🏷️ Basic Information

Make:

Harley-Davidson

Model:

FLHR Road King

Year:

2010

Product Type:

Service Repair Manual

Vehicle Segment:

Full-size Cruiser Motorcycle

👋 Introduction

Vehicle Class:

Premium Touring Cruiser

Target Audience:

Motorcyclists seeking comfort, style, and long-distance touring capability with classic Harley-Davidson appeal.

Key Competitors 2010:

Indian Chief, Victory Kingpin/Vision Tour, Honda Gold Wing (though in a slightly different segment), Kawasaki Vulcan 2000 Classic LT.

Signature Features:

Iconic styling, comfortable rider and passenger seating, large-capacity saddlebags, powerful V-twin engine, smooth ride, wind protection.

Model Purpose:

Designed for comfortable long-distance touring, cruising, and general riding enjoyment.

📋 Manual Details

Primary Coverage:

Mechanical, Electrical, and Body Systems

Secondary Coverage:

Troubleshooting, Diagnostics, Routine Maintenance, Repair Procedures, Specifications

Estimated Page Count:

Approximately 600-800 pages (typical for comprehensive Harley-Davidson service manuals)

Manual Format Type:

Service and Repair Manual

Language:

English

Digital Format:

PDF Download

📖 Manual Coverage

Engine:

103 Cubic Inch (1690cc) Twin Cam 103 V-Twin Engine (Air-Cooled), Fuel Injection (EFI), Ignition System, Lubrication System, Cooling System (Air), Exhaust System

Transmission:

6-Speed Cruise Drive Transmission, Clutch System, Primary Drive, Final Drive

Chassis:

Frame, Swingarm, Front Fork (Telescopic), Rear Suspension (Dual Shock Absorbers), Wheels, Tires, Steering Assembly

Brakes:

Front and Rear Hydraulic Disc Brakes, Brake Calipers, Master Cylinders, Brake Lines, Brake Fluid Specifications

Electrical System:

Battery, Charging System (Alternator/Stator, Regulator/Rectifier), Starting System (Starter Motor, Solenoid), Lighting System (Headlight, Taillight, Turn Signals), Ignition System, Instrumentation, Fuses, Relays, Wiring Diagrams, Electronic Control Module (ECM)

Fuel System:

Fuel Tank, Fuel Pump, Fuel Filter, Fuel Injectors, Throttle Body, Idle Air Control (IAC) Motor, Evaporative Emission Control System (EVAP)

Bodywork:

Fairing, Windshield, Saddlebags, Fenders, Seat, Handlebars, Controls, Mirrors, Fuel Tank Badging, Paint and Finish

Routine Maintenance:

Oil Changes, Filter Replacements (Oil, Air, Fuel), Spark Plug Replacement, Chain/Belt Adjustment (if applicable), Tire Pressure Checks, Brake Pad Inspection, Battery Maintenance

Diagnostic Procedures:

Troubleshooting Guides, DTC (Diagnostic Trouble Code) Retrieval and Interpretation, Component Testing

Major Repairs:

Engine Overhaul, Transmission Rebuild, Fork Seal Replacement, Brake System Overhaul, Electrical Component Replacement, Wiring Harness Repair

Component Disassembly Assembly:

Step-by-step instructions for removing and reinstalling all major and minor components

Depth Of Information:

Comprehensive, covering from basic checks to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.

📊 Manual Specifications

File Type:

Portable Document Format (PDF)

Readability:

High-resolution, optimized for digital viewing and printing. Clear diagrams and text.

Binding Method:

Not Applicable (Digital Format)

Paper Quality:

Not Applicable (Digital Format)

Text Searchable:

Likely text-searchable PDF, allowing for quick keyword lookups of specific components or procedures.

⚙️ Engine Specifications

Engine Type:

Air-Cooled, Twin Cam 103 V-Twin

Displacement:

103 cubic inches (1690cc)

Bore X Stroke:

3.875 in. x 4.38 in. (98.4 mm x 111.3 mm)

Compression Ratio:

9.2:1

Valve Train:

Pushrod-actuated overhead valves with hydraulic lifters, 2 valves per cylinder

Horsepower Estimate:

Approx. 70-75 HP (at crankshaft, varies slightly by source)

Torque Estimate:

Approx. 95-100 ft-lbs (at crankshaft, varies slightly by source)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded Premium Fuel (91 Octane or higher recommended)

🔧 Transmission

Transmission Type:

6-Speed Cruise Drive

Primary Drive:

