YAMAHA XENTER 125 2012 Repair Manual
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
ECA10590
NOTICEIf any damage is found or the front 
fork does not operate smoothly, 
have a Yamaha dealer check or re-
pair it.
EAU23272
Checking the front forkThe condition and operation of the 
front fork must be checked as follows 
at the intervals specifi ed in the period-
ic maintenance and lubrication chart.
To check the condition
Check the inner tubes for scratches, 
damage and excessive oil leakage.
To check the operation
1.  Place the vehicle on a level sur-
face and hold it in an upright 
position. WARNING! To avoid 
injury, securely support the ve-
hicle so there is no danger of it 
falling over.
[EWA10751]
2.  While applying the front brake, 
push down hard on the handle-
bars several times to check if the 
front fork compresses and re-
bounds smoothly.
Recommended lubricant:
Lithium-soap-based grease
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EAUT3760
Battery
1
1. BatteryThis model is equipped with a VRLA 
(Valve Regulated Lead Acid) battery. 
There is no need to check the electro-
lyte or to add distilled water. However, 
the battery lead connections need to 
be checked and, if necessary, tight-
ened.
EWA10760
WARNING
● 
Electrolyte is poisonous and 
dangerous since it contains 
sulfuric acid, which causes se-
vere burns. Avoid any contact 
with skin, eyes or clothing and 
EAU23291
Checking the wheel bearingsThe front and rear wheel bearings 
must be checked at the intervals 
specifi ed in the periodic maintenance 
and lubrication chart. If there is play in 
the wheel hub or if the wheel does not 
turn smoothly, have a Yamaha dealer 
check the wheel bearings.
EAU45511
Checking the steeringWorn or loose steering bearings may 
cause danger. Therefore, the opera-
tion of the steering must be checked 
as follows at the intervals specifi ed in 
the periodic maintenance and lubrica-
tion chart.
1.  Place the vehicle on the cen-
terstand. WARNING! To avoid 
injury, securely support the ve-
hicle so there is no danger of it 
falling over.
[EWA10751]
2.  Hold the lower ends of the front 
fork legs and try to move them 
forward and backward. If any free 
play can be felt, have a Yamaha 
dealer check or repair the steer-
ing.
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PERIODIC MAINTENANCE AND ADJUSTMENT
NOTICE:
 When removing the 
battery, be sure the key is 
turned to “OFF”, then discon-
nect the negative lead before 
disconnecting the positive 
lead.
[ECA16302]
2.  If the battery will be stored for 
more than two months, check it 
at least once a month and fully 
charge it if necessary.
3.  Fully charge the battery before 
installing it. 
NOTICE:
 When in-
stalling the battery, be sure the 
key is turned to “OFF”, then 
connect the positive lead be-
fore connecting the negative 
lead.
[ECA16840]
4.  After installing the battery, make 
sure that the battery leads are 
properly connected to the battery 
terminals.
5.  Turn the key from “ON” to “OFF” 
three times in three-second in-
tervals to initialize the idle speed 
control system.
manently damage the battery.
The battery is located behind panel A. 
Remove the panel to access the bat-
tery. (See page 6-7.)
To charge the battery
Have a Yamaha dealer charge the 
battery as soon as possible if it seems 
to have discharged. Keep in mind that 
the battery tends to discharge more 
quickly if the vehicle is equipped with 
optional electrical accessories.
ECA16521
NOTICETo charge a VRLA (Valve Regu-
lated Lead Acid) battery, a special 
(constant-voltage) battery charger 
is required. Using a conventional 
battery charger will damage the 
battery.
To store the battery
1.  If the vehicle will not be used for 
more than one month, remove 
the battery, fully charge it, and 
then place it in a cool, dry place. 
always shield your eyes when 
working near batteries. In case 
of contact, administer the fol-
lowing FIRST AID.
•  EXTERNAL: Flush with plen-
ty of water.
•  INTERNAL: Drink large quan-
tities of water or milk and im-
mediately call a physician.
•  EYES: Flush with water for 
15 minutes and seek prompt 
medical attention.
● 
Batteries produce explosive 
hydrogen gas. Therefore, keep 
sparks,   ames, cigarettes, etc., 
away from the battery and pro-
vide suf  cient ventilation when 
charging it in an enclosed 
space.
● 
KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF 
CHILDREN.
ECA10620
NOTICENever attempt to remove the bat-
tery cell seals, as this would per-
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1
1. Spare fuse2.  Remove the blown fuse, and then 
install a new fuse of the specifi ed 
amperage. WARNING! Do not 
use a fuse of a higher amper-
age rating than recommended 
to avoid causing extensive 
damage to the electrical sys-
tem and possibly a   re.
[EWA15131] EAUT3750
Replacing the fuses
1
1. Fuse boxThe fuse box is located beside the 
battery compartment behind panel A. 
(See page 6-7.)
If a fuse is blown, replace it as follows.
1.  Turn the key to “OFF” and turn off 
the electrical circuit in question.
ECA16530
NOTICEAlways keep the battery charged. 
Storing a discharged battery can 
cause permanent battery damage.
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EAUT3660
Replacing a headlight bulbThis model is equipped with a halo-
gen bulb headlight. If a headlight bulb 
burns out, replace it as follows.
