2003–2005 Kawasaki KLF 250, Bayou 250, and Workhorse 250 OEM Service Manual (P/N 99924-1284-03)

• Document set: 328 PDF pages total — Kawasaki All Terrain Vehicle Service Manual, Part No. 99924-1284-03, Third Edition (1), April 27, 2004: 322 pages; KLF250A6F specification sheet: 2 pages; Kawasaki ATV brochure: 4 pages.
• Exact service-manual coverage: 2003 KLF250-A1, 2004 KLF250-A2, and 2005 KLF250-A3, sold under the KLF 250, Bayou 250, and Workhorse 250 names, with beginning frame numbers listed in the factory model-application table.
• Covers Mikuni VM24SS carburetor removal, teardown, cleaning, inspection, fuel-level and float adjustment, throttle and choke cable work, plus the different A1 and A2/A3 jetting and altitude-correction parts.
• Follows engine repair from compression diagnosis and cam-chain timing through cylinder-head, valve-seat, piston, crankshaft, balancer, clutch, five-speed transmission, reverse mechanism, oil-pump, and recoil-starter service.
• Details shaft-drive repair, including output bevel-gear and rear final-drive disassembly, shim selection, backlash and tooth-contact adjustment, propeller-shaft inspection, rear-axle work, and bearing and seal replacement.
• Handles mechanical drum-brake repair, wheel and tire service, steering centering and toe-in adjustment, tie rods, steering stem, suspension arms, shock absorbers, fenders, carriers, and guards.
• Provides battery and charging diagnosis, CDI ignition and peak-voltage tests, starter-motor and relay checks, A1 versus A2/A3 system circuits, regional wiring diagrams, cable and hose routing views, and a symptom-based troubleshooting guide.

Kawasaki designed this service manual primarily for trained mechanics working in a properly equipped shop; it can also support an owner performing basic maintenance and repair who already understands mechanical principles, correct tool use, and standard workshop procedures.

Model and Document Scope

The 322-page manual applies to the 2003-2005 A1 through A3 machines. Its model-application table identifies the following starting points: 2003 A1, JKALFMA1□3B500001 or JKALF250AAB600001; 2004 A2, JKALFMA1□4B523201 or JKALF250AAB601301; and 2005 A3, JKALFMA1□5B534201 or JKALF250AAB602001. The square represents a frame-number digit that varies by machine.

The separate KLF250A6F sheet supplies model specifications and feature information only. It does not extend the service manual's repair coverage beyond A3. Likewise, the four-page European brochure is period sales literature covering several Kawasaki ATV models, not an additional workshop chapter.

Part No. 99924-1284-03 is the printed manual identifier. The number 92104-002 found inside the manual identifies Kawasaki Bond liquid gasket for crankcase assembly, not the publication itself.

Workshop Depth

The fuel chapter gives the A1 its own carburetor calibration and groups A2 onward separately, an important distinction before jets or pilot settings are selected. The top-end material goes well past routine valve adjustment: it covers camshaft and rocker inspection, compression fault charts, valve-guide replacement, seat cutting and lapping, cylinder and piston measurement, and ring wear checks. Engine removal leads into crankcase splitting, crankshaft alignment, connecting-rod inspection, transmission-shaft and shift-drum work, and reverse-shift service.

Final-drive coverage is unusually detailed. Both the front output bevel case and rear final gear case receive dedicated disassembly and assembly procedures, shim part-number tables, backlash checks, and illustrated drive/coast tooth-contact patterns. The chassis chapters add front and rear brake-panel service, drum and shoe wear inspection, steering-stem and tie-rod work, wheel alignment, and suspension-arm bushing service. The rear shock absorbers are sealed units; the manual provides external inspection and replacement guidance rather than internal rebuilding.

Turning the engine with the cam-chain tensioner removed can cause engine damage, while allowing a loose chain to kink at the crankshaft sprocket can damage both chain and sprocket. Striking the alternator rotor can weaken its magnets.

Diagnostics, Diagrams, and Factory Data

Electrical diagnosis covers battery test charging, regulator/rectifier output and staged bench checks, alternator output and stator resistance, ignition-coil and crankshaft-sensor testing, ignition timing, starter-motor internals, starter relays, switches, lighting, and fuse fault isolation. Named visual references include the Engine Oil Flow Chart, Charging System Circuit, Ignition System Circuit, Electric Starter Circuit, Lighting System Circuit, and full wiring diagrams for U.S./Canada, Europe, and Australia models. Exploded assembly views throughout the manual carry component-specific torque, lubricant, sealant, locking-agent, and replacement-part symbols.

Factory reference material includes the periodic maintenance chart, general and component torque tables, fluid types and capacities, adjustment data, service limits, wear specifications, electrical test values, and cable, wire, and hose routing illustrations. Tool callouts identify items such as Fuel Level Gauge 57001-1017, Pilot Screw Adjuster 57001-1239, Compression Gauge 57001-221 with Adapter 57001-1183, Crankcase Splitting Tool 57001-1098, Crankshaft Jig 57001-1174, Bevel Gear Holder 57001-1193, Hand Tester 57001-1394, and Peak Voltage Adapter 57001-1415.

Brake work requires the manual's asbestos-dust precautions, while fuel-system, battery, ignition, and recoil-starter service involves flammable vapor, electrical-shock, and stored-spring hazards. Use the specified tools and follow the factory warnings for each operation.