light YAMAHA MT-125 2015 Owners Manual

TABLE OF CONTENTSSAFETY INFORMATION.................. 1-1
DESCRIPTION.................................. 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
INSTRUMENT AND CONTROL
FUNCTIONS...................................... 3-1
Main switch/steering lock............... 3-1
Indicator lights and warning
lights............................................ 3-2
Multi-function meter unit ................ 3-4
Handlebar switches ...................... 3-11
Clutch lever .................................. 3-13
Shift pedal .................................... 3-13
Brake lever.................................... 3-13
Brake pedal .................................. 3-14
ABS (for ABS models) .................. 3-14
Fuel tank cap ................................ 3-15
Fuel ............................................... 3-16
Catalytic converter ....................... 3-17
Rider seat ..................................... 3-18
Sidestand ..................................... 3-18
Ignition circuit cut-off system ....... 3-19FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS................................ 5-1
Starting the engine .......................... 5-1
Shifting ............................................ 5-2
Tips for reducing fuel
consumption ................................ 5-3
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 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 cowlings... 6-8
Checking the spark plug ................. 6-9
Engine oil and oil filter element ..... 6-10
Coolant.......................................... 6-13
Replacing the air filter element
and cleaning the check hose..... 6-14
Checking the engine idling
speed ......................................... 6-15
Adjusting the throttle grip free
play ............................................ 6-15
Valve clearance ............................. 6-16
Tires .............................................. 6-16Cast wheels .................................. 6-19
Adjusting the clutch lever free
play ............................................ 6-19
Checking the front brake lever
free play..................................... 6-20
Adjusting the brake pedal free
play ............................................ 6-20
Brake light switches ..................... 6-21
Checking the front and rear brake
pads .......................................... 6-21
Checking the brake fluid level ...... 6-22
Changing the brake fluid .............. 6-23
Drive chain slack........................... 6-24
Cleaning and lubricating the drive
chain.......................................... 6-25
Checking and lubricating the
cables ........................................ 6-26
Checking and lubricating the
throttle grip and cable ............... 6-26
Checking and lubricating the
brake and clutch levers ............. 6-26
Checking and lubricating the
brake pedal ............................... 6-27
Checking and lubricating the
sidestand................................... 6-27
Lubricating the swingarm
pivots......................................... 6-28
Checking the front fork ................. 6-28
Checking the steering................... 6-29
Checking the wheel bearings ....... 6-29
Battery .......................................... 6-30U5D7E4E0.book Page 1 Thursday, July 10, 2014 3:01 PM

TABLE OF CONTENTS
Replacing the fuses .......................6-31
Replacing the headlight bulb.........6-33
Auxiliary light .................................6-34
Tail/brake light ...............................6-34
Replacing a turn signal light
bulb ............................................6-35
Replacing the license plate light
bulb ............................................6-35
Supporting the motorcycle............6-36
Front wheel (for non-ABS
models) ......................................6-36
Rear wheel (for non-ABS
models) ......................................6-38
Troubleshooting ............................6-40
Troubleshooting charts .................6-41
MOTORCYCLE CARE AND
STORAGE..........................................7-1
Matte color caution .........................7-1
Care .................................................7-1
Storage ............................................7-3
SPECIFICATIONS..............................8-1
CONSUMER INFORMATION............9-1
Identification numbers .....................9-1
INDEX...............................................10-1
U5D7E4E0.book Page 2 Thursday, July 10, 2014 3:01 PM

SAFETY INFORMATION
1-4
1 tents, can create unstable han-
dling or a slow steering re-
sponse.
This vehicle is not designed to
pull a trailer or to be attached to
a sidecar.
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, and
Modifications
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
U5D7E4E0.book Page 4 Thursday, July 10, 2014 3:01 PM

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 and 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. Refer to page
6-16 for tire specifications and more in-
formation on replacing your tires.
Transporting 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.
Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to pre-
vent movement.
Shift the transmission in gear (for
models with a manual transmis-
sion).
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.
U5D7E4E0.book Page 5 Thursday, July 10, 2014 3:01 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
EAU10462
Main switch/steering lockThe main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU36871
ON
All electrical circuits are supplied with
power, the meter lighting, taillight, li-
cense plate light and auxiliary lights
come on, and the engine can be start-
ed. 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”,
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 moving.
Otherwise the electrical systems will
be switched off, which may result in
loss of control or an accident.
