The 2006 Softail represents a cornerstone of American cruiser motorcycle design, renowned for its iconic V-twin engine and classic styling. This model, encompassing chassis codes FXST, FXSTI, FXSTS, FXSTSI, FXSTB, FXSTBI, FXSTC, and FXSTCI, offers a distinct riding experience characterized by its rigid appearance with hidden rear suspension, a hallmark of the Softail platform since its introduction. Built upon a rich heritage, established in 1903, the 2006 Softail continues the legacy of robust engineering and rider-focused features, making it a sought-after machine for both cruising and customization. This comprehensive Factory Service Repair Manual provides complete coverage for the 2006 Softail models. It is designed to be an indispensable resource for owners, mechanics, and technicians, detailing all aspects of maintenance, repair, and diagnostics. Within its hundreds of pages, users will find in-depth procedures for engine systems, transmission and drivetrain, electrical systems, chassis, suspension, and brakes, as well as bodywork and trim. The manual also includes essential information on scheduled maintenance, troubleshooting common issues, utilizing special tools, and understanding technical specifications, ensuring the longevity and optimal performance of your Softail. 🏷️ Basic Information Identification Make: Harley-Davidson Model: Softail Year: 2006 Codes Chassis Code: FXST, FXSTI, FXSTS, FXSTSI, FXSTB, FXSTBI, FXSTC, FXSTCI 👋 Introduction Market Position Market Segment: Cruiser motorcycle, specifically Harley-Davidson's Softail line, known for its classic styling and V-twin engine. Competitive Analysis Competitors 2006: Other Harley-Davidson models, Indian Motorcycles, select models from Japanese manufacturers (e.g., Yamaha Road Star, Honda Shadow) and European manufacturers. Key Features Softail Platform Features: Rigid appearance with hidden rear suspension, characteristic V-twin engine, classic styling cues, diverse model range within the Softail family. 📋 Manual Details Coverage Areas Manual Coverage Scope: Complete factory service and repair Page Count Estimated Page Count: Hundreds Manual Type Manual Type: Factory Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Systems: Fuel system, ignition system, lubrication system, cooling system (if applicable), exhaust system, internal engine components (cylinder head, pistons, crankshaft, camshafts, valves), engine tuning and diagnostics Transmission Drivetrain: Clutch, primary drive, transmission gears and shafts, final drive belt, shifter mechanism, lubrication Electrical System: Battery, charging system (stator, regulator/rectifier), starting system (starter motor, solenoid), ignition system, lighting (headlight, taillight, turn signals), instrumentation, wiring diagrams, fuses, relays, diagnostic connectors (e.g., HD-LAN) Chassis Suspension Brakes: Frame, front suspension (forks, steering head bearings), rear suspension (shock absorbers, swingarm), wheel bearings, brake system (master cylinders, calipers, rotors, lines, pads, bleeding procedures), anti-lock braking system (ABS) diagnostics and service Bodywork And Trim: Body panels, fenders, fuel tank, seat, handlebars, controls, mirrors, exhaust system components, accessory installation Procedures Included Maintenance Procedures: Scheduled maintenance, oil changes, filter replacement, spark plug replacement, brake fluid flush, clutch adjustment, belt tension check, battery maintenance, tire pressure checks Repair Procedures: Engine overhaul, transmission rebuild, clutch replacement, fork seal replacement, brake caliper overhaul, electrical component diagnosis and replacement, body panel repair and replacement Troubleshooting Diagnostics: Step-by-step diagnostic charts for common and uncommon issues, error code interpretation, wiring diagram analysis Special Tools And Techniques: Required specialty tools for specific procedures, torque specifications for all fasteners, critical assembly sequences Technical Depth Technical Depth Level: Comprehensive, covering from basic user maintenance to full engine and transmission overhauls, including electrical diagnostics and advanced troubleshooting. 📊 Manual Specifications File Format File Format Details: PDF (Portable Document Format), allowing for digital viewing, searching, and selective printing. Print Quality Print Quality Attributes: High resolution, suitable for printing individual pages or the entire manual. Includes clear diagrams and schematics. Binding Type Binding Type For Printed Version: Not applicable for PDF download; printable format allows for custom binding (e.g., spiral, three-ring). Paper Type Paper Type For Printed Version: Not applicable for PDF download; suggests standard printer paper. ⚙️ Engine Specifications Primary Engine Engine Family: Harley-Davidson Twin Cam 88B / 96 (depending on specific Softail variant and emissions compliance for the year) Engine Configuration: Air-cooled, 45-degree V-twin Bore X Stroke: For Twin Cam 88B: 3.75 in. x 4.00 in. (95.25 mm x 101.6 mm) Displacement: For Twin Cam 88B: 88 cubic inches (1450 cc) Compression Ratio: Typically 8.3:1 to 9.1:1 depending on specific model and tuning Performance Horsepower Rating: Approx. 65-70 HP (varies by model and exhaust) Torque Rating: Approx. 80-85 ft-lbs @ 3500 RPM (varies by model) Fuel System Fuel Delivery System: Fuel Injection (EFI) - Electronic Sequential Port Fuel Injection (ESPFI) Fuel Type: Unleaded gasoline, minimum 91 octane (R+M/2) Ignition System Ignition Type: Electronic Ignition (Spark Ignition) Lubrication System Oil Type Engine: Harley-Davidson Synchronized Formula SAE 20W50 or equivalent V-twin specific motorcycle oil Oil Capacity Engine: Approx. 4 quarts (3.8 Liters) with filter change 🔧 Transmission Standard Transmission Type: 5-speed constant mesh manual transmission Optional Optional Transmission: Not applicable for 2006 Softail models; all equipped with 5-speed manual. Features Primary Drive Type: Duplex chain primary drive with wet, multi-plate clutch Final Drive Type: Belt drive,...