fuel YAMAHA MT-125 2020 Owners Manual

Table of contents
Safety 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.......................3-12
Clutch lever ...................................3-13
Shift pedal .....................................3-13
Brake lever ....................................3-14
Brake pedal ...................................3-14
ABS ...............................................3-15
Fuel tank cap.................................3-16
Fuel................................................3-16
Fuel tank overflow hose ................3-18
Catalytic converter ........................3-18
Seat ...............................................3-19
Helmet holder ................................3-20
Sidestand ......................................3-20
Ignition circuit cut-off system........3-21
For your safety – pre-operation
checks...............................................4-1
Operation and important riding
points.................................................5-1
Engine break-in ...............................5-1
Starting the engine ..........................5-2
Shifting ............................................5-4
Tips for reducing fuel
consumption ................................5-5
Parking ............................................5-6
Periodic maintenance and
adjustment........................................6-1
Tool kit.............................................6-2
Periodic maintenance chart for the
emission control system ..............6-3
General maintenance and
lubrication chart ...........................6-4Removing and installing
cowlings ...................................... 6-7
Checking the spark plug ................. 6-7
Engine oil and oil filter element ....... 6-8
Why Yamalube .............................. 6-11
Coolant ......................................... 6-11
Replacing the air filter element
and cleaning the check hose..... 6-13
Adjusting the engine idling
speed......................................... 6-13
Adjusting the throttle grip free
play ............................................ 6-14
Valve clearance ............................. 6-15
Tires .............................................. 6-15
Cast wheels .................................. 6-18
Adjusting the clutch lever free
play ............................................ 6-18
Checking the front brake lever
free play ..................................... 6-19
Adjusting the brake pedal free
play ............................................ 6-20
Brake light switches ...................... 6-20
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 ........................... 6-23
Cleaning and lubricating the drive
chain .......................................... 6-25
Checking and lubricating the
cables ........................................ 6-25
Checking and lubricating the
throttle grip and cable ............... 6-26
Checking and lubricating the
brake and shift pedals ............... 6-26
Checking and lubricating the
brake and clutch levers ............. 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 .......................................... 6-30
Replacing the fuses ...................... 6-31
Vehicle lights ................................. 6-32
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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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Description
2-1
2
EAU63371
Left view
1234
65798
1. Fuel tank cap (page 3-16)
2. Battery (page 6-30)
3. Fuses (page 6-31)
4. Tool kit (page 6-2)
5. Sidestand (page 3-20)
6. Air filter check hose
7. Shift pedal (page 3-13)
8. Idle adjusting screw (page 6-13)
9. Coolant reservoir (page 6-11)
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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
3-5
3 4. Use the “RESET” button to set the
minutes.
5. Push the “SELECT” button to start
the clock.
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
decreases. When the last segment
start flashing, refuel as soon as possi-
ble.
When the key is turned to “ ”, the dis-
play segments of the fuel meter will
sweep once across the fuel level range
and then return to the current amount
in order to test the electrical circuit.
TIP
The fuel meter is equipped with a self-
diagnosis function. If a problem is de-
tected in the fuel meter electrical cir-
cuit, the fuel meter will flash
repeatedly. If this occurs, have a
Yamaha dealer check the vehicle.
VVA indicator
This model is equipped with variable
valve actuation (VVA) for good fuel
economy and acceleration in both the
low-speed and high-speed ranges.
The VVA indicator comes on when the
variable valve actuation system has
switched to the high-speed range.
Tachometer
The tachometer allows the rider to
monitor the engine speed and keep it
within the ideal power range.
NOTICE
ECA23050
Do not operate the engine in the ta-
chometer high-r/min zone.
High-r/min zone: 11000 r/min and
above
1. Fuel meter
ZAUM15701
1. VVA (variable valve actuation) indicator
1. Tachometer
2. Tachometer red zone
ZAUM1571
1
ZAUM1572
1
2
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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
3-7
3 tween the various tripmeter, odometer,
instantaneous fuel consumption, aver-
age fuel consumption, and average
speed modes in the following order:
TRIP F → km/L or L/100 km → AVE_
_._ km/L or AVE_ _._ L/100 km → AVE_
_._ km/h → ODO → TRIP 1 → TRIP 2
→ TRIP F
For the UK:
TRIP F → km/L, L/100 km or MPG →
AVE_ _._ km/L, AVE_ _._ L/100 km or
AVE_ _ _._ MPG→ AVE_ _._ km/h or
AVE_ _._ MPH → ODO → TRIP 1 →
TRIP 2 → TRIP F
To reset a tripmeter, select it by push-
ing the “SELECT” button and then
push and hold the “RESET” button.
