Segment:
Full-size V-twin cruiser motorcycle.
Target Audience:
Harley-Davidson owners seeking to perform their own maintenance, repairs, and diagnostics, or professional independent repair shops.
Competitors 2010:
Indian Chief, Victory Kingpin, Honda Gold Wing (touring focus), Kawasaki Vulcan series, Yamaha Road Star.
Distinctive Features:
Detachable windshield, lockable hard saddlebags, classic styling, comfortable touring ergonomics, air-cooled V-twin engine.
Manual Advantage:
Provides authoritative, factory-backed information essential for maintaining the Road King's performance and longevity.
Engine:
Complete engine disassembly, assembly, inspection, troubleshooting, and repair procedures for the Twin Cam 103 engine.
Fuel System:
Fuel injection system (EFI), throttle body, fuel pump, fuel filter, injectors, and fuel tank service.
Ignition System:
Ignition module, spark plugs, ignition coils, and troubleshooting of ignition-related faults.
Transmission:
Six-speed Cruise Drive transmission service, disassembly, assembly, clutch, and lubrication.
Drivetrain:
Belt drive system, rear sprocket, front pulley, and drive belt inspection and replacement.
Brakes:
Hydraulic brake systems (front and rear), caliper service, master cylinder overhaul, brake fluid replacement, and ABS system (if equipped).
Suspension:
Front fork service (including seals and oil), rear shock absorber adjustment and replacement, and wheel bearing service.
Electrical System:
Wiring diagrams, battery service, charging system (stator, regulator/rectifier), lighting, instrumentation, starting system, and accessory circuits.
Chassis:
Frame inspection, steering head bearings, swingarm pivot, and related chassis components.
Bodywork:
Fairing removal and installation, fender service, saddlebag removal and installation, seat service, and cosmetic component repairs.
Diagnostic Tools:
Information on Harley-Davidson's Digital Technician (DT) tool and diagnostic trouble codes (DTCs).
Maintenance:
Scheduled maintenance, oil changes, filter replacements, lubrication points, and general upkeep.
Troubleshooting:
Systematic diagnostic procedures for identifying and resolving common and uncommon mechanical and electrical issues.
Repair:
Detailed step-by-step instructions for component removal, repair, and reinstallation.
Rebuilds:
Complete engine and transmission rebuild procedures with detailed specifications.
Adjustments:
Carburetor (if applicable on earlier models or for reference), clutch, throttle cables, and suspension adjustments.
Wiring Diagrams:
Comprehensive electrical schematics for all systems.
Depth:
Comprehensive Factory Service Manual covering all aspects of maintenance, repair, and troubleshooting from basic service to complete engine and transmission overhauls.
Engine Family:
Harley-Davidson Twin Cam
Engine Type:
Air-cooled, 45-degree V-twin
Displacement:
96 cubic inches (1584 cc)
Bore X Stroke:
3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)
Valve Train:
Pushrod-actuated, overhead valves with two valves per cylinder.
Horsepower Approximate:
Est. 70-80 HP (Varies with tuning and specific build)
Torque Approximate:
Est. 90-96 lb-ft @ 3500 RPM (Varies with tuning and specific build)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, minimum 89 octane (higher recommended)
Oil Type Spec:
Harley-Davidson 20W-50 Synthetic (or equivalent meeting H-D specification)
Oil Capacity W Filter:
3.7 US quarts (3.5 Liters)
Type:
6-speed Cruise Drive, constant mesh
Primary Drive:
Perimeter contact, double-row chain
Final Drive:
Carbon fiber belt, 25mm wide
Clutch Type:
Hydraulic, multi-plate wet clutch
Transmission Fluid Spec:
Harley-Davidson Formula + Transmission & Primary Chain Lubricant (or equivalent)
Transmission Fluid Capacity:
24 US fluid ounces (0.71 Liters)
N A:
Motorcycles typically do not receive NHTSA crash test ratings like automobiles.
Braking System:
Dual front disc brakes, single rear disc brake. Optional ABS available.
Lighting:
Halogen headlight, LED taillight and brake light, front and rear turn signals.
Frame Construction:
Mild steel, tubular frame with two-piece cast aluminum swingarm.
Audio System:
Factory fitted audio system (often an AM/FM radio with CD player and CB/intercom preparation, depending on original specification).
Gauges:
Analog speedometer, tachometer, fuel gauge, voltmeter, oil pressure gauge, and indicator lights.
ABS:
Anti-lock Braking System (ABS) was an optional feature on the 2010 Road King FLHR.
Cruise Control:
Electronic cruise control is standard on the 2010 Road King FLHR.
First Service:
1,000 miles (1,600 km) or 6 months, whichever comes first.
Subsequent Service:
Every 5,000 miles (8,000 km) or 12 months, whichever comes first.
Engine Oil Type:
Harley-Davidson 20W-50 Synthetic (or equivalent)
Transmission Primary Fluid Type:
Harley-Davidson Formula + Transmission & Primary Chain Lubricant (or equivalent)
Brake Fluid Type:
DOT 4 Hydraulic Brake Fluid
Fork Oil Type:
Harley-Davidson Type 'E' or 'S' Fork Oil (or equivalent with similar viscosity)
Potential Issues 2010:
Refer to manual for specific troubleshooting. Common areas can include clutch drag, charging system issues (stator/regulator), and occasional electrical gremlins if not maintained.
Oil Filter Part Number Example:
HIFLOFILTRO HF170C / HD Part Number 63731-37
Air Filter Part Number Example:
HIFLOFILTRO HFA1910 / HD Part Number 29049-09
Brand Identity:
Iconic American motorcycle manufacturer known for its V-twin engines and distinct styling.
Road King Introduction:
Introduced in 1994 as a retro-styled touring motorcycle, evolving from the FXR platform.
2010 Updates:
Part of the Project Rushmore lineage, featuring the Twin Cam 103 engine and chassis refinements for improved handling and comfort.
Manufacturing Location:
York, Pennsylvania, USA and Milwaukee, Wisconsin, USA.
