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DIC183
MWS125-CMWS125-A
TRICITY 125
OWNER’S MANUAL
BR7-F8199-E0
MOTORCYCLE
[English (E)]
Read this manual carefully before oper-
ating this vehicle.
Page 2 of 92
EAU46093
Read this manual carefully before operating this vehicle. This manual
should stay with this vehicle if it is sold.
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Page 3 of 92

Introduction
EAU60580
Welcome to the Yamaha world of motorcycling!
As the owner of the MWS125-C/MWS125-A, you are benefiting from Yamaha’s
vast experience and newest technology regarding the design and manufacture of
high-quality products, which have earned Yamaha a reputation for dependability.
Please take the time to read this manual thoroughly, so as to enjoy all advantages
of your MWS125-C/MWS125-A. The Owner’s Manual does not only instruct you
in how to operate, inspect and maintain your vehicle, but also in how to safeguard
yourself and others from trouble and injury.
In addition, the many tips given in this manual will help keep your vehicle in the
best possible condition. If you have any further questions, do not hesitate to con-
tact your Yamaha dealer.
The Yamaha team wishes you many safe and pleasant rides. So, remember to put
safety first!
Yamaha continually seeks advancements in product design and quality. There-
fore, while this manual contains the most current product information available at
the time of printing, there may be minor discrepancies between your vehicle and
this manual. If there is any question concerning this manual, please consult a
Yamaha dealer.
WARNING
EWA17780
Please read this manual carefully and completely before operating this vehi-
cle.
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Important manual information
EAU63350
Particularly important information is distinguished in this manual by the following
notations:
*Product and specifications are subject to change without notice.
EAU37432
This is the safety alert symbol. It is used to
alert you to potential personal injury haz-
ards. Obey all safety messages that follow
this symbol to avoid possible injury or death.
A WARNING indicates a hazardous situation
which, if not avoided, could result in death or
serious injury.
A NOTICE indicates special precautions that
must be taken to avoid damage to the vehi-
cle or other property.
A TIP provides key information to make proce-
dures easier or clearer.
MWS125-C/MWS125-A
OWNER’S MANUAL
©2016 by Thai Yamaha Motor Co., Ltd.
1st edition, September 2016
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Thai Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Thailand.
WARNING
NOTICE
TIP
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Table of contents
Safety information............................1-1
Further safe-riding points ................1-6
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
Keyhole shutter ...............................3-2
Indicator lights and warning
lights ............................................3-3
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................................................3-12
Fuel tank overflow hose ................3-14
Catalytic converter ........................3-14
Seat ...............................................3-15
Passenger footrest ........................3-15
Storage compartment ...................3-16
Accessory box...............................3-17
Luggage hook ...............................3-18
Sidestand ......................................3-18
Ignition circuit cut-off system........3-19
Auxiliary DC jack ..........................3-21
Auxiliary DC connector .................3-22
For your safety – pre-operation
checks...............................................4-1
Operation and important riding
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 ................................5-4
Engine break-in ...............................5-4
Parking ............................................5-5Periodic maintenance and
adjustment........................................ 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 ............................................ 6-7
Checking the spark plug ................. 6-8
Engine oil and oil strainer................ 6-9
Final transmission oil .................... 6-11
Coolant ......................................... 6-12
Air filter and V-belt case air filter
elements .................................... 6-14
Checking the throttle grip
free play ..................................... 6-16
Valve clearance ............................. 6-17
Tires .............................................. 6-17
Cast wheels .................................. 6-19
Checking the front brake lever
free play ..................................... 6-20
Checking the rear brake lever
free play ..................................... 6-20
Checking the front and rear
brake pads................................. 6-21
Checking the brake fluid level....... 6-22
Changing the brake fluid............... 6-23
Checking the V-belt ...................... 6-23
Checking and lubricating the
cables ........................................ 6-24
Checking and lubricating the
throttle grip and cable ............... 6-24
Lubricating the front and rear
brake levers ............................... 6-25
Checking and lubricating the
centerstand and sidestand ........ 6-25
Checking the front fork ................. 6-26
Checking the steering ................... 6-26
Checking the wheel bearings ....... 6-27
Checking the steering tie rod........ 6-27
Checking the leaning system ........ 6-28
Battery .......................................... 6-28
Replacing the fuses ...................... 6-30
Headlight....................................... 6-31
Auxiliary lights ............................... 6-32
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Table of contents
Brake/tail light............................... 6-32
Turn signal light bulb .................... 6-33
Replacing the license plate
light bulb ................................... 6-33
Troubleshooting............................ 6-34
Troubleshooting charts................. 6-35
Vehicle care and storage................ 7-1
Matte color caution ........................ 7-1
Care ................................................ 7-1
Storage ........................................... 7-4
Specifications................................... 8-1
Consumer information..................... 9-1
Identification numbers .................... 9-1
Diagnostic connector ..................... 9-2
Vehicle data recording.................... 9-2
Index................................................ 10-1
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1-1
1
Safety information
EAU60750
Be a Responsible Owner
As the vehicle’s owner, you are re-
sponsible for the safe and proper oper-
ation of your vehicle.
