Welcome to the comprehensive service manual for the Fat Boy, 15th Anniversary Edition. As an iconic cruiser motorcycle, the Fat Boy is renowned for its distinctive styling, commanding presence, and the proven performance of its Evolution V-Twin engine. This particular edition celebrates 15 years of the model's heritage, often featuring unique cosmetic touches that distinguish it within the celebrated lineup. Engineered for riders who appreciate classic design and robust American V-twin power, the Fat Boy is built for the open road, offering a timeless riding experience. This workshop service repair manual provides detailed, factory-level information essential for the maintenance and repair of your Fat Boy, 15th Anniversary Edition. It covers all major vehicle systems, including the Evolution engine, transmission, chassis, and electrical components, with in-depth procedures for diagnostics, routine maintenance, and complete rebuilds. Whether you are a seasoned technician or a dedicated owner seeking to understand your motorcycle better, this manual offers step-by-step instructions, technical specifications, and troubleshooting guides to ensure optimal performance and longevity. 🏷️ Basic Information Identification Make: Harley-Davidson Model: Fat Boy Edition: 15th Anniversary Edition Codes Platform Code: FLSTF (general Fat Boy platform) Engine Family: Evolution (V-Twin) 👋 Introduction Market Position Model Segment: Cruiser Motorcycle Brand Heritage Association: Iconic model within Harley-Davidson's lineup, known for its distinctive styling and V-twin performance. Competitive Analysis Direct Competitors: Other V-twin cruisers from brands like Indian Motorcycle, Victory (historically), and certain Japanese manufacturers. Key Features Design Philosophy: Timeless styling with a focus on chrome, classic lines, and a commanding presence. Anniversary Edition Distinction: Specific cosmetic enhancements and potentially unique badging or color schemes marking the 15th anniversary of the Fat Boy model. 📋 Manual Details Coverage Areas Diagnostic Coverage: Comprehensive diagnostic procedures, fault code interpretation, troubleshooting guides Repair Coverage: Detailed step-by-step repair instructions for all major vehicle systems Maintenance Coverage: Scheduled maintenance tasks, fluid changes, filter replacements, lubrication points Electrical Coverage: Wiring diagrams, electrical component testing, ignition system diagnostics, lighting systems Engine Coverage: Engine disassembly, assembly, internal component specifications, timing procedures Transmission Coverage: Transmission removal, installation, internal repairs, clutch service, gear diagnostics Chassis Coverage: Frame inspection, suspension adjustments, wheel bearing service, steering system maintenance Page Count Estimated Pages: Hundreds (as stated in description) Manual Type Type: Workshop Service Repair Manual Origin: Official Factory Service Manual Language Language: English Format Digital Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine (Evolution V-Twin), Fuel System (carbureted or EFI depending on exact year), Ignition System, Exhaust System Drivetrain: Transmission (5-speed constant mesh), Primary Drive System (clutch, compensator, chain), Final Drive System (belt drive) Chassis And Suspension: Frame, Front Fork (Telescopic), Rear Suspension (Shock Absorbers), Wheels, Tires, Brakes (Front Disc, Rear Disc) Electrical System: Battery, Charging System (Alternator/Stator), Starting System, Ignition, Lighting (Headlight, Taillight, Turn Signals), Instrumentation, Wiring Harness Bodywork And Controls: Fenders, Fuel Tank, Seat, Handlebars, Controls (throttle, clutch, brake levers), Footboards/Pegs, Mirrors Procedures Included Preventative Maintenance: Oil changes, filter replacements, spark plug service, chain/belt adjustments, brake fluid flushes, lubrication schedules Repair And Rebuild: Engine top-end and bottom-end rebuilds, transmission overhaul, clutch replacement, fork seal replacement, brake caliper service Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting, electrical fault finding, mechanical issue resolution Adjustments: Carburetor tuning, fuel injection adjustment (if applicable), belt tensioning, clutch and brake lever adjustments, suspension settings Electrical Diagnostics: Testing charging system output, diagnosing ignition failures, troubleshooting lighting circuits, wiring harness inspection Technical Depth Depth Level: Complete Factory Level (suitable for dealership technicians and advanced DIY enthusiasts) Diagnostic Capability: Advanced diagnostics, including electrical system testing and performance tuning recommendations Rebuild Capability: Detailed specifications and procedures for complete engine and transmission rebuilds 📊 Manual Specifications File Format Format: PDF Searchability: Likely text-searchable (standard for professional PDF manuals) Print Quality Print Readability: Designed for clear printing of text and diagrams Binding Type Binding For Digital: N/A (Digital Download) Paper Type Paper For Print: N/A (Digital Download) - Recommended: High-quality matte or semi-gloss paper for printouts ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 45-degree V-twin, Evolution (Big Twin) Displacement: Typically 1450cc (88 cubic inches) for this era of Fat Boy, though specific anniversary models might vary slightly. Bore X Stroke: Approximately 3.75 in x 4.00 in (95.25 mm x 101.6 mm) Compression Ratio: Typically around 8.5:1 to 9.0:1 Performance Horsepower Estimate: Around 65-70 HP (Varies with specific year and tuning) Torque Estimate: Around 80-85 lb-ft @ 3000-3500 RPM (Varies with specific year and tuning) Fuel System Fuel Delivery: Likely either Carbureted (e.g., Keihin CV 40mm) or Electronic Sequential Port Fuel Injection (ESPFI) depending on the specific year of the 15th Anniversary model. Fuel Type: Unleaded Gasoline, 91 Octane (Premium) Recommended Ignition Ignition System: Electronic Ignition with Knock Sensor (if EFI) 🔧 Transmission Standard Transmission Type: 5-speed Constant Mesh Trailing Arm Gear Ratios: Specific ratios detailed in the manual, typically with a taller top gear for highway cruising. Features Clutch Type: Wet, multi-plate, manually operated Primary...