2008–2009 Suzuki GSX1300BK, B-King Service Manual (P/N 99500-39320-01E)

• Factory publication identity: Suzuki Part No. 99500-39320-01E, dated July 2007, in a 686-page PDF for the 2008 GSX1300BK K8 family.
• Scheduled service: Factory maintenance and lubrication charts support air-cleaner and valve-clearance service, throttle synchronization, EXCV inspection, compression and oil-pressure checks, fluid service, and chain adjustment.
• Engine repair: Covers engine removal, top- and bottom-end teardown, cam timing, head and valve work, pistons, rings, crank balancer, connecting rods, and crankshaft-bearing inspection and selection.
• FI diagnosis: Provides dealer-mode and Suzuki Diagnostic System procedures, DTC clearing, stored fault-condition data, fail-safe tables, ECM terminal references, and code-specific circuit and active-control tests.
• Fuel and emissions work: Includes fuel-pressure and delivery testing, pump and injector service, throttle-body disassembly, ISC initialization, PAIR, PCV, HO2 and California EVAP checks, and EXCV actuator adjustment.
• Chassis and driveline: Details fork overhaul, rear linkage and swingarm bearings, wheels and balancing, brake and clutch hydraulic repair, transmission service, shift linkage, and riveted drive-chain replacement.
• Electrical reference: Traces ignition, starting, charging, lighting, meter, interlock, immobilizer, and drive-mode circuits with market-specific wiring diagrams and harness-routing views.

K8 Model and Market Coverage

This factory service manual covers the 1,340 cm3 liquid-cooled DOHC four-cylinder and identifies the Suzuki GSX1300BK as a 2008 model (K8); the GSX1300BKUF K8 is also listed for the European market. It is not a K9/2009 publication. Suzuki requires existing motorcycle-service knowledge, practical skill, and proper equipment, including special tools. It therefore suits technicians and experienced owners who meet those requirements, not beginners.

Regional distinctions carry through the repair information. E-02, E-19, and E-24 machines receive immobilizer coverage; E-33 California models have EVAP diagnosis, routing, and service procedures; and separate complete wiring diagrams are supplied for E-02/E-19/E-24, E-03/E-28, and E-33 configurations. The brake chapters cover the conventional hydraulic system and do not include model-specific ABS hydraulic-unit, wiring, or fault-code procedures.

FI Codes, SDS Functions, and Schematics

The FI section pairs Suzuki malfunction codes with P-code equivalents, then provides detected conditions, possible causes, circuit checks, and decision tables. It covers CMP and CKP sensors, pressure and temperature inputs, throttle-position and secondary-throttle systems, all primary and secondary injectors, ISC, fuel-pump and ECM power circuits, HO2, EXCVA, PAIR, cooling-fan, and E-33 EVAP control. Representative paths include C11 (P0340), C28 (P1655), C40 (P0505/P0506/P0507), C46 (P1657-H/L or P1658), and C62 (P0443).

Suzuki's “Show Data When Trouble” material explains how stored operating conditions and comparison graphs support intermittent-fault diagnosis. SDS reset and active-control coverage extends to ignition, secondary-throttle, idle-speed, exhaust-valve, PAIR, cooling-fan, and EVAP functions. The manual describes injection timing and the sensor inputs used by the ECM's programmed maps, but it is service and diagnostic information rather than editable fuel-map tables or ECU tuning data.

Named visual references include the FI System Wiring Diagram, Terminal Alignment of ECM Coupler, Camshaft and Sprocket Assembly Diagram, Engine Lubrication Circuit Diagram, Cooling Circuit Diagram, and the market-specific full wiring diagrams. Hose, cable, brake-line, clutch-line, and main-harness routing views support correct reassembly.

Rebuild Data, Special Tools, and Service Cautions

The engine, transmission, clutch, suspension, brake, steering, and electrical sections supply torque tables, service limits, clearances, wear specifications, fluid capacities, adjustment data, and test values. Engine coverage separates in-frame from engine-out work and documents bearing-color selection, valve-seat repair, crankcase assembly, the multistage torque-angle procedure for connecting-rod cap bolts, gearbox shaft service, and inspection. Electrical data cover CKP and ignition-coil checks, generator coil and no-load output tests, battery leakage, regulated voltage, and switch and sensor resistance.

Tool callouts identify the equipment used at the relevant repair procedures, including the SDS set 09904-41010, mode select switch 09930-82720, fuel-pressure adapter and hose attachment 09940-40211 / 09940-40220, front-fork assembling tool 09940-30221, and drive-chain cutting and joining tool 09922-22711.

The manual warns that uneven camshaft-journal-holder drawdown can damage the cylinder head or holder thrust surfaces. EXCV cable adjustment is tied to the specified actuator position because adjustment at full-open or full-closed can damage the EXCVA. Pressurized fuel, brake and clutch fluid, hot cooling-system parts, and engine removal require Suzuki's specified safeguards and support equipment.