2006 Buell Lightning XB9S, XB12S Factory Service Manual (P/N 99490-06Y)

• OEM Publication:** P/N 99490-06Y (2006 Edition, 638 pages)
• Model Coverage:** 2006 Buell Lightning XB9S, XB12S, and XB12Ss (including interactive exhaust configurations)

Manual Overview This factory-authorized publication provides the exact specifications and service protocols required to maintain the chassis, fuel injection, electrical networks, and primary drivetrain of your 2006 Buell Lightning. Structured across seven chapters and multiple technical appendices, the documentation covers everything from routine maintenance schedules to in-depth troubleshooting for the starter and transmission. It also details region-specific hardware, such as solenoid testing and throttle position sensor (TPS) calibration for the active intake system found on Japanese models.

Technical Data & Schematics Electrical diagnostics are heavily supported with high-resolution wiring diagrams for the main harness, charging circuits, and engine management system. It pinpoints electrical connector locations from [10] through [179] for fast tracing. All factory torque values are clearly charted, including primary chaincase and clutch inspection covers (84–108 in-lbs) and spark plugs (12–18 ft-lbs), alongside fluid level specs like maintaining brake fluid 1/8 in. (3.2 mm) below the reservoir edge.

Safety Note: Before beginning any maintenance, always verify the motorcycle is securely stabilized on a lift or stand and disconnect the battery ground prior to electrical testing or major teardowns to prevent component damage or physical injury.