background image

EAS20003

IMPORTANT

This manual was produced by MBK Industrie primarily for use by Yamaha dealers and their qualified 
mechanics. It is not possible to include all the knowledge of a mechanic in one manual. Therefore, any-
one who uses this book to perform maintenance and repairs on Yamaha vehicles should have a basic 
understanding of mechanics and the techniques to repair these types of vehicles. Please refer to “BA-
SIC INFORMATION” (separate volume, Y0A-28197-E0*) for basic instructions that must be observed 
during servicing. Repair and maintenance work attempted by anyone without this knowledge is likely to 
render the vehicle unsafe and unfit for use.
Yamaha Motor Company, Ltd. and MBK Industrie are continually striving to improve all of its models. 
Modifications and significant changes in specifications or procedures will be forwarded to all authorized 
Yamaha dealers and will appear in future editions of this manual where applicable.

TIP

• *If the contents of the manual are revised, the last digit of the manual number will be increased by one.
• This Service Manual contains information regarding periodic maintenance to the emission control sys-

tem. Please read this material carefully.

• Designs and specifications are subject to change without notice.

EAS30001

IMPORTANT MANUAL INFORMATION

Particularly important information is distinguished in this manual by the following notations.

This is the safety alert symbol. It is used to alert you to potential personal inju-

ry hazards. Obey all safety messages that follow this symbol to avoid possible 

injury or death.

A WARNING indicates a hazardous situation which, if not avoided, could result 

in death or serious injury.

A NOTICE indicates special precautions that must be taken to avoid damage to 

the vehicle or other property.

A TIP provides key information to make procedures easier or clearer.

WARNING

NOTICE

TIP

EAS20002

MTM125

SERVICE MANUAL

©2021 by MBK Industrie

First edition, May 2021

All rights reserved.

Any reproduction or unauthorized use 

without the written permission of 

MBK Industrie 

is expressly prohibited.

Summary of Contents for XSR125 2021

Page 1: ...2021 SERVICE MANUAL XSR125 MTM125 BFG F8197 E0 ...

Page 2: ......

Page 3: ...icable TIP If the contents of the manual are revised the last digit of the manual number will be increased by one This Service Manual contains information regarding periodic maintenance to the emission control sys tem Please read this material carefully Designs and specifications are subject to change without notice EAS30001 IMPORTANT MANUAL INFORMATION Particularly important information is distin...

Page 4: ...itle To help identify parts and clarify procedure steps there are exploded diagrams 3 at the start of each removal and disassembly section Numbers 4 are given in the order of the jobs in the exploded diagram A number indicates a disas sembly step Symbols 5 indicate parts to be lubricated or replaced Refer to SYMBOLS A job instruction chart 6 accompanies the exploded diagram providing the order of ...

Page 5: ...ITION Serviceable with engine mounted Gear oil Filling fluid Molybdenum disulfide oil Lubricant Brake fluid Special tool Wheel bearing grease Tightening torque Lithium soap based grease Wear limit clearance Molybdenum disulfide grease Engine speed Silicone grease Electrical data Apply locking agent LOCTITE Engine oil Replace the part with a new one G M BF B T R LS M S LT E New ...

Page 6: ......

Page 7: ...EAS10003 TABLE OF CONTENTS GENERAL INFORMATION 1 SPECIFICATIONS 2 PERIODIC CHECKS AND ADJUSTMENTS 3 CHASSIS 4 ENGINE 5 COOLING SYSTEM 6 FUEL SYSTEM 7 ELECTRICAL SYSTEM 8 SELF DIAGNOSTIC 9 ...

Page 8: ......

Page 9: ...1 GENERAL INFORMATION IDENTIFICATION 1 1 VEHICLE IDENTIFICATION NUMBER 1 1 ENGINE SERIAL NUMBER 1 1 MODEL LABEL 1 1 FEATURES 1 2 MULTI FUNCTION METER UNIT 1 2 SPECIAL TOOLS 1 6 ...

Page 10: ...icle identification number 1 is stamped into the steering head pipe EAS30004 ENGINE SERIAL NUMBER The engine serial number 1 is stamped into the crankcase EAS30003 MODEL LABEL The model label 1 is affixed to the frame under the seat This information will be needed to order spare parts 1 1 1 ...

Page 11: ...its 1 Turn the vehicle off 2 While pushing the SELECT button turn the vehicle on 3 Continue to push the SELECT button for at least 5 seconds Speedometer The speedometer shows the vehicle s traveling speed Tachometer The tachometer allows the rider to monitor the engine speed and keep it within the ideal power range NOTICE ECA19660 Do not operate the engine in the tachometer red zone Fuel meter 1 T...

Page 12: ...y This display shows the selected gear The neu tral position is indicated by and by the neutral indicator light Multi function display The multi function display is equipped with the following an odometer ODO two tripmeters TRIP 1 and TRIP 2 a fuel reserve tripmeter TRIP F a clock an instantaneous fuel consumption display km L or L 100 km an average fuel consumption display AVE_ _ _ km L or AVE_ _...

