Harley-Davidson Softail 2008 Service Manual (P/N 99482-08A)

The Harley-Davidson 2008 Softail Models Service Manual (P/N 99482-08A) covers the Twin Cam 96B Softail models listed above, including the Brazil-only FLST Heritage Softail and FLSTC/FLSTF Shrine applications.

Searchable PDF, Bookmarks and Wiring Detail

Text search and diagram detail: Searchable text and embedded bookmarks provide access to chapters, procedures, tools, torque tables and the index. Enlarge the wiring diagrams to read small connector numbers, pin labels and wire-color codes.

Supplied as one printable English PDF with 629 pages, including 17 notes pages, 17 separate wiring-diagram caption pages and two back-cover placeholder pages.

Engine Overhaul, Chassis Service and Electrical Components

These selected coverage highlights outline the main workshop areas. Additional topics include headlamp alignment and seasonal storage.

• Engine repair: Compression and cylinder-leakdown testing, engine removal and installation, top- and bottom-end overhaul, cylinder-head work, cam support plate, oil-pump and counterbalancer service.

• Chassis and brakes: Sealed wheel bearings, wheel lacing and truing, cast-wheel runout, vehicle alignment, master-cylinder and caliper repair, brake bleeding, steering-head service, and telescopic and Springer forks.

• Primary drive and transmission: Clutch-pack service, primary chaincase work, drive-belt and sprocket replacement, transmission removal and disassembly, shifter setup, and main-drive-gear bearing and seal repair.

• Fuel and emissions: Induction module, injectors, fuel pump and regulator, fuel-pressure and intake-leak testing, model-specific exhaust systems, California evaporative-emissions equipment, and HDI active-intake and active-exhaust hardware.

• Electrical components: Starter component testing and overhaul, charging and ignition hardware, TSM/TSSM/HFSM replacement, handlebar-switch repair, connector and terminal service, connector locations, and model-specific wiring diagrams.

• Workshop references: Special-tool part numbers, component-specific torque tables, service wear limits, capacities, adjustment data, electrical specifications, and metric, fluid and torque conversions.

The manual is suited to experienced owners performing routine service and to technicians equipped for precision measurement, press work and internal powertrain repairs. Major repairs require the relevant special tools and mechanical qualifications.

Maintenance and Chassis Differences

The maintenance chapter combines the regular-service schedule and quick-reference chart with brake-pad and disc inspection, battery care, belt checks, clutch and throttle-cable adjustment, steering-head fall-away, suspension setup, front-fork oil service, critical fastener checks and symptom-based troubleshooting.

Separate procedures address FLSTSB Springer steering and brake components, along with FXCW/FXCWC body and electrical layouts. Rear shock absorbers are covered for removal, replacement and adjustment; damaged units require assembly replacement. Vehicle alignment is specified as dealer work.

Twin Cam 96B and Transmission Repair

Step-by-step procedures cover engine removal, overhaul and reassembly. The engine section distinguishes work possible with the engine in the chassis from flywheel-compartment repairs requiring engine removal and crankcase separation, helping establish the extent of disassembly before a repair begins.

Oil-flow and breather explanations support oil-pressure testing, valve-train noise diagnosis, and smoking or oil-consumption checks. Internal repair coverage includes valve-guide replacement and seat refacing, cylinder deglazing and boring, piston and ring inspection, camshaft and hydraulic-tensioner service, crankcase bearings, and balance-shaft chain alignment.

The flywheel/connecting-rod section specifies assembly replacement for bent or twisted rods. Transmission material explains power flow through every gear and covers the mainshaft, countershaft, shift drum, forks, side-door bearings, main drive gear and transmission case.

Fuel Testing and Electrical Diagnostic Scope

Fuel-pressure testing addresses complaints such as cranking without starting, cutting out and hesitation. California evaporative-emissions hose routing and international-market intake and exhaust equipment are treated separately where their hardware differs.

Separate diagnostic manual required: Full EFI troubleshooting, ECM and sensor function testing, starter-circuit diagnosis, security-module password learning and fob assignment are directed to the model-year Electrical Diagnostic Manual. This service volume contains component replacement, fuel-pressure and intake-leak tests, starter component tests, electrical specifications and connector repair.

Idle-speed setting requires Digital Technician HD-44750, identified in the manual as dealer-only equipment.

Wiring Diagrams and Factory Tooling

Appendix B contains color-coded domestic and international wiring diagrams, including a dedicated FXCWC set. Illustrated references include Engine Oil Flow: Top End, Camshaft Timing Marks, Transmission Power Flow, the CA Evaporative Emissions Control System schematic, non-FXCWC Starting and Charging Circuits, and the FXCWC Main Harness.

The tool index links equipment to the relevant procedures. Examples include fuel-pressure gauge HD-41182 with adapter HD-44061, balance-shaft retention pins HD-44062, balance-shaft sprocket alignment tool HD-48615, and main-drive-gear bearing and seal installation tool HD-47932.

Repair cautions: Turning the engine using a cam-sprocket flange bolt can break its head and damage the flywheel or camshaft. Removing or installing the front master cylinder without the specified lever insert can damage the stoplight-switch boot and plunger.

Fuel-system, hydraulic-brake, wheel, fork, and internal powertrain work should be undertaken only with the motorcycle securely supported and with the equipment and experience needed to follow the factory safety warnings.

A Preview of Spark-Plug and Clutch Adjustment Data

Spark-plug service specifications include a gap of 0.038–0.043 in. (0.97–1.09 mm).

Clutch adjustment data specify 1/16–1/8 in. (1.6–3.2 mm) of cable free play between the cable ferrule and clutch-lever bracket, with the motorcycle at room temperature.