transmission YAMAHA MT-125 2020 Owners Manual

Safety information
1-5
1 operator 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. See page 6-15
for tire specifications and for informa-
tion on servicing and 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.
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-mountedhandlebars 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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Instrument and control functions
3-2
3To unlock the steering
From the “LOCK” position, push the
key and turn it to “OFF”.
EAU4939H
Indicator lights and warning
lights
EAU11022Turn signal indicator light “ ”
This indicator light flashes when a turn
signal light is flashing.
EAU11061Neutral indicator light “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU11081High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11449Coolant temperature warning
light “ ”
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 6-37.)
1. Push.
2. Turn.
12
1. Shift light
2. Turn signal indicator light Ž
3. High beam indicator light Ž
4. Anti-lock Brake System (ABS) warning
light Ž
5. Engine trouble warning light Ž
6. Coolant temperature warning light Ž
7. Neutral indicator light Ž
ZAUM1566
56 72
3
4
1
ABS
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Instrument and control functions
3-4
3
EAUM4010
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 clock
a fuel meter
a VVA indicator
a tachometer
a transmission gear display
a multi-function display
a shift timing indicator light
a self diagnosis device
TIP
Except when accessing the
brightness screen and shift timing
indicator light control mode or
when displaying the welcome
screen, the key must be turned
to “ ” before you can use the
“SELECT” and “RESET” buttons
to adjust the multi-function meter.For the UK: To switch between ki-
lometers and miles, press and
hold the “SELECT” button.
Speedometer
The speedometer shows the vehicle’s
traveling speed.
Clock mode
The clock uses a 12-hour time system.
To set the clock
1. Push and hold the “SELECT” and
“RESET” button together.
2. When the hour digits start flash-
ing, use the “RESET” button to set
the hours.
3. Push the “SELECT” button and
the minutes will start flashing.
1. “SELECT” button
2. “RESET” button
ZAUM156712
1. Speedometer
1. Clock
ZAUM15681
ZAUM15691
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Instrument and control functions
3-6
3Transmission gear display
This display shows the selected gear.
The neutral position is indicated by “ ”
and by the neutral indicator light.
Multi-function display
The multi-function display is equipped
with the following:
an odometer
two tripmeters
a fuel reserve tripmeter
an instantaneous fuel consump-
tion display
an average fuel consumption dis-
play
an average speed display
a brightness screen and shift tim-
ing indicator light control mode
welcome screen display
a self diagnosis devicePush the “SELECT” button to switch
the display between the odometer
mode “ODO”, tripmeters mode “TRIP
1” and “TRIP 2”, instantaneous fuel
consumption mode “km/L” or “L/100
km”, average fuel consumption mode
“AVE_ _._ km/L” or “AVE_ _._ L/100
km” and average speed mode “AVE_
_._ km/h” in the following order:
ODO → TRIP 1 → TRIP 2 → km/L or
L/100 km → AVE_ _._ km/L or AVE_ _._
L/100 km → AVE_ _._ km/h → ODO
For the UK:
Push the “SELECT” button to switch
the display between the odometer
mode “ODO”, tripmeters mode “TRIP
1” and “TRIP 2”, instantaneous fuel
consumption mode “km/L” or “L/100
km” or “MPG, average fuel consump-
tion mode “AVE_ _._ km/L”, “AVE_ _._
L/100 km” or “AVE_ _ _._ MPG” and
average speed mode “AVE_ _._ km/h”
or “AVE_ _._ MPH” in the following or-
der:
ODO → TRIP 1 → TRIP 2 → km/L or
L/100 km or MPG → AVE_ _._ km/L or
AVE_ _._ L/100 km or AVE_ _ _._
MPG→ AVE_ _._ km/h or AVE_ _._
MPH → ODO
Push the “RESET” button to switch
display backward.
If the last segment of the fuel meter
starts flashing, the display automati-
cally changes to the fuel reserve trip-
meter mode “TRIP F” and starts
counting the distance traveled from
that point. In that case, push the “SE-
LECT” button to switch the display be-
1. Neutral indicator light “ ”
2. Transmission gear display
1. Multi-function display
ZAUM1573
1
2
ZAUM15741
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Instrument and control functions
3-13
3
EAU12823
Clutch lever
To disengage the drivetrain from the
engine, such as when shifting gears,
pull the clutch lever toward to the han-
dlebar. Release the lever to engage the
clutch and transmit power to the rear
wheel.
TIP
The lever should be pulled rapidly and
released slowly for smooth shifting.
(See page 5-4.)
EAU12876
Shift pedal
The shift pedal is located on the left
side of the motorcycle. To shift the
transmission to a higher gear, move
the shift pedal up. To shift the trans-
mission to a lower gear, move the shift
pedal down. (See page 5-4.)
