INTRODUCTION
EAU10113
Welcome to the Yamaha world of motorcycling!
As the owner of the XC125, you are benefi ting from Yamaha’s vast experience and newest technology regarding the de-
sign and 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 advantages of your XC125. The Owner's Manual
does not only instruct you in how to operate, inspect and maintain your scooter, but also in how to safeguard yourself
and others from trouble and injury.
In addition, the many tips given in this manual will help keep your scooter 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 fi rst!
Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most
current product information available at the time of printing, there may be minor discrepancies between your scooter and
this manual. If there is any question concerning this manual, please consult a Yamaha dealer.
EWA12411
WARNING
Please read this manual carefully and completely before operating this scooter.
2 ( ' K P F F
J`.,*f J`.,Q/f2J`.,`oJ`.,I\6"
IMPORTANT MANUAL INFORMATION
EAU10132
Particularly important information is distinguished in this manual by the following notations:QThis is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury
or death.
WARNING
A WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
NOTICE
A NOTICE indicates special precautions that must be taken to avoid damage to the
vehicle or other property.
TIP
A TIP provides key information to make procedures easier or clearer.
2 ( ' K P F F
J`.,*f J`.,Q/f2J`.,`oJ`.,I\6"
TABLE OF CONTENTSSAFETY INFORMATION .................... 1-1
Further safe-riding points ................. 1-5
DESCRIPTION .................................... 2-1
Left view ........................................... 2-1
Right view......................................... 2-2
Controls and instruments ................. 2-3
INSTRUMENT AND CONTROL FUNC-
TIONS.................................................. 3-1
Main switch/steering lock ................. 3-1
Keyhole cover .................................. 3-2
Indicator and warning lights ............. 3-2
Speedometer.................................... 3-3
Multi-function display........................ 3-3
Handlebar switches .......................... 3-5
Front brake lever .............................. 3-6
Rear brake lever............................... 3-6
Fuel tank cap.................................... 3-7
Fuel .................................................. 3-7
Catalytic converters.......................... 3-9
Kickstarter ........................................ 3-9
Seat ................................................ 3-10
Storage compartments ................... 3-10
Sidestand ....................................... 3-11
Ignition circuit cut-off system .......... 3-12
FOR YOUR SAFETY - PRE-OPERATION
CHECKS ............................................. 4-1OPERATION AND IMPORTANT RIDING
POINTS ............................................... 5-1
Starting the engine ........................... 5-1
Starting off ........................................ 5-2
Acceleration and deceleration .......... 5-2
Braking ............................................. 5-2
Tips for reducing fuel consumption .. 5-3
Engine break-in ................................ 5-3
Parking ............................................. 5-4
PERIODIC MAINTENANCE AND AD-
JUSTMENT ......................................... 6-1
Owner’s tool kit................................. 6-2
Periodic maintenance chart for the
emission control system ............... 6-3
General maintenance and lubrication
chart .............................................. 6-4
Removing and installing panels ....... 6-7
Checking the spark plug................... 6-8
Engine oil and oil strainer ............... 6-10
Final transmission oil...................... 6-12
Air fi lter and V-belt case air fi lter
elements ..................................... 6-13
Checking the throttle grip free
play ............................................. 6-15
Valve clearance.............................. 6-15
Tires ............................................... 6-16
Cast wheels.................................... 6-17
Checking the brake lever free
play ............................................. 6-18Adjusting the rear brake lever free
play ............................................. 6-18
Checking the front brake pads and
rear brake shoes ......................... 6-19
Checking the brake fl uid level ........ 6-19
Changing the brake fl uid ................ 6-20
Checking and lubricating the
cables ......................................... 6-21
Checking and lubricating the throttle grip
and cable .................................... 6-21
Lubricating the front and rear brake
levers .......................................... 6-21
Checking and lubricating the
centerstand and sidestand.......... 6-22
Checking the front fork ................... 6-23
Checking the steering .................... 6-23
Checking the wheel bearings ......... 6-24
Battery ............................................ 6-24
Replacing the fuses........................ 6-26
Replacing the headlight bulb .......... 6-27
Replacing a front turn signal light
bulb ............................................. 6-28
Replacing the tail/brake light bulb or a
rear turn signal light bulb ............ 6-28
Replacing an auxiliary light bulb..... 6-29
Troubleshooting ............................. 6-29
Troubleshooting chart .................... 6-31
SCOOTER CARE AND STORAGE .... 7-1
Matte color caution ........................... 7-1
Care ................................................. 7-1
2 ( ' K P F F
J`.,*f J`.,Q/f2J`.,`oJ`.,I\6"
1
2
3
4
5
6
7
8
9
1-1
Q
SAFETY INFORMATION
EAU10268
Be a Responsible Owner
As the vehicle’s owner, you are re-
sponsible for the safe and proper op-
eration of your scooter.