EAU10693
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. Push the key in from the “OFF”
position, and then turn it to
“LOCK” while still pushing it.
3. Remove the key.1. Push.
2. Turn.12
U5D7E4E0.book Page 1 Thursday, July 10, 2014 3:01 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-2
3 To unlock the steering
Push the key into the main switch, and
then turn it to “OFF” while still pushing
it.
EAU49396
Indicator lights and warning
lights
EAU11021
Turn signal indicator light “ ”
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
EAU11061
Neutral indicator light “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU11081
High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11341
Fuel level warning light “ ”
This warning light comes on when the
fuel level drops below approximately
3.0 L (0.79 US gal, 0.66 Imp.gal). When
this occurs, refuel as soon as possible.
The electrical circuit of the warning
light can be checked according to the
following procedure.
1. Turn the key to “ON”.
2. If the warning light does not come
on, have a Yamaha dealer check
the electrical circuit.
1. Push.
2. Turn.12
1. Turn signal indicator light Ž
2. Neutral indicator light Ž
3. High beam indicator light Ž
4. Tachometer high-rpm warning light
5. Fuel level warning light Ž
6. Engine trouble warning light Ž
7. Anti-lock Brake System (ABS) warning
light Ž (for ABS models)ZAUM1226
SELECT
RESETkm/L/100kmMPG
km/h
MPH
Lo
Hi
1/2ODO
FTRIP12
x1000r/min
OILOIL
123
5
4
6
7
ABS
U5D7E4E0.book Page 2 Thursday, July 10, 2014 3:01 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
EAUT1935
Engine trouble warning light “ ”
This warning light flashes or stays on if
an electrical circuit monitoring the en-
gine is not working correctly. If this oc-
curs, 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.
EAU58530
ABS warning light “ ” (for ABS
models)
In normal operation, the ABS warning
light comes on when the key is turned
to “ON”, and goes off after traveling at
a speed of 10 km/h (6 mi/h) or higher.
If the ABS warning light:
does not come on when the key is
turned to “ON”
comes on or flashes while ridingdoes not go off after traveling at a
speed of 10 km/h (6 mi/h) or high-
er
The ABS may not work correctly. If any
of the above occurs, have a Yamaha
dealer check the system as soon as
possible. (See page 3-14 for an expla-
nation of the ABS.)
WARNING
EWA16041
If the ABS warning light does not go
off after traveling at a speed of 10
km/h (6 mi/h) or higher, or if the
warning light comes on or flashes
while riding, the brake system re-
verts to conventional braking. If ei-
ther of the above occurs, or if the
warning light does not come on at
all, use extra caution to avoid possi-
ble wheel lock during emergency
braking. Have a Yamaha dealer
check the brake system and electri-
cal circuits as soon as possible.
EAUM3440
Tachometer high-rpm warning light
This light flashes at 9500 r/min to warn
you that the engine speed is about to
enter the high-rpm zone. Once the en-gine speed reaches 10000 r/min, this
light will come on to warn you that it is
necessary to shift up to avoid engine
damage.
To activate or deactivate the tachome-
ter high-rpm warning light, hold the
“INFO” button pushed, turn the key to
“ON”, and when the tachometer high-
rpm warning light starts flashing, press
the “SELECT” button.
TIPWhen activating or deactivating the
warning light the function, after press-
ing the “SELECT” button, the light will
come on to indicate that the function is
activated or the light will go off to indi-
cate that the function is deactivated.
ABS
U5D7E4E0.book Page 3 Thursday, July 10, 2014 3:01 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-5
3ton to switch between kilometers
and miles and then press the “SE-
LECT” button for two seconds to
confirm the setting.
Tachometer
The tachometer allows the rider to
monitor the engine speed and keep it
within the ideal power range.
When the key is turned to “ON”, the ta-
chometer will sweep across the r/min
range and then return to zero r/min in
order to test the electrical circuit.NOTICE
ECAM1150
Do not operate the engine in the ta-
chometer high-rpm zone.High-rpm zone: 10000 r/min and
above
Clock
The clock displays when the key is
turned to “ON”.
To set the clock1. Turn the key to “ON”.
2. Push the “SELECT” button for at
least two seconds.
3. When the hour digits start flash-
ing, use the “RESET” button to set
the hours.
4. Push the “SELECT” button , and
the minute digits will start flashing.
5. Use the “RESET” button to set the
minutes.6. Push the “SELECT” button and
then release it to start the clock.
