2006 Harley-Davidson Softail Service Manual (P/N 99482-06)

• Covers 2006 Harley-Davidson Softail models, including the Fat Boy (FLSTF), Heritage Softail Classic (FLSTC), and Night Train (FXSTB), with fuel-injected or carbureted engines.
• Engine repair coverage runs from compression and cylinder-leakage testing to top- and bottom-end overhaul, cam-support-plate service, and counterbalancer inspection and assembly.
• Primary-drive procedures address clutch-pack and bearing replacement, compensating-sprocket alignment, and drive-belt replacement. The five-speed transmission sections cover internal disassembly, inspection, and reassembly.
• Fuel-system work includes C.V. carburetor overhaul, intake-leak testing, EFI fuel-pressure testing, and fuel-pump/fuel-gauge-sender removal and installation.
• Chassis procedures cover hydraulic-fork disassembly, Springer fork and rocker-bearing service, brake-caliper and master-cylinder repair, and brake bleeding.
• Electrical coverage includes starter armature and field-winding tests, battery load and conductance tests, component replacement, and connector repair.
• Appendix B wiring-diagram sheets are not included in this PDF. Circuit drawings within the individual chapters are included; detailed fault-code troubleshooting requires the separate Softail Models Electrical Diagnostic Manual, which is not included.

Workshop Maintenance and Model Coverage

This 653-page PDF contains factory service and repair procedures from Harley-Davidson’s 2006 Softail Service Manual, P/N 99482-06. Coverage also extends to FLST, FLSTN, FXST, and FXSTD, plus the FLSTSC and FXSTS Springer models and their fuel-injected “I” versions. VIN tables identify the engine configurations and FLSTFI/FLSTCI Shrine variants.

The opening chapters cover routine servicing, from basic pre-ride inspections to seasonal storage and return to service. Engine oil and primary chaincase fluid changes sit alongside transmission lubrication and clutch and throttle cable adjustment. The Quick Reference Maintenance Chart consolidates routine service data, supported by lubrication information and fluid-capacity specifications.

Twin Cam 88B and Drivetrain Repair

For the air-cooled, counterbalanced Twin Cam 88B, the engine chapter separates in-chassis work from repairs requiring engine removal. Rocker assemblies and hydraulic lifters receive their own service sections. Cylinder-head work extends to valve-guide replacement and seat refacing; cylinder work includes boring and honing. Oil-pump inspection and oil-pressure testing address lubrication faults.

Factory torque tables and service-wear limits support component inspection and assembly. References include the Cylinder Head Bolt Torque Sequence and Cam Chain Tensioner Shoe Wear illustrations. Cam-compartment procedures identify the HD-42313 cam chain tensioner unloader and warn that uncontrolled tensioner release can stretch the spring or crack the shoe.

Transmission work extends to shifter-cam and fork inspection and main-drive-gear bearing replacement. Appendix D covers Japan-market mainshaft/countershaft assemblies, with case-number identification to distinguish them from other transmissions.

Springer Front Ends and Chassis Service

The FLSTSC/FXSTS sections distinguish steering-head fall-away checks and fork-rocker bearing work from conventional hydraulic-fork service. The Front Fork: FLSTSC/FXSTS exploded view supports spring-fork, rigid-fork, and front-shock work. Specialty-tool references include HD-47255, the Springer steering-head bearing tool.

Wheel procedures include sealed-bearing replacement and laced-wheel truing. Rear brake instructions separate FXST/FXSTB/FXSTS calipers from those used on the other models.

Carburetor Adjustment and EFI Components

Carbureted-model repair covers the vacuum piston, float and needle valve, accelerator pump, and enrichener, with symptom tables for hard starting and poor idling. A specific caution explains how improper float-pin removal can break a carburetor-body pedestal and require replacement of the carburetor.

The EFI section covers induction-module, injector, and idle-air-control replacement, plus service of the in-tank pump, filter, and pressure regulator. California evaporative-emissions plumbing has separate carbureted and EFI layouts. EFI idle-speed setting calls for Digital Technician (HD-44750) rather than a mechanical adjustment.

Electrical Repair and Circuit References

Included chapter schematics cover starting and ignition circuits, the Charging System Circuit, and the EFI System Circuit. Electrical test specifications accompany the relevant component sections. Connector procedures address terminal removal, crimping, and sealed splices, with separate sections for AMP Multilock, Deutsch, Delphi, and Packard connections.

TSM/TSSM coverage includes module-replacement password learning, key-fob assignment, and personal-code entry. Password-learning options are given with and without Digital Technician.

Working on heavy motorcycle machinery requires caution; follow the complete OEM procedures, especially for lifting, spring-loaded suspension, brake service, and pressurized fuel systems.