Duplex chain, 1.000 in., hydraulic tensioner

Final Drive:

Belt, 32 mm, 140-tooth

Clutch:

Hydraulic, 9-plate, wet

📐 Dimensions

Length:

93.9 in. (2385 mm)

Width:

37.0 in. (940 mm)

Height:

54.0 in. (1372 mm)

Seat Height Laden:

26.6 in. (675 mm)

Ground Clearance:

5.1 in. (130 mm)

Dry Weight:

725 lbs. (329 kg)

Gross Vehicle Weight Rating:

1200 lbs. (544 kg)

Saddlebag Capacity:

Approx. 2.2 cu ft (62.3 L) total

🛡️ Safety Features

Safety Certification:

Complies with all applicable U.S. Federal Motor Vehicle Safety Standards (FMVSS) for motorcycles.

Braking System:

Dual-disc front, single-disc rear with linked braking (though not full ABS on all models, check VIN specific features).

Lighting:

Halogen headlight, LED taillight, amber incandescent front turn signals, red incandescent rear turn signals.

Frame Construction:

Mild steel, tubular, cradle frame with extruded downtubes and rectangular sections, cast aluminum swingarm.

Tire Construction:

Tubeless bias-ply construction, typically Dunlop D402F (front) and D401 (rear).

💡 Technology Features

Audio System:

Optional premium audio system with AM/FM radio, CD player, and provisions for MP3 input (check specific bike configuration).

Instrumentation:

Analog speedometer and tachometer, digital odometer, fuel gauge, gear indicator, clock, and warning lamps.

Cruise Control:

Standard electronic cruise control for highway comfort.

Security:

Harley-Davidson Smart Security System (standard on most FLHR models, featuring an immobilizer and siren).

Diagnostic Ports:

Diagnostic connector for interface with Harley-Davidson Digital Technician (requires specific tools).

🔧 Maintenance

First Service:

Typically at 1,000 miles (1600 km) - includes engine oil and filter change, primary chain case oil change, clutch adjustment, and general inspection.

Subsequent Oil Change:

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

Air Filter Inspection:

Inspect every 5,000 miles (8,000 km), replace as needed or every 10,000-15,000 miles (16,000-24,000 km) depending on conditions.

Spark Plug Replacement:

Typically every 10,000 - 15,000 miles (16,000 - 24,000 km).

Engine Oil Type:

Harley-Davidson 20W-50 SYN3 Full Synthetic Motorcycle Oil or equivalent API CG-4 or higher rated diesel engine oil.

Engine Oil Capacity:

4.0 US quarts (3.8 L) with filter change.

Primary Chain Case Oil:

Harley-Davidson primary chain case lubricant or SAE 90 Hypoid Gear Oil.

Primary Chain Case Oil Capacity:

1 US quart (0.95 L)

Transmission Oil:

Harley-Davidson Formula + Transmission Lubricant (or SAE 90 Hypoid Gear Oil for older models/specific recommendations).

Transmission Oil Capacity:

20-22 US fluid ounces (approx. 0.6 L)

Brake Fluid:

DOT 4 Heavy Duty Brake Fluid (for front and rear systems).

Common Wear Items:

Clutch plates, brake pads, tires, fork seals, battery.

Potential Engine Issues:

While generally robust, early Twin Cam 103 models could experience issues like cam chain tensioner wear, oil leaks (especially from pushrod tubes), and sometimes starter issues.

Electrical Quirks:

Intermittent electrical faults can occur due to vibration, corrosion in connectors, or faulty sensors. Wiring diagrams are crucial for diagnosis.

📚 Vehicle History

Harley Davidson Legacy:

Founded in 1903, Harley-Davidson is one of the oldest motorcycle manufacturers in the world, known for its iconic V-twin engines, distinctive styling, and strong rider community.

Road King Lineage:

The Road King nameplate has been a staple in the Harley-Davidson lineup since the early 1990s, evolving from the Shovelhead and Evolution engine eras. The FLHR is positioned as a classic touring motorcycle that emphasizes comfort and style over aggressive performance.

Production Plant:

Primarily manufactured at Harley-Davidson's York, Pennsylvania, and Kansas City, Missouri, facilities.

🏆 Awards & Recognition

Model Reputation:

Consistently praised for its blend of classic styling, comfort, and reliable touring performance, earning a strong following among enthusiasts.

Owner Satisfaction:

Generally high owner satisfaction scores for comfort, reliability, and iconic styling.