🏷️ Basic Information Identification Make: Harley-Davidson Model: FLSTFI Fat Boy ST Year: 2003 Platform: Softail Codes Model Code: FLSTFI 👋 Introduction Market Position Target Audience: Do-it-yourselfers and experienced mechanics Value Proposition Cost Effectiveness: Inexpensive way to keep vehicle working properly, save money on mechanic labor Key Features Completeness: Complete official full factory service repair manual, all styles covered Convenience: Digital format, easily accessible, printable sections Competitive Analysis Market Segment: Cruiser motorcycle market, competing with models from other American and Japanese manufacturers offering similar styling and engine configurations. 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Workshop Manual Language: English Format: PDF Applicability: Specifically covers the Harley Davidson FLSTFI Fat Boy ST 2003 model. Page Count Page Count: Hundreds of pages (exact count not specified in product info, but implies comprehensive coverage) Manual Type Usability: Printable by section or in entirety Source Authenticity: Official Full Factory Service Repair Manual 📖 Manual Coverage Systems Covered Engine Systems: Engine, Fuel System, Cooling System, Engine Lubrication System, Engine Removal/Installation Drivetrain Systems: Clutch, Drive, Transmission, Final Drive Chassis Systems: Chassis, Wheels/Tires, Brakes, Suspension, Steering, Frame Electrical Systems: Electrical System, Wiring Diagram Procedures Included Maintenance Procedures: General Maintenance, Scheduled Service Repair Procedures: Step-by-step instructions for complete disassembly and reassembly, component repair, troubleshooting Troubleshooting Guides: Detailed troubleshooting sections to identify and resolve common and uncommon issues across all systems. Technical Depth Diagnostic Capabilities: Advanced diagnostics based on complete disassembly and detailed troubleshooting guidance Rebuild Information: Complete rebuild procedures for all major components Torque Specifications: Provides precise torque specifications for all fasteners and critical components. Documentation Elements Visual Aids: Hundreds of photos and illustrations 📊 Manual Specifications File Format File Type: PDF Software Requirements: Adobe PDF Reader, Winzip (free) Compatibility Operating Systems: All Versions of Windows and Mac Access Methods Device Compatibility: Desktop PCs, Laptops, Smartphones, Tablets, Web Browsers Licensing Licensing Terms: No extra fees, no expiry dates Print Quality Digital Resolution: High-resolution digital format ensuring clarity of text and images. ⚙️ Engine Specifications Primary Engine Engine Family: Evolution (Evo) Big Twin Engine Displacement: 1449cc (88 cubic inches) Engine Configuration: V-Twin, air-cooled Performance Horsepower: Estimated 63 hp @ 5200 rpm (typical for model/engine) Torque: Estimated 76 lb-ft @ 3500 rpm (typical for model/engine) Fuel System Fuel Delivery: Fuel Injection (Sequential Electronic Fuel Injection - ESPFI) Fuel Type: Unleaded gasoline Cooling System Cooling Method: Air-cooled Lubrication System Oil Type: Harley-Davidson 20W-50 Synthetic Motorcycle Oil (recommended) Oil Capacity: Approximately 4 quarts (3.8 liters) with filter change 🔧 Transmission Standard Transmission Type: 5-speed manual constant mesh Features Clutch Type: Wet, multi-plate Fluid Type Transmission Fluid: Harley-Davidson Formula+ Transmission and Primary Chaincase Lubricant (or equivalent) Fluid Capacity Transmission Fluid Capacity: Approximately 24 US fluid ounces (0.71 liters) 📐 Dimensions Exterior Length: 93.5 inches (2375 mm) Width: 37.4 inches (950 mm) Height: 46.0 inches (1168 mm) Weights Dry Weight: 668 lbs (303 kg) Gross Vehicle Weight Rating: 1160 lbs (526 kg) Wheels Tires Front Tire: 130/90B16 Rear Tire: 150/80B16 Front Wheel: 16-inch chrome laced Rear Wheel: 16-inch chrome laced 🛡️ Safety Features Active Features Braking System: Dual-piston front and rear disc brakes Lighting: Halogen headlamp, LED tail lamp, standard turn signals Passive Features Frame Construction: Steel, cradle frame 💡 Technology Features Infotainment Audio System: Optional accessory audio systems were available for this model, often integrated into fairings or handlebars. Driver Assistance ABS: Anti-lock Braking System (ABS) was typically an optional feature for this model year, not standard. Connectivity Diagnostic Ports: The manual would detail diagnostic port locations and procedures for connecting diagnostic tools (e.g., Harley-Davidson's Digital Technician). 🔧 Maintenance Service Intervals Initial Service: Refer to manual for 1,000-mile (1,600 km) break-in service, typically includes oil change, filter change, and inspection. Regular Service: Every 5,000 miles (8,000 km) or 12 months, whichever comes first. Includes oil and filter change, primary fluid check, inspection of various components. Fluid Specifications Engine Oil Viscosity: 20W-50 Primary Chaincase Fluid: Harley-Davidson Formula+ Transmission and Primary Chaincase Lubricant (or equivalent) Brake Fluid Type: DOT 4 (for hydraulic clutch and brake systems, verify specific system requirements in manual) Known Issues Common Wear Items: Clutch friction plates, brake pads, spark plugs, drive belt, battery Clutch Adjustment: The clutch may require periodic adjustment to maintain proper engagement and disengagement. Common Issues Electrical Connections: Corrosion or loose connections in wiring harness, especially in exposed areas, can lead to intermittent electrical faults. Fuel System Maintenance: Regular cleaning of fuel injectors and checking for proper operation of the fuel pump are important for optimal performance. 📚 Vehicle History Brand Heritage Manufacturer Origin: USA Model Evolution Softail Platform: The Softail chassis, designed by Bill Davis and refined by Harley-Davidson, mimics the appearance of a hardtail frame while incorporating a hidden suspension system for improved ride comfort. Fat Boy Heritage: The Fat Boy model, introduced in 1990, is renowned for its distinctive styling cues, including wide...