This manual covers the FLSTFI Fat Boy, a cruiser motorcycle produced in 2001. Renowned for its iconic design featuring a wide front tire, ample chrome accents, and a distinctive teardrop fuel tank, the FLSTFI is powered by the robust Twin Cam 88B V-twin engine. This model represents a significant part of heritage, celebrated for its substantial presence and classic cruiser aesthetics, making it a desirable choice for riders seeking a blend of style and performance. This comprehensive workshop service repair manual in English provides complete factory service and repair information for the FLSTFI Fat Boy. It details procedures for engine overhaul, transmission service, fuel and ignition systems, chassis, suspension, brakes, and the electrical system. The manual includes routine maintenance tasks, diagnostic troubleshooting, and technical specifications, making it an essential resource for owners and technicians aiming to maintain, repair, and optimize the performance and longevity of their motorcycle. 🏷️ Basic Information Identification Make: Harley-Davidson Model: FLSTFI Fat Boy Year: 2001 Market Segment: Cruiser Motorcycle 👋 Introduction Market Position Positioning: Iconic cruiser motorcycle, known for its distinctive styling and powerful V-twin engine. Competitive Analysis Competitors 2001: Indian Chief, Yamaha Road Star, Honda Shadow, Kawasaki Vulcan Key Features Design Elements: Wide front tire, chrome accents, teardrop fuel tank, swept-back handlebars. Engine Type: Harley-Davidson Twin Cam 88B V-twin engine. 📋 Manual Details Coverage Areas General Coverage: Complete Factory Service & Repair Page Count Estimated Pages: Hundreds (downloadable format implies extensive detail) Manual Type Type: Workshop Service Repair Manual Language Primary Language: English Format Download Format: Digital Download (PDF implied) 📖 Manual Coverage Systems Covered Engine: Twin Cam 88B (including teardown, assembly, diagnosis, tuning) Fuel System: Carburetion (Keihin CV type), Fuel Pump, Fuel Tank, Fuel Lines Ignition System: Electronic Ignition, Spark Plugs, Ignition Coils Transmission: 5-Speed Cruise Drive (teardown, assembly, troubleshooting, lubrication) Drivetrain: Primary Drive, Belt Drive, Clutch Operation and Service Chassis Frame: Frame Inspection, Fork Components, Swingarm, Suspension Wheel Suspension Steering: Front Fork (Teardown, Seals, Oil), Rear Shocks, Wheel Bearings, Steering Head Bearings Brakes: Front and Rear Hydraulic Brakes, Caliper Service, Master Cylinder, Brake Lines, Bleeding Procedures Electrical System: Battery, Charging System (Stator, Regulator/Rectifier), Starting System (Starter Motor, Solenoid), Lighting, Gauges, Horn, Wiring Diagrams Bodywork Fittings: Fenders, Fuel Tank, Seat, Handlebars, Control Levers, Mirrors, Footpegs, Exhaust System Diagnostics Troubleshooting: System-specific diagnostic flowcharts and common issue resolutions Procedures Included Routine Maintenance: Oil Changes, Filter Replacements, Spark Plug Service, Chain/Belt Adjustment, Brake Pad Replacement, Air Filter Cleaning/Replacement Engine Overhaul: Complete engine disassembly, inspection, part replacement, and reassembly Transmission Service: Gearbox disassembly, inspection, bearing replacement, clutch adjustment Suspension Service: Front fork seal replacement, fork oil changes, rear shock absorber inspection/replacement Brake System Service: Brake caliper overhaul, master cylinder service, brake bleeding procedures Electrical Diagnostics: Wiring harness troubleshooting, component testing, charging system analysis Fuel System Cleaning: Carburetor cleaning and adjustment, fuel line inspection Wheel Tire Service: Wheel bearing replacement, tire mounting/balancing, spoke tension adjustment (if applicable) Steering Head Service: Steering head bearing adjustment and replacement Technical Depth Depth: Comprehensive (suitable for professional technicians and advanced DIY mechanics) Detail Level: Detailed torque specifications, tolerances, diagnostic procedures, and step-by-step instructions with illustrations 📊 Manual Specifications File Format Format: PDF (Downloadable) Print Quality Readability: High-resolution text and diagrams optimized for printing Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Family: Harley-Davidson Twin Cam 88B Engine Configuration: 45-degree V-twin Displacement: 1450 cc (88 cubic inches) Bore X Stroke: 3.75 in x 4.00 in (95.25 mm x 101.6 mm) Compression Ratio: 8.9:1 Valve Train: Overhead Valves (OHV), 2 valves per cylinder Performance Horsepower Estimate: Approximately 60-65 HP (at crank, manufacturer figures vary) Torque Estimate: Approximately 75-80 lb-ft (at crank, manufacturer figures vary) Fuel System Carburetor Type: Keihin CV (Constant Velocity) 40mm Fuel Type: Unleaded Gasoline, Minimum 87 Octane Fluid Specifications Engine Oil Type: Harley-Davidson 20W-50 or equivalent (meeting Harley-Davidson specification) Engine Oil Capacity: 3.0 US quarts (2.8 liters) with filter change Primary Chain Case Oil Type: Harley-Davidson Primary Chain Lubricant or equivalent Primary Chain Case Oil Capacity: 1 US quart (0.95 liters) 🔧 Transmission Standard Transmission Type: 5-Speed Constant Mesh Optional Optional Transmissions: N/A for this model year Features Drive Type: Belt Drive (Rear) Clutch Type: Wet, Multi-plate Fluid Specifications Transmission Oil Type: Harley-Davidson Transmission and Primary Chain Case Lubricant or equivalent Transmission Oil Capacity: 24 US fluid ounces (710 ml) 📐 Dimensions Exterior Overall Length: Approximately 93.9 in (2385 mm) Wheelbase: 63.5 in (1613 mm) Seat Height: 26.2 in (665 mm) Ground Clearance: 4.7 in (119 mm) Weights Dry Weight: Approximately 657 lbs (298 kg) Gross Vehicle Weight Rating Gvwr: Not specified, but typically around 1000 lbs for cruiser motorcycles Fuel Capacity Fuel Tank Capacity: 4.0 US gallons (15.1 liters) Wheel Tire Front Tire Size: 130/90B16 67H Rear Tire Size: 150/80B16 77H Front Wheel Type: Cast Aluminum Disc Rear Wheel Type:...