Scooters are single-track vehicles.
Their safe use and operation are de-
pendent upon the use of proper riding
techniques as well as the expertise of
the operator. Every operator should
know the following requirements be-
fore riding this scooter.
He or she should:● Obtain thorough instructions from
a competent source on all as-
pects of scooter operation.● Observe the warnings and main-
tenance requirements in this
Owner’s Manual.● Obtain qualifi ed training in safe
and proper riding techniques.● Obtain professional technical ser-
vice as indicated in this Owner’s
Manual and/or when made nec-
essary by mechanical conditions.
Safe Riding
Perform the pre-operation checks
each time you use the vehicle to make sure it is in safe operating condition.
Failure to inspect or maintain the ve-
hicle properly increases the possibility
of an accident or equipment damage.
See page 4-2 for a list of pre-opera-
tion checks.
● This scooter is designed to carry
the operator and a passenger.● The failure of motorists to detect
and recognize scooters in traf-
fi c is the predominating cause
of automobile/scooter accidents.
Many accidents have been
caused by an automobile driver
who did not see the scooter. Mak-
ing yourself conspicuous appears
to be very effective in reducing
the chance of this type of acci-
dent.
Therefore:
• Wear a brightly colored jacket.
• Use extra caution when you
are approaching and passing
through intersections, since in-
tersections are the most likely
places for scooter accidents to
occur.• Ride where other motorists can
see you. Avoid riding in another
motorist’s blind spot.
● Many accidents involve inexpe-
rienced operators. In fact, many
operators who have been in-
volved in accidents do not even
have a current driver’s license.
• Make sure that you are quali-
fi ed and that you only lend your
scooter to other qualifi ed op-
erators.
• Know your skills and limits.
Staying within your limits may
help you to avoid an accident.
• We recommend that you prac-
tice riding your scooter where
there is no traffi c until you have
become thoroughly familiar
with the scooter and all of its
controls.● Many accidents have been
caused by error of the scooter
operator. A typical error made by
the operator is veering wide on
a turn due to excessive speed or
undercornering (insuffi cient lean
angle for the speed).
Q
SAFETY INFORMATION
2 ( ' K P F F
J`.,*f J`.,Q/f2J`.,`oJ`.,I\6"
1
2
3
4
5
6
7
8
9
3-1
EAU1044E
INSTRUMENT AND CONTROL FUNCTIONS
EAU1044E
INSTRUMENT AND CONTROL FUNCTIONS
EAU45440
Main switch/steering lockZAUM00**ON
OFF
LOCK
The main switch/steering lock controls
the ignition and lighting systems, and
is used to lock the steering. The vari-
ous positions are described below.TIPThe main switch/steering lock is
equipped with a keyhole cover. (See
page 3-2.)
EAUT1971
ON
All electrical circuits are supplied with
power; the meter lighting, taillight, and
auxiliary lights come on, and the en-
gine can be started. The key cannot
be removed.
TIPThe headlight comes on automatically
when the engine is started and stays
on until the key is turned to “OFF” or
the sidestand is moved down.
EAU10661
OFF
All electrical systems are off. The key
can be removed.
EWA10061
WARNING
Never turn the key to “OFF” or
“LOCK” while the vehicle is mov-
ing. Otherwise the electrical sys-
tems will be switched off, which
may result in loss of control or an
accident.
EAU10683
LOCK
The steering is locked, and all electri-
cal systems are off. The key can be
removed.
To lock the steeringZAUM00**
1
1. Push.1. Turn the handlebars all the way
to the left.
