Yamaha XV125S User Manual

OWNER’S MANUAL

XV125S

5AJ-28199-E3

Welcome to the Yamaha world of motorcycling!

INTRODUCTION

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As the owner of a XV125S, 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 XV125S’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 others 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 contact your Yamaha
dealer.

The Yamaha team wishes you many safe and pleasant rides. So, remember to put safety first!

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IMPORTANT MANUAL INFORMATION

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

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NOTE:

NOTE:

8 This manual should be considered a permanent part of this motorcycle and should

8 Yamaha continually seeks advancements in product design and quality. Therefore,

The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!

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.

A CAUTION indicates special precautions that must be taken to avoid damage to
the motorcycle.

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

remain with it even if the motorcycle is subsequently sold.

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.

IMPORTANT MANUAL INFORMATION

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PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING THIS
MOTORCYCLE.

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XV125S

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OWNER’S MANUAL

©1999 by Yamaha Motor Co., Ltd.

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1st Edition, June 1999

All rights reserved. Any reprinting or

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unauthorized use without the written

permission of Yamaha Motor Co., Ltd.

is expressly prohibited.

Printed in Japan.

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TABLE OF CONTENTS

GIVE SAFETY THE RIGHT OF WAY ..................1-1

1

DESCRIPTION .....................................................2-1

2

Left view............................................................2-1

Right view.........................................................2-2

Controls/Instruments .......................................2-3

INSTRUMENT AND CONTROL

3

FUNCTIONS........................................................3-1

Main switch ......................................................3-1

Indicator lights..................................................3-1

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 ...........................................................3-7

Starter (choke) “1”.........................................3-8

Steering lock.....................................................3-8

Seat ...................................................................3-9

Helmet holder...................................................3-9

Rear shock absorber adjustment..................3-10

Sidestand........................................................3-10

Sidestand/clutch switch operation check.....3-11

PRE-OPERATION CHECKS.................................4-1

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Pre-operation check list ...................................4-1

OPERATION AND IMPORTANT RIDING

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POINTS................................................................5-1

Starting the engine ..........................................5-1

Starting a warm engine...................................5-3

Shifting..............................................................5-4

Recommended shift point

(for Switzerland only) ......................................5-4

Tips for reducing fuel consumption ...............5-5

Engine break-in ................................................5-5

Parking ..............................................................5-6

PERIODIC MAINTENANCE AND MINOR

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REPAIR ................................................................6-1

Tool kit ..............................................................6-1

Periodic maintenance and lubrication............6-3

Panel removal and installation .......................6-6

Panel A..............................................................6-6

Panel B ..............................................................6-7

Spark plugs.......................................................6-8

Engine oil..........................................................6-9

Air filter ...........................................................6-12

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TABLE OF CONTENTS

Carburetor adjustment ..................................6-15

Idle speed adjustment ...................................6-15

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Throttle cable free play adjustment..............6-16

Valve clearance adjustment ..........................6-16

Tires.................................................................6-17

Wheels ............................................................6-19

Clutch lever free play adjustment.................6-19

Front brake lever free play adjustment ........6-20

Rear brake pedal height and free play

adjustment......................................................6-21

Brake light switch adjustment.......................6-22

Checking the front brake pads and rear brake

shoes...............................................................6-22

Inspecting the brake fluid level.....................6-23

Brake fluid replacement.................................6-24

Drive chain slack check..................................6-24

Drive chain slack adjustment ........................6-25

Drive chain lubrication...................................6-26

Cable inspection and lubrication ..................6-27

Throttle cable and grip lubrication ...............6-27

Brake and shift pedal lubrication..................6-28

Brake and clutch lever lubrication ................6-28

Sidestand lubrication.....................................6-28

Front fork inspection......................................6-29

Steering inspection........................................6-29

Wheel bearings ..............................................6-30

Battery.............................................................6-30

Fuse replacement...........................................6-32

Headlight bulb replacement..........................6-33

Turn signal light bulb replacement ..............6-34

Taillight bulb replacement ............................6-35

Supporting the motorcycle ...........................6-36

Front wheel removal......................................6-36

Front wheel installation.................................6-37

Rear wheel removal.......................................6-38

Rear wheel installation ..................................6-39

Troubleshooting.............................................6-40

Troubleshooting chart ...................................6-41

MOTORCYCLE CARE AND STORAGE ..............7-1

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Care ...................................................................7-1

Storage..............................................................7-4

SPECIFICATIONS................................................8-1

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How to use the conversion table ....................8-5

CONSUMER INFORMATION .............................9-1

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Identification number records.........................9-1

Key identification number ...............................9-1

Vehicle identification number .........................9-1

Model label.......................................................9-2

Q GIVE SAFETY THE RIGHT OF WAY

Motorcycles are fascinating vehicles, which can give you an unsurpassed feeling of power and
freedom. However, they also impose certain limits, which you must accept; even the best

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motorcycle does not ignore the laws of physics.

Regular care and maintenance are essential for preserving your motorcycle’s value and operat­ing condition. Moreover, what is true for the motorcycle is also true for the rider: good perfor­mance depends on being in good shape. Riding under the influence of medication, drugs and
alcohol is, of course, out of the question. Motorcycle riders - more than car drivers - must
always be at their mental and physical best. Under the influence of even small amounts of
alcohol, there is a tendency to take dangerous risks.

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Protective clothing is as essential for the motorcycle rider as seat belts are for car drivers and
passengers. Always wear a complete motorcycle suit (whether made of leather or tear-resistant

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synthetic materials with protectors), sturdy boots, motorcycle gloves and a properly fitting hel­met. Optimum protective wear, however, should not encourage carelessness. Though full-cov­erage helmets and suits, in particular, create an illusion of total safety and protection, motorcy-

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clists will always be vulnerable. Riders who lack critical self-control run the risk of going too
fast and are apt to take chances. This is even more dangerous in wet weather. The good motor-

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cyclist rides safely, predictably and defensively - avoiding all dangers, including those caused
by others.

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Enjoy your ride!

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DESCRIPTION

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Left view

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1. Headlight (page 6-33)

2. Steering lock (page 3-8)

3. Fuel cock (page 3-7)

4. Main switch (page 3-1)

5. Fuses (page 6-32)

6. Helmet holder (page 3-9)

7. Rear shock absorber spring preload
adjusting ring (page 3-10)

8. Shift pedal (page 3-4)

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Right view

DESCRIPTION

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9. Battery (page 6-30)

10. Air filter (page 6-12)

11. Rear brake pedal (page 3-5, 6-21)

12. Oil filter (page 6-9)

13. Tool kit (page 6-1)

14. Rear shock absorber spring preload
adjusting ring (page 3-10)

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DESCRIPTION

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Controls/Instruments

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15. Clutch lever (page 3-4, 6-19)

16. Left handlebar switches (page 3-2)

17. Speedometer (page 3-2)

18. Right handlebar switches (page 3-3)

19. Front brake lever (page 3-4, 6-20)

20. Throttle grip (page 6-16)

21. Fuel tank cap (page 3-5)

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ON

OFF

P

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Main switch

The main switch controls the igni­tion and lighting systems. Its oper­ation is described below.

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ON

Electrical circuits are switched on.
The engine can be started. The key
cannot be removed in this position.

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OFF

All electrical circuits are switched
off. The key can be removed in this
position.

INSTRUMENT AND CONTROL FUNCTIONS

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P (Parking)

The taillight and auxiliary light
come on but all other circuits are
off. With the key at “OFF”, push it
into the main switch, turn it coun­terclockwise to “P”, and remove it.
To cancel the parking, turn the key
clockwise.

1. High beam indicator light “&”

2. Neutral indicator light “N”

3. Turn indicator light “5”

Indicator lights

High beam indicator light “&”

This indicator comes on when the
headlight high beam is used.

Neutral indicator light “N”

This indicator comes on when the
transmission is in neutral.

Turn indicator light “5”

This indicator flashes when the
turn switch is moved to the left or
right.

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3-1

INSTRUMENT AND CONTROL FUNCTIONS

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NOTE:

(for German model equipped with

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speed limiter only)
This motorcycle is equipped with a
speed limiter which prevents it
from exceeding a top speed of 80
km/h.

1. Odometer

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2. Trip odometer

3. Reset knob

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Speedometer

The speedometer shows riding

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speed. This speedometer is
equipped with an odometer and
trip odometer. The trip odometer

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can be reset to “0” with the reset
knob. Use the trip odometer to

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estimate how far you can ride on a
tank of fuel. This information will

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enable you to plan fuel stops in the
future.

1. Pass switch “&”

2. Dimmer switch

3. Turn signal switch

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4. Horn switch “*”

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Handlebar switches

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Pass switch “&“

Press the switch to operate the
passing light.

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Dimmer switch

Turn the switch to “&” for the
high beam and to “%” for the low
beam.

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INSTRUMENT AND CONTROL FUNCTIONS

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Turn signal switch

To signal a right-hand turn, push
the switch to “6”. To signal a left­hand turn, push the switch to
“4”. Once the switch is released
it will return to the center position.
To cancel the signal, push the
switch in after it has returned to
the center position.

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Horn switch “*”

Press the switch to sound the horn.

1. Engine stop switch

2. Lights switch

3. Start switch “$”

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Lights switch

Turning the light switch to “'”,
turns on the auxiliary light, meter
lights and taillight. Turning the
light switch to “:” turns the head-
light on also.

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Engine stop switch

The engine stop switch is a safety
device for use in an emergency
such as when the motorcycle over­turns or if trouble occurs in the
throttle system. Turn the switch to
“#” to start the engine.
In case of emergency, turn the
switch to “$” to stop the engine.

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Start switch “,“

The starter motor cranks the
engine when pushing the start
switch.

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See starting instructions prior to
starting the engine.

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3-3

INSTRUMENT AND CONTROL FUNCTIONS

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N

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Clutch lever

The clutch lever is located on the

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left handlebar, and the ignition cir­cuit cut-off system is incorporated

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in the clutch lever holder. Pull the
clutch lever to the handlebar to dis-

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engage the clutch, and release the
lever to engage the clutch. The

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lever should be pulled rapidly and
released slowly for smooth clutch

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operation. (Refer to the engine
starting procedures for a descrip­tion of the ignition circuit cut-off
system.)

