YAMAHA XMAX 125 2021 Owners Manual

Periodic maintenance an d a djustment
8-25
8
EAU23273
Checkin g the front forkThe condition and operation of the
front fork must be checked as follows
at the intervals specified in the periodic
maintenance and lubrication chart.
To check the con dition
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation 1. Place the vehicle on a level surfa- ce and hold it in an upright posi-
tion. WARNING! To avoi d injury,
securely support the vehicle so
there is no dan ger of it fallin g
over.
[EWA10752]
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.
NOTICE
ECA10591
If any damag e is foun d or the front
fork does not operate smoothly,
have a Yamaha d ealer check or re-
pair it.
EAU45512
Checkin g the steerin gWorn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the
periodic maintenance and lubrication
chart.
1. Place the vehicle on the center- stand. WARNING! To avoi d inju-
ry, securely support the vehicle
so there is no dan ger of it fallin g
over.
[EWA10752]
2. Hold the lower ends of the front fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steer-
ing.
ZAUM1964
ZAUM1965
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Periodic maintenance an d a djustment
8-26
8
EAU23292
Checkin g the wheel b earingsThe front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion 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.
EAU60691
BatteryThe battery is located behind panel A.
(See page 8-8.)
This 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.
WARNING
EWA10761
 Electrolyte is poisonous an d
d an gerous since it contains sul-
furic aci d, which causes severe b
urns. Avoi d any contact with
skin, eyes or clothin g an d al-
ways shiel d your eyes when
workin g near b atteries. In case
of contact, ad minister the fol-
lowin g FIRST AID.
EXTERNAL: Flush with plenty of water.
INTERNAL: Drink lar ge quan-
tities of water or milk an d im-
me diately call a physician.
EYES: Flush with water for 15 minutes an d seek prompt
me dical attention.
 Batteries pro duce explosive hy-
d ro gen gas. Therefore, keep
sparks, flames, ci garettes, etc.,
away from the battery an d pro-
vi de sufficient ventilation when
char gin g it in an enclose d
space.
 KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF
CHILDREN.
To char ge the battery
Have a Yamaha dealer charge the bat-
tery as soon as possible if it seems to
ha v e di s c ha r g e d. Ke e p in m in d t ha t t he
ZAUM1966
1. Negative battery lead (black)
2. Positive battery lead (red)
3. BatteryZAUM1967
3 3
3 2
21
1
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Periodic maintenance an d a djustment
8-27
8
battery tends to discharge more quick-
ly if the vehicle is equipped with op-
tional electrical accessories.
NOTICE
ECA16522
To char
ge a VRLA (Valve Re gulate d
Lea d Aci d) battery, a special (con-
stant-volta ge) battery char ger is re-
quire d. Usin g a conventional b attery
char ger will damag e 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.
NOTICE: When removin g the
b attery, be sure to turn the main
switch off, then disconnect the
ne gative lead before discon-
nectin g the positive lea d.
[ECA16304]
2. If the battery will be stored for
more than two months, check it at
least once a month and fully char-
ge it if necessary.
3. Fully charge the battery before installation. NOTICE: When in-
stallin g the battery, be sure to
turn the main switch off, then connect the positive lea
d b efore
connectin g the ne gative lea d.
[ECA16842]
4. After installation, make sure that
the battery leads are properly con-
nected to the battery terminals.NOTICE
ECA16531
Always keep the b attery charged .
Storin g a dischar ged battery can
cause permanent b attery damag e.
EAUN2581
Replacin g the fusesThe fuse boxes, which contain the fus-
es for the individual circuits, are locat-
ed under panel A. (See page 8-8.)1. Fuse box 1
2. Fuse box 2ZAUM19682 2
21
1
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Periodic maintenance an d a djustment
8-28
8
If a fuse is blown, replace it as follows.1. Turn off the electrical circuit in question, and then turn off the
main switch.
2. Remove the panel A. (See page 8-8.) 3. Remove the blown fuse, and then
install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a hi gher ampera ge
ratin g than recommen ded to
avoi d causin g extensive d am-
a g e to the electrical system an d
possi bly a fire.
[EWA15132]
4. Turn the main switch on, and then
turn on the electrical circuit in
question to check if the device op-
erates.
1. Smart key system fuse
2. Terminal fuse
3. Grip warmer fuse
4. Headlight fuse
5. ABS fuse
6. Ignition fuse
7. Spare fuse
8. Backup fuse
9. Fuel injection system fuse
10.Signaling system fuse
11.Main fuse
12.ABS motor fuse
13.ABS solenoid fuseZAUM1969
1
2
3
4
5
67
789101112
13
Specifie d fuses:
Main fuse:
30.0 A
Te r m i n a l f u s e 1 :
2.0 A
Grip warmer fuse: 7.5 A
Headlight fuse: 10.0 A
Signaling system fuse:
7.5 A
Ignition fuse: 10.0 A
Smart key system fuse: 2.0 A
ABS motor fuse:
30.0 A
Fuel injection system fuse: 7.5 A
ABS solenoid fuse: 15.0 A
ABS control unit fuse:
2.0 A
Backup fuse: 7.5 A
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Periodic maintenance an d a djustment
8-29
8
TIPIf the fuse immediately blows again,
have a Yamaha dealer check the elec-
trical system.5. Install the panel A. (See page 8-8.)
EAUN2261
Vehicle li ghtsThis model is equipped with LED lights
for headlights, auxiliary lights and
brake/tail light. If a light does not come
on, check the fuse and then have a
Yamaha dealer check the vehicle.NOTICE
ECA16581
Do not affix any type of tinted film or
stickers to the head lig ht lens.
EAU39881
Front turn si gnal li ghtIf a front turn signal light does not
come on, have a Yamaha dealer check
its electrical circuit or replace the bulb.
1. Headlight (high beam)
2. Headlight (low beam)
3. Auxiliary lightZAUM1970
2 2
2
3
33 3
31
1
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Periodic maintenance an d a djustment
8-30
8
EAUT1331
Rear turn si gnal li ght bul bIf a rear turn signal light does not come
on, have a Yamaha dealer check the
electrical circuit or replace the bulb.
EAU78560
Replacin g the license plate
li g ht bul b1. Remove the license plate light unit
by removing the bolts and plate,
and then remove the license plate
light bulb socket (together with the
bulb) by pulling it out.
2. Remove the burnt-out bulb by pulling it out. 3. Insert a new bulb into the socket.
4. Install the socket (together with
the bulb) by pushing it in, and then
install the license plate light unit by
installing the plate and bolts.1. License plate light unit
2. Bolt
3. Nut
4. License plate light bulb socketZAUM1971
2 2
2
4
4
1
1
3
3
1. License plate light bulbZAUM1972
1 1
1
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Periodic maintenance an d a djustment
8-31
8
EAU60701
Trou bleshootin gAlthough Yamaha vehicles 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 vehicle re-
quire any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the vehicle 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.
WARNING
EWA15142
When checkin g the fuel system, d o
not smoke, an d make sure there are
no open flames or sparks in the ar-
ea, inclu din g pilot li ghts from water heaters or furnaces. Gasoline or
g
asoline vapors can i gnite or ex-
plo de, causin g severe injury or prop-
erty damag e.
EAU76551
Smart key system trou bleshootin g
Please check the following items when
the smart key system does not work.  Is the smart key turned on? (See
page 3-5.)
 Is the smart key battery dis-
charged? (See page 3-6.)
 Is the smart key battery installed
correctly? (See page 3-6.)
 Is the smart key being used in a lo-
cation with strong radio waves or
other electromagnetic noise? (See
page 3-1.)
 Are you using the smart key that is
registered to the vehicle?
 Is the vehicle battery discharged?
When the vehicle battery is dis-
charged, the smart key system will
not operate. Please have the vehi-
cle battery charged or replaced.
(See page 8-26.) If the smart key system does not work
after checking the above items, have a
Yamaha dealer check the smart key
system.
TIPSee Emergency mode on page 8-34
for information on starting the engine
without the smart key.
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Periodic maintenance an d a djustment
8-32
8
EAU86350
Trou bleshootin g chart
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the battery.
Supply fuel.
The engine does not start.
Check the battery.
Try starting the engine.4. Compression
There is compression.
There is no compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.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(s). Have a Yamaha dealer check the vehicle.
The engine does not start.
Check the compression.
Operate the electric starter.2. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.
DryWet
Try starting the engine.
Check the battery lead connections,
and charge the battery if necessary.
The engine does not start.
Check the ignition.
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Periodic maintenance an d a djustment
8-33
8
EAU86420
En gine overheatin g
WARNING
EWAT1041
Do not remove the ra diator cap when the en gine an d ra diator are hot. Scal din g hot flui d an d steam may be
b lown out un der pressure, which coul d cause serious injury. Be sure to wait until the en gine has coole d.
 Place a thick ra g, like a towel, over the ra diator cap, an d then slowly rotate the cap counterclockwise to the
d etent to allow any resi dual pressure to escape. When the hissin g soun d has stoppe d, press down on the cap
while turnin g it counterclockwise, an d then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
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Periodic maintenance an d a djustment
8-34
8
EAU76561
Emer gency mo de When the smart key is lost or dam-
aged, or its battery has discharged, the
vehicle can still be turned on and the
engine started. You will need the smart
key system identification number.
To operate the vehicle in emer gency
mo de
1. Stop the vehicle in a safe place and turn the main switch to “OFF”.
2. Push the main switch knob for 5 seconds until the smart key sys-
tem indicator light flashes once,
then release it. Repeat two more
times. The smart key system indi-
cator light will come on for three
seconds to indicate the transition
to emergency mode. 3. After the smart key system indica-
tor light goes off, input the identifi-
cation number as follows. 4. Inputting the identification number
is done by counting the number of
flashes of the smart key system in-
dicator light.
For example, if the identification
number is 123456:
Push and hold the knob.
↓
The smart key system indicator
light will start to flash.
↓
Release the knob after the smart
key system indicator light flashes
once.
↓
The first digit of the identification
number has been set as “1”.
↓
Push and hold the knob again.
↓
1. Smart key system indicator light “ ”
1. Identification number card
2. Identification numberZAUM1884
1
868588
1
2
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