If you do not reset the fuel reserve trip-
meter manually, it resets itself auto-
matically and the display returns to the
prior mode after refueling and traveling
5 km (3 mi).
Odometer mode
The odometer shows the total distance
traveled by the vehicle. It will lock at
999999 and cannot be reset.Tripmeters mode
The tripmeters shows the total dis-
tance traveled since they were last re-
set.
To reset a tripmeter, push and hold the
“RESET” button.
TIP
The tripmeters will reset and con-
tinue counting after 9999.9 is
reached. To reset the tripmeters,
while it is being displayed, push
and hold the “RESET” button.
Instantaneous fuel consumption
mode
Shows the current fuel consumption
when the vehicle is traveling at least 10
km/h (6 mi/h).
1. Odometer
ZAUM15751
1. Tripmeter
1. Instantaneous fuel consumption display
ZAUM15761
ZAUM15771
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Instrument and control functions
3-8
3The instantaneous fuel consumption
can be set to either “km/L”, “L/100 km”
or “MPG” (for the UK).
To switch the instantaneous fuel con-
sumption display between “km/L”,
“L/100 km” and “MPG” (for the UK),
push and hold the “SELECT” button.
“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): The distance
that can be traveled on
1.0 Imp.gal of fuel under the cur-
rent riding conditions is shown.
TIP
If traveling at speeds under 10
km/h (6 mi/h), “_ _._” is displayed.
The instantaneous fuel consump-
tion function should be used for
general reference only. Do not use
this figure to estimate the distance
that can be traveled on the current
tank of fuel.
Average fuel consumption mode
Show the average fuel consumption
since it was last reset.The average fuel consumption can be
set to either “AVE_ _._ km/L”, “AVE_
_._ L/100 km” or “AVE_ _ _._ MPG” (for
the UK).
To switch the average fuel consump-
tion display between “AVE_ _._ km/L”,
“AVE_ _._ L/100 km” or “AVE_ _ _._
MPG” (for the UK), push and hold the
“SELECT” button.
“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):
The average distance that can be
traveled on 1.0 Imp.gal of fuel is
shown.
To reset the average fuel consumption
display, push and hold the “RESET”
button.
TIP
 After resetting the average fuel
consumption, “_ _._” will be
shown until the vehicle has trav-
eled 1 km (0.6 mi).
The average fuel consumption
function should be used for gener-
al reference only. Do not use this
figure to estimate the distance that
can be traveled on the current
tank of fuel.
1. Average fuel consumption display
ZAUM15781
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Instrument and control functions
3-16
3
EAU13076
Fuel tank cap
To open the fuel tank cap
Open the fuel tank cap lock cover, in-
sert the key into the lock, and then turn
it 1/4 turn clockwise. The lock will be
released and the fuel tank cap can be
opened.
To close the fuel tank cap
With the key still inserted in the lock,
push down the fuel tank cap. Turn the
key 1/4 turn counterclockwise, remove
it, and then close the lock cover.
TIP
The fuel tank cap cannot be closed un-
less the key is in the lock. In addition,
the key cannot be removed if the cap is
not properly closed and locked.
WARNING
EWA11092
Make sure that the fuel tank cap is
properly closed after filling fuel.
Leaking fuel is a fire hazard.
EAU13213
Fuel
Make 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,1. Fuel tank cap lock cover
2. Unlock.
1
2
1. Fuel tank filler tube
2. Maximum fuel level
1
2
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Instrument and control functions
3-17
3 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.
EAU86072
Your Yamaha engine was designed to
use unleaded gasoline with a research
octane number of 95 or higher. If en-
gine knocking or pinging occurs, use a
gasoline of a different brand or higher
octane rating.
TIP
This mark identifies the recom-
mended fuel for this vehicle as
specified by European regulation
(EN228).
Confirm the gasoline pump nozzle
has the same fuel identification
mark.
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.
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.
Recommended fuel:
Unleaded gasoline (E10 acceptable)
Octane number (RON):
95
Fuel tank capacity:
10 L (2.6 US gal, 2.2 Imp.gal)
Fuel tank reserve:
3.0 L (0.79 US gal, 0.66 Imp.gal)
E5E10
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