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N. Neutral

1. Shift pedal

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Shift pedal

This motorcycle is equipped with a
constant-mesh 5-speed transmis­sion.
The shift pedal is located on the
left side of the engine and is used
in combination with the clutch
when shifting.

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Front brake lever

The front brake lever is located on
the right handlebar. Pull it toward
the handlebar to apply the front
brake.

INSTRUMENT AND CONTROL FUNCTIONS

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Rear brake pedal

The rear brake pedal is on the right
side of the motorcycle. Press down
on the brake pedal to apply the
rear brake.

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1. Open

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Fuel tank cap

To open

Insert the key and turn it 1/4 turn
clockwise. The lock will be released
and the cap can be opened.

To close

Push the tank cap into position
with the key inserted. To remove
the key, turn it counterclockwise to
the original position.

NOTE:

This tank cap cannot be closed
unless the key is in the lock. The
key cannot be removed if the cap is
not locked properly.

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Be sure the cap is properly
installed and locked in place
before riding the motorcycle.

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INSTRUMENT AND CONTROL FUNCTIONS

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1. Filler tube

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2. Fuel level

Fuel

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Make sure there is sufficient fuel in
the tank. Fill the fuel tank to the

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bottom of the filler tube as shown
in the illustration.

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Do not overfill the fuel tank. Avoid

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spilling fuel on the hot engine. Do
not fill the fuel tank above the bot-

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tom of the filler tube or it may
overflow when the fuel heats up
later and expands.

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Always wipe off spilled fuel imme­diately with a dry and clean soft
cloth. Fuel may deteriorate painted
surfaces or plastic parts.

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Recommended fuel:

Regular unleaded gasoline
with a research octane
number of 91 or higher.

Fuel tank capacity:

Total:

9.5 L

Reserve:

2.6 L

NOTE:

If knocking or pinging occurs, use a
different brand of gasoline or high­er octane grade.

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INSTRUMENT AND CONTROL FUNCTIONS

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ON RES

1. Arrow mark pointing to “ON”

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Fuel cock

The negative pressure fuel cock
supplies fuel from the tank to the
carburetor while filtering it also.
The fuel cock has the following
three positions:

ON

With the lever in this position, fuel
flows if the engine is running, but
stops if the engine is not running.

1. Arrow mark pointing to “RES”

RES

This indicates reserve. If you run
out of fuel while riding, move the
lever to “PRI”, start the engine,
then move the lever to “RES”. FILL
THE TANK AT THE FIRST OPPOR­TUNITY. BE SURE TO MOVE THE
LEVER TO “ON” AFTER REFUEL­ING.

NOTE:

The fuel cock operates on vacuum
from the engine when set at “ON”
or “RES”. If the line connecting the
cock to the carburetor intake mani-

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fold is not connected or has a leak,
the cock will not function properly.

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INSTRUMENT AND CONTROL FUNCTIONS

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PRI

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1. Arrow mark pointing to “PRI”

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PRI

This indicates prime. With the lever

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in this position, fuel flows whether
the engine is running or not. If the

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fuel tank is completely empty, refill
the tank and move the lever to

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“PRI” to prime the carburetor.
Move the lever to “ON” after start-

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ing the engine.

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a

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b

1. Starter (choke) “1”

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Starter (choke) “1”

Starting a cold engine requires a
richer air-fuel mixture. A separate
starter circuit supplies this mixture.
Move in direction a to turn on the
starter (choke).
Move in direction b to turn off the
starter (choke).

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1. Steering lock

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Steering lock

To lock the steering

Turn the handlebars all the way to
the right and open the steering
lock cover.
Insert the key and turn it 1/8 turn
counterclockwise. Then, push the
key in while turning the handlebars
slightly to the left and turn the key
1/8 turn clockwise.
Check that the steering is locked,
remove the key and close the lock
cover.

To unlock the steering

Insert the key, push it in and turn it
1/8 turn counterclockwise so that it
moves out. Then, release and
remove the key.

INSTRUMENT AND CONTROL FUNCTIONS

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1. Bolt (×2)

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Seat

To remove

1. Remove panels A and B. (See
page 6-6 for panel removal
and installation procedures.)

2. Remove the rider seat bolts
and lift the seat upward.

1. Projection

2. Seat holder

To install

1. Insert the projection on the
front of the rider seat into the
seat holder, then tighten the
seat bolts.

2. Install the panels.

NOTE:

Make sure that the seat is securely
fitted.

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1. Helmet holder

2. Open

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Helmet holder

To open the helmet holder, insert
the key in the lock and turn it as
shown. To lock the helmet holder,
replace the holder in its original
position.

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Never ride with a helmet in the
helmet holder. The helmet may hit
objects, causing loss of control
and possibly an accident.

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INSTRUMENT AND CONTROL FUNCTIONS

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b

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1. Position indicator

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Rear shock absorber
adjustment

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Each shock absorber is equipped
with a spring preload adjusting

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ring. Adjust spring preload as fol­lows.

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Turn the adjusting ring in direction
a to increase spring preload and

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in direction b to decrease spring
preload. Make sure that the appro-

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priate notch in the adjusting ring is
aligned with the position indicator
on the rear shock absorber.

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Stan-

Adjusting
position

Soft

dard

12345

Hard

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Always adjust each shock
absorber to the same setting.
Uneven adjustment can cause
poor handling and loss of stability.

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Sidestand

This model is equipped with an
ignition circuit cut-off system. The
motorcycle must not be ridden
when the sidestand is down. The
sidestand is located on the left side
of the frame. (Refer to page 5-1 for
an explanation of this system.)

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INSTRUMENT AND CONTROL FUNCTIONS

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This motorcycle must not be oper­ated with the sidestand in the
down position. If the stand is not
properly retracted, it could contact
the ground and distract the opera­tor, resulting in a possible loss of
control. Yamaha has designed into
this motorcycle a lockout system
to assist the operator in fulfilling
the responsibility of retracting the
sidestand. Please check carefully
the operating instructions listed
below and if there is any indication
of a malfunction, return the motor­cycle to a Yamaha dealer immedi­ately for repair.

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Sidestand/clutch switch
operation check

Check the operation of the side­stand switch and clutch switch
against the information below.

TURN THE MAIN SWITCH TO “ON”

AND THE ENGINE STOP SWITCH TO
“#”.

TRANSMISSION IS IN GEAR AND

SIDESTAND IS UP.

PULL IN CLUTCH LEVER AND

PUSH THE START SWITCH.

ENGINE WILL START.

CLUTCH SWITCH IS OK.

SIDESTAND IS DOWN.

ENGINE WILL STALL.

SIDESTAND SWITCH IS OK.

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If improper operation is noted,
consult a Yamaha dealer immedi­ately.

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3-11

PRE-OPERATION CHECKS

Owners are personally responsible for their vehicle’s condition. Your motorcycle’s vital functions can start to
deteriorate quickly and unexpectedly, even if it remains unused (for instance, if it is exposed to the elements).
Any damage, fluid leak or loss of tire pressure could have serious consequences. Therefore, it is very important

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that, in addition to a thorough visual inspection, you check the following points before each ride.

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Front brake

4

Rear brake

Clutch

5

Throttle grip and housing

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Engine oil

Drive chain

7

Wheels and tires

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Control and meter cable

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Brake and shift pedal shafts

Brake and clutch lever pivots

PRE-OPERATION CHECK LIST

ITEM CHECKS PAGE

9 Check operation, free play, fluid level and vehicle for fluid leakage.
9 Fill with DOT 4 (or DOT 3) brake fluid if necessary.

9 Check operation and free play.
9 Adjust if necessary.

9 Check operation and free play.
9 Adjust if necessary.

9 Check for smooth operation.
9 Lubricate.

9 Check oil level.
9 Fill with oil if necessary.

9 Check chain slack and condition.
9 Adjust if necessary.

9 Check tire pressure, wear, damage and spoke tightness.
9 Tighten spokes if necessary.

9 Check for smooth operation.
9 Lubricate if necessary.

9 Check for smooth operation.
9 Lubricate if necessary.

9 Check for smooth operation.
9 Lubricate if necessary.

3-4 ~ 3-5, 6-20 ~ 6-24

3-4, 6-19 ~ 6-20

6-16, 6-27

6-9 ~ 6-12

6-24 ~ 6-27

6-17 ~ 6-19

6-27

6-28

6-28

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4-1

ITEM CHECKS PAGE

Sidestand pivot

Chassis fasteners

Fuel tank

Lights, signals and
switches

Battery

PRE-OPERATION CHECKS

9 Check for smooth operation.
9 Lubricate if necessary.

9 Make sure that all nuts, bolts, and screws are properly tightened.
9 Tighten if necessary.

9 Check fuel level.
9 Fill with fuel if necessary.

9 Check for proper operation. 6-33 ~ 6-35

9 Check fluid level.
9 Fill with distilled water if necessary.

6-28

—

3-5 ~ 3-6

6-30 ~ 6-32

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NOTE:

Pre-operation checks should be made each time the motorcycle is used. Such an inspection can be accom­plished in a very short time; and the added safety it assures is more than worth the time involved.

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If any item in the Pre-Operation Check is not working properly, have it inspected and repaired before operating
the motorcycle.

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OPERATION AND IMPORTANT RIDING POINTS

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8 Before riding this motorcycle,

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become thoroughly familiar
with all operating controls and
their functions. Consult a
Yamaha dealer regarding any
control or function that you do
not thoroughly understand.

8 Never start your engine or let

it run for any length of time in
a closed area. The exhaust
fumes are poisonous and can
cause loss of consciousness
and death within a short time.
Always operate your motorcy­cle in an area with adequate
ventilation.

8 Before starting out, always be

sure the sidestand is up.
Failure to retract the sidestand
completely can result in a seri­ous accident when you try to
turn a corner.

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Starting the engine

NOTE:

This motorcycle is equipped with
an ignition circuit cut-off system.
The engine can be started only
under one of the following condi­tions:

8 The transmission is in neutral.
8 The sidestand is up, the trans-

mission is in gear and the

clutch is disengaged.
The motorcycle must not be ridden
when the sidestand is down.

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Before going through the follow­ing steps, check the function of the
sidestand switch and clutch
switch. (Refer to page 3-11.)

5-1

OPERATION AND IMPORTANT RIDING POINTS

TURN THE MAIN SWITCH TO “ON” AND
THE ENGINE STOP SWITCH TO “#”.

