2015 YAMAHA MT-125 service

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

INSTRUMENT AND CONTROL FUNCTIONS
3-8
3 a warning message function
a self-diagnosis device
Push the “INFO” button to switch the
display between the average fuel con-
sumption mode “C Ave__._km/L” or “C
Ave __._ L/100 km”, the instantaneous
fuel consumption mode “C
INS__._km/L” or “C INS__._L/100
km” , the trip time mode “TRIP TIME _h
__min”, the average speed “AVE
SPEED/__km/h”, the oil service re-
minder “DIST SERV/__km” in the fol-
lowing order:
C Ave__._km/L → C Ave __._ L/100 km
→ C INS__._km/L → C INS__._L/100
km → TRIP TIME _h __min → AVE
SPEED/__km/h → DIST SERV/__km
For the UK only:
Push the “INFO” button to switch the
display between the average fuel con-
sumption mode “C Ave__._mpg”, the
instantaneous fuel consumption mode
“C INS__._mpg”, the trip time mode
“TRIP TIME _h __min”, the averagespeed “AVE SPEED/__mph”, the oil
service reminder “DIST SERV/__miles”
in the following order:
C Ave__._mpg → C INS__._mpg →
TRIP TIME _h __min → AVE
SPEED/__mph → DIST SERV/__miles
Instantaneous fuel consumption
display
The instantaneous fuel consumption
display can be set to either “km/L”,
“L/100 km” or “MPG” (for the UK only).
Push the “INFO” button to switch be-
tween these display settings.
“km/L”: The distance that can be
traveled on 1.0 L of fuel under the
current riding conditions is shown.“L/100 km”: The amount of fuel
necessary to travel 100 km under
the current riding conditions is
shown.
“MPG” (for the UK only): The dis-
tance that can be traveled on
1.0 Imp.gal of fuel under the cur-
rent riding conditions is shown.
TIPIf traveling at speeds under 10 km/h (6
mi/h), “_ _._” is displayed.Average fuel consumption display
The average fuel consumption display
shows the average fuel consumption
since it was last reset. The display can
be set to either “AVE_ _._ km/L”, “AVE_
_._ L/100 km” or “AVE_ _._ MPG” (for
ZAUM1154
km/L L/100km
Lo
Hi
ZAUM1155
km/L
Lo
Hi
L/100km
U5D7E4E0.book Page 8 Thursday, July 10, 2014 3:01 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-10
3 Oil change indicator “OIL”
This indicator flashes (message “OIL
SERV” will also appear) to indicate that
the engine oil should be changed. It will
come on at the initial 1000 km (600 mi)
service interval, 2000 km (1200 mi) af-
ter that, and every 3000 km thereafter.
After changing the engine oil, reset the
oil change indicator.
To reset the oil change indicator dis-
play (mode “ODO” should be select-
ed), push the “RESET” button for two
seconds until “OIL SERV” message
flashes and then push and hold the
“RESET” button for at least 15 sec-
onds. “DIST SERV” mode (oil service
reminder which shows the riding dis-
tance since last reset) will also be reset.
TIPIf the engine oil is changed before the
oil change indicator comes on (i.e. be-
fore the set oil service interval has been
reached), the indicator must be reset
for the next oil change to be indicated
at the correct time. To reset the oil
change indicator before the periodic oil
change interval has been reached, fol-
low the below procedure.
To reset the oil change indicator (mode
“ODO” should be selected), select
“DIST SERV” by pushing the “INFO”
button, and then push the “RESET”
button for two seconds until “DIST
SERV” mode flashes and then push
and hold the “RESET” button for at
least 15 seconds, “OIL SERV” mes-
sage will also be reset.
Low battery warning indicator “ ”
This indicator flashes (message “LOW
BATT” will also appear) when the bat-
tery voltage is under 10 volts.TIPIf the low battery indicator comes on
have a Yamaha dealer check the bat-
tery.
ZAUM1158
Lo
Hi
OIL
Lo
Hi
ZAUM1159
Lo
Hi
U5D7E4E0.book Page 10 Thursday, July 10, 2014 3:01 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-1
6
EAU17245
Periodic inspection, adjustment, and
lubrication will keep your vehicle in the
safest and most efficient condition
possible. Safety is an obligation of the
vehicle owner/operator. The most im-
portant points of vehicle inspection,
adjustment, and lubrication are ex-
plained on the following pages.
The intervals given in the periodic
maintenance charts should be simply
considered as a general guide under
normal riding conditions. However, de-
pending on the weather, terrain, geo-
graphical location, and individual use,
the maintenance intervals may need to
be shortened.
