2008 Harley-Davidson Sportster Models Factory Service Manual (P/N 99484-08)

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Harley-Davidson Models Covered & Key Technical Specifications

Models: Harley-Davidson Sportster Models, XL 883, XL 883C, XL 883L, XL 883R, XL 1200C, XL 1200L, XL 1200N, XL 1200R
Sub-models / Variants: Custom, Low, Roadster, Nightster, Mid-mount controls, Forward controls, Laced wheels, Cast wheels
Trade Names: Sportster, Evolution
Model Years: 2008
Technical Data:

  • Engine: Evolution 883cc or 1200cc, air-cooled, fuel-injected
  • Oil Capacity: 2.8 qt (2.65 L)
  • Spark Plug Gap: 0.038–0.043 in (0.96–1.09 mm)
  • Engine Idle Speed: 950–1050 RPM
  • Rear Axle Nut Torque: 95–105 ft-lbs (129–142 Nm)
  • Primary Chain Tension (Hot): 1/4–3/8 in (6.3–9.5 mm)
  • Brake Fluid Type: D.O.T. 4
Technical Specifications
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Document Number / Seller:
29750 / Douglas Henry
File Size:
70.08 MB
File Type:
PDF
Language:
English
Pages:
657
Printable:
Yes
Category:
Motorbike
Last updated / verified
Jun 16, 2026

Harley-Davidson Manual Features & Content Preview

  • Official OEM publication (P/N 99484-08, first edition 2007) designed for the 2008 Harley-Davidson Sportster platform, covering both 883 and 1200 configurations.
  • 657 pages of factory-authorized procedures detailing engine, chassis, fuel, and electrical systems.
  • Contains hundreds of exploded-view diagrams, electrical schematics, torque specification tables, and maintenance interval charts.

Content and Maintenance Coverage

Whether managing routine service or tackling a complete engine teardown, this manual delivers the exact factory diagnostic procedures. It details complete top and bottom end engine rebuilds. You will also find comprehensive breakdowns of fuel injection systems and transmission assemblies. To speed up troubleshooting in the bay, precise diagnostic tables help isolate engine performance issues, electrical system faults, and handling irregularities.

Additional technical sections dive into front and rear suspension work, steering head adjustments, and brake system overhauls. Need to replace the primary chain drive, adjust belt guards, or install a new lighting module? The publication provides complete wiring diagrams alongside step-by-step hardware installation parameters.

Technical Data Preview

Precision matters on the workbench. This manual catalogs fluid capacities, adjustment ranges, and torque settings for every critical system. For instance, primary chain adjustment on a hot engine requires a specific 1/4 to 3/8 in (6.3 to 9.5 mm) of play. You will also find critical fastener specs, including fuel pump module mounting screws which require 40 to 45 in-lbs (4.5 to 5.1 Nm), and handlebar clamp screws set at 108 to 132 in-lbs (12.2 to 14.9 Nm).

Please note that while this overview highlights exact factory figures, proper workshop safety demands consulting the complete, authoritative OEM documentation before turning any wrenches. Always verify your tools and working environment prior to executing these hands-on procedures, as this reference data alone does not replace qualified technical instruction.

Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

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