TIPWhen setting the hours and minutes,
push the “RESET” button briefly to in-
crease the increment value one by one,
or push and hold the button to increase
the increment value continuously.Fuel meter
The fuel meter indicates the amount of
fuel in the fuel tank. The display seg-
ments of the fuel meter disappear to-
wards “E” (Empty) as the fuel level
1. Tachometer
2. High-rpm zoneZAUM1147
km/h
x1000r/min
1
2
1. ClockZAUM1148
1/2
ODO
TRIP1
1
1. Fuel meter
2. Fuel level warning light Ž
3. Fuel reserve tripmeter
4. Information displayZAUM1149
km/h
Lo
Hi
1/2
FTRIP
x1000r/min
2
13
4
U5D7E4E0.book Page 5 Thursday, July 10, 2014 3:01 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-6
3 decreases. When the fuel level be-
comes low, the last segment will flash,
(“LOW FUEL” message will also ap-
pear) and the fuel level warning
light “ ” will come on. Refuel as soon
as possible.
TIPThis fuel meter is equipped with a self-
diagnosis system. If a problem is de-
tected in the fuel meter electrical cir-
cuit, the display segments of the fuel
meter will flash eight times, and then
go off for 3 seconds repeatedly. If this
occurs, have a Yamaha dealer check
the electrical circuit.
Coolant temperature meter
With the key in the “ON” position, the
coolant temperature meter indicates
the temperature of the coolant. The
coolant temperature varies with
changes in the weather and engine
load. When the coolant temperature is
near the maximum limit, the second
segment from the top will flash. If the 2
top segments and “ ” start flashing
(“HIGH TEMP” message will also ap-
pear), stop the vehicle and let the en-
gine cool.
NOTICE
ECA10022
Do not continue to operate the en-
gine if it is overheating.TIPFor radiator-fan-equipped vehi-
cles, the radiator fan(s) automati-
cally switch on or off according to
the coolant temperature in the ra-
diator.
If the engine overheats, see page
6-42 for further instruction.Odometer and tripmeter display
The odometer and tripmeter display is
equipped with the following:
1. Coolant temperature warning indicator “ ”
2. Information display
3. Coolant temperature meterZAUM1150
Lo
Hi
1
3
2
1. Odometer/tripmeter/fuel reserve tripmeterZAUM1151
1/2
TRIP1
1
U5D7E4E0.book Page 6 Thursday, July 10, 2014 3:01 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-7
3two tripmeters (which shows the
distance traveled since last set to
zero)
a fuel reserve tripmeter (which
shows the distance traveled since
the fuel level warning light came
on)
Pushing the “SELECT” button switch-
es the display between the odometer
mode and the various tripmeter modes
in the following order:
ODO (odometer) → TRIP 1 (tripmeter)
→ TRIP 2 (tripmeter) → ODO (odome-
ter)
When approximately 3.0 L (0.79 US
gal, 0.66 Imp.gal) of fuel remains in the
fuel tank, the display will automaticallychange to the fuel reserve tripmeter
mode “F TRIP” and start counting the
distance traveled from that point. In
that case, pushing the “SELECT” but-
ton switches the display between the
various tripmeter and odometer modes
in the following order:
ODO → TRIP 1 → TRIP 2 → F TRIP (fu-
el reserve tripmeter) → ODO
To reset a tripmeter, select it by push-
ing the “SELECT” button until “TRIP 1,
TRIP 2, F TRIP” is displayed. While
“TRIP 1, TRIP 2, F TRIP” is displayed,
push the “RESET” button for two sec-
onds. The fuel reserve tripmeter will re-
set automatically and disappear after
you have refueled and turned the key
to “OFF”.Multi-function display
The multi-function display is equipped
with the following:
a fuel consumption display (aver-
age and instantaneous consump-
tion functions)
an average speed display (which
shows the average speed since
last set to zero)
a time tripmeter (which shows the
elapsed riding time since last set
to zero)
 an oil change indicator with an oil
service reminder (which shows the
riding distance since last set to ze-
ro)
a low battery voltage warning indi-
cator
1. Odometer/tripmeter/fuel reserve tripmeterZAUM1152
1/2
F TRIP
1
1. Multi-function displayZAUM1153
km/L
Lo
Hi
OIL
1
U5D7E4E0.book Page 7 Thursday, July 10, 2014 3:01 PM