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IF THE TRANSMISSION IS IN NEUTRAL
AND THE SIDESTAND IS DOWN,

PUSH START SWITCH.
THE ENGINE WILL START.

RETRACT THE SIDESTAND AND PUT
THE TRANSMISSION IN GEAR.

IF THE TRANSMISSION IS IN GEAR
AND THE SIDESTAND IS UP,

PULL IN THE CLUTCH LEVER AND
PUSH THE START SWITCH.
THE ENGINE WILL START.

THE MOTORCYCLE CAN BE RIDDEN.THE MOTORCYCLE CAN BE RIDDEN.

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5-2

OPERATION AND IMPORTANT RIDING POINTS

1

1

2

3

1. Arrow mark pointing to “ON”

4

1. Turn the fuel cock to “ON”.

2. Turn the main switch to “ON”

5

and the engine stop switch to
“#”.

6

3. Shift the transmission into
neutral.

7

NOTE:

When the transmission is in neu-

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tral, the neutral indicator light
should be on. If the light does not
come on, ask a Yamaha dealer to

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inspect it.

4. Turn on the starter (choke) and
completely close the throttle
grip.

5. Start the engine by pushing
the start switch.

NOTE:

If the engine fails to start, release
the start switch, wait a few sec­onds, then try again. Each attempt
should be as short as possible to
preserve the battery. Do not crank
the engine more than 10 seconds
on any one attempt.

Starting a warm engine

The starter (choke) is not required
when the engine is warm.

cC

See the “Engine break-in” section
prior to operating the motorcycle
for the first time.

EAU01258

EC000046

6. After starting the engine, move
the starter (choke) to the
halfway position.

NOTE:

For maximum engine life, never
accelerate hard with a cold engine!

7. After warming up the engine,
turn off the starter (choke)
completely.

NOTE:

The engine is warm when it
responds normally to the throttle
with the starter (choke) turned off.

5-3

OPERATION AND IMPORTANT RIDING POINTS

5
4
3
2

1

N

1

N. Neutral

1. Shift pedal

EAU00423

Shifting

The transmission lets you control
the amount of power you have
available at a given speed for start­ing, accelerating, climbing hills,
etc. The use of the shift pedal is
shown in the illustration.
To shift into neutral, depress the
shift pedal repeatedly until it reach­es the end of its travel, then raise
the pedal slightly.

EC000048

cC

8 Do not coast for long periods

with the engine off, and do
not tow the motorcycle a long
distance. Even with gears in
neutral, the transmission is
only properly lubricated when
the engine is running.
Inadequate lubrication may
damage the transmission.

8 Always use the clutch when

changing gears. The engine,
transmission, and driveline are
not designed to withstand the
shock of forced shifting and
can be damaged by shifting
without using the clutch.

EAU02941

Recommended shift points
(for Switzerland only)

The recommended shift points are
shown in the table below.

Acceleration shift point

(km/h)

1st → 2nd 23
2nd → 3rd 36

3rd → 4th 50
4th → 5th 60

NOTE:

When shifting two gears down
from 4th to 2nd, bring your motor­cycle to a speed of 35 km/h.

1

2

3

4

5

6

7

8

9

5-4

OPERATION AND IMPORTANT RIDING POINTS

Tips for reducing fuel
consumption

Your motorcycle’s fuel consump-

1

tion depends to a large extent on
your riding style. The following

2

tips can help reduce fuel consump­tion:

3

8 Warm up the engine before

4

5

6

7

8

9

riding.

8 Turn off the starter (choke) as

soon as possible.

8 Shift up swiftly and avoid high

engine speeds during accelera­tion.

8 Do not double-clutch or rev the

engine while shifting down
and avoid high engine speeds
with no load on the engine.

8 Turn off the engine instead of

letting it idle for an extended
length of time, i.e. in traffic
jams, at traffic lights or rail­road crossings.

EAU00424

EAU00436

Engine break-in

There is never a more important
period in the life of your motorcy­cle than the period between zero
and 1,000 km. For this reason we
ask that you carefully read the fol­lowing material. Because the
engine is brand new, you must not
put an excessive load on it for the
first 1,000 km. The various parts in
the engine wear and polish them­selves to the correct operating
clearances. During this period, pro­longed full throttle operation, or
any condition which might result in
excessive heating of the engine,
must be avoided.

EAU00443

0 ~ 150 km

Avoid operation above 1/3 throttle.
Stop the engine and let it cool for 5
to 10 minutes after every hour of
operation. Vary the speed of the
motorcycle from time to time. Do
not operate it at one set throttle
position.

150 ~ 500 km

Avoid prolonged operation above
1/2 throttle. Rev the motorcycle
freely through the gears, but do
not use full throttle at any time.

500 ~ 1,000 km

Avoid cruising speeds in excess of
3/4 throttle.

EC000052

cC

After 1,000 km of operation, be
sure to replace the engine oil and
oil filter.

5-5

OPERATION AND IMPORTANT RIDING POINTS

1,000 km and beyond

Avoid prolonged full throttle oper­ation. Vary speeds occasionally.

EC000049

cC

If any engine trouble should occur
during the break-in period, consult
a Yamaha dealer immediately.

EAU00460

Parking

When parking the motorcycle, stop
the engine and remove the ignition
key.

EW000058

w

The exhaust system is hot. Park
the motorcycle in a place where
pedestrians or children are not
likely to touch the motorcycle. Do
not park the motorcycle on a slope
or soft ground; the motorcycle
may overturn.

1

2

3

4

5

6

7

8

9

5-6

PERIODIC MAINTENANCE AND MINOR REPAIR

1

EAU00462

Periodic inspection, adjustment
and lubrication will keep your

1

motorcycle in the safest and most
efficient condition possible. Safety
is an obligation of the motorcycle

2

owner. The maintenance and lubri­cation schedule chart should be

3

considered strictly as a guide to
general maintenance and lubrica-

4

tion intervals.
YOU MUST TAKE INTO CONSID-

5

ERATION THAT WEATHER, TER­RAIN, GEOGRAPHICAL LOCA-

6

TIONS, AND A VARIETY OF
INDIVIDUAL USES ALL TEND TO
DEMAND THAT EACH OWNER

7

ALTER THIS TIME SCHEDULE TO
SHORTER INTERVALS TO MATCH

8

THE ENVIRONMENT. The most
important points of motorcycle

9

inspection, adjustment, and lubri­cation are explained in the follow­ing pages.

EAU00464

EW000060

w

If you are not familiar with motor­cycle service, this work should be
done by a Yamaha dealer.

6-1

1. Tool kit

EAU01175

Tool kit

The tool kit is located behind panel
A. (See page 6-6 for panel removal
and installation procedures.) The
tools provided in the owner’s tool
kit are to assist you in the perfor­mance of periodic maintenance.
However, some other tools such as
a torque wrench are also necessary
to perform the maintenance cor­rectly.
The service information included in
this manual is intended to provide
you, the owner, with the necessary
information for completing some
of your own preventive mainte­nance and minor repairs.

NOTE:

If you do not have necessary tools
required during a service opera­tion, take your motorcycle to a
Yamaha dealer for service.

EW000063

w

Modifications to this motorcycle
not approved by Yamaha may
cause loss of performance, and
render it unsafe for use. Consult a
Yamaha dealer before attempting
any changes.

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

3

4

5

6

7

8

6-2

9

PERIODIC MAINTENANCE AND MINOR REPAIR

PERIODIC MAINTENANCE AND LUBRICATION

EAU00473

1

2

3

4

5

6

7

8

9

Every

No. ITEM CHECKS AND MAINTENANCE JOBS

1 * Fuel line

2 Spark plugs

3 * Valves
4 Air filter 9 Clean or replace if necessary. √√

5 * Battery 9 Correct or recharge if necessary. √√

6 Clutch

7 * Front brake

8 * Rear brake

9 * Wheels

10 * Tires

9 Check fuel hoses and vacuum hose for cracks or damage.
9 Replace if necessary.

9 Check condition.
9 Clean, regap or replace if necessary.

9 Check valve clearance.
9 Adjust if necessary.

9 Check electrolyte level and specific gravity.

9 Make sure that the breather hose is properly routed.
9 Check operation.

9 Adjust or replace cable.
9 Check operation, fluid level and vehicle for fluid leakage.

(See NOTE on page 6-5.)

9 Correct accordingly.
9 Replace brake pads if necessary.

9 Check operation.
9 Adjust brake pedal freeplay and replace brake shoes if necessary.

9 Check balance, runout, spoke tightness and for damage.
9 Tighten spokes and rebalance, replace if necessary.”

9 Check tread depth and for damage.
9 Replace if necessary.
9 Check air pressure.
9 Correct if necessary.

INITIAL or or

1,000 km 6 months 12 months

√√√

√√√

√√√

√√√

√√√

6,000 km 12,000 km

(Whichever (Whichever

comes first) comes first)

√√

√√

√√

Every

6-3

PERIODIC MAINTENANCE AND MINOR REPAIR

No. ITEM CHECKS AND MAINTENANCE JOBS

11 * Wheel bearings

12 * Swingarm

13 Drive chain 9

14 * Steering bearings

15 * Chassis fasteners

16 Sidestand

17 * Sidestand switch

18 * Front fork

Rear shock absorber 9 Check operation and shock absorbers for oil leakage.

19 *

assemblies 9 Replace shock absorber assembly if necessary.

20 * Carburetor

9 Check bearing for looseness or damage.
9 Replace if necessary.

9 Check swingarm pivoting point for play.
9 Correct if necessary.
9 Lubricate with molybdenum disulfide grease every 24,000 km or

24 months (whichever comes first).

9 Check chain slack.

Adjust if necessary. Make sure that the rear wheel is properly aligned.

9 Clean and lubricate.
9 Check bearing play and steering for roughness.

9 Correct accordingly.
9 Lubricate with lithium soap base grease every 24,000 km or

24 months (whichever comes first).

