2015 YAMAHA MT-125 fuel

INSTRUMENT AND CONTROL FUNCTIONS
3-9
3the UK only). Push the “INFO” button
to switch between these display set-
tings.
“AVE_ _._ km/L”: The average dis-
tance that can be traveled on 1.0 L
of fuel is shown.
“AVE_ _._ L/100 km”: The average
amount of fuel necessary to travel
100 km is shown.
“AVE_ _._ MPG” (for the UK only):
The average distance that can be
traveled on 1.0 Imp.gal of fuel is
shown.
To reset the average fuel consumption
display (mode “ODO” should be se-
lected), select it by pushing the “INFO”
button, and then push the “RESET”
button for two seconds.
TIPAfter resetting the average fuel con-
sumption display, “_ _._” is shown until
the vehicle has traveled 1 km (0.6 mi).
Average speed display
The average speed display shows your
average traveling speed since it was
last reset. It can be set to either “AVE
SPEED_ _._ km/h”, AVE SPEED __._
mph” (for the UK only, push the “INFO”
button to switch between these display
settings).
 “AVE SPEED_ _._ km/h”: Your av-
erage traveling speed in kilome-
ters per hour.
“AVE SPEED_ _._ mph” (for the
UK only): Your average traveling
speed in miles per hour.
To reset the average speed display
(mode “ODO” should be selected), se-
lect it by pushing the “INFO” button,
and then push the “RESET” button for
two seconds. The average speed dis-play will also reset automatically 4
hours after the key was last turned to
“OFF”.
Time tripmeter
The time tripmeter displays “_h _min”
(hours and minutes) the time that has
elapsed since the key was turned to
“ON” since the time tripmeter was last
reset.
To reset the time tripmeter display
(mode “ODO” should be selected), se-
lect it by pushing the “INFO” button,
and then push the “RESET” button for
two seconds. The time tripmeter will
automatically reset 4 hours after the
key was last turned to “OFF”.ZAUM1156
Lo
Hi
ZAUM1157
Lo
Hi
U5D7E4E0.book Page 9 Thursday, July 10, 2014 3:01 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-11
3Warning message function
The warning message function works
in conjunction with fuel meter, coolant
temperature meter, oil change indica-
tor, and low battery indicator by dis-
playing a corresponding warning
message. When two or more warning
messages occur, display shall be
changed as follows:
HIGH TEMP →LOW FUEL →LOW
BATT →OIL SERV
TIPPush the “INFO” button to switch be-
tween these display warning messag-
es.
Self-diagnosis device
This model is equipped with a self-di-
agnosis device for various electrical
circuits.
If a problem is detected in any of those
circuits, the engine trouble warning
light will come on and the display will
indicate an error code.
If the display indicates any error codes,
note the code number, and then have
a Yamaha dealer check the vehicle.NOTICE
ECA11591
If the display indicates an error
code, the vehicle should be checked
as soon as possible in order to avoid
engine damage.
EAU1234H
Handlebar switchesLeft
ZAUM1160
Lo
Hi
1. Error code displayZAUM1161
1/2
F TRIP
1/2
1
1. Pass switch Ž
2. Dimmer switch / Ž
3. Turn signal switch / Ž
4. Horn switch ŽZAUM1162
U5D7E4E0.book Page 11 Thursday, July 10, 2014 3:01 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-15
3
EAUM2082
Fuel tank capTo remove the fuel tank cap
1. Open the fuel tank cap lock cover.
2. Insert the key into the lock and
turn it 1/4 turn counterclockwise.
The lock will be released and the
fuel tank cap can be removed.
To install the fuel tank cap
1. Push the fuel tank cap into posi-
tion with the key inserted in the
lock.
2. Turn the key clockwise to the orig-
inal position, and then remove it.
3. Close the lock cover.
TIPThe fuel tank cap cannot be installed
unless the key is in the lock. In addi-
tion, the key cannot be removed if the
cap is not properly installed and
locked.
WARNING
EWA11142
Make sure that the fuel tank cap is
properly installed before riding.
Leaking fuel is a fire hazard.
1. Front wheel sensor rotor
2. Front wheel sensor
1. Rear wheel sensor rotor
2. Rear wheel sensorZAUM122712ZAUM122812
1. Fuel tank cap lock cover
2. Unlock.
U5D7E4E0.book Page 15 Thursday, July 10, 2014 3:01 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-16
3
EAU13213
FuelMake sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. Stop
filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately
wipe off spilled fuel with a clean,
dry, soft cloth, since fuel may
deteriorate painted surfaces or
plastic parts.
