Table of contentsSafety information ............................ 1-1
Further safe-riding points ............... 1-5
Description ....................................... 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
Instrument an d control functions ... 3-1
Main switch/steering lock............... 3-1
Keyhole shutter .............................. 3-3
Indicator lights and warning lights............................................ 3-3
Self-diagnosis device .................... 3-5
Multi-function meter unit ................ 3-5
Handlebar switches ........................ 3-9
Front brake lever .......................... 3-10
Rear brake lever ........................... 3-10
ABS (for ABS models) .................. 3-11
Fuel tank cap ................................ 3-12
Fuel ............................................... 3-13
Catalytic converter ....................... 3-14
Seat .............................................. 3-15
Passenger footrest ....................... 3-15
Storage compartment .................. 3-16
Luggage hook............................... 3-17
Sidestand ..................................... 3-17
Ignition circuit cut-off system ....... 3-18
Auxiliary DC connector ................. 3-20 For your safety – pre-operation
checks
............................................... 4-1
Operation an d important ri din g
points ................................................. 5-1
Starting the engine .......................... 5-1
Starting off ...................................... 5-2
Acceleration and deceleration ........ 5-3
Braking ............................................ 5-3
Tips for reducing fuel consumption ................................ 5-3
Engine break-in ............................... 5-4
Parking ............................................ 5-4
Perio dic maintenance an d
a d justment ........................................ 6-1
Owner’s tool kit ............................... 6-2
Periodic maintenance chart for
the emission control system ........ 6-3
General maintenance and
lubrication chart ........................... 6-4
Removing and installing the panel ............................................ 6-8
Checking the spark plug ................. 6-8
Engine oil and oil strainer .............. 6-10
Final transmission oil..................... 6-12
Coolant.......................................... 6-13
Air filter and V-belt case air filter elements .................................... 6-14
Checking the throttle grip free play ..................................... 6-16 Valve clearance............................. 6-16
Tires .............................................. 6-17
Cast wheels .................................. 6-18
Checking the front brake lever
free play..................................... 6-19
Checking the rear brake lever free play..................................... 6-19
Checking the front and rear
brake pads ................................ 6-20
Checking the brake fluid level ...... 6-20
Changing the brake fluid .............. 6-22
Checking and lubricating the cables ........................................ 6-22
Checking and lubricating the
throttle grip and cable ............... 6-22
Lubricating the front and rear brake levers ............................... 6-23
Checking and lubricating the centerstand and sidestand........ 6-23
Checking the front fork ................. 6-24
Checking the steering................... 6-25
Checking the wheel bearings ....... 6-25
Checking the steering tie rod ....... 6-25
Checking the leaning system ....... 6-26
Battery .......................................... 6-26
Replacing the fuses ...................... 6-27
Replacing the headlight bulb ........ 6-29
Auxiliary lights............................... 6-30
Tail/brake light .............................. 6-30
Turn signal light bulb .................... 6-31
Troubleshooting............................ 6-31U2CME2E0.book Page 1 Friday, August 21, 2015 9:16 AM
Instrument and control functions
3-1
3
EAUN0264
Main switch/steerin g lockMW125
MW125A
The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
main switch positions are described
below.
TIPThe main switch/steering lock is
equipped with a keyhole shutter. (See
page 3-3 for keyhole shutter opening
and closing procedures.)
EAUT1972
ON
All electrical circuits are supplied with
power; the meter lighting, taillight, and
auxiliary lights come on, and the en-
gine can be started. The key cannot be
removed.TIPThe headlight comes on automatically
when the engine is started and stays
on until the key is turned to “OFF” or
the sidestand is moved down.
EAU10662
OFF
All electrical systems are off. The key
can be removed.
WARNING
EWA10062
Never turn the key to “OFF” or
“LOCK” while the vehicle is movin g.
Otherwise the electrical systems will
b e switche d off, which may result in
loss of control or an acci dent.
EAU10687
LOCK
The steering is locked and all electrical
systems are off. The key can be re-
moved.
To lock the steeringMW125
LOCK
OFF
ON
LOCK OFF
ON
1. Push.
2. Turn.12
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Instrument and control functions
3-3
3
EAUN0353
Keyhole shutterMW125
MW125A To open the keyhole shutter
Insert the key head into the keyhole
shutter receptacle as shown, and then
turn the key to the right to open the
keyhole shutter.
