2006 Harley-Davidson Softail Service Manual (653 Pages)
Complete factory service documentation for Softail models including maintenance, engine, transmission, and electrical systems. Covers all 2006 Softail variants with detailed repair procedures and specifications.
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Harley-Davidson Models Covered & Key Technical Specifications
Models: Harley-Davidson Softail, Fat Boy, Heritage Softail Classic, Night Train
Sub-models / Variants: FLSTC, FLSTF, FLSTN, FLST, FXST, FXSTB, FXSTS, FLSTSC, FXSTD
Build Years: 2006
Technical Data:
- Engine oil capacity: 3.5 qt. (3.31 L)
- Transmission lubricant capacity: 20–24 oz. (590–710 mL)
- Primary chaincase lubricant capacity: 26 oz. (769 mL)
- Fork oil capacity: 12.0–12.9 oz. (356–382 mL) per side
- Spark plug gap: 0.038–0.043 in. (0.97–1.09 mm)
- Idle speed: 950–1050 RPM
- Brake disc lateral runout limit: 0.008 in. (0.2 mm)
- Drive belt deflection: 1/4–5/16 in. (6.4–7.9 mm) at 10 lbs (4.5 kg) force
Harley-Davidson Manual Features & Content Preview
2006 Harley-Davidson Softail Maintenance Scope
- Covers 2006 Harley-Davidson Softail models including Fat Boy, Heritage Softail Classic, and Night Train with fuel-injected and carbureted engines
- Official OEM publication containing torque tables, lubrication charts, electrical diagnostics, and mechanical maintenance procedures
- Contains 47 exploded-view diagrams, 8 wiring-related schematics, and 3 primary maintenance quick-reference tables
- Laid out for standard letter and A4 printing
- Full-text search finds any part number in seconds
- This 2006 edition provides the foundation for the final carbureted Softail engine tuning configurations before the complete transition to electronic fuel injection architecture
Procedural and Diagnostic Documentation
This 653-page factory publication provides the complete set of maintenance procedures for the 2006 Softail line. The opening chapters detail routine servicing, covering everything from pre-ride inspections to seasonal preparation. Technicians and owners will find extensive data on engine oil and primary chaincase lubricant changes, alongside specific adjustment procedures for the clutch and throttle cables. The manual documents the full service scope for the steering head bearings, rocker assemblies, and front fork suspension, including specialized tools required for the Springer front-end variants.
Technical Specification Highlights
Precise reference values ensure the 2006 Harley-Davidson Softail meets factory standards during reassembly. Cylinder head bolt torque values are documented in a multi-stage sequence. The spark plug electrode gap is specified at 0.038–0.043 inches. Transmission lubricant volume is set at 20–24 ounces. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. This official 653-page service manual is the definitive reference for the 2006 Harley-Davidson Softail, providing complete maintenance, chassis, and engine specifications for the air-cooled Twin Cam 88B platform.
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