9 Make sure that all nuts, bolts and screws are properly tightened.
9 Tighten if necessary.

9 Check operation.
9 Lubricate and repair if necessary.

9 Check operation.
9 Replace if necessary.

9 Check operation and for oil leakage.
9 Correct accordingly.

9 Check engine idling speed and starter operation.
9 Adjust if necessary.

Every

6,000 km 12,000 km

INITIAL or or

1,000 km 6 months 12 months

(Whichever (Whichever

comes first) comes first)

√√

√√

Every 1,000 km and after washing

the motorcycle or riding in the rain

√√

√√

√√

√√√

√√

√√

√√√

Every

1

2

3

4

5

6

7

8

9

6-4

PERIODIC MAINTENANCE AND MINOR REPAIR

Every

No. ITEM CHECKS AND MAINTENANCE JOBS

INITIAL or or

1,000 km 6 months 12 months

1

21 Engine oil 9 Correct if necessary. √√√

2

22

Engine oil filter element

9 Check oil level and vehicle for oil leakage.

9 Change. (Warm engine before draining.)
9 Replace. √√

6,000 km 12,000 km

(Whichever (Whichever

comes first) comes first)

Every

3

* Since these items require special tools, data and technical skills, they should be serviced by a Yamaha dealer.

4

NOTE:

5

8 The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
8 Hydraulic brake system

6

8 When disassembling the master cylinder or caliper, always replace the brake fluid. Check the brake fluid

level regularly and fill as required.

7

8 Replace the oil seals on the inner parts of the master cylinder and caliper every two years.
8 Replace the brake hoses every four years or if cracked or damaged.

8

9

EAU02970

6-5

PERIODIC MAINTENANCE AND MINOR REPAIR

1

1

1

2

3

1. Panel A

EAU01122

Panel removal and
installation

The panels illustrated need to be
removed to perform some of the
maintenance described in this
chapter.
Refer to this section each time a
panel has to be removed or rein­stalled.

1. Panel B

6-6

EAU01156

Panel A

To remove

Pull outward on the rear of the
panel, then slide it forward to
unhook it in the front.

4

5

6

7

8

9

PERIODIC MAINTENANCE AND MINOR REPAIR

3

4

2

1

4

1

2

3

1

2

3

1. Holder (×2)

4

2. Bracket (×2)

3. Grommet

4. Projection

5

To install

Hook the front of the panel on the

6

holders, then push inward on the
rear of the panel.

7

8

9

EAU01156

Panel B

To remove

Pull outward on the rear of the
panel, then slide it forward to
unhook it in the front.

6-7

1. Holder (×2)

2. Grommet

3. Projection

4. Bracket (×2)

To install

Hook the front of the panel on the
holders, then push inward on the
rear of the panel.

1

1. Spark plug cap

1

Spark plugs

Removal

1. Remove the spark plug caps.

EAU03053

PERIODIC MAINTENANCE AND MINOR REPAIR

Inspection

The spark plug is an important engine
component and is easy to inspect.
The condition of the spark plug can
indicate the condition of the engine.
Normally, all spark plugs from the
same engine should have the same
color on the white insulator around
the center electrode. The ideal color

1. Spark plug wrench

2. Use the spark plug wrench in
the tool kit to remove the spark
plugs as shown.

at this point is a medium-to-light tan
color for a motorcycle that is being
ridden normally. If one spark plug
shows a distinctly different color,
there could be something wrong with
the engine.
Do not attempt to diagnose such
problems yourself. Instead, take the
motorcycle to a Yamaha dealer. You
should periodically remove and
inspect the spark plugs because heat
and deposits will cause any spark
plug to slowly break down and erode.
If electrode erosion becomes exces­sive, or if carbon and other deposits
are excessive, you should replace the
spark plug with the specified plug.

1

2

3

4

5

6

7

8

9

6-8

Specified spark plug:

CR6HSA (NGK) or
U20FSR-U (DENSO)

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

3

a

NOTE:

If a torque wrench is not available

1

2

3

when you are installing a spark
plug, a good estimate of the cor­rect torque is 1/4 to 1/2 turn past
finger tight. Have the spark plug
tightened to the specified torque as
soon as possible.

a. Spark plug gap

4

Installation

1. Measure the electrode gap

5

6

7

with a wire thickness gauge
and, if necessary, adjust the
gap to specification.

Spark plug gap:

0.6 ~ 0.7 mm

8

2. Clean the gasket surface. Wipe
off any grime from the

9

threads.

3. Install the spark plug and tight­en it to the specified torque.

Tightening torque:

Spark plug:

12.5 Nm (1.25 m0kg)

4. Install the spark plug caps.

6-9

1. Oil level window

2. Maximum level mark

3. Minimum level mark

EAU01523

Engine oil

Oil level inspection

1. Place the motorcycle on a level
place and hold it in an upright
position. Warm up the engine
for several minutes.

NOTE:

Be sure the motorcycle is posi­tioned straight up when checking
the oil level. A slight tilt toward the
side can result in false readings.

2. With the engine stopped,

1

1

check the oil level through the
level window located at the
lower part of the right side
crankcase cover.

NOTE:

Wait a few minutes until the oil
level settles before checking.

3. The oil level should be
between maximum level and
minimum level marks. If the
level is low, fill engine with
sufficient oil to raise it to the
specified level.

PERIODIC MAINTENANCE AND MINOR REPAIR

1. Oil filler cap

Engine oil and oil filter element
replacement

1. Warm up the engine for a few
minutes.

2. Stop the engine. Place an oil
pan under the engine and
remove the oil filler cap.

1. Engine oil drain plug

3. Remove the drain plug and
drain the oil.

1

2

3

4

5

6

7

8

9

6-10

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

1

7. Install the new oil filter, new O­ring and the oil filter cover.

1

Tighten the oil filter cover
bolts to the specified torque.

2

3

1. Oil filter cover bolt (×3)

4

4. Remove the oil filter cover

5

6

7

8

9

bolts and the oil filter cover.

1. Oil filter

2. O-ring

5. Remove the oil filter and O­ring.

6. Reinstall the drain plug and
tighten it to the specified
torque.

Tightening torque:

Drain plug:

32 Nm (3.2 m·kg)

6-11

Tightening torque:

Oil filter cover bolt:

10 Nm (1.0 m·kg)

NOTE:

Make sure the O-ring is seated
properly.

8. Fill the engine with oil. Install
the oil filler cap and tighten it.

PERIODIC MAINTENANCE AND MINOR REPAIR

1

3

2

Recommended oil:

See page 8-1.

Oil quantity:

Total amount:

1.7 L

Periodic oil change:

1.4 L

With oil filter replacement:

1.6 L

EC000066

cC

8 Do not put in any chemical

additives. Engine oil also lubri­cates the clutch and additives
could cause clutch slippage.

8 Be sure no foreign material

enters the crankcase.

9. Start the engine and warm up
for a few minutes. While
warming up, check for oil leak­age. If oil leakage is found,
stop the engine immediately
and check for the cause.

10. Stop the engine and check the
oil level.

1. Bolt

2. Air filter cover

3. Air filter case

EAU01174*

Air filter

The air filter should be cleaned at
the specified intervals. It should be
cleaned more frequently if you are
riding in unusually wet or dusty
areas.

1

2

3

4

5

6

7

8

9

6-12

1

PERIODIC MAINTENANCE AND MINOR REPAIR

1

1

2

3

1

1. Bolt (×2)

4

1. Remove the bolts and the air

5

6

7

8

9

filter case.

1. Hose (×2)

2. Remove the hoses from the air
filter case.

6-13

1. Screw (×2)

3. Remove the screws and the air
filter cover.

1. Wing nut

1

2

2. Air filter

4. Remove the wing nut and the
air filter.

PERIODIC MAINTENANCE AND MINOR REPAIR

7. Pull the element over its

1

2

1. Foam element

2. Frame

5. Remove the foam element
from its frame and clean it
with solvent. After cleaning,
remove the remaining solvent
by squeezing it.

6. Apply recommended oil to the
entire surface of the element
and squeeze out the excess oil.
It should be wet but not drip­ping.

Recommended oil:

Engine oil

frame, install the air filter in
the case and tighten the wing
nut.

8. Install the air filter cover.

9. Connect the hoses and install
the air filter case.

EC000082

cC

8 Make sure the air filter is prop-

erly seated in the air filter
case.

8 The engine should never be

run without the air filter
installed. Excessive piston
and/or cylinder wear may
result.

1

2

3

4

5

6

7

8

9

6-14

1

a

b

PERIODIC MAINTENANCE AND MINOR REPAIR

Carburetor adjustment

The carburetor is a vital part of the
engine and requires very sophisti-

1

cated adjustment. Most adjust­ments should be left to a Yamaha

2

dealer who has the professional
knowledge and experience to do

3

so. However, the following may be
serviced by the owner as part of

4

routine maintenance.

cC

5

The carburetor was set at the
Yamaha factory after many tests. If

6

the settings are changed, poor
engine performance and damage

7

may result.

8

9

EAU00629

EC000094

EAU01168

Idle speed adjustment

NOTE:

A diagnostic tachometer must be
used for this procedure.

1. Attach the tachometer. Start
the engine and warm it up for
a few minutes at approximate­ly 1,000 to 2,000 r/min.
Occasionally rev the engine to
4,000 to 5,000 r/min. The
engine is warm when it quickly
responds to the throttle.

6-15

1. Throttle stop screw

2. Set the idle to the specified
engine speed by adjusting the
throttle stop screw. Turn the
screw in direction a to
increase engine speed and in
direction b to decrease engine
speed.

Standard idle speed:

1,300 ~ 1,400 r/min

NOTE:

If the specified idle speed cannot
be obtained by performing the
above adjustment, consult a
Yamaha dealer.

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

a

b

c

1. Adjusting nut

2. Locknut
c. Free play

EAU00634

Throttle cable free play
adjustment

NOTE:

Before checking the throttle cable
free play, the engine idling speed
should be adjusted.

Adjust the throttle cable by turning
the adjusting nut so that specified
free play at the throttle grip is
obtained.

Free play:

3 ~ 5 mm

1. Loosen the locknut.

2. Turn the adjusting nut in direc-

tion a to increase free play
and in direction b to decrease
free play.

3. Tighten the locknut.

EAU00637

Valve clearance adjustment

The correct valve clearance
changes with use, resulting in
improper fuel/air supply or engine
noise. To prevent this, the valve
clearance must be adjusted regu­larly. This adjustment however,
should be left to a professional
Yamaha service technician.

1

2

3

4

5

6

7

8

9

6-16

PERIODIC MAINTENANCE AND MINOR REPAIR

Tires

To ensure maximum performance,
long service, and safe operation,

1

note the following:

2

Tire air pressure

Always check and adjust the tire

3

pressure before operating the
motorcycle.