To close the keyhole shutterPress the “PUSH SHUT” button to
close the keyhole shutter.
EAU49398
In
dicator li ghts an d warnin g
lig hts
EAU11032
Turn si gnal in dicator li ghts “ ”
an d“”
Each indicator light will flash when its
corresponding turn signal lights are
flashing.
1. “PUSH SHUT” button
2. Key head
1. “PUSH SHUT” button
2. Key head
1
2
1
2
1. Left turn signal indicator light “ ”
2. Anti-lock Brake System (ABS) warning light “ ” (for ABS models)
3. Coolant temperature warning light “ ”
4. High beam indicator light “ ”
5. Engine trouble warning light “ ”
6. Right turn signal indicator light “ ”
1
2
3
4
5
6
ABS
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Instrument and control functions
3-4
3
EAU11081
Hi gh beam in dicator li ght “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11447
Coolant temperature warnin g
li g ht “ ”
This warning light comes on if the en-
gine overheats. If this occurs, stop the
engine immediately and allow the en-
gine to cool.
The electrical circuit of the warning
light can be checked by turning the key
to “ON”. The warning light should
come on for a few seconds, and then
go off.
If the warning light does not come on
initially when the key is turned to “ON”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.NOTICE
ECA10022
Do not continue to operate the en-
g ine if it is overheatin g.
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
6-33 for further instructions.
EAU11506
Engine trou ble warnin g lig ht “ ”
This warning light comes on or flashes
if a problem is detected in the electrical
circuit monitoring the engine. If this oc-
curs, have a Yamaha dealer check the
self-diagnosis system. (See page 3-5
for an explanation of the self-diagnosis
device.)
The electrical circuit of the warning
light can be checked by turning the key
to “ON”. The warning light should
come on for a few seconds, and then
go off.
If the warning light does not come on
initially when the key is turned to “ON”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.
EAUU1960
ABS warnin g li ght “ ” (for ABS
mo dels)
In normal operation, the ABS warning
light comes on when the key is turned
to “ON”, and goes off after traveling at
a speed of 10 km/h (6 mi/h) or higher.
If the ABS warning light: does not come on when the key is
turned to “ON”
comes on or flashes while riding
does not go off after traveling at a
speed of 10 km/h (6 mi/h) or high-
er
The ABS may not work correctly. If any
of the above occurs, have a Yamaha
dealer check the system as soon as
possible. (See page 3-11 for an expla-
nation of the ABS.)
WARNING
EWA16041
If the ABS warnin g li ght does not g o
off after travelin g at a speed of 10
km/h (6 mi/h) or hi gher, or if the
warnin g li ght comes on or flashes
while ri din g, the brake system re-
verts to conventional braking . If ei-
ther of the a bove occurs, or if the
warnin g li ght does not come on at
ABS
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Instrument and control functions
3-5
3
all, use extra caution to avoi
d possi-
b le wheel lock durin g emer gency
b rakin g. Have a Yamaha d ealer
check the brake system an d electri-
cal circuits as soon as possi ble.
TIPThe ABS warning light may come on
while accelerating the engine with the
vehicle on its centerstand, but this
does not indicate a malfunction.
EAU12096
Self- dia gnosis 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 or flash. If this oc-
curs, have a Yamaha dealer check the
vehicle.NOTICE
ECA11171
To prevent en gine damag e, be sure
to consult a Yamaha dealer as soon
as possi ble if this occurs.
EAUU1731
Multi-function meter unit
WARNING
EWA12423
Be sure to stop the vehicle before
makin g any settin g chan ges to the
multi-function meter unit. Chan gin g1. Clock
2. “SELECT” button
3. Fuel level warning indicator “ ”
4. Fuel meter
5. Speedometer
6. “RESET” button
7. Outside air temperature display
8. Odometer/tripmeters
9. Oil change indicator “OIL CHANGE”
10.V-belt replacement indicator “V-BELT”12345 6
8
910 7
U2CME2E0.book Page 5 Friday, August 21, 2015 9:16 AM
Instrument and control functions
3-6
3 settin
gs while ri din g can d istract the
operator an d increase the risk of an
acci dent.
