance Horsepower:

Approx. 70-75 HP (at crankshaft, estimated)

Performance Torque:

Approx. 85-90 lb-ft (at crankshaft, estimated)

Fuel System:

Electronic Sequential Port Fuel Injection (ESPFI)

Ignition System:

Electronic Ignition (Solid State)

Oil Capacity:

4.0 US quarts (3.8 L) with filter change (check manual for precise spec).

Oil Type:

Harley-Davidson 20W-50 SYN3 (or equivalent).

🔧 Transmission

Standard:

5-speed Cruise Drive Manual Transmission

Optional:

N/A (Standard for these models)

Features:

Constant mesh, helical gears. Integrated transmission and primary drive cases.

Transmission Fluid Capacity:

Approx. 24 US fluid ounces (0.71 L) (check manual for precise spec).

Transmission Fluid Type:

Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant (or equivalent).

Primary Drive:

Multi-plate, wet clutch; Enclosed primary chain drive.

Final Drive:

Carbon reinforced belt drive

Belt Drive Ratio:

32/66

📐 Dimensions

Exterior Length:

Varies by model (FLHX/FLHT/FLTR typically around 98-100 inches, FLHR slightly less).

Exterior Width:

Varies by model (typically around 35-38 inches).

Exterior Height:

Varies by model (typically around 54-58 inches).

Wheelbase:

Approx. 63.5 - 64.5 inches (1613 - 1638 mm) depending on model.

Ground Clearance:

Approx. 5.0 - 5.5 inches (127 - 140 mm).

Fuel Capacity:

4.9 US gallons (18.5 L)

Dry Weight:

Approx. 750 - 800 lbs (340 - 363 kg) depending on model.

Cargo Capacity:

Significant, provided by standard saddlebags and optional tour pack on FLHT/FLHX/FLTR models.

Tire Size Front:

Typically 130/90-16

Tire Size Rear:

Typically 140/90-16

Wheel Type:

Cast Aluminum or Spoked (model dependent)

Wheelbase Front:

16 inches

Wheelbase Rear:

16 inches

🛡️ Safety Features

Ratings:

Motorcycles are not typically rated by NCAP or NHTSA in the same way as automobiles. Safety is primarily addressed through design and rider skill.

Active Features:

Powerful hydraulic disc brakes (dual front, single rear), stable chassis geometry, large tire contact patch.

Passive Features:

Sturdy frame construction, integrated lighting system, ample rider protection via fairings and wind deflection (on applicable models).

Brake System Front:

Dual 32 mm, 4-piston calipers, 11.5 inch (292 mm) floating rotors.

Brake System Rear:

Single 34 mm, 2-piston caliper, 11.5 inch (292 mm) solid rotor.

Brake Fluid Type:

DOT 4

💡 Technology Features

Infotainment:

Basic AM/FM radio with cassette player or CD player (model dependent), often with CB/Intercom options integrated into fairing. Handlebar-mounted controls.

Driver Assistance:

None (no electronic driver-assistance systems like ABS, traction control, or cruise control were standard on all models in 2006. Cruise control was an option on many Touring models).

Connectivity:

Limited to accessory connections and basic electrical system for lights and ignition. No Bluetooth or smartphone integration.

Diagnostics:

On-board diagnostic system with fault codes accessible via diagnostic port (often requiring a special tool or jumper sequence). Manual details code interpretation and troubleshooting.

🔧 Maintenance

Service Intervals Engine Oil:

Every 5,000 miles or 6 months (whichever comes first).

Service Intervals Transmission Fluid:

Every 10,000 miles or 12 months (whichever comes first).

Service Intervals Primary Chaincase Fluid:

Every 10,000 miles or 12 months (whichever comes first).

Service Intervals Air Filter:

Inspect every 5,000 miles, replace as needed based on condition.

Service Intervals Spark Plugs:

Replace every 15,000-20,000 miles (check manual for exact spec).

Service Intervals Brake Fluid:

Flush and replace every 24 months.

Fluid Specifications Engine Oil:

Harley-Davidson 20W-50 SYN3 (Synthetic) or 20W-50 (Mineral-based).

Fluid Specifications Transmission Fluid:

Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant.

Fluid Specifications Primary Chaincase Fluid:

Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant.

Fluid Specifications Brake Fluid:

DOT 4

Known Issues:

Primary compensator wear (can cause clunking), cam chain tensioner wear (pre-2007 TC88, especially on early models), potential oil leaks from gaskets, battery charging issues due to stator/regulator failure (common on many HD models of this era).

Tire Pressure Front:

30-36 PSI (check manual for specific model recommendations).

Tire Pressure Rear:

30-36 PSI (check manual for specific model recommendations).

📚 Vehicle History

Brand Heritage:

Harley-Davidson, founded in 1903, is an American icon synonymous with cruiser motorcycles, known for its distinctive V-twin engines, customization culture, and a loyal global following.

Model Evolution:

The Touring line, particularly the FL models, has been a cornerstone of Harley-Davidson for decades. The 2006 models feature the evolution from the Evolution engine to the Twin Cam 88, introducing electronic fuel injection and the 5-speed Cruise Drive transmission, significantly enhancing performance and rideability.

Production:

These specific models were produced at Harley-Davidson's York, Pennsylvania facility. 2006 was a significant year with the continued refinement of the Twin Cam platform.

🏆 Awards & Recognition

Recognitions:

Harley-Davidson Touring models consistently receive high marks from riders for comfort, style, and the overall ownership experience. Specific awards for the 2006 model year are less common than general recognition within rider communities.

Ratings:

Rider satisfaction ratings are generally very high for Harley-Davidson Touring motorcycles, particularly concerning comfort and brand loyalty.

Certifications:

Meets all US EPA and California Air Resources Board (CARB) emissions standards for its model year.