Suzuki Bandit GSF1250 2006–2012 Service Manual (P/N 99500-39300-01G)

• Covers 2006–2012 Suzuki Bandit GSF1250 (including GSF1250S, GSF1250A, and GSF1250SA), detailing the 1,255 cc DOHC inline-four engine configurations.
• Official 665-page Suzuki OEM PDF publication (P/N 99500-39300-01G) containing comprehensive maintenance, chassis, and electrical system specifications.
• Includes detailed charts for tappet shim selection and drive chain length limits.
• Contains 91 exploded-view diagrams, comprehensive wiring diagrams, and a complete wiring schematic for fuel injection reference.
• Provides specific Diagnostic Trouble Code (DTC) tables for troubleshooting the FI system.
• Features extensive service data covering the ABS, manual transmission, clutch, steering, and combination meter.
• Details component specifications for the emission control, ignition system, starting system, charging system, lighting systems, and body structure.
• Serves as the primary documentation for the K7 through K9 model series builds.

Manual Coverage and Structure

The 2006–2012 Suzuki Bandit GSF1250 service documentation delivers essential technical data for the entire model range. It is designed specifically for professional technicians and serious DIY mechanics, providing direct access to OEM clearance thresholds to drastically reduce diagnostic time during any complex repair. The manual breaks down critical maintenance requirements clearly. This includes engine lubrication, cooling system inspection, and precise drive chain adjustments. You will also find comprehensive data for troubleshooting fuel delivery issues, alongside step-by-step guides for advanced procedures like throttle valve synchronization, valve clearance adjustments, and ABS control unit/HU removal—tasks that typically demand expensive dealership visits.

Additional segments focus on suspension tuning, brake system overhauls, and top-end disassembly. Each section provides torque specifications, part identification, and detailed system diagrams. Visual aids such as ABS hydraulic unit views, emission control routing drawings, ignition system schematics, clutch assembly diagrams, and periodic maintenance charts help identify components quickly. These technical aids establish exact assembly values to ensure long-term reliability in the shop.

Specification Highlights and Repair Traps

Technical data provided includes clearance charts for accurate valve adjustments. The manual specifies cold intake clearances of 0.10–0.20 mm and exhaust clearances of 0.20–0.30 mm. Fuel tank capacity is strictly documented at 18.5 L for E-33 models and 19.0 L for other global regions. During reassembly, note that the cylinder head bolt final-stage torque is exactly 42 Nm.

When working on the GSF1250 engine, technicians should be aware of specific model idiosyncrasies. The Secondary Throttle Valve Actuator (STVA) often triggers a C28 code due to broken circuit board solder joints, which is frequently misdiagnosed as a complete throttle body failure. Furthermore, when servicing the anti-lock brake system, failing to use the Suzuki SDS tool to cycle the ABS pump can leave trapped air in the hydraulic unit, resulting in a spongy brake lever. Please remember that all technical data is provided for reference purposes. Always ensure you have the proper training or consult a certified technician before performing structural or engine service on your motorcycle to maintain operational safety.