The multi-function meter unit is
equipped with the following:
a speedometer
a fuel meter
a clock
an outside air temperature display
an odometer
two tripmeters
a fuel reserve tripmeter
an oil change tripmeter
a V-belt replacement tripmeter
an oil change indicator
a V-belt replacement indicatorTIPBe sure to turn the key to “ON” be-
fore using the “SELECT” and “RE-
SET” buttons.
For the UK: press the “SELECT”
button for one second to switch
the speedometer and odome-
ter/tripmeter displays between ki-
lometers and miles.
If the coolant temperature warning
light and engine trouble warning
light remain on during the initial
display mode, have the battery
charged by a Yamaha dealer.
Speed ometer
The speedometer shows the vehicle’s
traveling speed. 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 bottom segment
of the fuel meter and fuel level warning
indicator “ ” start flashing, refuel as
soon as possible. When the key is
turned to “ON”, all of the display seg-
ments of the fuel meter will appear for
a few seconds, and then the fuel meter
shows the actual fuel level.1. Speedometer
1
1. Fuel level warning indicator “ ”
2. Fuel meter
1
2
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Instrument and control functions
3-11
3
TIP As the unified brake system is me-
chanical, additional free play can
be felt in the front brake lever
when the rear brake lever is being
pulled.
The unified brake system does not
function when the front brake is
applied alone.
EAU70900
ABS (for ABS mo dels)Your leaning multi-wheel vehicle’s ABS
(Anti-lock Brake System) features an
electronic control system, which acts
on each of the front and rear brakes in-
dependently.
Operate the brakes with ABS as you
would conventional brakes. If the ABS
is activated, a pulsating sensation may
be felt at the brake levers. In this situa-
tion, continue to apply the brakes and
let the ABS work; do not “pump” the
brakes as this will reduce braking ef-
fectiveness.
WARNING
EWA16051
Always keep a sufficient d istance
from the vehicle ahead to match the
ri din g speed even with ABS.
The ABS performs best with
lon g b rakin g d istances.
On certain surfaces, such as
rou gh or g ravel roa ds, the b rak-
in g d istance may be lon ger with
the ABS than without.The ABS is monitored by an ECU,
which will revert the system to conven-
tional braking if a malfunction occurs.
TIP The ABS performs a self-diagno-
sis test each time the vehicle first
starts off after the key is turned to
“ON” and the vehicle has traveled
at a speed of 10 km/h (6 mi/h) or
higher. During this test, a “click-
ing” noise can be heard from the
front of the vehicle, and if either
brake lever is even slightly ap-
plied, a vibration can be felt at the
lever, but these do not indicate a
malfunction.
This ABS has a test mode which
allows the owner to experience
the pulsation at the brake levers
when the ABS is operating. How-
ever, special tools are required, so
please consult your Yamaha deal-
er.NOTICE
ECA20100
Be careful not to d amage the wheel
sensor or wheel sensor rotor; other-
wise, improper performance of the
ABS will result.
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Instrument and control functions
3-13
3
EAU13222
FuelMake sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline an d gasoline vapors are
extremely flammab le. To avoid fires
an d explosions an d to re duce 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. When refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. 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 spille d fuel with a clean,
d ry, soft cloth, since fuel may
d eteriorate painte d surfaces or
plastic parts.
[ECA10072]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15152
Gasoline is poisonous an d can
cause injury or d eath. Handle gaso-
line with care. Never siphon gasoline
b y mouth. If you shoul d swallow
some gasoline or inhale a lot of gas-
oline vapor, or g et some gasoline in
your eyes, see your doctor imme di- ately. If g
asoline spills on your skin,
wash with soap an d water. If gaso-
line spills on your clothin g, chan ge
your clothes.
EAU53013
NOTICE
ECA11401
Use only unlea ded g asoline. The use
of lead ed g asoline will cause severe
d amag e to internal en gine parts,
such as the valves an d piston rin gs,
as well as to the exhaust system.Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging)
occurs, use a gasoline of a different
brand or premium unleaded fuel. Use
of unleaded fuel will extend spark plug
life and reduce maintenance costs.
1. Fuel tank filler tube
2. Maximum fuel level
1
2
Recommen ded fuel:
Regular unleaded gasoline (Gasohol
(E10) acceptable)
Fuel tank capacity:
6.6 L (1.74 US gal, 1.45 Imp.gal)
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