Page 1 of 78
PRINTED IN JAPAN
2001 · 2 - 0.3 ´ 1 CR
(E) PRINTED ON RECYCLED PAPER
YAMAHA MOTOR CO., LTD.
3MW-28199-E3
OWNER’S MANUAL
SR125
Page 2 of 78
F_5eb_Toc0.fm Page 2 Wednesday, February 2, 2000 2:02 PM
Page 3 of 78
EAU00001
INTRODUCTION
Welcome to the Yamaha world of motorcycling!
As the owner of a SR125, you are benefiting from Yamaha’s vast experience in and
newest technology for the design and the manufacture of high-quality products,
which have earned Yamaha a reputation for dependability.
Please take the time to read this manual thoroughly, so as to enjoy all your SR125’s
advantages. The owner’s manual does not only instruct you in how to operate,
inspect and maintain your motorcycle, but also in how to safeguard yourself and oth-
ers from trouble and injury.
In addition, the many tips given in this manual will help to keep your motorcycle in
the best possible condition. If you have any further questions, do not hesitate to con-
tact your Yamaha dealer.
The Yamaha team wishes you many safe and pleasant rides. So, remember to put
safety first!
E_3mw.book Page 1 Monday, February 5, 2001 9:54 AM
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EAU00005
IMPORTANT MANUAL INFORMATIONParticularly important information is distinguished in this manual by the following notations:
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!
WARNING
Failure to follow WARNING instructions could result in severe injury or death
to the
motorcycle operator, a bystander or a person inspecting or repairing the motorcycle.
CAUTION:A CAUTION indicates special precautions that must be taken to avoid damage to the
motorcycle.NOTE:
A NOTE provides key information to make procedures easier or clearer.
NOTE:@ l
This manual should be considered a permanent part of this motorcycle and should remain
with it even if the motorcycle is subsequently sold.
l
Yamaha continually seeks advancements in product design and quality. Therefore, while
this manual contains the most current product information available at the time of printing,
there may be minor discrepancies between your motorcycle and this manual. If there is any
question concerning this manual, please consult your Yamaha dealer.
@
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IMPORTANT MANUAL INFORMATION
EW000002
WARNING
@ PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING
THIS MOTORCYCLE. @
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IMPORTANT MANUAL INFORMATION
EAU03337
SR125
OWNER’S MANUAL
© 2001 by Yamaha Motor Co., Ltd.
1st Edition, January 2001
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan.
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EAU00009
TABLE OF CONTENTS
GIVE SAFETY THE RIGHT OF WAY ..................1-1
DESCRIPTION ....................................................2-1
Left view ............................................................. 2-1
Right view...........................................................2-2
Controls/Instruments ..........................................2-3
INSTRUMENT AND CONTROL FUNCTIONS ....3-1
Main switch/steering lock ................................... 3-1
Indicator lights ....................................................3-2
Speedometer......................................................3-2
Handlebar switches ............................................3-2
Clutch lever ........................................................3-4
Shift pedal ..........................................................3-4
Front brake lever ................................................ 3-4
Rear brake pedal................................................ 3-5
Fuel tank cap......................................................3-5
Fuel ....................................................................3-6
Fuel cock ............................................................3-6
Starter (choke) knob...........................................3-7
Seat ....................................................................3-8
Helmet holder .....................................................3-8
Rear shock absorber adjustment .......................3-9
Sidestand ...........................................................3-9
Sidestand/clutch switch operation check ......... 3-10PRE-OPERATION CHECKS ...............................4-1
Pre-operation check list......................................4-1
OPERATION AND IMPORTANT RIDING
POINTS................................................................5-1
Starting the engine .............................................5-1
Starting a warm engine ......................................5-3
Shifting ...............................................................5-4
Recommended shift points
(for Switzerland only) ......................................5-4
Tips for reducing fuel consumption ....................5-5
Engine break-in ..................................................5-5
Parking ...............................................................5-6
PERIODIC MAINTENANCE AND MINOR
REPAIR................................................................6-1
Tool kit................................................................6-1
Periodic maintenance and lubrication chart .......6-2
Panel removal and installation ...........................6-5
Panels A and B ..................................................6-5
Spark plug ..........................................................6-6
Engine oil ...........................................................6-8
Air filter .............................................................6-10
Carburetor adjustment .....................................6-11
Idle speed adjustment ......................................6-11
123
456
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TABLE OF CONTENTS
Throttle cable free play adjustment .................. 6-12
Cam chain adjustment ..................................... 6-12
Valve clearance adjustment ............................. 6-13
Tires ................................................................. 6-13
Wheels ............................................................. 6-15
Clutch lever free play adjustment..................... 6-16
Front brake lever free play adjustment ............ 6-16
Rear brake pedal height and free play
adjustment .................................................... 6-17
Brake light switch adjustment .......................... 6-18
Checking the front brake pads and
rear brake shoes .......................................... 6-19
Inspecting the brake fluid level......................... 6-20
Brake fluid replacement ................................... 6-20
Drive chain slack check ................................... 6-21
Drive chain slack adjustment ........................... 6-22
Drive chain lubrication...................................... 6-23
Cable inspection and lubrication ...................... 6-23
Throttle cable and grip lubrication .................... 6-23
Brake and shift pedal lubrication ...................... 6-24
Brake and clutch lever lubrication .................... 6-24
Center and sidestand lubrication ..................... 6-24
Front fork inspection ........................................ 6-25
Steering inspection .......................................... 6-26
Wheel bearings ................................................ 6-26
Battery.............................................................. 6-26
Fuse replacement ............................................ 6-28
Headlight bulb replacement ............................. 6-29Turn signal and tail/brake light bulb
replacement.................................................. 6-30
Front wheel removal ........................................ 6-30
Front wheel installation .................................... 6-31
Rear wheel removal ......................................... 6-32
Rear wheel installation ..................................... 6-33
Troubleshooting ............................................... 6-33
Troubleshooting chart ...................................... 6-34
MOTORCYCLE CARE AND STORAGE ............. 7-1
Care ................................................................... 7-1
Storage .............................................................. 7-4
SPECIFICATIONS ............................................... 8-1
Specifications ..................................................... 8-1
How to use the conversion table ........................ 8-5
CONSUMER INFORMATION.............................. 9-1
Identification number records............................. 9-1
Key identification number................................... 9-1
Vehicle identification number ............................. 9-1
Model label......................................................... 9-2
789
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