This manual covers the Fat Boy, specifically the 15th Anniversary Edition, for the model years 2000 through 2005. The Fat Boy is an iconic cruiser celebrated for its distinctive styling, featuring solid disc wheels, fat tires, and a powerful Evolution Big Twin engine. This particular anniversary model represents a significant milestone, likely incorporating unique cosmetic enhancements to commemorate 15 years of the Fat Boy's enduring legacy in the motorcycle industry. Known for its robust engineering and reliable performance, the Fat Boy has consistently appealed to riders seeking a blend of classic American motorcycle aesthetics and a commanding presence on the road. This comprehensive Factory Service Manual (FSM) provides in-depth information essential for the maintenance, repair, and diagnostics of your Fat Boy. Within its extensive pages, you will find detailed procedures for routine maintenance, engine and transmission overhauls, brake system servicing, and electrical system troubleshooting. The manual also includes critical technical specifications, torque values, wiring diagrams, and systematic diagnostic guides to assist both owners and professional technicians in keeping the motorcycle in optimal condition. Its scope covers all major systems, including the powertrain, chassis, brakes, and electrical components, ensuring you have the knowledge to perform any necessary service or repair. 🏷️ Basic Information Identification Make: Harley-Davidson Model: Fat Boy Special Edition: 15th Anniversary Edition Model Years Covered: 2000, 2001, 2002, 2003, 2004, 2005 Codes Vin Decoder Section: Included for year identification 👋 Introduction Market Position Positioning: Iconic cruiser, celebrating 15 years of the Fat Boy model, representing a significant era in Harley-Davidson's evolution. Competitive Analysis Competition: Competed against other American V-twin cruisers and custom-styled motorcycles from Japanese manufacturers, emphasizing style, heritage, and sound. Key Features Defining Characteristics: Distinctive solid disc wheels, fat tires, FL-style front end, wide handlebars, and the potent Harley-Davidson V-twin engine. Anniversary Distinction: Likely featured unique badging, special paint schemes, or upgraded components to commemorate the 15th anniversary. 📋 Manual Details Coverage Areas Primary Coverage: Complete Factory Service Manual (FSM) Scope: Repair, maintenance, diagnostics, troubleshooting, specifications Page Count Estimated Page Count: 800-1000+ pages (typical for comprehensive FSM of this era) Manual Type Type: Factory Service Manual (FSM) Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Powertrain: Engine, transmission, drivetrain (primary drive, final drive) Chassis: Frame, suspension (front fork, rear shocks), steering, wheels, tires Brakes: Front and rear brake systems (hydraulic, calipers, master cylinders, lines, pads) Electrical: Ignition, charging system (generator/alternator, regulator/rectifier), starting system (starter motor, solenoid), lighting, instrumentation, wiring diagrams, fuses, relays, battery Fuel System: Carburetor (likely Keihin CV 40 for this era), fuel pump, fuel lines, fuel tank Exhaust System: Exhaust pipes, mufflers, mounting hardware Bodywork And Trim: Fenders, fuel tank, seat, handlebars, controls, mirrors, side covers, fairings (if applicable), cosmetic components Emissions Control: If applicable for the target market (e.g., evaporative emissions) Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug service, chain adjustment/lubrication, brake inspection, tire pressure checks Engine Overhaul: Top-end rebuild (cylinders, pistons, heads), bottom-end rebuild (crankshaft, connecting rods, bearings), valve adjustments, cam timing Transmission Service: Clutch adjustment and replacement, gear oil changes, internal transmission component inspection and repair Electrical Diagnostics: Troubleshooting circuits, testing components, wiring harness repair Brake System Repair: Pad replacement, caliper service, master cylinder rebuild, bleeding procedures Suspension Service: Fork seal replacement, fork oil changes, shock absorber service Carburetor Overhaul And Adjustment: Disassembly, cleaning, reassembly, jetting, idle speed and mixture adjustments Troubleshooting Guides: Systematic approaches to diagnosing common and uncommon problems Special Tool Requirements: Identification of necessary Harley-Davidson specific tools Technical Depth Depth: Comprehensive (from basic maintenance to full engine and component rebuilds) Diagnostic Level: Advanced, including torque specifications, clearances, electrical schematics, and troubleshooting flowcharts 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable PDF Print Quality Quality: High resolution, suitable for printing Binding Type Binding Recommendation: Spiral-bound for lay-flat use in a workshop environment Paper Type Paper Recommendation: Heavy-duty, laminated or coated paper to withstand workshop conditions ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 45-degree V-twin OHV Engine Family: Evolution (Evo) Big Twin Displacement: 1450cc (88 cubic inches) Bore X Stroke: 3.75 in x 4.00 in (95.25 mm x 101.6 mm) Compression Ratio: Approximately 8.8:1 to 9.2:1 (varies slightly by year/model) Performance Horsepower Est: Approx. 65-70 HP @ 5200 RPM (crankshaft) Torque Est: Approx. 76-82 ft-lbs @ 3500 RPM (crankshaft) Fuel System Fuel Delivery: Carbureted (Keihin CV 40 typically) Fuel Type: Unleaded gasoline, 91+ octane recommended Engine Oil Oil Type: Harley-Davidson recommended 20W50 motorcycle oil or equivalent API SG or higher Oil Capacity: 3.0 US quarts (2.8 Liters) with filter change Ignition System Ignition Type: Electronic ignition with dual fire 🔧 Transmission Standard Transmission Type: 5-speed constant mesh Clutch Type: Wet, multi-plate Features Primary Drive: Duplex chain, 34/46 teeth Final Drive: Belt drive, 32/65 teeth (48mm belt) Fluid Specifications Transmission Oil Type: Harley-Davidson Formula Plus or equivalent SAE 80W-90 GL-5 gear oil...