4

w

5

Tire inflation pressure should be
checked and adjusted when the
temperature of the tire equals the

6

ambient air temperature. Tire infla­tion pressure must be adjusted

7

according to total weight of cargo,
rider, passenger, and accessories

8

(fairing, saddlebags, etc. if
approved for this model), and vehi-

9

cle speed.

EAU00647

EW000082

Maximum load* 183 kg

Cold tire pressure Front Rear

Up to 90 kg (1.75 kg/cm

90 kg load ~
Maximum load*

* Load is the total weight of cargo, rider, passen-

ger, and accessories.

175 kPa 200 kPa

1.75 bar) 2.00 bar)

200 kPa 225 kPa

(2.0 kg/cm

2.00 bar) 2.25 bar)

2

, (2.0 kg/cm2,

2

, (2.25 kg/cm2,

EW000083

w

Proper loading of your motorcycle
is important for several character­istics of your motorcycle, such as
handling, braking, performance
and safety. Do not carry loosely
packed items that can shift.
Securely pack your heaviest items
close to the center of the motorcy­cle, and distribute the weight
evenly from side to side. Properly
adjust the suspension for your
load, and check the condition and
pressure of your tires. NEVER
OVERLOAD YOUR MOTORCYCLE.
Make sure the total weight of the
cargo, rider, passenger, and acces­sories (fairing, saddlebags, etc. if
approved for this model) does not
exceed the maximum load of the
motorcycle. Operation of an over­loaded motorcycle could cause tire
damage, an accident, or even
injury.

6-17

PERIODIC MAINTENANCE AND MINOR REPAIR

1

a

1. Side wall
a. Tread depth

Tire inspection

Always check the tires before oper­ating the motorcycle. If center
tread depth reaches the limit as
shown, if the tire has a nail or glass
fragments in it, or if the side wall is
cracked, contact a Yamaha dealer
immediately and have the tire
replaced.

FRONT

Manufacturer Size Type

CHENG SHIN 3.00-18 47P C-916

REAR

Manufacturer Size Type

CHENG SHIN

Minimum tire tread
depth (front and rear)

130/90-15M/C 66P

C-915

1.6 mm

NOTE:

These limits may be different by
regulation from country to country.
If so, conform to the limits speci­fied by the regulations of your own
country.

EAU00681

w

8 Operating the motorcycle with

excessively worn tires
decrease riding stability and
can lead to loss of control.
Have excessively worn tires
replaced by a Yamaha dealer
immediately. Brakes, tires, and
related wheel parts replace­ment should be left to a
Yamaha Service Technician.

8 Patching a punctured tube is

not recommended. If it is
absolutely necessary to do so,
use great care and replace the
tube as soon as possible with
a good quality replacement.

1

2

3

4

5

6

7

8

9

6-18

1

2

b

a

c

PERIODIC MAINTENANCE AND MINOR REPAIR

Wheels

To ensure maximum performance,
long service, and safe operation,

1

note the following:

8 Always inspect the wheels

2

3

4

5

6

7

8

9

before a ride. Check for cracks,
bends or warpage of the
wheel. Be sure the spokes are
tight and undamaged. If any
abnormal condition exists in a
wheel, consult a Yamaha deal­er. Do not attempt even small
repairs to the wheel. If a wheel
is deformed or cracked, it must
be replaced.

8 Tires and wheels should be

balanced whenever either one
is changed or replaced. Failure
to have a wheel balanced can
result in poor performance,
adverse handling characteris­tics, and shortened tire life.

EAU00685

8 Ride at moderate speeds after

changing a tire since the tire
surface must first be broken in
for it to develop its optimal
characteristics.

1. Locknut

2. Adjusting bolt
c. Free play

EAU00694

Clutch lever free play
adjustment

The clutch lever free play should
be adjusted to 10 ~ 15 mm.

1. Loosen the locknut at the
clutch lever.

2. Turn the adjusting bolt at the
clutch lever in direction a to
increase free play or in direc­tion b to decrease free play.

3. Tighten the locknut at the
clutch lever.

If the specified free play cannot be
obtained, proceed with the follow­ing steps.

6-19

1

2

a

b

1. Locknut

1

2

a

b

c

2. Adjusting nut

4. Loosen the locknut at the
clutch lever.

5. Turn the adjusting bolt at the
clutch lever in direction a to
loosen the cable.

6. Loosen the locknut at the
crankcase side.

7. Turn the adjusting nut at the
crankcase in direction a to
increase free play or in direc­tion b to decrease free play.

8. Tighten the locknut at the
crankcase and the clutch lever.

PERIODIC MAINTENANCE AND MINOR REPAIR

EW000099

w

8 Check the brake lever free

play. Be sure the brake is
working properly.

8 A soft or spongy feeling in the

brake lever can indicate the
presence of air in the brake

1. Locknut

2. Adjusting bolt
c. Free play

EAU00696

Front brake lever free play
adjustment

The free play at the front brake
lever should be 2 ~ 5 mm.

1. Loosen the locknut.

2. Turn the adjusting bolt in

direction a to increase free
play or in direction b to
decrease free play.

3. After adjusting, tighten the
locknut.

system. This air must be
removed by bleeding the
brake system before the
motorcycle is operated. Air in
the system will cause greatly
diminished braking capability
and can result in loss of con­trol and an accident. Have a
Yamaha dealer inspect and
bleed the system if necessary.

1

2

3

4

5

6

7

8

9

6-20

1

a

b

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

b

a

1

a

2

3

4

5

1

1. Footrest
a. Pedal height: 60 mm
b. Free play

Rear brake pedal height and
free play adjustment

6

w

It is advisable to have a Yamaha

7

dealer make this adjustment.

8

Pedal height

The brake pedal should be posi-

9

tioned so that its top end is
approximately 60 mm above the
top of the footrest.

b

EAU01199

EW000104

1. Locknut

2. Adjusting bolt

1. Loosen the locknut.

2. Turn the adjusting bolt in

direction a to raise pedal
height or in direction b to
lower pedal height.

3. Tighten the locknut.

EW000108

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After adjusting the pedal height,
adjust brake pedal free play.

1. Adjusting nut

Free play

The rear brake pedal free play
should be adjusted to 20 ~ 30 mm
at the brake pedal end. Turn the
adjusting nut on the brake rod in
direction a to increase free play or
in direction b to decrease free
play.

6-21

EW000106

1

2

a

b

1

w

8 Brake pedal free play should

be checked whenever the
chain is adjusted or the rear
wheel is removed and then
reinstalled.

8 Check the operation of the

brake light after adjusting the
rear brake.

8 If it is impossible to make

proper adjustment, consult a
Yamaha dealer.

PERIODIC MAINTENANCE AND MINOR REPAIR

1. Brake light switch

2. Adjusting nut

EAU00713

Brake light switch
adjustment

The rear brake light switch is acti­vated by the brake pedal and is
properly adjusted when the brake
light comes on just before braking
takes effect. To adjust the rear
brake light switch, hold the switch
body so it does not rotate while
turning the adjusting nut.
Turn the adjusting nut in direction
a to make the brake light come on
earlier.
Turn the adjusting nut in direction
b to make the brake light come on
later.

6-22

1. Indicator groove

EAU00720

Checking the front brake
pads and rear brake shoes

EAU00725

Front brake

A wear indicator groove is provid­ed on each brake pad. This indica­tor allows checking of brake pad
wear without disassembling the
brake. Inspect the groove. If the
groove has almost disappeared,
ask a Yamaha dealer to replace the
pads.

1

2

3

4

5

6

7

8

9

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

1

2

3

1

8 Use only the designated quali-

ty brake fluid. Otherwise, the
rubber seals may deteriorate,
causing leakage and poor
brake performance.

Recommended brake fluid:

DOT 4

1. Wear limit line

4

2. Wear indicator

Rear brake

5

Apply the brake and inspect the
wear indicator.

6

If the indicator reaches the wear
limit line, ask a Yamaha dealer to

7

replace the shoes.

8

9

EAU00727

1. Minimum level mark

EAU00732

Inspecting the brake fluid
level

Insufficient brake fluid may let air
enter the brake system, possibly
causing the brakes to become inef­fective.
Before riding, check that the brake
fluid is above the minimum level
and fill when necessary.
Observe these precautions:

8 When checking the fluid level,

make sure the top of the mas­ter cylinder is level by turning
the handlebars.

6-23

NOTE:

If DOT 4 is not available, DOT 3 can
be used.

8 Refill with the same type of

brake fluid. Mixing fluids may
result in a harmful chemical
reaction and lead to poor
brake performance.

8 Be careful that water does not

enter the master cylinder when
refilling. Water will significant­ly lower the boiling point of
the fluid and may result in
vapor lock.

PERIODIC MAINTENANCE AND MINOR REPAIR

a

8 Brake fluid may deteriorate

painted surfaces or plastic
parts. Always clean up spilled
fluid immediately.

8 Have a Yamaha dealer check

the cause if the brake fluid
level goes down.

EAU00742

Brake fluid replacement

The brake fluid should be replaced
only by trained Yamaha service
personnel. Have the Yamaha deal­er replace the following compo­nents during periodic maintenance
or when they are damaged or leak­ing:

8 oil seals (every two years)
8 brake hoses (every four years)

6-24

a. Chain slack

EAU00744

Drive chain slack check

NOTE:

Spin the wheel several times and
find the tightest position of the
chain. Check and/or adjust the
chain slack while it’s in this tightest
position.

To check the chain slack the motor­cycle must be held straight up with
both wheels on the ground and
without rider. Check the slack at
the position shown in the illustra­tion. Normal slack is approximately
30 ~ 40 mm. If the slack exceeds
40 mm, adjust.

1

2

3

4

5

6

7

8

9

PERIODIC MAINTENANCE AND MINOR REPAIR

1

1

2

1

2

3

1. Rear brake pedal free play adjusting nut

4

Drive chain slack adjustment

1. Loosen the rear brake pedal

5

free play adjusting nut.

6

7

8

9

EAU00750

5

1. Cotter pin

2. Alignment marks

3. Locknut

4. Chain adjusting nut

5. Axle nut

2. Remove the cotter pin from
the axle nut.

3. Loosen the axle nut.

4. Loosen the chain adjusting
locknuts on each side of the
swingarm.

4

To tighten the chain, turn the
chain adjusting nuts in direc­tion a. To loosen the chain,

b

a

3

turn the chain adjusting nuts in
direction b and push the
wheel forward. Turn each
chain adjusting nut exactly the
same amount to maintain cor­rect axle alignment. There are
marks on each side of the
swingarm. Use these marks to
align the rear wheel.

