Positioning:
The FLHR Road King is a classic cruiser in Harley-Davidson's touring lineup, known for its retro styling, comfortable ride, and long-distance capability. This manual targets owners and independent repair shops seeking in-depth information for maintaining and repairing this iconic motorcycle.
Competition:
Competes with models like the Indian Chief Vintage, Victory Cross Country, and other large-displacement cruiser/touring motorcycles from Japanese and European manufacturers, though often differentiated by its V-twin engine and distinctive styling.
Vehicle Features:
Detachable windscreen, classic 'King of the Highway' styling, comfortable seating, ample storage via saddlebags, air-cooled V-twin engine.
Manual Coverage:
Complete service, repair, troubleshooting, and maintenance procedures for the 2010 Harley-Davidson FLHR Road King.
Estimated Page Count:
500+
Type:
Workshop Service Repair Manual
Format:
Downloadable Digital File (PDF)
Engine:
Twin Cam 103, fuel injection, ignition, cooling, exhaust, lubrication.
Transmission:
6-speed Cruise Drive, clutch, primary drive, final drive.
Brakes:
Front and rear hydraulic brake systems, ABS (if equipped).
Electrical:
Battery, charging system, starting system, lighting, instrumentation, ignition, security system, ECM, wiring diagrams.
Chassis And Suspension:
Frame, forks, swingarm, shock absorbers, steering.
Body And Trim:
Fuel tank, fenders, fairings, seat, saddlebags, instrumentation panel.
Wheels And Tires:
Wheel removal, installation, balancing, tire maintenance.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, lubrication, adjustments, inspections.
Repair:
Engine disassembly and assembly, transmission overhaul, brake caliper replacement, electrical component diagnosis and repair, suspension component repair.
Troubleshooting:
Diagnostic charts, symptom-based troubleshooting for engine, electrical, and mechanical issues.
Diagnostics:
Procedures for using diagnostic tools, reading fault codes, analyzing sensor data.
Specifications:
Torque values, clearances, fluid capacities, electrical specifications.
Depth:
Comprehensive, from basic rider maintenance to full engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.
Engine Type:
Air-cooled, 45-degree V-twin, Twin Cam 103 (designated as HD-103B)
Displacement:
1690 cc (103 cubic inches)
Bore X Stroke:
3.875 in. x 4.375 in. (98.4 mm x 111.1 mm)
Horsepower:
Approx. 70-75 HP (at crankshaft, estimated)
Torque:
Approx. 95-100 lb-ft (at crankshaft, estimated)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI), Magneti Marelli ECU
Fuel Type:
Unleaded gasoline, minimum 87 octane
Ignition System:
High-performance electronic ignition
Oil Type:
Harley-Davidson SYN3 Synthetic Motorcycle Oil (or equivalent V-twin motorcycle specific oil)
Oil Capacity:
Approx. 4 quarts (3.8 liters) with filter change
Transmission Type:
6-speed Cruise Drive, constant mesh
Optional Transmission:
N/A (standard 6-speed for this model year)
Clutch Type:
Cable-actuated, wet multi-plate
Primary Drive:
Duplex chain, 34/46 ratio
Final Drive:
Belt drive, 32/66 ratio
Transmission Fluid Type:
Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant (or equivalent V-twin motorcycle specific transmission fluid)
Transmission Fluid Capacity:
Approx. 2.75 quarts (2.6 liters)
Length:
94.5 in. (2400 mm)
Height:
54.0 in. (1370 mm)
Wheelbase:
64.5 in. (1638 mm)
Ground Clearance:
5.1 in. (130 mm)
Dry Weight:
Approx. 745 lbs. (338 kg)
Wet Weight:
Approx. 800 lbs. (363 kg)
Gross Vehicle Weight Rating Gvwr:
Approx. 1260 lbs. (572 kg)
Saddlebag Capacity:
Approx. 2.2 cu ft. (62.3 liters) total
Crash Test Ratings:
N/A (Motorcycle safety testing standards differ from automotive; manual covers brake performance, chassis integrity, and component safety.)
ABS:
Optional Anti-lock Braking System (ABS)
Lighting:
Halogen headlight, LED taillight, turn signals.
Security:
Factory-installed immobilizer system with key fob.
Frame Construction:
Mild steel, tubular, single backbone with downtubes.
Audio System:
Optional premium audio system with AM/FM radio, CD player, and CB/intercom connectivity (features vary by specific trim/options).
Display:
Analog gauges with integrated digital odometer and gear indicator.
Cruise Control:
Standard electronic cruise control.
Diagnostics Port:
Digital diagnostic connector (DDC) for use with Harley-Davidson diagnostic tools.
First Service:
1,000 miles (1,600 km) or 6 months, whichever comes first (includes oil change, filter, primary chain adjustment, inspection).
Subsequent Service:
Every 5,000 miles (8,000 km) or 12 months for regular service (oil change, filter, inspection); specific component checks at higher mileage intervals.
Engine Oil:
Harley-Davidson SYN3 (SAE 20W-50 Synthetic) or equivalent motorcycle-specific oil meeting HD-4, HD-6, or HD-8 specifications.
Transmission Primary Fluid:
Harley-Davidson Formula+ (or equivalent V-twin specific transmission/primary fluid)
Brake Fluid:
DOT 4 (for ABS and non-ABS models, check specific reservoir)
Fork Oil:
Harley-Davidson Harley-Davidson Front Fork Oil (Type E, 10W) or equivalent.
Common Wear Items:
Clutch plates, brake pads, tires, drive belt, fork seals, and occasional starter solenoid issues. Engine may require decarbonization over time.
Electrical Notes:
Wiring harness integrity is crucial. Check for chafing or corrosion, especially around the battery and ignition module.
Heritage:
Harley-Davidson, founded in 1903, is one of the most iconic American motorcycle manufacturers, synonymous with the cruiser and touring segments.
Road King Evolution:
The Road King lineage began in 1994, evolving from the FXR and FLT platforms. The 2010 model features the larger Twin Cam 103 engine and updated styling cues, building upon decades of touring motorcycle development.
Manufacturing Location:
York, Pennsylvania, USA
