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Summary of Contents for Yamaha SR125 98

  • Page 3 Service Manual together with following manual: SR125 ’97 SERVICE MANUAL: 3MW-AE1 SR125 ’98 SUPPLEMENTARY SERVICE MANUAL 1997 by Yamaha Motor Co., Ltd. 1st Edition July 1997 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Co., Ltd.
  • Page 4 It is not possible to include all the knowledge of a mechanic in one manual, so it is assumed that anyone who uses this book to perform maintenance and repairs on Yamaha mo- torcycles has a basic understanding of the mechanical ideas and the procedures of motorcycle repair.
  • Page 5: How To Use This Manual

    HOW TO USE THIS MANUAL CONSTRUCTION OF THIS MANUAL This manual consists of chapters for the main categories of subjects. (See “Illustrated symbols”) 1st title 1 : This is a chapter with its symbol on the upper right of each page. 2nd title 2 : This title appears on the upper of each page on the left of the chapter symbol.
  • Page 6: Illustrated Symbols

    EB003000 ILLUSTRATED SYMBOLS Illustrated symbols 1 to 8 are designed as SPEC thumb tabs to indicate the chapter’s number INFO and content. 1 General information 2 Specifications INSP 3 Periodic inspection and adjustment 4 Engine 5 Carburation 6 Chassis CARB CHAS 7 Electrical 8 Troubleshooting...
  • Page 7 CONTENTS GENERAL INFORMATION ........MOTORCYCLE IDENTIFICATION .
  • Page 9: General Information Motorcycle Identification

    MOTORCYCLE IDENTIFICATION INFO YP100000 GENERAL INFORMATION MOTORCYCLE IDENTIFICATION SR100020 FRAME SERIAL NUMBER The frame serial number 1 is stamped into the right side of the frame. EB100030 ENGINE SERIAL NUMBER The engine serial number 1 is stamped into the crankcase. NOTE: Designs and specifications are subject to change without notice.
  • Page 10: General Specifications

    GENERAL SPECIFICATIONS/ SPEC MAINTENANCE SPECIFICATIONS SPECIFICATIONS GENERAL SPECIFICATIONS Model SR125 Model code: 3MW7 Dimensions: Overall length 2,020 mm Wheelbase 1,285 mm Chassis: Caster angle Trail 95 mm Electrical: Generator system C.D.I. magneto Bulb wattage quantity: Headlight 12 V 35 W/35 W MAINTENANCE SPECIFICATIONS CHASSIS Item...
  • Page 11: Periodic Maintenance/Lubrication Intervals

    Correct if necessary. Check chain slack. Adjust if necessary. Drive chain Make sure that the rear wheel is properly Every 500 km aligned. Clean and lubricate. *: It is recommended that these items be serviced by a Yamaha dealer. –3–...
  • Page 12 Engine oil Clean or replace if necessary. filter element *: It is recommended that these items be serviced by a Yamaha dealer. NOTE: Brake fluid replacement: 1. When disassembling the master cylinder or caliper cylinder, replace the brake fluid. Normally check the brake fluid level and fill the fluid as required.

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