Yamaha FZ 25 2021 Manual

FORWARD
This supplementary service manual has been prepared to introduce new service and data for the
FZ 25 & FZS 25 (FZN250-A & FZN250D-A) BS-VI 2021 For complete information procedures it is
necessary to use this supplementary service manual together with the following manual.
FZN250 2017 SERVICE MANUAL: B97-F8197-E0
FZ 25 & FZS 25 (FZN250-A & FZN250D-A) BS-VI 2021
SUPPLEMENTARY SERVICE MANUAL
©2021 by India Yamaha Motor Pvt. Ltd. First edition,
July 2020
All rights reserved.
Any reproduction or unauthorized use without the
written permission of
India Yamaha Motor Pvt. Ltd.
is expressly prohibited.
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EAS20071
IMPORTANT
This manual was produced by the India Yamaha Motor Pvt. Ltd. primarily for use by Yamaha deal-
ers and their qualified mechanics. It is not possible to include all the knowledge of a mechanic in
one manual. Therefore, anyone 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. Repair and maintenance work attempted by anyone without this knowledge is likely to
render the vehicle unsafe and unfit for use.
India Yamaha Motor Pvt. Ltd. is continually striving to improve all of its models. Modifications and
significant changes in specifications or procedures will be forwarded to all authorized Yamaha deal-
ers and will appear in future editions of this manual where applicable.
TIP
_
Designs and specifications are subject to change without notice.
EAS20081
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 per-
sonal injury 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
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HOW TO USE THIS MANUAL
This manual is intended as a handy, easy-to-read reference book for the mechanic. Comprehensive
explanations of all installation, removal, disassembly, assembly, repair and check procedures are
laid out with the individual steps in sequential order.
●The manual is divided into chapters and each chapter is divided into sections. The current sec-
tion title “1” is shown at the top of each page.
●Sub-section titles “2” appear in smaller print than the section title.
●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 dis-
assembly 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 jobs, names
of parts, notes in jobs, etc.
●Jobs “7” requiring more information (such as special tools and technical data) are described
sequentially.
1
7
3
5
4
6
2
G088877
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EAS20101
SYMBOLS
The following symbols are used in this manual for easier understanding.
TIP
The following symbols are not relevant to every vehicle.
SYMBOL DEFINTION SYMBOL DEFINTION
Serviceable with engine mounted Molybdenum disulfide oil
Filling fluid Brake fluid
Lubricant Wheel bearing grease
Special tool Lithium-soap-based grease
Tightening torque Molybdenum disulfide grease
Wear limit, clearance Silicone grease
Engine speed Apply locking agent (LOCTITE®).
Electrical data Replace the part with a new one.
Engine oil
M
BF
B
LS
T
R
.
.
M
S
LT
E
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TABLE OF CONTENTS
GENERAL INFORMATION 1
SPECIFICATIONS2
PERIODIC CHECKS AND
ADJUSTMENTS3
CHASSIS 4
ENGINE 5
ELECTRICAL SYSTEM 6
TROUBLESHOOTING 7
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B9X-F8197-E0.book Page 6 Thursday, July 16, 2020 2:28 PM

GEN
INFO
CHAPTER 1
GENERAL INFORMATION
FEATURES......................................................................................................1-1
OUTLINE OF THE ABS............................................................................. 1-1
ABS COMPONENT FUNCTIONS .............................................................1-5
ABS OPERATION ...................................................................................1-10
ABS WARNING LIGHT AND OPERATION.............................................1-13
INDICATOR LIGHTS AND WARNING LIGHT ........................................1-15
MULTI-FUNCTION DISPLAY..................................................................1-15
HANDLEBAR SWITCHES.......................................................................1-18
SIDESTAND ............................................................................................1-18
SPECIAL TOOLS..........................................................................................1-19
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GEN
INFO
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1-1
GEN
INFO
FEATURES
GENERAL INFORMATION
EAS20008
FEATURES
FEATURES
EAS30683
OUTLINE OF THE ABS
1. The Yamaha ABS (anti-lock brake system) features an electronic control system, which acts on the
front and rear brakes independently.
2. The ABS features a compact and lightweight design to help maintain the basic maneuverability of
the vehicle.
3. The hydraulic unit assembly, which is the main component of the ABS, is centrally located on the
vehicle to increase mass centralization.
ABS layout
1. ABS test coupler
2. ABS control unit fuse
3. ABS solenoid fuse
4. ABS motor fuse
5. ABS warning light
6. Front wheel sensor rotor
7. Front wheel sensor
8. Hydraulic unit assembly
9. Rear wheel sensor rotor
10.Rear wheel sensor
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