This is a leaning multi-wheel vehicle.
The safe use and operation of this ve-
hicle is dependent upon the use of
proper riding techniques as well as the
expertise of the operator. Every opera-
tor should know the following require-
ments before riding this vehicle.
He or she should:
zObtain thorough instructions from
a competent source on all aspects
of this vehicle’s operation.
zObserve the warnings and mainte-
nance requirements in this Own-
er’s Manual.
zObtain qualified training in safe
and proper riding techniques.
zObtain professional technical ser-
vice as indicated in this Owner’s
Manual and/or when made neces-
sary by mechanical conditions.
zNever operate a vehicle without
proper training or instruction. Take
a training course. Beginners
should receive training from a cer-
tified instructor. Contact a
Yamaha dealer to find out about
the training courses nearest you.
Safe Riding
Perform the pre-operation checks
each time you use the vehicle to make
sure it is in safe operating condition.
Failure to inspect or maintain the vehi-
cle properly increases the possibility of
an accident or equipment damage.
See page 4-1 for a list of pre-operationchecks.
zThis vehicle is designed to carry
the operator and a passenger.
zThe failure of motorists to detect
and recognize scooters and mo-
torcycles in traffic is the predomi-
nating cause of automobile and
such smaller vehicle accidents.
Many accidents have been
caused by an automobile driver
who did not see the smaller vehi-
cle. Making yourself conspicuous
appears to be very effective in re-
ducing the chance of this type of
accident.
Therefore:
• Wear a brightly colored jacket.
• Use extra caution when you are
approaching and passing
through intersections, since in-
tersections are the most likely
places for such smaller vehicle
accidents to occur.
• Ride where other motorists can
see you. Avoid riding in another
motorist’s blind spot.
• Never maintain a vehicle with-
out proper knowledge. Contact
a Yamaha dealer to inform you
on basic vehicle maintenance.
Certain maintenance can only
be carried out by certified staff.
zMany accidents involve inexperi-
enced operators. In fact, many op-
erators who have been involved in
accidents do not even have a cur-
rent driver’s license.
• Make sure that you are qualified
and that you only lend your ve-
hicle to other qualified opera-
tors.
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Safety information
1-2
1• Know your skills and limits.
Staying within your limits may
help you to avoid an accident.
• We recommend that you prac-
tice riding your vehicle where
there is no traffic until you have
become thoroughly familiar with
the vehicle and all of its con-
trols.
zMany accidents have been
caused by error of the vehicle op-
erator. A typical error made by the
operator is veering wide on a turn
due to excessive speed or under-
cornering (insufficient lean angle
for the speed).
• Always obey the speed limit and
never travel faster than warrant-
ed by road and traffic condi-
tions.
• Always signal before turning or
changing lanes. Make sure that
other motorists can see you.
zThe posture of the operator and
passenger is important for proper
control.
• The operator should keep both
hands on the handlebar and
both feet on the operator foot-
rests during operation to main-
tain control of the vehicle.
• The passenger should always
hold onto the operator, the seat
strap or grab bar, if equipped,
with both hands and keep both
feet on the passenger footrests.
Never carry a passenger unless
he or she can firmly place both
feet on the passenger footrests.
zNever ride under the influence of
alcohol or other drugs. zThis vehicle is designed for on-
road use only. It is not suitable for
off-road use.
Protective Apparel
The majority of fatalities from scooter
and motorcycle accidents are the re-
sult of head injuries. The use of a safety
helmet is the single most critical factor
in the prevention or reduction of head
injuries.
zAlways wear an approved helmet.
zWear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impairment
of vision that could delay seeing a
hazard.
zThe use of a jacket, substantial
shoes, trousers, gloves, etc., is ef-
fective in preventing or reducing
abrasions or lacerations.
zNever wear loose-fitting clothes,
otherwise they could catch on the
control levers or wheels and cause
injury or an accident.
zAlways wear protective clothing
that covers your legs, ankles, and
feet. The engine or exhaust sys-
tem become very hot during or af-
ter operation and can cause
burns.
zA passenger should also observe
the above precautions.
Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing
carbon monoxide can cause head-
aches, dizziness, drowsiness, nausea,
confusion, and eventually death.
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