WARNING
EWA10322
Failure to properly maintain the vehi-
cle or performing maintenance ac-
tivities incorrectly may increase
your risk of injury or death during
service or while using the vehicle. If
you are not familiar with vehicle ser-
vice, have a Yamaha dealer perform
service.
WARNING
EWA15123
Turn off the engine when performing
maintenance unless otherwise
specified.
A running engine has moving
parts that can catch on body
parts or clothing and electrical
parts that can cause shocks or
fires.
Running the engine while ser-
vicing can lead to eye injury,
burns, fire, or carbon monoxide
poisoning – possibly leading to
death. See page 1-3 for more in-
formation about carbon monox-
ide.
WARNING
EWA15461
Brake discs, calipers, drums, and
linings can become very hot during
use. To avoid possible burns, let
brake components cool before
touching them.
EAU17303
Emission controls not only function to
ensure cleaner air, but are also vital to
proper engine operation and maximum
performance. In the following periodic
maintenance charts, the services relat-
ed to emissions control are grouped
separately. These services require
specialized data, knowledge, and
equipment. Maintenance, replace-
ment, or repair of the emission control
devices and systems may be per-
formed by any repair establishment or
individual that is certified (if applicable).
Yamaha dealers are trained and
equipped to perform these particular
services.
U5D7E4E0.book Page 1 Thursday, July 10, 2014 3:01 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-2
6
EAU17362
Owner’s tool kitThe owner’s tool kit is located under
the rider seat. (See page 3-18.)
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.TIPIf you do not have the tools or experi-
ence required for a particular job, have
a Yamaha dealer perform it for you.1. Owner’s tool kit (for ABS models)
2. Owner’s tool kitZAUM1232
2
U5D7E4E0.book Page 2 Thursday, July 10, 2014 3:01 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-7
6
EAUM2071
TIPThe air filter needs more frequent service if you are riding in unusually wet or dusty areas.
Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years change the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged.29*Throttle grip• Check operation.
• Check throttle grip free play, and
adjust if necessary.
• Lubricate cable and grip housing.√√√√√
30*Lights, signals and
switches• Check operation.
• Adjust headlight beam.√√√√√√ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING
ANNUAL
CHECK 1000 km
(600 mi)6000 km
(3500 mi)12000 km
(7000 mi)18000 km
(10500 mi)24000 km
(14000 mi)
U5D7E4E0.book Page 7 Thursday, July 10, 2014 3:01 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-25
6 occurring, keep the drive chain
slack within the specified limits.
[ECA10572]
TIPUsing the alignment marks on each
side of the swingarm, make sure that
both drive chain pullers are in the same
position for proper wheel alignment.3. Tighten the axle nut, then the lock-
nuts to their specified torques.
4. Make sure that the drive chain
pullers are in the same position,
the drive chain slack is correct,
and the drive chain moves
smoothly.
EAU23026
Cleaning and lubricating the
drive chainThe drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.NOTICE
ECA10584
The drive chain must be lubricated
after washing the motorcycle, riding
in the rain or riding in wet areas.1. Clean the drive chain with kero-
sene and a small soft brush.
NOTICE: To prevent damaging
the O-rings, do not clean the
drive chain with steam cleaners,
high-pressure washers or inap-
propriate solvents.
[ECA11122]
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant. NOTICE: Do not use
engine oil or any other lubri-
cants for the drive chain, as theymay contain substances that
could damage the O-rings.
[ECA11112]
Tightening torques:
Axle nut:
85 Nm (8.5 m·kgf, 61 ft·lbf)
Locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
U5D7E4E0.book Page 25 Thursday, July 10, 2014 3:01 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-36
6
EAU24351
Supporting the motorcycleSince this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motorcy-
cle is in a stable and level position be-
fore starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcy-
cle by using a motorcycle stand
or, if an additional motorcycle
stand is not available, by placing a
jack under the frame in front of the
rear wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placinga jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU44792
Front wheel (for non-ABS
models)
WARNING
EWA14841
For the ABS model, have a Yamaha
dealer remove and install the wheel.
EAU56531
To remove the front wheel
WARNING
EWA10822
To avoid injury, securely support the
vehicle so there is no danger of it
falling over.1. Loosen the front wheel axle pinch
bolts, then the wheel axle and the
brake caliper bolts.
U5D7E4E0.book Page 36 Thursday, July 10, 2014 3:01 PM