Segment:
Cruiser/Touring Motorcycle
Target Audience:
Harley-Davidson FLSTN Softail Deluxe 2015 owners seeking to perform maintenance, repairs, or understand their motorcycle's systems.
Value Proposition:
Offers extensive, detailed information essential for DIY maintenance and repair, potentially saving significant costs compared to dealership service.
Manual Strengths:
Step-by-step instructions, exploded diagrams, comprehensive coverage, troubleshooting guides.
Primary Coverage:
Service, Maintenance, Repair
Estimated Pages:
Extensive (specific count not provided, but described as 'most comprehensive')
Type:
Service and Repair Manual
Format:
Digital (implied by online sales, likely PDF)
Engine:
Detailed engine overhaul, diagnosis, component testing, timing, fuel system, ignition system, lubrication system, cooling system (air-cooled).
Transmission:
Clutch operation, gearbox disassembly and reassembly, final drive, lubrication, troubleshooting.
Brakes:
Front and rear brake systems, hydraulic lines, calipers, master cylinders, bleeding procedures, rotor inspection and replacement.
Electrical:
Wiring diagrams, charging system, starting system, lighting, ignition system components, sensors, diagnostics, battery maintenance.
Chassis:
Frame, suspension (front fork and rear shock absorbers), steering, wheels, tires, bearings, alignment.
Bodywork:
Fenders, fuel tank, seat, handlebars, controls, fairings (if applicable), trim components, cosmetic repairs.
Maintenance:
Scheduled maintenance intervals, fluid changes, filter replacements, lubrication points, brake pad inspection, tire pressure checks.
Repair:
Component replacement (e.g., clutch plates, spark plugs, fork seals), adjustments (e.g., primary chain tension, clutch cable), troubleshooting common faults.
Diagnostics:
Step-by-step troubleshooting guides for various systems, fault code interpretation (if applicable), diagnostic tool usage (if applicable).
Rebuilds:
Engine and transmission rebuild procedures, component specifications, torque values, assembly sequences.
Depth:
Comprehensive (from basic maintenance to complete engine/transmission rebuilds, including electrical diagnostics).
Engine Family:
Harley-Davidson Twin Cam 103
Engine Type:
Air-cooled, Twin Cam 103B V-Twin
Displacement:
1690 cc (103 cubic inches)
Bore X Stroke:
3.875 in. x 4.375 in. (98.4 mm x 111.1 mm)
Torque:
Approx. 99 ft-lbs @ 3500 RPM (specific for 2015 Twin Cam 103B)
Horsepower:
Not officially published by Harley-Davidson, estimated around 70-75 HP at the crank.
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, minimum 91 octane
Oil Type:
Harley-Davidson Synthetic Blue 20W-50 Engine Oil (or equivalent)
Oil Capacity:
3.4 US qt. (3.2 L) with filter change
Spark Plugs:
Harley-Davidson 6R12 (or equivalent, check manual for exact spec)
Length:
95.5 in. (2425 mm)
Height:
57.9 in. (1470 mm)
Wheelbase:
64.5 in. (1638 mm)
Ground Clearance:
4.9 in. (125 mm)
Dry Weight:
680 lbs. (308 kg)
Wet Weight:
Not specified, but typically 50-75 lbs higher than dry weight.
Gvwr:
Not specified, consult owner's manual or VIN lookup.
Payload Capacity:
Not specified, consult owner's manual or VIN lookup.
Seat Height:
25.1 in. (638 mm)
Fuel Capacity:
5.0 US gal. (18.9 L)
Safety Certification:
Meets applicable US EPA, CARB, and DOT regulations.
Braking System:
Hydraulic disc brakes front and rear. ABS (Anti-lock Braking System) may be optional or standard depending on specific trim/market.
Lighting:
Halogen headlight, LED tail lights and brake lights, bullet turn signals.
Chassis Design:
Steel frame, integrated swingarm, designed for stability and handling.
Audio System:
Optional premium sound system with AM/FM radio, CD player, and optional satellite radio. May include handlebar-mounted controls.
Display:
Analog speedometer with integrated digital display for odometer, gear indicator, clock, trip meters, and fuel level.
ABS:
Anti-lock Braking System (ABS) likely an option or standard on some trims. Manual will detail its operation and diagnostics.
Cruise Control:
Electronic cruise control standard on many models for comfortable highway riding.
Security:
H-D Smart Security System (factory installed) with proximity-based fob.
First Service:
1000 miles (1600 km) or 6 months, whichever comes first.
Subsequent Service:
Every 5000 miles (8000 km) or 12 months, whichever comes first.
Primary Chaincase Oil Type:
Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant (or equivalent)
Primary Chaincase Oil Capacity:
2.8 US qt. (2.6 L)
Brake Fluid Type:
DOT 4 (refer to manual for specific Harley-Davidson recommendation)
Fork Oil Type:
Refer to manual; commonly Harley-Davidson Type E (5W) or Type B (10W) fork oil.
Engine Vibration:
Characteristic of V-twin engines, though 2015 models are generally well-balanced. Excessive vibration might indicate mounting issues.
Cam Chain Tensioners:
Older Twin Cam models had hydraulic tensioners that could wear. Later models, including 2015, may have improved components or retrofits, but manual will detail inspection.
Oil Leaks:
Common areas for potential leaks include primary cover, transmission side cover, and engine base gasket. Manual will detail gasket replacement and torque sequences.
Cruise Control Issues:
Electronic cruise control systems can experience sensor or actuator faults, typically covered by diagnostic procedures in the manual.
Manufacturer:
Harley-Davidson Motor Company, established 1903.
Softail Lineage:
The Softail platform, introduced in 1984, is characterized by its hidden rear suspension, mimicking the look of a hardtail frame. The FLSTN ('Nostalgia') model was introduced in 1993 and has evolved with various styling cues and engine upgrades.
Twin Cam Introduction:
The Twin Cam engine, introduced in 1999, replaced the Evolution engine and became the standard for Harley-Davidson's touring and softail models. The Twin Cam 103 variant, common in 2015, offered increased displacement and torque.
Production Location:
USA (primarily York, Pennsylvania, and Milwaukee, Wisconsin facilities).
