KX250F Motorcycle Service Manual

KX250F Motorcycle Service Manual Quick Reference Guide General Information 1 j Periodic Maintenance 2 j Fuel System 3 j Cooling System 4 j Engine Top End 5 j Engine Right Side 6 j Engine Lubrication System 7 j Engine Removal/Installation 8 j Crankshaft/Transmission 9 j Wheels/Tires 10 j Final Drive 11 j Brakes 12 j Suspension 13 j Steering 14 j Frame 15 j Electrical System 16 j Appendix 17 j This quick reference guide will assist you in locating a desired topic or pro- cedure. •Bend the pages back to match the black tab of the desired chapter num- ber with the black tab on the edge at each table of contents page. •Refer to the sectional table of contents for the exact pages to locate the spe- cific topic required. KX250F Motorcycle Service Manual All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic mechanical photocopying, recording or otherwise, without the prior written permission of Quality Assurance Department/Consumer Products & Machinery Company/Kawasaki Heavy Industries, Ltd., Japan. No liability can be accepted for any inaccuracies or omissions in this publication, although every possible care has been taken to make it as complete and accurate as possible. The right is reserved to make changes at any time without prior notice and without incurring an obligation to make such changes to products manufactured previously. See your Motorcycle dealer for the latest information on product improvements incorporated after this publication. All information contained in this publication is based on the latest product information available at the time of publication. Illustrations and photographs in this publication are intended for reference use only and may not depict actual model component parts. © 2003 Kawasaki Heavy Industries, Ltd. Second Edition (1) : Jan. 16 2004 (K) LIST OF ABBREVIATIONS A ampere(s) lb pound(s) ABDC after bottom dead center m meter(s) AC alternating current min minute(s) ATDC after top dead center N newton(s) BBDC before bottom dead center Pa pascal(s) BDC bottom dead center PS horsepower BTDC before top dead center psi pound(s) per square inch °C degree(s) Celsius r revolution DC direct current r/min, rpm revolution(s) per minute F farad(s) TDC top dead center °F degree(s) Fahrenheit TIR total indicator reading ft foot, feet V volt(s) g gram(s) (mass) W watt(s) h hour(s) Ω ohm(s) kg (mass) kgf (force) L liter(s) Foreword This manual is designed primarily for use by trained mechanics in a properly equipped shop. How to Use This Manual However, it contains enough detail and basic in- In preparing this manual, we divided the prod- formation to make it useful to the owner who de- uct into its major systems. These systems be- sires to perform his own basic maintenance and came the manual’s chapters. All information repair work. A basic knowledge of mechanics, for a particular system from adjustment through the proper use of tools, and workshop proce- disassembly and inspection is located in a sin- dures must be understood in order to carry out gle chapter. maintenance and repair satisfactorily. When- The Quick Reference Guide shows you all ever the owner has insufficient experience or of the product’s system and assists in locating doubts his ability to do the work, all adjust- their chapters. Each chapter in turn has its own ments, maintenance, and repair should be car- comprehensive Table of Contents. ried out only by qualified mechanics. The Periodic Maintenance Chart is located in In order to perform the work efficiently and the Periodic Maintenance chapter. The chart to avoid costly mistakes, read the text, thor- gives a time schedule for required maintenance oughly familiarize yourself with the procedures operations. before starting work, and then do the work care- If you want spark plug information, for exam- fully in a clean area. Whenever special tools or ple, go to the Periodic Maintenance Chart first. equipment are specified, do not use makeshift The chart tells you how frequently to clean and tools or equipment. Precision measurements gap the plug. Next, use the Quick Reference can only be made if the proper instruments are Guide to locate the Periodic Maintenance chap- used, and the use of substitute tools may ad- ter. Then, use the Table of Contents on the first versely affect safe operation. page of the chapter to find the Spark Plug sec- To get the longest life out of your vehicle: tion. Follow the Periodic Maintenance Chart in the • Whenever you see these WARNING and Service Manual. CAUTION symbols, heed their instructions! Be alert for problems and non-scheduled • Always follow safe operating and maintenance maintenance. practices. • Use proper tools and genuine Kawasaki Mo- torcycle parts. Special tools, gauges, and WARNING