Page 13: ...ueling and travel ing 5 km 3 mi Clock The clock uses a 12 hour time system To set the clock 1 Push the SELECT button to change the dis play to the clock 2 Push the SELECT button until the hour dig its start flashing 3 Use the RESET button to set the hours 4 Push the SELECT button and the minute digits start flashing 5 Use the RESET button to set the minutes 6 Push the SELECT button to confirm the ...

Page 14: ...RESET button until it resets After resetting _ _ _ is shown until the vehicle has traveled some distance Average speed display This display shows the vehicle s average travel ing speed since it was last reset To reset the average speed display push the RESET button until it is reset Backlight setting mode This mode allows you to change the backlight setting To enter the backlight setting mode 1 St...

Page 15: ...e part number starting with YM YU or ACC For others use part number starting with 90890 Tool name Tool No Illustration Reference pages Yamaha diagnostic tool USB 90890 03267 3 4 4 45 4 46 7 10 8 34 9 2 9 20 9 21 Yamaha diagnostic tool A I 90890 03264 3 4 4 45 4 46 7 10 8 34 9 2 9 20 9 21 Thickness gauge 90890 03268 Feeler gauge set YU 26900 9 3 6 3 7 4 13 4 19 5 51 Tappet adjusting tool 90890 0131...

Page 16: ...rk seal driver 90890 01442 Adjustable fork seal driver 36 46 mm YM 01442 4 59 4 59 4 60 4 61 4 61 4 62 Rod puller 90890 01437 Universal damping rod bleeding tool set YM A8703 4 63 Rod puller attachment M10 long 90890 01578 Universal damping rod bleeding tool set YM A8703 4 63 Compression gauge extension 73mm 90890 04082 Compression gauge extension 73mm YM 04082 5 5 Tool name Tool No Illustration R...

Page 17: ... 1215 5 19 5 43 5 69 Slide hammer bolt M8 90890 01085 Slide hammer bolt 8 mm YU 01083 2 5 23 Weight 90890 01084 Weight YU 01083 3 5 23 Valve spring compressor 90890 04200 Valve spring compressor YM 04019 5 27 5 31 Valve spring compressor attachment 90890 04108 Valve spring compressor adapter 22 mm YM 04108 5 27 5 31 Tool name Tool No Illustration Reference pages 90890 03081 YU 33223 YU 01083 3 ...

Page 18: ...5 28 Piston pin puller set 90890 01304 Piston pin puller YU 01304 5 34 Rotor holding tool 90890 04166 Rotor holding tool YM 04166 5 41 5 41 5 42 5 42 Flywheel puller 90890 01362 Heavy duty puller YU 33270 B 5 41 Digital circuit tester CD732 90890 03243 Model 88 Multimeter with tachometer YU A1927 5 46 8 34 8 35 8 36 8 36 8 36 8 37 8 37 8 37 8 38 8 39 8 39 8 40 8 40 8 41 8 41 8 42 8 42 8 43 Tool na...

Page 19: ...separating tool 90890 01135 Crankcase separator YU 01135 B 5 72 Crankshaft installer pot 90890 01274 Installing pot YU 90058 5 73 Crankshaft installer bolt 90890 01275 Bolt YU 90060 5 73 Adapter M12 90890 01278 Adapter 3 YU 90063 5 73 Tool name Tool No Illustration Reference pages YU 90058 YU 90059 ...

Page 20: ...ystem tester kit YU 24460 A 6 4 Radiator cap tester adapter 90890 01352 Pressure tester adapter YU 33984 6 4 Mechanical seal installer 90890 04145 6 8 Middle driven shaft bearing driver 90890 04058 Middle drive bearing installer 40 50 mm YM 04058 6 8 Tool name Tool No Illustration Reference pages YM 91044 YU 24460 A YU 33984 ø10 ø30 ...

Page 21: ...66 Pressure gauge 90890 03153 Pressure gauge YU 03153 7 6 Fuel pressure adapter 6 3mm 90890 03227 7 6 Ignition checker 90890 06754 Oppama pet 4000 spark checker YM 34487 8 38 Test harness lean angle sensor 1PA 3P 90890 03237 Test harness lean angle sensor 1PA 3P YU 03237 8 39 Tool name Tool No Illustration Reference pages ...

Page 22: ...SPECIAL TOOLS 1 13 TIP YDT sub harness 6P 90890 03266 If you already have Yamaha diagnostic tool A I 90890 03262 YDT sub harness 6P 90890 03266 is separately required ...

Page 23: ...S GENERAL SPECIFICATIONS 2 1 ENGINE SPECIFICATIONS 2 2 CHASSIS SPECIFICATIONS 2 6 ELECTRICAL SPECIFICATIONS 2 8 TIGHTENING TORQUES 2 10 ENGINE TIGHTENING TORQUES 2 10 CHASSIS TIGHTENING TORQUES 2 11 CABLE ROUTING 2 13 ...

Reviews: