YAMAHA XSR 125 2021 User Guide

Safety information
1-4
1
tents, can create unstable han-
dling or a slow steering re-
sponse.
 This vehicle is not desi gne d to
pull a trailer or to be attached to
a si decar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail- able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection
to Yamaha manufacture parts and ac-
cessories or offer other modifications
for Yamaha vehicles. Yamaha is not in
a position to test the products that
these aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer. Aftermarket Parts, Accessories, an
d
Mo difications
While you may find aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accesso-
ries or modifications are not suitable
because of potential safety hazards to
you or others. Installing aftermarket
products or having other modifications
performed to your vehicle that change
any of the vehicle’s design or operation
characteristics can put you and others
at greater risk of serious injury or
death. You are responsible for injuries
related to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under “Load-
ing” when mounting accessories.  Never install accessories or carry
cargo that would impair the per-
formance of your motorcycle.
Carefully inspect the accessory
before using it to make sure that it
does not in any way reduce
ground clearance or cornering
clearance, limit suspension travel, steering travel or control opera-
tion, or obscure lights or reflec-
tors.
• Accessories fitted to the han- dlebar or the front fork area can
create instability due to improp-
er weight distribution or aerody-
namic changes. If accessories
are added to the handlebar or
front fork area, they must be as
lightweight as possible and
should be kept to a minimum.
• Bulky or large accessories may seriously affect the stability of
the motorcycle due to aerody-
namic effects. Wind may at-
tempt to lift the motorcycle, or
the motorcycle may become
unstable in cross winds. These
accessories may also cause in-
stability when passing or being
passed by large vehicles.
• Certain accessories can dis- place the operator from his or
her normal riding position. This
improper position limits the
freedom of movement of the
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Safety information
1-5
1operator and may limit control
ability, therefore, such accesso-
ries are not recommended.
 Use caution when adding electri-
cal accessories. If electrical ac-
cessories exceed the capacity of
the motorcycle’s electrical sys-
tem, an electric failure could re-
sult, which could cause a
dangerous loss of lights or engine
power.
Aftermarket Tires an d Rims
The tires and rims that came with your
motorcycle were designed to match
the performance capabilities and to
provide the best combination of han-
dling, braking, and comfort. Other
tires, rims, sizes, and combinations
may not be appropriate. See page 6-16
for tire specifications and for informa-
tion on servicing and replacing your
tires.
Transportin g the Motorcycle
Be sure to observe following instruc-
tions before transporting the motorcy-
cle in another vehicle. 
Remove all loose items from the
motorcycle.
 Check that the fuel cock (if
equipped) is in the off position and
that there are no fuel leaks.
 Shift the transmission into gear
(for models with a manual trans-
mission).
 Secure the motorcycle with tie-
downs or suitable straps that are
attached to solid parts of the mo-
torcycle, such as the frame or up-
per front fork triple clamp (and not,
for example, to rubber-mounted
handlebars or turn signals, or
parts that could break). Choose
the location for the straps carefully
so the straps will not rub against
painted surfaces during transport.
 The suspension should be com-
pressed somewhat by the tie-
downs, if possible, so that the mo-
torcycle will not bounce exces-
sively during transport.
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Description
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2
EAU10411
Left view
123456789
10
1. Fuel tank cap (page 3-13)
2. Seat lock (page 3-16)
3. Battery (page 6-30)
4. Fuses (page 6-31)
5. Tool kit (page 6-2)
6. Sidestand (page 3-17)
7. Air filter check hose
8. Shift pedal (page 3-11) 9. Idle adjusting screw (page 6-15)
10.Coolant reservoir (page 6-13)
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Description
2-2
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EAU10421
Right view
12 34
5678
1. License plate light (page 6-33)
2. Rear turn signal lights (page 6-32)
3. Front brake fluid reservoir (page 6-22)
4. Front turn signal light (page 6-32)
5. Engine oil filter element (page 6-10)
6. Dipstick (page 6-10)
7. Brake pedal (page 3-11)
8. Rear brake fluid reservoir (page 6-22)UBFGE0E0.book Page 2 Friday, April 9, 2021 9:25 AM

Description
2-3
2
EAU10431
Controls and instruments
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4
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6
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1. Clutch lever (page 3-10)
2. Left handlebar switches (page 3-9)
3. Multi-function meter unit (page 3-4)
4. Main switch/steering lock (page 3-1)
5. Right handlebar switches (page 3-9)
6. Throttle grip (page 6-15)
7. Brake lever (page 3-11)
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Instrument and control functions
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3
EAU10462
Main switch/steerin g lockThe main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU85050
ON
All electrical circuits are supplied with
power and the vehicle lights are turned
on. The engine can be started. The key
cannot be removed.TIP To prevent battery discharge, do
not leave the key in the on position
without the engine running.
 The headlight comes on automat-
ically when the engine is started. 
The headlight will stay on until the
key is turned to “OFF”, even if the
engine stalls.
EAU10662
OFF
All electrical systems are off. The key
can be removed.
WARNING
EWA10062
Never turn the key to “OFF” or
“LOCK” while the vehicle is movin g.
Otherwise the electrical systems will
b e switche d off, which may result in
loss of control or an acci dent.
EAU10696
LOCK
The steering is locked and all electrical
systems are off. The key can be re-
moved. To lock the steering
1. Turn the handlebars all the way to
the left or right.
2. With the key in the “OFF” position, push the key in and turn it to
“LOCK”.
3. Remove the key.TIPIf the steering will not lock, try turning
the handlebars back to the right or left
slightly.1. Push.
2. Turn.12
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Instrument and control functions
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3
To unlock the steering
From the “LOCK” position, push the
key and turn it to “OFF”.
EAU4939P
In
dicator li ghts an d warnin g
lig hts
EAUM4390
Turn si gnal in dicator li ght “ ”
This indicator light flashes when a turn
signal light is flashing.
EAU88300
Neutral in dicator li ght “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU88310
Hi gh beam in dicator li ght “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAUM4410
Coolant temperature warnin g
li g ht “ ”
This warning light comes on when the
engine is overheating. If this occurs,
stop the engine immediately and allow
the engine to cool. (See page 6-36.)
For vehicles with a radiator fan, the ra-
diator fan(s) automatically switch on or
off according to the coolant tempera-
ture.TIPWhen the vehicle is turned on, the light
will come on for a few seconds, and
then go off. If the light does not come
on, or if the light remains on, have a
Yamaha dealer check the vehicle.NOTICE
ECA10022
Do not continue to operate the en-
g ine if it is overheatin g.
1. Push.
2. Turn.12
1. ABS warning light “ ”
2. High beam indicator light “ ”
3. Coolant temperature warning light “ ”
4. Malfunction indicator light “ ”
5. Neutral indicator light “ ”
6. Turn signal indicator light “ ”ZAUM2012
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2
3
4
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6
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Instrument and control functions
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3
EAU88331
Malfunction in dicator li ght
(MIL) “ ”
This light comes on or flashes if a prob-
lem is detected in the engine or other
vehicle control system. If this occurs,
have a Yamaha dealer check the on-
board diagnostic system. The electri-
cal circuit of the warning light can be
checked by turning the vehicle power
on. The light should come on for a few
seconds, and then go off. If the light
does not come on initially when the ve-
hicle power is turned on, or if the light
remains on, have a Yamaha dealer
check the vehicle.NOTICE
ECA26820
If the MIL starts flashin g, re duce en-
g ine speed to prevent exhaust sys-
tem damag e.TIPThe engine is sensitively monitored by
the on-board diagnostic system to de-
tect deterioration or malfunction of the
emission control system. Therefore the
MIL may come on or flash due to vehi-
cle modifications, lack of maintenance, or excessive/improper use of the mo-
torcycle. To prevent this, observe
these precautions.
 Do not attempt to modify the soft-
ware of the engine control unit.
 Do not add any electrical acces-
sories that interfere with engine
control.
 Do not use aftermarket accesso-
ries or parts such as suspension,
spark plugs, injectors, exhaust
system, etc.
 Do not change the drivetrain
specifications (chain, sprockets,
wheels, tires, etc.).
 Do not remove or alter the O2 sen-
sor, air induction system, or ex-
haust parts (catalysts or EXUP,
etc.).
 Maintain the drive chain properly.
 Maintain correct tire pressure.
 Maintain proper brake pedal
height to prevent rear brake from
dragging.
 Do not operate the vehicle in an
extreme manner. For example, re-
peated or excessive opening and closing of the throttle, racing,
burnouts, wheelies, extended
half-clutch use, etc.
EAU88342
ABS warnin
g li ght “ ”
In normal operation, the ABS warning
light comes on when the vehicle is
turned on, and goes off after traveling
at a speed of 10 km/h (6 mi/h) or high-
er.TIPIf the warning light does not work as
described above, or if the warning light
comes on while riding, the ABS may
not work correctly. Have a Yamaha
dealer check the vehicle as soon as
possible.
WARNING
EWA16043
If the ABS warnin g li ght does not
turn off after reachin g 10 km/h (6
mi/h), or if the warnin g li ght comes
on while ri din g:
 Use extra caution to avoi d pos-
si ble wheel lock d uring emer-
g ency brakin g.
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Instrument and control functions
3-4
3

Have a Yamaha dealer check
the vehicle as soon as possi ble.
EAU87111
Multi-function meter unitThe multi-function meter unit is also
equipped with a backlight setting mo-
de.
WARNING
EWA12423
Be sure to stop the vehicle before
makin g any settin g chan ges to the
multi-function meter unit. Chan gin g settin
gs while ri din g can d istract the
operator an d increase the risk of an
acci dent.
EAU89230
Switchin g the display units
The display units can be switched be-
tween kilometers and miles.
To switch the display units1. Turn the vehicle off.
2. While pushing the “SEL” switch, turn the vehicle on.
3. Continue to push the “SEL” switch for at least 5 seconds.
EAU86831
Speed ometer
1. Transmission gear display
2. VVA (variable valve actuation) indicator
3. “RESET” button
4. Multi-function display
5. Fuel meter
6. “SELECT” button
7. Speedometer
8. TachometerZAUM2013
1
3
4
5
6
78
2
1. SpeedometerZAUM2014
1
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Instrument and control functions
3-5
3 The speedometer shows the vehicle’s
traveling speed.
EAU87170
Tachometer
The tachometer allows the rider to
monitor the engine speed and keep it
within the ideal power range.NOTICE
ECA10032
Do not operate the en
gine in the ta-
chometer red zone.
Re d zone: 11000 r/min an d a bove
EAU86841
Fuel meter
The fuel meter indicates the amount of
fuel in the fuel tank. The display seg-
ments of the fuel meter disappear from
“F” (full) towards “E” (empty) as the fuel
level decreases. When approximately
3.0 L (0.79 US gal, 0.66 Imp.gal) of fuel
remains, the last segment starts flash-
ing. Refuel as soon as possible.TIPIf a problem is detected in the electrical
circuit, the fuel level segments will flash
repeatedly. If this occurs, have a
Yamaha dealer check the vehicle.
EAU87370
VVA in dicator
This model is equipped with variable
valve actuation (VVA) for good fuel
economy and acceleration in both the
low-speed and high-speed ranges.
The VVA indicator comes on when the
variable valve actuation system has
switched to the high-speed range.
1. Tachometer
2. Red zoneZAUM2015
1 2
1. Fuel meterZAUM2016
1
1. VVA (variable valve actuation) indicatorZAUM2017
1
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