EC000096

cC

Too little chain slack will overload
the engine and other vital parts.
Keep the slack within the specified
limits.

5. After adjusting, be sure to
tighten each chain adjusting
locknut. Then tighten the axle
nut to the specified torque.

Tightening torque:

6-25

Axle nut:

105 Nm (10.5 m·kg)

PERIODIC MAINTENANCE AND MINOR REPAIR

1

1. Cotter pin

6. Insert a new cotter pin into the
axle nut and bend the end of
the cotter pin as shown. If the
notch in the axle nut and the
cotter pin hole do not match,
tighten the nut slightly to align
them.

EW000110

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Always use a new cotter pin on
the axle nut.

7. Adjust the free play in the
brake pedal.

EW000103

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Check the operation of the brake
light after adjusting the rear brake.

EAU00769

Drive chain lubrication

The chain consists of many parts
which work with each other. If the
chain is not maintained properly, it
will wear out quickly. Therefore,
the chain must be serviced regular­ly. This service is especially neces­sary when riding in dusty areas.
This motorcycle is equipped with a
sealed type chain. Steam cleaning,
high-pressure washes, and sol­vents can damage chain so do not
use these for cleaning it. Use only
kerosene to clean the drive chain.
Wipe it dry, and thoroughly lubri­cate it with SAE 30 ~ 50W motor
oil. Do not use any other lubricants
on the drive chain. They may con­tain solvents that could damage
the sealed chain.

1

2

3

4

5

6

7

8

9

6-26

PERIODIC MAINTENANCE AND MINOR REPAIR

cC

Be sure to oil the chain after wash-

1

ing the motorcycle or riding in the
rain.

2

3

4

5

6

7

8

9

EC000097

EAU02962

Cable inspection and
lubrication

EW000112

w

Damage to the outer housing of
cables may lead to internal rusting
and interfere with the cable move­ment. Replace damaged cables as
soon as possible to prevent unsafe
conditions.

Lubricate the cables and cable ends.
If a cable does not operate smooth­ly, ask a Yamaha dealer to replace it.

EAU00773

Throttle cable and grip
lubrication

The throttle twist grip assembly
should be greased at the time that
the cable is lubricated, since the
grip must be removed to get at the
end of the throttle cable. After
removing the screws, hold the end
of the cable up in the air and put in
several drops of lubricant. With the
throttle grip disassembled, coat the
metal surface of the grip assembly
with a suitable all-purpose grease.

Recommended lubricant:

Engine oil

6-27

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

3

Brake and shift pedal
lubrication

Lubricate the pivoting parts.

Recommended lubricant:

Engine oil

EAU02984

Brake and clutch lever
lubrication

Lubricate the pivoting parts.

Recommended lubricant:

Engine oil

6-28

EAU02985

EAU02986

Sidestand lubrication

Lubricate the sidestand pivoting
point and metal-to-metal contact
surfaces. Check that the sidestand
moves up and down smoothly.

Recommended lubricant:

Engine oil

EW000113

w

If the sidestand does not move
smoothly, consult a Yamaha deal­er.

4

5

6

7

8

9

PERIODIC MAINTENANCE AND MINOR REPAIR

EAU02939

Front fork inspection

Visual check

1

w

Securely support the motorcycle

2

so there is no danger of it falling
over.

3

Check for scratches or damage on

4

the inner tube and excessive oil
leakage from the front fork.

5

6

7

8

9

EW000115

Operation check

1. Place the motorcycle on a level
place.

2. Hold the motorcycle in an
upright position and apply the
front brake.

3. Push down hard on the han­dlebars several times and
check if the fork rebounds
smoothly.

cC

If any damage or unsmooth move­ment is found with the front fork,
consult a Yamaha dealer.

EC000098

EAU00794

Steering inspection

Periodically inspect the condition
of the steering. Worn out or loose
steering bearings may be danger­ous. Place a stand under the
engine to raise the front wheel off
the ground. Hold the lower end of
the front forks and try to move
them forward and backward. If any
free play can be felt, ask a Yamaha
dealer to inspect and adjust the
steering. Inspection is easier if the
front wheel is removed.

6-29

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

EW000115

w

Securely support the motorcycle
so there is no danger of it falling
over.

EAU01144

Wheel bearings

If there is play in the front or rear
wheel hub or if the wheel does not
turn smoothly, have a Yamaha
dealer inspect the wheel bearings.

1. Battery

2. Battery breather hose

EAU01071

Battery

Check the level of the battery elec­trolyte and make sure that the ter­minals are tight.
Fill with distilled water if the elec­trolyte level is low.

1

2

3

4

5

6

7

8

9

6-30

LOWER LEVEL

UPPER LEVEL

1

2

PERIODIC MAINTENANCE AND MINOR REPAIR

cC

When inspecting the battery, be

1

sure the breather hose is routed
correctly. If the breather hose is

2

positioned in such a way as to
cause battery electrolyte or gas to
exit onto the frame, structural and

3

cosmetic damage to the motorcy­cle can occur.

4

5

6

7

8

9

EC000099

EW000116

w

Battery electrolyte is poisonous
and dangerous, causing severe
burns, etc. It contains sulfuric acid.
Avoid contact with skin, eyes or
clothing.
ANTIDOTE:

8 EXTERNAL: Flush with water.
8 INTERNAL: Drink large quanti-

ties of water or milk. Follow
with milk of magnesia, beaten
egg, or vegetable oil. Call a
physician immediately.

8 EYES: Flush with water for 15

minutes and get prompt med­ical attention.

Batteries produce explosive gases.
Keep sparks, flame, cigarettes etc.,
away. Ventilate when charging or
using in an enclosed space.
Always shield your eyes when
working near batteries.
KEEP OUT OF REACH OF CHIL­DREN.

1. Maximum level mark

2. Minimum level mark

Replenishing the battery fluid

A poorly maintained battery will
corrode and discharge quickly. The
battery fluid should be checked at
least once a month. The level
should be between the minimum
level and maximum level marks.
Use only distilled water if refilling
is necessary.

6-31

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

EC000100

cC

Normal tap water contains miner­als which are harmful to a battery;
therefore, refill only with distilled
water.

EW000117

w

Take care not to spill battery fluid
on the chain. Battery fluid may
weaken the chain causing shorter
chain life and possibly result in an
accident.

Battery storage

8 When the motorcycle will not

be used for a month or longer,
remove the battery, fully
charge it and store it in a cool,
dry place. Completely recharge
the battery before reinstalla­tion.

8 If the battery will be stored for

longer than two months, check
the specific gravity of the fluid
at least once a month and fully
recharge the battery when it is
too low.

8 Always make sure the connec-

tions are correct when putting
the battery back in the motor­cycle. Make sure the breather
hose is properly connected
and is not damaged or
obstructed.

1. Main fuse

2. Signaling system fuse

EAU01073

Fuse replacement

The fuse cases are located under
the rider seat.
If a fuse is blown, turn off the main
switch and the switch of the circuit
in question. Install a new fuse of
specified amperage. Turn on the
switches and see if the electrical
device operates. If the fuse imme­diately blows again, consult a
Yamaha dealer.

1

2

3

4

5

6

7

8

9

6-32

1

2

PERIODIC MAINTENANCE AND MINOR REPAIR

1

EC000103

cC

Do not use fuses of higher amper-

1

age rating than those recommend­ed. Substitution of a fuse of

2

improper rating can cause exten­sive electrical system damage and
possibly a fire.

3

4

Specified fuses:

Main fuse: 20A

5

Signaling system fuse: 10A

1. Screw (×2)

EAU00833

Headlight bulb replacement

This motorcycle is equipped with a
quartz bulb headlight.

6

If the headlight bulb burns out,

1. Bulb cover

2. Connector (×2)

2. Remove the connectors, the
headlight unit and then the
bulb cover.

replace the bulb as follows:

7

1. Remove the headlight unit
screws.

8

9

6-33

PERIODIC MAINTENANCE AND MINOR REPAIR

1

1. Bulb holder

3. Turn the bulb holder counter­clockwise to remove it and
remove the defective bulb.

EW000119

w

Keep flammable products and your
hands away from a bulb while it is
on, as it is hot. Do not touch a bulb
until it cools down.

4. Put a new bulb into position
and secure it in place with the
bulb holder.

1

1. Don’t touch

EC000105

cC

Avoid touching the glass part of a
bulb. Keep it free from oil; other­wise, the transparency of the
glass, life of the bulb, and lumi­nous flux will be adversely affect­ed. If oil gets on a bulb, thoroughly
clean it with a cloth moistened
with alcohol or lacquer thinner.

5. Install the bulb cover, connec­tors and headlight unit.
Ask a Yamaha dealer to adjust
the headlight beam if neces­sary.

1

1. Screw (×2)

EAU03010

Turn signal light bulb
replacement

1. Remove the screws and the
lens.

1

2

3

4

5

6

7

8

9

6-34

1

PERIODIC MAINTENANCE AND MINOR REPAIR

1

1

1

2

3

1. Bulb

4

2. Remove the defective bulb by

5

6

pushing it inward and turning
it counterclockwise.

3. Install a new bulb by pushing
it inward and turning it clock­wise.

7

4. Install the lens and tighten the
screws.

8

9

1. Screw (×2)

EAU01623

Taillight bulb replacement

1. Remove the screws and the
lense.

1. Bulb

2. Remove the defective bulb by
pushing it inward and turning
it counterclockwise.

3. Install a new bulb by pushing
it inward and turning it clock­wise.

4. Install the lense and tighten
the screws.

EC000108

cC

Do not over-tighten the screws as
the lens may break.

6-35

PERIODIC MAINTENANCE AND MINOR REPAIR

1

EAU00862

Supporting the motorcycle

Since the Yamaha XV125S has no
centerstand, follow these precau­tions when removing the front and
rear wheel or performing other
maintenance requiring the motor­cycle to stand upright.

Front wheel service

To stabilize the rear of the motor­cycle, either use a motorcycle
stand or place a motorcycle jack
under the frame in front of the rear
wheel to prevent it from moving
from side to side. Then use a
motorcycle stand to elevate the
front wheel off of the ground.

