2003 Harley-Davidson Softail FXST, FXSTB, FXSTC, FLSTF, FLSTS, FXSTD Service Manual (P/N 99482-03)

• Covers 2003 Harley-Davidson Softail models FXST, FXSTB, FXSTC, FLSTF, FLSTS, and FXSTD with both carbureted and EFI configurations
• Official Harley-Davidson publication P/N 99482-03 (Includes Electrical Diagnostics P/N 99498-03)
• Documents maintenance, chassis, engine, fuel system, starter, drive, transmission, and electrical systems across 946 pages
• Includes 68 exploded-view diagrams and 18 torque specification tables for critical fasteners
• Serves as the definitive factory reference for the Twin Cam 88B powertrain, including specific data for carburetor and EFI engine management setups
• Details components such as the Turn Signal Security Module (TSSM), Idle Air Control (IAC), Manifold Absolute Pressure (MAP) sensor, Crank Position (CKP) sensor, Vehicle Speed Sensor (VSS), Engine Temperature (ET) sensor, Intake Air Temperature (IAT) sensor, and Throttle Position (TP) sensor
• Covers the overhaul of the counterbalancer assembly, hydraulic lifters, steering head bearings, Springer rocker bearings, sealed wheel bearings, ignition coil, and fuel pressure regulator

Documentation Walkthrough

The 2003 Harley-Davidson Softail PDF service manual organizes maintenance and repair data into nine primary sections, supplemented by the complete Electrical Diagnostics appendix. These range from basic chassis adjustments to complex engine and fuel system troubleshooting. The document breaks down the V-twin engine, transmission, and primary chaincase, detailing all essential fluid capacities and component inspection criteria. Detailed chapters for the starter, drive, and electrical systems ensure that the mechanical and electronic requirements of the Twin Cam 88B are clearly mapped out. This manual provides step-by-step instructions for complex procedures that typically require an expensive trip to the dealership, such as truing laced wheels, bleeding the D.O.T. 5 silicone brake system, adjusting steering head bearing fall-away, performing TSM/TSSM password learning, and servicing Springer fork rocker bearings. Please note that working on motorcycles involves inherent physical risks; always use appropriate personal protective equipment and ensure your workspace is stable and secure before starting any maintenance.

Torque, Fluid, and Technical Specifications

Accurate specifications are non-negotiable in the shop. This manual provides essential references, such as the 14–21 ft-lbs (19.0–28.5 Nm) torque specification for the transmission drain plug. Brake disc lateral runout is documented at a maximum of 0.008 in. (0.2 mm) across all models. You will find exact fluid requirements, setting the engine oil capacity at 3.5 quarts (3.31 liters) including the filter, while primary chaincase oil is listed at 26 oz. (768.9 ml). Having these precise factory tolerances and visual aids—including wiring diagrams, diagnostic flow charts, engine oil flow system charts, circuit diagrams, connector pin-out views, and transmission power flow diagrams—loaded directly on your shop laptop allows you to bypass trial-and-error parts swapping, drastically reducing diagnostic time on the bench. Maintenance intervals are outlined for 5,000-mile increments, requiring specific attention to rear belt deflection and wheel spoke tension. Search the exact spec you need, verify the component tolerances, and get back to turning wrenches.