🏷️ Basic Information

Make:

Harley-Davidson

Model:

FLHR Road King

Year:

2006

Product Name:

2006 Harley Davidson TOURING FLHR Road KING Service Repair Manual

Model Code:

FLHR

Family Code:

TOURING

👋 Introduction

Market Segment:

Harley-Davidson's iconic touring motorcycle, known for its classic styling, comfortable ride, and V-twin rumble.

Competitors:

Competes with other large-displacement cruiser and touring motorcycles from brands like Indian Motorcycles, Victory Motorcycles, and some Japanese manufacturers in the touring segment.

Design Philosophy:

Emphasizes classic American motorcycle styling, rider comfort for long distances, and powerful V-twin performance.

Target Audience:

Touring riders, cruiser enthusiasts, and those who appreciate the heritage and customization potential of Harley-Davidson motorcycles.

Manual Value:

Provides essential, detailed technical information for maintaining and repairing the 2006 FLHR Road King, enabling owners to perform their own servicing, saving time and money, and ensuring proper operation.

📋 Manual Details

Primary Coverage:

Maintenance and Repair Procedures

Estimated Page Count:

Varies (typically 400-800 pages for Harley service manuals)

Type:

Service Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine:

Complete engine overhaul, including disassembly, inspection, assembly, and tuning of the Twin Cam 88 engine.

Transmission:

Service and repair of the 5-speed Cruise Drive transmission, including clutch, primary drive, and gearbox.

Electrical System:

Wiring diagrams, troubleshooting for ignition, lighting, charging system, starting system, fuel injection, and accessory circuits.

Fuel System:

Diagnosis and repair of the fuel injection system (EFI), fuel pump, injectors, and related components.

Brakes:

Front and rear brake system service, including hydraulic components, caliper overhaul, and bleeding procedures.

Suspension:

Front fork and rear shock absorber service, adjustment, and overhaul.

Bodywork:

Fairing, saddlebag, fender, and fuel tank removal, installation, and repair.

Chassis:

Frame, steering head, and wheel bearing service.

Cooling System:

Not applicable for air-cooled engines.

Routine Maintenance:

Oil changes, filter replacements, spark plug service, air filter cleaning/replacement, and lubrication.

Troubleshooting:

Diagnostic procedures for common and uncommon issues, including fault code interpretation.

Repair:

Step-by-step instructions for component replacement, engine rebuilds, transmission overhauls, and electrical system repairs.

Diagnostics:

Detailed diagnostic flowcharts and testing procedures for various systems.

Assembly Disassembly:

Comprehensive instructions for complete teardown and reassembly of all major components.

Specifications Torque:

Essential torque specifications for all fasteners and critical components.

Depth:

Comprehensive, covering everything from basic service to complete engine and transmission rebuilds. Suitable for professional mechanics and skilled DIY enthusiasts.

📊 Manual Specifications

File Type:

PDF

Searchable Text:

Yes (typically for professionally produced PDFs)

Image Resolution:

High resolution, suitable for viewing on screen and printing. Adobe PDF Reader recommended for optimal display of images/graphics.

Binding:

N/A (Digital PDF format)

Paper Type:

N/A (Digital PDF format)

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 88

Displacement:

1450 cc (88 cubic inches)

Bore X Stroke:

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

Compression Ratio:

8.8:1

Valve Train:

Pushrod-actuated overhead valves, two per cylinder

Horsepower:

Approximately 65-70 HP (Varies slightly by tuning and exhaust)

Torque:

Approximately 76-80 lb-ft @ 3200 RPM (Varies slightly by tuning and exhaust)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded gasoline, minimum 87 octane

Oil Type:

Harley-Davidson SYN3 Synthetic Motorcycle Oil (or equivalent API SG, JASO MA certified oil) - SAE 20W50 for most conditions.

Oil Capacity:

Approximately 4 quarts (3.8 liters) with filter change.