testers that are necessary when servicing This warning symbol identifies special Kawasaki motorcycles are introduced by the instructions or procedures which, if not Special Tool Catalog or Manual. Genuine correctly followed, could result in per- parts provided as spare parts are listed in the sonal injury, or loss of life. Parts Catalog. • Follow the procedures in this manual care- CAUTION fully. Don’t take shortcuts. • Remember to keep complete records of main- This caution symbol identifies special tenance and repair with dates and any new instructions or procedures which, if not parts installed. strictly observed, could result in damage to or destruction of equipment. This manual contains four more symbols (in addition to WARNING and CAUTION) which will help you distinguish different types of information. NOTE ○This note symbol indicates points of particular interest for more efficient and con- venient operation. • Indicates a procedural step or work to be done. ○Indicates a procedural sub-step or how to do the work of the procedural step it follows. It also precedes the text of a NOTE. Indicates a conditional step or what action to take based on the results of the test or inspection in the procedural step or sub-step it follows. In most chapters an exploded view illustration of the system components follows the Table of Contents. In these illustrations you will find the instructions indicating which parts require specified tightening torque, oil, grease or a locking agent during assembly. GENERAL INFORMATION 1-1 General Information 1 Table of Contents Before Servicing ..................................................................................................................... 1-2 Model Identification................................................................................................................. 1-7 General Specifications............................................................................................................ 1-8 Unit Conversion Table ............................................................................................................ 1-10 1-2 GENERAL INFORMATION Before Servicing Before starting to perform an inspection service or carry out a disassembly and reassembly operation on a motorcycle, read the precautions given below. To facilitate actual operations, notes, illustrations, photographs, cautions, and detailed descriptions have been included in each chapter wherever necessary. This section explains the items that require particular attention during the removal and reinstallation or disassembly and reassembly of general parts. Especially note the following: Edges of Parts Lift large or heavy parts wearing gloves to prevent injury from possible sharp edges on the parts. Solvent Use a high flush point solvent when cleaning parts. High flush point solvent should be used according to directions of the solvent manufacturer. Cleaning vehicle before disassembly Clean the vehicle thoroughly before disassembly. Dirt or other foreign materials entering into sealed areas during vehicle disassembly can cause excessive wear and decrease performance of the vehicle. Arrangement and Cleaning of Removed Parts Disassembled parts are easy to confuse. Arrange the parts according to the order the parts were disassembled and clean the parts in order prior to assembly. GENERAL INFORMATION 1-3 Before Servicing Storage of Removed Parts After all the parts including subassembly parts have been cleaned, store the parts in a clean area. Put a clean cloth or plastic sheet over the parts to protect from any foreign materials that may collect before re-assembly. Inspection Reuse of worn or damaged parts may lead to serious ac- cident. Visually inspect removed parts for corrosion, discol- oration, or other damage. Refer to the appropriate sections of this manual for service limits on individual parts. Replace the parts if any damage has been found or if the part is be- yond its service limit. Replacement Parts Replacement Parts must be KAWASAKI genuine or rec- ommended by KAWASAKI. Gaskets, O rings, Oil seals, Grease seals, circlips or cotter pins must be replaced with new ones whenever disassembled. Assembly Order In most cases assembly order is the reverse of disassembly, however, if assembly order is provided in this Service Manual, follow the procedures given. Tightening Sequence Bolts, nuts, or screws must be tightened according to the specified sequence to prevent case warpage or deformation which can lead to malfunction. If the specified tightening sequence is not indicated, tighten the fasteners alternating diagonally. 1-4 GENERAL INFORMATION Before Servicing Tightening Torque Incorrect torque applied to a

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