[ECA10072]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15152
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gasoline
by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAU54601
NOTICE
ECA11401
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.Your Yamaha engine has been de-
signed to use premium unleaded gas-
oline with a research octane number of
95 or higher. If knocking (or pinging)
occurs, use a gasoline of a different
1. Fuel tank filler tube
2. Maximum fuel level
Recommended fuel:
Premium unleaded gasoline (Gaso-
hol (E10) acceptable)
Fuel tank capacity:
11.5 L (3.04 US gal, 2.53 Imp.gal)
Fuel reserve amount (when the fuel
level warning light comes on):
3.0 L (0.79 US gal, 0.66 Imp.gal)
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INSTRUMENT AND CONTROL FUNCTIONS
3-17
3brand. Use of unleaded fuel will extend
spark plug life and reduce mainte-
nance costs.
Gasohol
There are two types of gasohol: gaso-
hol containing ethanol and that con-
taining methanol. Gasohol containing
ethanol can be used if the ethanol con-
tent does not exceed 10% (E10). Gas-
ohol containing methanol is not
recommended by Yamaha because it
can cause damage to the fuel system
or vehicle performance problems.
EAU13434
Catalytic converterThis model is equipped with a catalytic
converter in the exhaust system.
WARNING
EWA10863
The exhaust system is hot after op-
eration. To prevent a fire hazard or
burns:
Do not park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
Park the vehicle in a place
where pedestrians or children
are not likely to touch the hot
exhaust system.
Make sure that the exhaust sys-
tem has cooled down before
doing any maintenance work.
Do not allow the engine to idle
more than a few minutes. Long
idling can cause a build-up of
heat.
NOTICE
ECA10702
Use only unleaded gasoline. The use
of leaded gasoline will cause unre-
pairable damage to the catalytic
converter.
U5D7E4E0.book Page 17 Thursday, July 10, 2014 3:01 PM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-1
4
EAU15598
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in
this manual, have the vehicle inspected by a Yamaha dealer.Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel• Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.3-16
Engine oil• Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage.6-10
Coolant• Check coolant level in reservoir.
• If necessary, add recommended coolant to specified level.
• Check cooling system for leakage.6-13
Front brake• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add specified brake fluid to specified level.
• Check hydraulic system for leakage.6-21, 6-22
U5D7E4E0.book Page 1 Thursday, July 10, 2014 3:01 PM

OPERATION AND IMPORTANT RIDING POINTS
5-1
5
EAU15952
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10272
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accident
or injury.
EAU48021
TIPThis model is equipped with a lean an-
gle sensor to stop the engine in case of
a turnover. In this case, the multi-func-
tion display indicates error code 30,
but this is not a malfunction. Turn the
key to “OFF” and then to “ON” to clear
the error code. Failing to do so will pre-
vent the engine from starting even
though the engine will crank when
pushing the start switch.
EAUM3530
Starting the engineIn order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:
The transmission is in the neutral
position.
The transmission is in gear with
the clutch lever pulled and the
sidestand up.
See page 3-19 for more informa-
tion.
1. Turn the key to “ON” and make
sure that the engine stop switch is
set to “ ”.
The following warning lights and
indicator lights should come on for
a few seconds, then go off.
Neutral indicator light
Turn signal indicator light
High beam indicator light
Engine trouble warning light
Fuel level warning light
Tachometer high-rpm warn-
ing light
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OPERATION AND IMPORTANT RIDING POINTS
5-3
5
NOTICE
ECA10261
Even with the transmission in
the neutral position, do not
coast for long periods of time
with the engine off, and do not
tow the motorcycle for long dis-
tances. The transmission is
properly lubricated only when
the engine is running. Inade-
quate lubrication may damage
the transmission.
Always use the clutch while
changing gears to avoid dam-
aging the engine, transmission,
and drive train, which are not
designed to withstand the
shock of forced shifting.
EAU16811
Tips for reducing fuel con-
sumptionFuel consumption depends largely on
your riding style. Consider the follow-
ing tips to reduce fuel consumption:
Shift up swiftly, and avoid high en-
gine speeds during acceleration.
Do not rev the engine while shift-
ing down, and avoid high engine
speeds with no load on the en-
gine.
Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
EAU16831
Engine break-inThere is never a more important period
in the life of your engine than the period
between 0 and 1000 km (600 mi). For
this reason, you should read the fol-
lowing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1000 km (600 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that
might result in engine overheating
must be avoided.
EAU16983
0–500 km (0–300 mi)
Avoid prolonged operation above 6000
r/min.
After every hour of operation, stop the
engine, and then let it cool for five to
ten minutes.
Vary the engine speed from time to
time. Do not operate the engine at one
set throttle position.
U5D7E4E0.book Page 3 Thursday, July 10, 2014 3:01 PM