Market Segment:
Full-size touring motorcycle, cruiser
Key Selling Points:
Comfortable touring, classic styling, powerful V-twin engine, detachable windscreen, spacious saddlebags.
Competitors:
Indian Chief Vintage, Victory Cross Country, Honda Gold Wing (for touring aspects), other large displacement cruisers.
Model Identity:
The FLHR Road King is a quintessential Harley-Davidson touring motorcycle known for its blend of classic styling and modern touring capabilities.
Manual Value Proposition:
This comprehensive workshop manual empowers owners and technicians with the detailed information needed for proper maintenance, troubleshooting, and repair, ensuring the longevity and optimal performance of the 2015 FLHR Road King.
Engine Systems:
Engine disassembly, assembly, inspection, troubleshooting, diagnostics for Twin Cam 103 V-Twin engine.
Fuel System:
Fuel injection (EFI), fuel pump, fuel filter, fuel lines, throttle body, sensors, evaporative emissions control (EVAP).
Ignition System:
Ignition module, spark plugs, ignition coils, crankshaft position sensor, camshaft position sensor.
Transmission System:
Six-speed Cruise Drive transmission, clutch, primary drive, final drive, gearbox disassembly, assembly, and adjustment.
Electrical System:
Wiring diagrams, battery, charging system (alternator, regulator), starter, lighting (headlight, taillight, turn signals), instrumentation, security system, audio system.
Chassis Systems:
Frame, front suspension (forks, triple clamps), rear suspension (shock absorbers, swingarm), steering system, wheels, tires.
Braking System:
Front and rear brake systems, brake calipers, brake discs, master cylinders, brake lines, ABS (Anti-lock Braking System) if equipped.
Bodywork And Trim:
Fairing, saddlebags, fenders, seat, handlebars, controls, mirrors, fuel tank, instrument cluster.
Maintenance Procedures:
Oil changes, filter replacement, air filter cleaning/replacement, spark plug replacement, tire pressure checks, brake fluid checks, belt inspections.
Diagnostic Procedures:
Troubleshooting common issues, reading diagnostic trouble codes (DTCs), using diagnostic tools (e.g., Digital Technician).
Repair Procedures:
Detailed step-by-step instructions for component removal, installation, and overhaul for all major systems.
Overhaul Procedures:
Complete engine rebuild, transmission rebuild, suspension overhaul, brake system refurbishment.
Adjustment Procedures:
Clutch adjustment, throttle cable adjustment, primary chain adjustment, suspension settings.
Diagnostic Depth:
Advanced diagnostics, circuit testing, component testing, sensor data analysis.
Repair Complexity:
Suitable for DIY enthusiasts with mechanical experience and professional technicians.
Information Detail:
Includes torque specifications, tolerances, assembly sequences, and component diagrams.
Engine Type:
Air-cooled, Twin Cam 103 V-Twin
Displacement:
1690 cc (103 cubic inches)
Bore X Stroke:
3.875 in. x 4.380 in. (98.4 mm x 111.3 mm)
Valve Train:
Pushrod-actuated, overhead valves with two valves per cylinder
Torque 103:
Approx. 101 ft-lbs (137 Nm) @ 3500 RPM (may vary slightly)
Horsepower:
Not officially rated, but estimated to be around 75-80 HP at the crankshaft.
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Premium unleaded gasoline, minimum 91 octane recommended
Oil Type:
Harley-Davidson Genuine V-Twin 20W-50 Synthetic (or equivalent)
Oil Capacity:
Approximately 5.0 US quarts (4.7 liters) with filter change.
Initial Service:
1,000 miles (1,600 km) or 6 months
Subsequent Service:
Every 5,000 miles (8,000 km) or 12 months, whichever comes first.
Engine Oil Spec:
Harley-Davidson Genuine V-Twin 20W-50 Synthetic
Transmission Fluid Spec:
Harley-Davidson Formula + or equivalent 80W-90 gear oil
Primary Chain Case Oil Spec:
Harley-Davidson Formula + or equivalent Primary Lubricant
Coolant Spec:
N/A (Air-cooled engine)
Common Wear Items:
Tires, brake pads, clutch plates, spark plugs, drive belt.
Potential Concerns 2015:
Some owners reported minor electrical gremlins or sensor issues, often addressed with software updates or component checks. Clutch judder can occur with age and mileage. Primary chain adjustment is a routine maintenance item.
Oil Filter Part Number:
63731-09 (may vary, check specific application)
Air Filter Part Number:
29000002 (may vary, check specific application)
Heritage Statement:
Harley-Davidson is an iconic American motorcycle manufacturer with a rich history dating back to 1903, synonymous with freedom, individuality, and the open road.
Road King Lineage:
The Road King nameplate has been a staple in Harley-Davidson's touring lineup since the early 1990s, evolving from its predecessor, the Electra Glide Sport, and consistently offering a classic, unfaired touring experience.
2015 Model Updates:
For 2015, the FLHR Road King received the Twin Cam 103 engine as standard, along with refinements to the Cruise Drive transmission and updated styling cues, solidifying its position as a premium touring cruiser.
Manufacturing Location:
United States
