2009 Kawasaki KX250F Factory Service & Repair Manual (P/N 99924-1411-01)

This Kawasaki KX250F factory service manual covers the KX250W9F configuration. Publication P/N 99924-1411-01, First Edition (1), dated June 25, 2008, documents engine, drivetrain, chassis, and electrical service and repair.

• Engine and valvetrain: Engine removal, top-end rebuilds, valve-clearance adjustment, camshaft-chain timing, cylinder inspection, and crankcase separation.

• Clutch and transmission: Clutch overhaul, transmission-shaft disassembly, shift-fork inspection, gear inspection, and external shift-mechanism service.

• Fuel system: KEIHIN FCR-MX37 carburetor disassembly, fuel-level adjustment, accelerator-pump service, air-cleaner maintenance, and hot-starter cable inspection.

• Cooling system: Cooling-system pressure testing, radiator-cap inspection, coolant replacement and air bleeding, plus water-pump seal and bearing replacement.

• Suspension: Showa fork teardown, oil changes, damping adjustments, rear-shock service, and Uni-Trak linkage inspection and lubrication.

• Brakes and chassis: Brake bleeding, caliper and master-cylinder repair, wheel-bearing replacement, steering-stem service, and final-drive inspection.

• Electrical diagnosis: Wiring diagrams, ignition troubleshooting, stick-coil and magneto tests, crankshaft-sensor checks, and throttle-sensor adjustment.

Written primarily for trained mechanics in a properly equipped shop, the manual also supports owners doing basic maintenance and repair who understand mechanics, tool use, and workshop procedures.

Engine Inspection and Internal Repair

Valvetrain coverage includes shim selection, valve-guide work, valve-seat repair, and compression-test diagnosis. The camshaft-chain-tensioner section explains how partial loosening followed by retightening can damage the tensioner and chain.

Cylinder and crankshaft limits: The plated cylinder cannot be bored or honed; its inspection section specifies replacement when wear exceeds the limits. Crankshaft disassembly and reassembly require a shop with the equipment needed to maintain the specified tolerances.

The Engine Oil Flow Chart accompanies oil-pump inspection and oil-pressure testing. The oil-filter instructions warn that reversed installation can stop oil flow and cause engine seizure.

The racing maintenance chart, component-specific torque and locking-agent tables, and Unit Conversion Table support the individual service sections.

Carburetor and Cooling-System Work

Carburetor documentation distinguishes service fuel level from float height and covers the jets, accelerator pump, and hot-starter components. Throttle-sensor inspection and position adjustment address the sensor fitted to this carburetor.

Fuel-system and cooling-system exploded views show component relationships and assembly callouts. Special-tool references identify the Pilot Screw Adjuster, D (57001-1588), while the water-pump section covers impeller inspection and oil-seal and bearing installation.

Keep the motorcycle securely supported during service, and observe the manual’s cooling precautions before opening the cooling system.

Suspension, Bearings, and Brake Wear

Fork service distinguishes cylinder-unit filling from outer-tube oil quantity. Bushing, spring, and seal inspections accompany the disassembly and assembly procedures; the specified fork oil-seal driver is 57001-1662.

Uni-Trak and steering: Tie-rod and rocker-arm sections cover bearing replacement and sleeve inspection. Steering-stem procedures address bearing removal, lubrication, and adjustment.

Wheel-bearing and spoke checks, final-drive alignment, and semi-double-cradle frame inspection extend the chassis coverage. Master-cylinder cup inspection and caliper holder-shaft checks address damage and wear associated with leakage, uneven pad wear, or brake drag.

Ignition Fault Isolation and Routing References

Digital AC-CDI diagnosis includes resistance, output-voltage, and peak-voltage checks for the ignition components. The Wiring Diagram and Ignition System Troubleshooting Chart help distinguish wiring faults from component problems before replacement.

The appendix’s Cable, Wire, and Hose Routing drawings support reassembly. Its troubleshooting guide groups common causes of starting difficulties, poor running, overheating, shifting problems, and unstable handling; it is a guide to common faults rather than an exhaustive diagnosis list.

A Preview of Engine and Clutch Inspection Values

These examples represent a small selection of the inspection data in the manual.

The cylinder-head warp service limit is 0.05 mm. Standard piston-to-cylinder clearance is 0.030–0.057 mm, with cylinder measurements taken cold at room temperature.

Clutch friction plates have a standard thickness of 2.72–2.88 mm and a 2.5 mm service limit, distinguishing the normal thickness range from the wear threshold.

Search, Bookmarks, and PDF Contents

Text navigation and wiring detail: Service text is searchable, and embedded bookmarks cover all chapters and numerous individual procedures. Labels within the main Wiring Diagram and some other illustrations are not searchable. Small wire-color codes in the main diagram are readable when enlarged.

One printable, English-language PDF contains 382 pages total: 365 numbered manual pages, six unnumbered cover and reference pages, and 11 blank pages. The cover and reference pages include the front matter and model-application back page; all are already included in the total.