2007 Suzuki Bandit 1250 / GSF1250 Service Manual (P/N 99500-39300-01E)

• 686-page PDF of the Suzuki factory workshop manual detailing the K7-series build.
• Covers the 2007 Suzuki Bandit 1250 — GSF1250, GSF1250S, GSF1250A, and GSF1250SA — including naked, half-faired, non-ABS, and ABS variants.
• Suzuki publication P/N 99500-39300-01E, copyright Suzuki Motor Corporation 2006.
• Delivers model-specific service data, wiring and hose routing, FI and ABS diagnostic flow charts, special-tool references, and tightening specifications for the 2007 configuration.

Technical Content and System Documentation

This manual breaks down critical maintenance and system overhauls by motorcycle subsystem. It covers the 1,255 cc 4-stroke DOHC liquid-cooled inline-four with 79.0 × 64.0 mm bore and stroke, 10.5:1 compression ratio, electronic fuel injection, and wet-sump lubrication, plus the wet multi-plate clutch and 6-speed constant-mesh transmission.

The repair scope goes well beyond periodic service. Factory procedures cover engine assembly removal and installation, top- and bottom-end disassembly, cylinder-head service, valve-guide replacement and valve-seat repair, crankshaft and connecting-rod bearing selection, throttle-body service and synchronization, transmission removal and countershaft/driveshaft gear disassembly, clutch hydraulic repair, front-fork overhaul, steering-stem bearings, swingarm and cushion-lever bearings, wheel bearings and balancing, and brake master-cylinder/caliper service. GSF1250A/SA models receive a dedicated ABS section covering the control unit/hydraulic unit, wheel-speed sensors and rotors, hydraulic-unit operation, DTC diagnosis, and ABS-specific wiring.

The application data also helps confirm whether the publication matches a market-specific K7. It identifies E-02 U.K., E-03 U.S. except California, E-19 E.U., E-24 Australia, E-28 Canada, and E-33 California configurations with effective frame numbers. North American GSF1250S K7 coverage starts at JS1GW72A 72100001, while GSF1250SA K7 starts at JS1GW72B 72100001. The E-33 California version also receives evaporative-emission coverage and an 18.5 L fuel-tank specification versus 19.0 L for the other listed markets.

Specification Previews and Identification Data

Precision mechanical work requires exact numbers. Cold valve clearance is 0.10–0.20 mm intake and 0.20–0.30 mm exhaust. Engine-oil capacity is 3.0 L for an oil change, 3.5 L with filter replacement, and 3.7 L after overhaul; total coolant capacity is 3.3 L. Compression pressure is specified at 1,300–1,700 kPa with a 1,000 kPa service limit, oil pressure at 100–400 kPa at 3,000 rpm and 60 °C, and fuel-pressure-regulator set pressure at approximately 300 kPa.

Drive-chain data identifies the RK GB50GSVZ3, 118-link chain, 20–30 mm specified slack, and a 319.4 mm service limit measured over 20 pitches. The cylinder-head bolt sequence finalizes at 42 N·m; the clutch sleeve-hub nut is 150 N·m and the swingarm pivot nut 100 N·m. Front and rear brake discs have a 4.5 mm thickness service limit.

The manual preserves configuration differences that matter during repair. Front-fork oil capacity is 472 ml per leg on GSF1250/A and 471 ml on GSF1250S/SA, with respective oil levels of 143 and 144 mm. The rear shock spring-adjuster baseline is the 3rd position on GSF1250/A and 4th on GSF1250S/SA. ABS variants add dedicated 20 A motor and 15 A valve fuse circuits.

Diagnostic, Wiring, and Factory Procedure Coverage

FI diagnostics include a 60-terminal ECM coupler map, DTC and fail-safe tables, sensor input/output values, and circuit-specific troubleshooting for CKP, IAP, TP, ECT, IAT, tip-over, ignition, STVA/STPS, gear-position, injector, ISC, fuel-pump relay, HO2, PAIR, and cooling-fan faults. Suzuki Diagnosis System coverage includes DTC history, reset functions, live-data sampling, and “Show Data When Trouble,” which stores engine and riding-condition data at the time a malfunction is detected. ABS-equipped models add ABS DTC output/deletion and SDS active-control checks of hydraulic-unit operation.

Representative technical views include the FI System Wiring Diagram, Engine Lubrication System Chart Diagram, Cooling Circuit Diagram, ABS Wiring Diagram, ABS Unit Diagram, and Wiring Harness Routing Diagram. Full-machine wiring diagrams are also separated by GSF1250, GSF1250S, GSF1250A, and GSF1250SA configuration.

Special-tool references are tied to the procedures instead of being left generic. Examples include SDS set 09904-41010, FI mode select switch 09930-82720, ABS mode select switch 09930-82710, multi-circuit tester set 09900-25008, needle-pointed probe set 09900-25009, and clutch sleeve-hub holder 09920-53740.

Before FI diagnosis, the manual warns that disconnecting the ECM coupler, battery, ECM ground, or main fuse can erase stored fault information. Reverse battery polarity can damage FI and ABS electronics immediately, and forcing a tester probe into an ECM coupler can bend or open its terminals. In driveline service, aggressive solvents can damage the drive-chain O-rings.

The manual states that generally known service information is not repeated and that later production changes may differ from the specifications current at publication. The ABS control unit/HU is identified as non-disassemblable. Working on motorcycles carries inherent physical risks; follow the manual's precautions for fuel, brake, ABS, cooling, and electrical repair work and use the specified equipment before disassembly or adjustment.