fuel reserve YAMAHA MT-125 2015 Owners Manual

INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAUM3422
Multi-function meter unit
WARNING
EWA12423
Be sure to stop the vehicle before
making any setting changes to the
multi-function meter unit. Changing
settings while riding can distract the
operator and increase the risk of an
accident.The multi-function meter unit is
equipped with the following:
a speedometera tachometer
a clock
a fuel meter
a coolant temperature meter
an odometer and tripmeter display
a multi-function display
a self-diagnosis device
TIPBe sure to turn the key to “ON” be-
fore using the “SELECT”, “RE-
SET” and “INFO” buttons.
When the key is turned to “ON”, all
display segments of the multi-
function meter unit will momen-
tarily appear in order to test the
electrical circuit. The speedome-
ter, tachometer, fuel meter and
coolant temperature meter will
then perform a display check and
a welcome message will scroll
across the multi-function display.
For the U.K. only: To switch the
speedometer and multi-function
displays between kilometers and
miles, press the “SELECT” and
“RESET” button together, turn the
key to “ON” and then release the
buttons. Press the “SELECT” but-
1. “INFO” switch
2. “RESET” button
3. “SELECT” buttonZAUM1145
SELECT
RESET
INFO
km/L/100kmMPG
km/h
MPH
Lo
1/2ODO
FTRIP
x1000r/min
OILOIL2
3
1
1. Coolant temperature meter
2. Tachometer
3. Fuel meter
4. Odometer/tripmeter/fuel reserve tripmeter
5. Clock
6. Error code display
7. Speedometer
8. Multi-function displayZAUM1146
km/h
Lo
Hi
1/2ODO
x1000r/min
OIL1
2
3
4
5
6
7
8
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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
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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
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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
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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)
U5D7E4E0.book Page 16 Thursday, July 10, 2014 3:01 PM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:
1950 mm (76.8 in)
Overall width:
745 mm (29.3 in)
Overall height:
1025 mm (40.4 in)
Seat height:
810 mm (31.9 in)
Wheelbase:
1350 mm (53.1 in)
Ground clearance:
140 mm (5.51 in)
Minimum turning radius:
2500 mm (98.4 in)Weight:Curb weight:
MT125 138 kg (304 lb)
MT125A 140 kg (309 lb)Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Single cylinder
Displacement:
124 cm³
Bore × stroke:
52.0 × 58.6 mm (2.05 × 2.31 in)
Compression ratio:
11.2 : 1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 15W-40, 20W-40 or
20W-50
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Without oil filter element replacement:
0.95 L (1.00 US qt, 0.84 Imp.qt)
With oil filter element replacement:
1.00 L (1.06 US qt, 0.88 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level
mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes):
1.00 L (1.06 US qt, 0.88 Imp.qt)Air filter:Air filter element:
Dry element
Fuel:Recommended fuel:
Premium unleaded gasoline (Gasohol (E10)
acceptable)
Fuel tank capacity:
11.5 L (3.04 US gal, 2.53 Imp.gal)
Fuel reserve amount:
3.0 L (0.79 US gal, 0.66 Imp.gal)Fuel injection:Throttle body:
ID mark:
5D78 10Spark plug(s):Manufacturer/model:
NGK/CR9E
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction ratio:
73/24 (3.042)
Final drive:
Chain
Secondary reduction ratio:
48/14 (3.429)
Transmission type:
Constant mesh 6-speed
Operation:
Left foot operation
Gear ratio:
1st:
34/12 (2.833)
–20 –10 0
1020 30 40 50 C 10 30 50 70 90 110 0 130 F
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
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