2008 Buell XB Models Service Manual

Technician-level documentation for Buell XB models, detailing removal, installation, and adjustment procedures for various components, including diagnostic guidance. Part number: 99490-08Y.

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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.

Buell Models Covered & Key Technical Specifications

Models: Buell XB9SX, Buell XB12S, Buell XB12Scg, Buell XB12Ss, Buell XB12STT, Buell XB12X, Buell Firebolt XB12R, Buell Lightning, Buell Ulysses
Sub-models / Variants: XB9SX, XB12S, XB12Scg, XB12Ss, XB12STT, XB12X, XB12R
Trade Names: Firebolt, Lightning, Ulysses, XB9SX, XB12Scg, XB12Ss, XB12STT, XB12X
Build Years: 2008
Serial Numbers: 4MZ / 5MZ VIN prefixes
Technical Data:

  • Engine Displacement: 984 cc (02), 1203 cc (03)
  • Engine Type: Thunderstorm V-twin
  • Engine Idle Speed: 1050–1150 RPM
  • Transmission Fluid Capacity: 1.0 quart (0.95 liters)
  • Oil Tank Capacity: 2.5 quarts (2.4 liters)
  • Spark Plug Type: 10R12X
  • Spark Plug Gap: 0.035 in (0.9 mm)
  • Drive System: Belt drive
Technical Specifications
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Document Number / Seller:
28035 / Jerry Allen
File Size:
107.93 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Motorbike
Last updated / verified
Apr 17, 2026

Buell Manual Features & Content Preview

2008 Buell XB Models Service Manual Overview

  • Covers 2008 Buell XB models including XB9SX, XB12S, XB12Scg, XB12Ss, XB12STT, XB12X, and Firebolt XB12R variants
  • Official Buell OEM publication 99490-08Y, ©2007
  • Contains 56 specific maintenance, troubleshooting, and chassis service procedures, including torque tables and system diagrams
  • Files are accessible the moment payment clears
  • Stored against your account so you can retrieve it after a hard-drive loss
  • Print resolution preserves exploded-view detail
  • Indexed PDF search covers every chapter and appendix
  • This is the definitive factory reference used for all 2008 Buell XB model scheduled maintenance and mechanical service interventions

Manual Scope and Structure

This 2008 Buell XB service manual provides the complete technical framework for maintaining and repairing the entire XB platform. The content starts with critical shop practices, general maintenance schedules, and fuel system care, moving through detailed chapters on brake system hydraulic service, clutch and primary drive maintenance, and steering head bearing inspection. The document covers every aspect of the chassis, from wheel bearing replacement and tire fitment to front fork rebuilds and rear shock adjustment, ensuring every mechanical component is serviced to factory standards.

Specification and Reference Highlights

The technical data preview includes essential fluid capacities and torque specifications for components such as the primary chain, clutch, and brake assemblies. Engine oil capacity for the 2008 Buell XB series is documented at 2.5 quarts. The front master cylinder reservoir cover torque is listed at 9–13 in-lbs in the chassis specification tables. Spark plug gap for the 10R12X plugs is specified at 0.035 inches. Proper understanding of factory workshop documentation is structured to provide precise reference for routine items, such as the 1.0 quart transmission fluid requirement. Reference only — always consult a certified technician before performing service on this equipment. This official 2008 Buell OEM workshop manual covers the XB9SX, XB12S, XB12Scg, XB12Ss, XB12STT, XB12X, and Firebolt XB12R, documenting engine, chassis, electrical, and suspension specifications for the 2008 model year build.

Document Reference: 99490-08Y

Manual FAQ, Purchase & Download Details

What documentation is provided regarding component breakdowns and exploded views for the Buell XB model assemblies? keyboard_arrow_down

Service manual includes detailed illustrations and exploded views throughout its chapters to help identify the composition of various motorcycle assemblies. These visual aids are designed to provide a clear look at how components are structured within the chassis, engine, and drive systems.

Is there a central reference for torque specifications and tolerance data? keyboard_arrow_down

Specification tables and designated reference sections throughout the document contain lists of torque ranges and technical reference categories.

Are there specific reference charts for electrical system data and connector pinout configurations? keyboard_arrow_down

Manual includes appendix sections dedicated to connector repair, which reference pin and socket housing layouts. Additionally, the electrical chapter contains wiring diagram information and color codes for the covered models.

Which major systems are covered by the chapter structure in this 2008 service manual? keyboard_arrow_down

Document covers a wide range of systems including the engine, fuel system, chassis, transmission, electrical components, and primary drive.

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