2. Push the key in from the “OFF”
position, and then turn it to
“LOCK” while still pushing it.
3. Remove the key.
2 ( ' K P F F
J`.,*f J`.,Q/f2J`.,`oJ`.,I\6"
1
2
3
4
5
6
7
8
9
3-2
EAU1044E
INSTRUMENT AND CONTROL FUNCTIONS
EAUT2111
Keyhole coverZAUM00**
1
1. Keyhole cover leverTo open the keyhole cover
Insert the key bow into the keyhole
cover receptacle as shown, and then
turn the key to the right to open the
cover.
To close the keyhole cover
Push the keyhole cover lever inward
and the keyhole cover will close.
EAU11004
Indicator and warning lightsZAUM00**
RESET
SELECT
1
2
3
1. High beam indicator light “&”
2. Turn signal indicator light “5”
3. Engine trouble warning light “
”
EAU11020
Turn signal indicator light “
5
”
This indicator light fl ashes when the
turn signal switch is pushed to the left
or right.EAU11080
High beam indicator light “&”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAUT1934
Engine trouble warning light “
”
This warning light fl ashes or stays on
if an electrical circuit monitoring the To unlock the steering
12
ZAUM00**1. Turn.
2. Release.Push the key in, and then turn it to
“OFF” while still pushing it.
2 ( ' K P F F
J`.,*f J`.,Q/f2J`.,`oJ`.,I\6"
1
2
3
4
5
6
7
8
9
3-3
EAU1044E
INSTRUMENT AND CONTROL FUNCTIONS
engine is not working correctly. If this
occurs, have a Yamaha dealer check
the self-diagnosis system.
The electrical circuit of the warning
light can be checked by turning the
key to “ON”. The warning light should
come on for a few seconds, and then
go off.
If the warning light does not come
on initially when the key is turned to
“ON”, or if the warning light remains
on, have a Yamaha dealer check the
electrical circuit.
EAU11601
SpeedometerZAUM00**
RESET
SELECT
1
1. SpeedometerThe speedometer shows the riding
speed.
When the key is turned to “ON”, the
speedometer needle will sweep once
across the speed range and then re-
turn to zero in order to test the electri-
cal circuit.
EAUT1957
Multi-function display
EWA14431
WARNING
Be sure to stop the vehicle before
making any setting changes to the
multi-function display. Changing
settings while riding can distract
the operator and increase the risk
of an accident.ZAUM00**
RESET
SELECT
1
2
3
4
5
6
1. Oil change indicator “7”
2. Odometer
3. Fuel meter
4. “RESET” button
5. “SELECT” button
6. ClockThe multi-function display is equipped
with the following:●
an odometer
2 ( ' K P F F
J`.,*f J`.,Q/f2J`.,`oJ`.,I\6"
1
2
3
4
5
6
7
8
9
3-7
EAU1044E
INSTRUMENT AND CONTROL FUNCTIONS
EAU13074
Fuel tank capTo open the fuel tank cap
Open the fuel tank cap lock cover,
insert the key into the lock, and then
turn it 1/4 turn clockwise. The lock will
be released and the fuel tank cap can
be opened.ZAUM00**
1
1. Fuel tank cap lock coverTo close the fuel tank cap
1. Push the fuel tank cap into posi-
tion with the key inserted in the
lock.
2. Turn the key counterclockwise to
the original position, remove it,
and then close the lock cover.
TIPThe fuel tank cap cannot be closed
unless the key is in the lock. In addi-
tion, the key cannot be removed if the
cap is not properly closed and locked.
EWA11091
WARNING
Make sure that the fuel tank cap
is properly closed after lling fuel.
Leaking fuel is a re hazard.
EAU13221
FuelZAUM00**
1
2
1. Fuel tank fi ller tube
2. Fuel levelMake sure there is suffi cient gasoline
in the tank.
EWA10881
WARNING
Gasoline and gasoline vapors are
extremely ammable. To avoid res
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.
1. Before refueling, turn off the en-
gine and be sure that no one is
sitting on the vehicle. Never re-
fuel while smoking, or while in the
2 ( ' K P F F
J`.,*f J`.,Q/f2J`.,`oJ`.,I\6"