ECA10650
NOTICETake care not to damage the follow-
ing parts:● 
Headlight bulb
Do not touch the glass part of the 
headlight bulb to keep it free from 
oil, otherwise the transparency 
of the glass, the luminosity of the 
bulb, and the bulb life will be ad-
versely affected. Thoroughly clean 
off any dirt and   ngerprints on the 
headlight bulb using a cloth moist-
ened with alcohol or thinner.
● 
Headlight lens
•  Do not affix any type of 
tinted film or stickers to the 
headlight lens.
•  Do not use a headlight bulb 
of a wattage higher than 
speci  ed.1.  Remove cowling A together with 
the headlight unit. (See page 
6-7.)
2.  Remove the bulb cover, and then 
disconnect the headlight coupler.
1
1.  Headlight bulb cover
1
2
3
1. Headlight coupler
2.  Headlight bulb holder
3. Headlight bulb
Speci  ed fuses:
Main fuse:
20 A
Ignition fuse:
7.5 A
Signaling system fuse:
15 A
Headlight fuse:
15 A
Backup fuse:
7.5 ATIPAfter removing and installing the main 
fuse, be sure to turn the main switch 
from “ON” to “OFF” three times in 
three-second intervals to initialize the 
idle speed control system.
3.  Turn the key to “ON” and turn on 
the electrical circuit in question to 
check if the device operates.
4.  If the fuse immediately blows 
again, have a Yamaha dealer 
check the electrical system.
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PERIODIC MAINTENANCE AND ADJUSTMENT
EAU24181
Tail/brake light
1
1. Tail/brake lightThis model is equipped with an LED-
type tail/brake light.
If the tail/brake light does not come 
on, have a Yamaha dealer check it.
EAUT3650
Replacing a front turn signal 
light bulbIf a front turn signal light burns out, re-
place it as follows.
1.  Remove cowling A. (See page 
6-7.)
2.  Remove the socket (together with 
the bulb) by turning it counter-
clockwise.
1
1.  Turn signal light bulb socket
3.  Unhook the headlight bulb holder, 
and then remove the burnt-out 
bulb.
4.  Place a new headlight bulb into 
position, and then secure it with 
the bulb holder.
5.  Connect the coupler, and then in-
stall the headlight bulb cover.
6.  Install the cowling together with 
the headlight unit.
7.  Have a Yamaha dealer adjust the 
headlight beam if necessary.
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PERIODIC MAINTENANCE AND ADJUSTMENT
EAUT3640
Replacing an auxiliary light 
bulbIf an auxiliary light bulb burns out, re-
place it as follows.
1.  Remove cowling A. (See page 
6-7.)
2.  Remove the socket (together with 
the bulb) by turning it counter-
clockwise.
1
1.  Auxiliary light bulb socket
1
1.  Auxiliary light bulb3.  Remove the burnt out bulb by 
pulling it out.
4.  Insert a new bulb into the socket.
5.  Install the socket (together with 
the bulb) by turning it clockwise.
6.  Install the cowling.
1
1.  Turn signal light bulb3.  Remove the burnt out bulb by 
pushing it in and turning it coun-
terclockwise.
4.  Insert a new bulb into the socket, 
push it in, and then turn it clock-
wise until it stops.
ECAU0080
NOTICEIf a turn signal light bulb of differ-
ent wattage than recommended is 
used, the turn signal light   ashing 
may be affected.
5.  Install the socket (together with 
the bulb) by turning it clockwise.
6.  Install the cowling.
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PERIODIC MAINTENANCE AND ADJUSTMENT
may be affected.
4.  Install the lens by installing the 
screw. 
NOTICE:
 Do not over-
tighten the screw, otherwise 
the lens may break.
[ECA11191]EAU24330
License plate light
1
1.  License plate lightIf the license plate light does not come 
on, have a Yamaha dealer check the 
electrical circuit or replace the bulb.
EAUT3670
Replacing a rear turn signal 
light bulb1.  Remove the turn signal lens by 
removing the screw.
1
1.  Rear turn signal light bulb2.  Remove the burnt-out bulb by 
pushing it in and turning it coun-
terclockwise.
3.  Insert a new bulb into the socket, 
push it in, and then turn it clock-
wise until it stops.
ECAU0080
NOTICEIf a turn signal light bulb of differ-
ent wattage than recommended is 
used, the turn signal light   ashing 
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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENTare no open flames or sparks in 
the area, including pilot lights from 
water heaters or furnaces. Gasoline 
or gasoline vapors can ignite or 
explode, causing severe injury or 
property damage.
EAU25881
TroubleshootingAlthough Yamaha scooters receive a 
thorough inspection before shipment 
from the factory, trouble may occur 
during operation. Any problem in the 
fuel, compression, or ignition systems, 
for example, can cause poor starting 
and loss of power.
The following troubleshooting charts 
represent quick and easy procedures 
for checking these vital systems your-
self. However, should your scooter 
require any repair, take it to a Yamaha 
dealer, whose skilled technicians have 
the necessary tools, experience, and 
know-how to service the scooter prop-
erly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look 
like Yamaha parts, but they are often 
inferior, have a shorter service life and 
can lead to expensive repair bills.
EWA15141
WARNING
When checking the fuel system, do 
not smoke, and make sure there 
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EAU42704
Troubleshooting chartsStarting problems or poor engine performance
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start. 
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over 
quickly.
The engine turns over 
slowly.
The battery is good.
DryWet
Operate the electric starter.
Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
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