Rear wheel service

Use a motorcycle stand or motor­cycle jack to elevate the motorcycle
so the rear wheel is off the ground.
Alternatively, two jacks can be
placed under the frame or
swingarm.
Check that the motorcycle is in a
stable and level position before
starting any maintenance. A strong
wooden box can be placed under
the engine for added stability.

1. Speedometer cable

EAU00894

Front wheel removal

EW000122

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8 It is advisable to have a

Yamaha dealer service the
wheel.

8 Securely support the motorcy-

cle so there is no danger of it
falling over.

1. Remove the speedometer
cable from the front wheel
side.

1

2

3

4

5

6

7

8

9

6-36

PERIODIC MAINTENANCE AND MINOR REPAIR

2

1

1

2

3

1. Pinch bolt

4

2. Wheel axle

2. Loosen the pinch bolt and

5

wheel axle.

3. Elevate the front wheel by

6

placing a suitable stand under
the engine.

4. Remove the wheel axle and

7

the front wheel.

8

NOTE:

Do not depress the brake lever

9

when the disc and caliper are sepa­rated.

Front wheel installation

1. Install the speedometer gear
unit into the wheel hub. Make
sure the wheel hub and the
speedometer gear unit hous­ing are installed with the pro­jections meshed into the slots.

2. Lift up the wheel between the
front fork legs and guide the
brake disc between the brake
pads. Make sure there is
enough gap between the brake
pads before inserting the brake
disc.

EAU01547

3. Make sure the slot in the
speedometer gear unit fits
over the stopper on the front
fork outer tube.

4. Install the wheel axle and let
the motorcycle down.

6-37

PERIODIC MAINTENANCE AND MINOR REPAIR

5. Push down hard on the han­dlebars several times to check
for proper fork operation.

6. Tightening the wheel axle to
the specified torque.

7. Install the pinch bolts and
tighten them to the specified
torque.

Tightening torque:

Wheel axle:

59 Nm (5.9 m·kg)

Pinch bolt:

20 Nm (2.0 m·kg)

8. Install the speedometer cable.

EAU01550

Rear wheel removal

EW000122

w

8 It is advisable to have a

Yamaha dealer service the
wheel.

8 Securely support the motorcy-

cle so there is no danger of it
falling over.

1. Remove the axle nut cotter pin
and brake torque rod cotter
pin.

5

1

4

2

3

1. Brake torque rod

2. Brake torque rod cotter pin

3. Brake torque rod nut

4. Brake rod

5. Rear brake pedal free play adjusting nut

2. Loosen the axle nut and brake
torque nut.

3. Elevate the rear wheel by plac­ing a suitable stand under the
engine.

4. Remove the brake torque rod
nut and bolt from the brake
shoe plate.

1

2

3

4

5

6

7

8

9

6-38

PERIODIC MAINTENANCE AND MINOR REPAIR

1

1

2

5

3

1. Cotter pin

4

2. Alignment marks

3. Locknut

4. Chain adjusting nut

5

5. Axle nut

5. Remove the rear brake pedal

6

7

8

9

free play adjusting nut and
brake rod from the brake cam
lever.

6. Loosen the locknuts and chain
adjusting nuts on each side.

7. Remove the axle nut.

8. Pull out the wheel axle and
remove the wheel assembly.

EAU01696

Rear wheel installation

2

3

4

1. Install the rear wheel and the
axle.

2. Install the axle nut and let the
motorcycle down.

3. Insert the brake rod into the
brake cam lever and install the
brake pedal free play adjusting

7. Adjust the rear brake pedal
height and free play. (See page
6-21.)

EW000103

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Check the operation of the brake
light after adjusting the rear brake.

nut.

4. Install the brake torque rod
bolt and tighten to the speci­fied tightening torque. Then
install a new cotter pin.

Specified torque:

Brake torque rod bolt:

23 Nm (2.3 m·kg)

5. Adjust the drive chain free
play. (See page 6-25.)

6. Tighten the axle nut to the
specified tightening torque.

Specified torque:

Axle nut:

105 Nm (10.5 m·kg)

6-39

EAU01008

Troubleshooting

Although Yamaha motorcycles
receive a rigid inspection before
shipment from the factory, trouble
may occur during operation.
Any problem in the fuel, compres­sion, or ignition systems can cause
poor starting and loss of power.
The troubleshooting chart
describes a quick, easy procedure
for making checks.
If your motorcycle requires any
repair, bring it to a Yamaha dealer.
The skilled technicians at a
Yamaha dealership have the tools,
experience, and know-how to
properly service your motorcycle.
Use only genuine Yamaha parts on
your motorcycle. Imitation parts
may look like Yamaha parts, but
they are often inferior.
Consequently, they have a shorter
service life and can lead to expen­sive repair bills.

PERIODIC MAINTENANCE AND MINOR REPAIR

1

2

3

4

5

6

7

8

9

6-40

PERIODIC MAINTENANCE AND MINOR REPAIR

1. Fuel

2. Compression

3. Ignition

4. Battery

Remove spark

There is compression.

Go to ignition check.

No compression.

Ask a Yamaha dealer to inspect.

Wet.

Dry.

Wipe clean with dry cloth and correct Open throttle half-way and start the

Ask a Yamaha dealer to inspect.

Engine turns over

Engine turns over

Battery good.

Check fluid, recharge,

Check if there is fuel

Enough fuel.

No fuel.

Go to compression check.

Supply fuel.

in the fuel tank

electrode.

plugs and check

quickly.

slowly. check connections.

Engine doesn’t start, go to battery
check.

engine.plug gap or replace spark plugs.

Engine doesn’t start, ask a
Yamaha dealer to inspect.

Engine doesn’t start, go to
compression check.

Use the electric
starter.

Use the electric
starter.

Troubleshooting chart

w

1

Never check the fuel system while smoking or in the vicinity of an open flame.

2

3

EAU01562

EW000125

4

5

6

7

8

9

6-41

EAU01517

MOTORCYCLE CARE AND STORAGE

Care

The exposure of its technology
makes a motorcycle charming but
also vulnerable. Although high­quality components are used, they
are not all rust-resistant. While a
rusty exhaust pipe may remain
unnoticed on a car, it does look
unattractive on a motorcycle.
Frequent and proper care, howev­er, will keep your motorcycle look­ing good, extend its life and main­tain its performance. Moreover, the
warranty states that the vehicle
must be properly taken care of. For
all these reasons, it is recommend­ed that you observe the following
cleaning and storing precautions.

Before cleaning

1. Cover up the muffler outlets
with plastic bags.

2. Make sure that all caps and
covers as well as all electrical
couplers and connectors,
including the spark plug caps,
are tightly installed.

3. Remove extremely stubborn
dirt, like oil burnt onto the
crankcase, with a degreasing
agent and a brush, but never
apply such products onto
seals, gaskets, sprockets, the
drive chain and wheel axles.
Always rinse the dirt and
degreaser off with water.

Cleaning

After normal use
Remove dirt with warm water, a
neutral detergent and a soft clean
sponge, then rinse with plenty of
clean water. Use a tooth or bottle
brush for hard-to-reach parts.
Tougher dirt and insects will come
off more easily if the area is cov­ered with a wet cloth for a few
minutes before cleaning.

ECA00010

cC

8 Avoid using strong acidic

wheel cleaners, especially on
spoked wheels. If you do use
such products for hard-to­remove dirt, do not leave it on
any longer than instructed,
then thoroughly rinse it off
with water, immediately dry
the area and apply a corrosion
protection spray.

1

2

3

4

5

6

7

8

9

7-1

MOTORCYCLE CARE AND STORAGE

8 Improper cleaning can damage

windshields, cowlings, panels

1

2

3

4

5

6

7

8

9

and other plastic parts. Use
only a soft, clean cloth or
sponge with mild detergent
and water to clean plastic.

8 Do not use any harsh chemical

products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abra­sive cleaning products, solvent
or thinner, fuel (gasoline), rust
removers or inhibitors, brake
fluid, antifreeze or electrolyte.

8 Do not use high-pressure

washers or steam-jet cleaners
since they cause water seep­age and deterioration in the
following areas: seals (of
wheel bearings, swingarm
bearings, forks and brakes),
electric components (couplers,
connectors, instruments,
switches and lights), breather
hoses and vents.

8 For motorcycles equipped

with a windshield: Do not use
strong cleaners or hard
sponges as they will cause
dulling or scratching. Some
cleaning compounds for plas­tic may leave scratches on the
windshield. Test the product
on a small hidden part of the
windshield to make sure they
do not leave any marks. If the
windshield is scratched, use a
quality plastic polishing com­pound after washing.

After riding in the rain, near the
sea or on salt-sprayed roads
Since sea salt or salt sprayed on
the roads in the winter are
extremely corrosive in combina­tion with water, carry out the fol­lowing steps after each ride in the
rain, near the sea or on salt­sprayed roads. (Salt sprayed in the
winter may remain on the roads
well into spring.)

1. Clean your motorcycle with
cold water and soap after the
engine has cooled down.

ECA00012

cC

Do not use warm water since it
increases the corrosive action of
the salt.

2. Be sure to apply a corrosion
protection spray on all (even
chrome- and nickel-plated)
metal surfaces to prevent cor­rosion.

7-2

MOTORCYCLE CARE AND STORAGE

After cleaning

1. Dry the motorcycle with a
chamois or an absorbing cloth.

2. Immediately dry the drive
chain and lubricate it to pre­vent it from rusting.

3. Use a chrome polish to shine
chrome, aluminum and stain­less-steel parts, including the
exhaust system. (Even the
thermally induced discoloring
of stainless-steel exhaust sys­tems can be removed through
polishing.)

4. To prevent corrosion, it is rec­ommended to apply a corro­sion protection spray on all
(even chrome- and nickel-plat­ed) metal surfaces.

5. Use spray oil as a universal
cleaner to remove any remain­ing dirt.

6. Touch up minor paint damage
caused by stones, etc.

7. Wax all painted surfaces.

8. Let the motorcycle dry com­pletely before storing it or cov­ering it.

EWA00001

w

Make sure that there is no oil or
wax on the brakes and tires. If nec­essary, clean the brake discs and
linings with a regular brake disc
cleaner or acetone, and wash the
tires with warm water and mild
soap. Then, carefully test the
motorcycle for its braking perfor­mance and cornering behavior.