🔧 Transmission

Transmission Type:

5-speed constant mesh, helical gear

Primary Drive:

Plated wet-clutch, chain drive

Final Drive:

Belt drive

Clutch Type:

Hydraulically actuated, multi-plate wet clutch

Gear Ratios:

1st: 9.342, 2nd: 6.781, 3rd: 4.756, 4th: 3.750, 5th: 3.155 (Typical values, may vary slightly)

Fluid Type:

Harley-Davidson Transmission Fluid (or equivalent SAE 75W-90 synthetic gear lubricant)

Fluid Capacity:

Approximately 20-24 fl oz (0.6-0.7 L)

📐 Dimensions

Overall Length:

93.3 in. (2370 mm)

Seat Height:

28.0 in. (710 mm)

Ground Clearance:

5.1 in. (130 mm)

Dry Weight:

Approximately 710 lbs (322 kg)

Gross Vehicle Weight Rating Gvwr:

Approximately 1260 lbs (572 kg)

Saddlebag Capacity:

Locking hard saddlebags, approximately 2.2 cu ft total capacity.

🛡️ Safety Features

Crash Test Ratings:

Not applicable for motorcycles in the same way as cars. Safety focus is on handling, braking, and rider aids.

Braking System:

Dual-disc front brakes with 4-piston calipers, Single-disc rear brake with 4-piston caliper. Anti-lock Braking System (ABS) was optional on some 2006 models, check VIN.

Lighting:

Halogen headlamp, dual taillamps, LED stoplights, amber front and rear turn signals.

Frame Construction:

Steel, cradle frame with a steel swingarm.

Tires:

Front: 130/90B16 67H; Rear: 150/80B16 77H (Typical sizes, check specific model for exact fitment).

💡 Technology Features

Audio System:

Optional AM/FM stereo radio with CB/intercom and passenger controls may be equipped. Handlebar-mounted controls are common.

Display:

Analog speedometer and tachometer, with a digital odometer and gear indicator. Fuel gauge and voltmeter may be integrated into the instrument cluster.

ABS:

Anti-lock Braking System (ABS) was an optional feature for 2006 models, not standard.

Diagnostic Tools:

Requires Harley-Davidson Digital Technician or compatible diagnostic tool for advanced troubleshooting and system resets (e.g., TPS reset, idle relearn).

🔧 Maintenance

Initial Service:

First service typically at 1,000 miles (1600 km) for oil change, primary fluid, and inspection.

Subsequent Oil Change:

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

Primary Chain Tensioner Inspection:

Inspect at 5,000, 10,000, and 15,000 mile intervals. Automatic tensioner replacement recommended between 30,000-60,000 miles depending on wear.

Spark Plugs:

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

Air Filter:

Inspect every 5,000 miles (8,000 km), clean or replace as needed.

Transmission Fluid Change:

Change every 10,000 miles (16,000 km) or annually.

Engine Oil Spec:

Harley-Davidson SYN3 Synthetic Motorcycle Oil (SAE 20W50) or equivalent.

Primary Fluid Spec:

Harley-Davidson primary chaincase lubricant (or equivalent SAE 90 gear oil).

Brake Fluid Spec:

DOT 4 brake fluid.

Primary Chain Tensioner:

The original hydraulic chain tensioner for the primary drive is a known wear item and can degrade over time, leading to noise and potential damage if not addressed. Upgraded spring-loaded tensioners are available.

Cam Chain Tensioners:

The cam chain tensioners (cam-side and pinion-side) on Twin Cam engines can also wear. Early inspection and potential upgrade to hydraulic tensioners or aftermarket solutions is advisable.

Exhaust Leaks:

Exhaust header pipe gaskets and flange gaskets can leak over time, leading to exhaust leaks and performance issues.

📚 Vehicle History

Heritage:

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

Road King History:

The Road King line was introduced in 1994, reviving classic styling cues from the 1940s and 1950s touring motorcycles. It's known for its removable windscreen and classic cruiser aesthetics combined with touring capability.

2006 Updates:

The 2006 model year saw the continued use of the Twin Cam 88 engine, with potential updates to EFI systems and minor styling tweaks. The introduction of the 6-speed Cruise Drive transmission on some touring models began around this era, but the FLHR typically retained the 5-speed for this year.

Manufacturing Location:

York, Pennsylvania, USA and Milwaukee, Wisconsin, USA (Harley-Davidson assembly plants)

🏆 Awards & Recognition

Model Awards:

The Harley-Davidson Road King, as a model line, has consistently been a top seller and is widely recognized for its blend of comfort, style, and touring capability within the cruiser market. Specific awards for the 2006 model year may not be widely publicized but it was a well-regarded model in its class.