1. Clutch lever
1
1. Shift pedal
1
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Instrument and control functions
3-22
3
With the engine turned off:
1. Move the sidestand down.
2.Set engine stop switch to run position.
3. Turn main switch to on position.
4.Shift transmission into neutral.
5. Push the start switch.
Does the engine start?
With the engine still running:
6. Move the sidestand up.
7. Pull the clutch lever.
8.Shift transmission into gear.
9. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
10. Move the sidestand up.
11. Pull the clutch lever.
12. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can
be ridden.
The neutral switch may not be working.
The motorcycle should not be ridden
until checked by a Yamaha dealer.
The sidestand switch may not be
working.
The motorcycle should not be ridden
until checked by a Yamaha dealer.
The clutch switch may not be working.
The motorcycle should not be ridden
until checked by a Yamaha dealer.
WARNING
If a malfunction is found, have the
vehicle inspected before riding.
YES NO
YES NO
YES NO
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Operation and important riding points
5-2
51000 km (600 mi) and beyond
The vehicle can now be operated nor-
mally.
NOTICE
ECA10311
Keep the engine speed out of
the tachometer red zone.
If any engine trouble should oc-
cur during the engine break-in
period, immediately have a
Yamaha dealer check the vehi-
cle.
EAU86690
Starting the engine
The ignition circuit cut-off system will
enable starting when:
the transmission is in the neutral
position or
the transmission is in gear, the
sidestand is up, and the clutch le-
ver is pulled.
To start the engine
1. Turn the main switch on and set
the engine stop switch to the run
position.
2. Confirm the indicator and warning
light(s) come on for a few sec-
onds, and the go off. (See page
3-2.)
TIP
Do not start the engine if the en-
gine trouble warning light remains
on.
The ABS warning light should
come on and stay on until the ve-
hicle reaches a speed of 10 km/h
(6 mi/h).
NOTICE
ECA24110
If a warning or indicator light does
not work as described above, have a
Yamaha dealer check the vehicle.
3. Shift the transmission into the
neutral position.
4. Start the engine by pushing the
start switch.
5. Release the start switch when the
engine starts, or after 5 seconds.
Wait 10 seconds before pressing
the switch again to allow battery
voltage to restore.
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Operation and important riding points
5-4
5
EAU16674
Shifting
Shifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
The gear positions are shown in the il-
lustration.
TIP
To shift the transmission into the neu-
tral position ( ), press the shift pedal
down repeatedly until it reaches the
end of its travel, and then slightly raise
it.
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.
EAU85370To start out and accelerate
1. Pull the clutch lever to disengage
the clutch.
2. Shift the transmission into first
gear. The neutral indicator light
should go out.
3. Open the throttle gradually, and at
the same time, release the clutch
lever slowly.
4. After starting out, close the throt-
tle, and at the same time, quickly
pull the clutch lever in.
5. Shift the transmission into second
gear. (Make sure not to shift the
transmission into the neutral posi-
tion.)
6. Open the throttle part way and
gradually release the clutch lever.
7. Follow the same procedure when
shifting to the next higher gear.
EAU85380To decelerate
1. Release the throttle and apply
both the front and the rear brakes
smoothly to slow the motorcycle.
2. As the vehicle decelerates, shift to
a lower gear.
3. When the engine is about to stall
or runs roughly, pull the clutch le-
ver in, use the brakes to slow the
motorcycle, and continue to
downshift as necessary.
4. Once the motorcycle has
stopped, the transmission can be
shifted into the neutral position.
1. Neutral position
2. Shift pedal
1 2 3 4 5
6
1
2 N
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Periodic maintenance and adjustment
6-23
6
EAU22734
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid every 2 years. In addition,
have the seals of the master cylinders
and brake calipers, as well as the brake
hoses replaced at the intervals listed
below or sooner if they are damaged or
leaking.
Brake seals: every 2 years
Brake hoses: every 4 years
EAU22762
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU74253To check the drive chain slack
1. Place the motorcycle on the side-
stand.
TIP
When checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.
2. Shift the transmission into the
neutral position.
3. Measure the drive chain slack as
shown.
4. If the drive chain slack is incorrect,
adjust it as follows. NOTICE: Im-
proper drive chain slack will
overload the engine as well as
other vital parts of the motorcy-
cle and can lead to chain slip-
page or breakage. To prevent
this from occurring, keep the
drive chain slack within the
specified limits.
[ECA10572]
1. Drive chain slack
Drive chain slack:
30.0–40.0 mm (1.18–1.57 in)
ZAUM1604
1
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