ECA00013

cC

8 Apply spray oil and wax spar-

ingly and wipe off any excess.

8 Never apply oil or wax on rub-

ber and plastic parts, but treat
them with a suitable care
product.

8 Avoid using abrasive polishing

compounds as they wear
away the paint.

7-3

NOTE:

Consult a Yamaha dealer for
advice on what products to use.

1

2

3

4

5

6

7

8

9

MOTORCYCLE CARE AND STORAGE

Storage

Short-term

Always store your motorcycle in a

1

cool, dry place and, if necessary,
protect it against dust with a

2

porous cover.

cC

3

8 Storing the motorcycle in a

4

5

6

7

8

9

poorly ventilated room or cov­ering it with a tarp while it is
still wet will allow water and
humidity to seep in and cause
rust.

8 To prevent corrosion, avoid

damp cellars, stables (because
of the presence of ammonia)
and areas where strong chem­icals are stored.

ECA00014

Long-term

Before storing your motorcycle for
several months:

1. Follow all the instructions in
the “Care” section of this
chapter.

2. Drain the carburetor float
chambers by loosening the
drain bolts; this will prevent
fuel deposits from building up.
Pour the drained fuel into the
fuel tank.

3. Only for motorcycles equipped
with a fuel cock which has an
“OFF” position: Turn the fuel
cock to “OFF”.

4. Fill up the fuel tank and add
fuel stabilizer (if available) to
prevent the fuel tank from rust­ing and the fuel from deterio­rating.

5. Perform the following steps to
protect the cylinders, piston
rings, etc. from corrosion.

a. Remove the spark plug caps

and spark plugs.

b. Pour a teaspoonful of engine

oil into each spark plug bore.

7-4

c. Install the spark plug caps onto

the spark plugs and place the
spark plugs on the cylinder
head so that the electrodes are
grounded. (This will limit
sparking during the next step.)

d. Turn the engine over several

times with the starter. (This
will coat the cylinder walls
with oil.)

e. Remove the spark plug caps

from the spark plugs, install
the spark plugs and then the
spark plug caps.

EWA00003

w

When turning the engine over, be
sure to ground the spark plug elec­trodes to prevent damage or injury
from sparking.

6. Lubricate all control cables and
the pivoting points of all levers
and pedals as well as of the
sidestand/centerstand.

MOTORCYCLE CARE AND STORAGE

7. Check and, if necessary, cor­rect the tire air pressure, then
raise the motorcycle so that
both of its wheels are off the
ground. Alternatively, turn the
wheels a little every month in
order to prevent the tires from
becoming degraded in one
spot.

8. Cover up the muffler outlets
with plastic bags to prevent
moisture from entering.

9. Remove the battery and fully
charge it. Store it in a cool, dry
place and recharge it once a
month. Do not store the bat­tery in an excessively cold or
warm place (less than 0°C or
more than 30°C). For more
information, see “Battery stor­age” in the chapter “PERIODIC
MAINTENANCE AND MINOR
REPAIRS”.

NOTE:

Make any necessary repairs before
storing the motorcycle.

1

2

3

4

5

6

7

8

9

7-5

SPECIFICATIONS

–10° 0° 10° 20° 30°

40°

SAE 10W/30

SAE 10W/40

SAE 20W/40

SAE 20W/50

–20°

SAE 15W/40

50°C

Specifications

EAU01038

1

2

3

4

5

6

Model XV125S

Dimensions

Overall length 2,190 mm

Overall width 805 mm

Overall height 1,140 mm

Seat height 685 mm

Wheel base 1,495 mm

Ground clearance 145 mm

Minimum turning radius 2,800 mm

Basic weight (with oil and full
fuel tank) 147 kg

Engine

Engine type Air-cooled 4-stroke, SOHC,

7

Cylinder arrangement V-type 2-cylinder

8

9

Displacement 124 cm
Bore × Stroke 41.0 × 47.0 mm

Compression ratio 10.7:1

Starting system Electric starter

Lubrication system Wet sump

gasoline

Engine oil

Type

Recommended engine oil
classification API Service SE, SF, SG type

or higher

cC

Be sure to use motor oils that do not contain anti-friction
modifiers. Passenger car motor oils (often labeled “Energy

3

8-1

Conserving”) contain anti-friction additives which will cause
clutch and/or starter clutch slippage, resulting in reduced
component life and poor engine performance.

Quantity

Periodic oil change 1.4 L

With oil filter replacement 1.6 L

Total amount 1.7 L

Air filter Wet type element

SPECIFICATIONS

Fuel

Type Regular unleaded gasoline

Fuel tank capacity 9.5 L

Reserve amount 2.6 L

Carburetor

Type/quantity BDS26/1

Manufacturer MIKUNI

Spark plug

Manufacturer / Type NGK / CR6HSA or

DENSO / U20FSR-U

Gap 0.6 ~ 0.7 mm

Clutch type Wet, multiple-disc

Transmission

Primary reduction system Spur gear

Primary reduction ratio 3.400

Secondary reduction system Chain drive

Secondary reduction ratio 3.615

Number of sprocket teeth
(Rear/Front) 47/13

Transmission type Constant mesh 5-speed

Operation Left foot operation

Gear ratio 1st 2.643

2nd 1.684

3rd 1.261

4th 1.000

5th 0.821

Chassis

Frame type Double cradle

Caster angle 32°

Trail 120 mm

Tire

Type With tube

Front

Size 3.00-18 47P

Manufacturer/ CHENG SHIN / C-916
model

Rear

Size 130/90-15 M/C 66P

Manufacturer/ CHENG SHIN / C-915
model

1

2

3

4

5

6

7

8

9

8-2

SPECIFICATIONS

1

2

3

4

5

6

7

8

9

Maximum load* 183 kg

Air pressure (cold tire)
up to 90 kg load*

Front

Rear

90 kg load ~ Maximum
load*

Front

Rear

*Load is total weight of cargo, rider, passenger and accessories.

Wheels

Front

Type Spoke wheel
Size 18 × 1.6

Rear

Type Spoke wheel
Size 15 M/C × MT 2.75

Brakes

Front

Type Single disc brake

Operation Right hand operation

Fluid DOT 4 or DOT 3

175 kPa (1.75 kg/cm2, 1.75 bar)

200 kPa (2.00 kg/cm2, 2.00 bar)

200 kPa (2.00 kg/cm2, 2.00 bar)

225 kPa (2.25 kg/cm2, 2.25 bar)

8-3

Rear

Type Drum brake

Operation Right foot operation

Suspension

Front

Type Telescopic fork

Rear

Type Swingarm

Shock absorbers

Front Coil spring/oil damper

Rear Coil spring/oil damper

Wheel travel

Front 140 mm

Rear 100 mm

Electrical system

Ignition system T.C.I. (Digital)

Charging system

Type A.C. magneto

Standard output 14 V, 22 A @ 5,000 rpm

Battery

Type GM10-3A-2

Voltage, capacity 12 V, 10 AH

Headlight type Quartz bulb (Halogen)

SPECIFICATIONS

Bulb voltage, wattage × quantity

Headlight 12 V, 60 W/55 W × 1
Tail/brake light 12 V, 5 W/21 W × 1
Flasher light 12 V, 21 W × 4
Auxiliary light 12 V, 4 W × 1 (except for GB)

12 V , 3.4 W × 1 (for GB)
Meter light 12 V, 1.7 W × 1
Neutral indicator light 12 V, 1.7 W × 1
High beam indicator light 12 V, 1.7 W × 1
Turn indicator light 12 V, 3 W × 1

Fuse

Main 20 A

Signaling system 10 A

1

2

3

4

5

6

7

8

9

8-4

SPECIFICATIONS

HOW TO USE THE CONVERSION TABLE

All specification data in this manual are listed in SI

1

and METRIC UNITS.
Use this table to convert METRIC unit data to
IMPERIAL unit data.

2

Ex.

3

4

5

6

7

8

METRIC MULTIPLIER IMPERIAL

** mm × 0.03937 = ** in

2 mm × 0.03937 = 0.08 in

EAU01064

CONVERSION TABLE

METRIC TO IMPERIAL

Metric unit Multiplier Imperial unit

m • kg 7.233 ft •lb

Torque

Weight

Speed km/hr 0.6214 mph

Distance m 1.094 yd

Volume/ cc (cm
Capacity lt (liter) 0.8799 qt (IMP liq.)

Misc. kg/cm

m • kg 86.794 in• lb
cm • kg 0.0723 ft •lb
cm • kg 0.8679 in •lb

kg 2.205 lb
g 0.03527 oz

km 0.6214 mi
m 3.281 ft

cm 0.3937 in
mm 0.03937 in

3

) 0.03527 oz (IMP liq.)

cc (cm

3

) 0.06102 cu• in

lt (liter) 0.2199 gal (IMP liq.)

kg/mm 55.997 lb/in

2

Centigrade(°C)

14.2234 psi (lb/in2)
9/5 + 32

Fahrenheit(°F)

9

8-5

EAU01039

1

EAU02944

Identification number
records

Record the key identification num­ber, vehicle identification number
and model label information in the
spaces provided for assistance
when ordering spare parts from a
Yamaha dealer or for reference in
case the vehicle is stolen.

1. KEY IDENTIFICATION
NUMBER:

2. VEHICLE IDENTIFICATION
NUMBER:

CONSUMER INFORMATION

1. Key identification number

EAU01042

Key identification number

The key identification number is
stamped on the key.
Record this number in the space
provided and use it for reference
when obtaining a new key.

1

1. Vehicle identification number

EAU01043

Vehicle identification
number

The vehicle identification number
is stamped into the steering head
pipe.
Record this number in the space
provided.

1

2

3

4

5

6

7

3. MODEL LABEL INFORMATION:

1
6

9-1

NOTE:

The vehicle identification number
is used to identify your motorcycle
and may be used to register your
motorcycle with the licensing
authority in your state.

8

9

CONSUMER INFORMATION

1

1

2

3

1. Model label

4

Model label

The model label is affixed to the

5

frame under the seat. (See page
3-9 for seat removal procedures.)

6

Record the information on this
label in the space provided. This

7

information will be needed to
order spare parts from your

8

Yamaha dealer.

EAU01050

9

9-2

PRINTED ON RECYCLED PAPER

YAMAHA MOTOR CO., LTD.

PRINTED IN JAPAN
99·6–0.1×1(E)

!