Yamaha TTR 125 2023 User manual

PRINTED IN BRAZIL
2023.06-FAMAS (E, F, G)
Location of important labels
TT-R125LWE
TT-R125ELR
TT-R125LWER
BSR-F8199-81
OWNER’S MANUAL
MANUEL DU PROPRIÉTAIRE
BEDIENUNGSANLEITUNG
Read this manual carefully
before operating this vehicle.
Il convient de lire attentive-
Bedienungsanleitung sorgfälfig
durch, bevor Sie das Fahrzeug
in Betrieb nehmen.
ment ce manuel avant la
première utilisation du véhicule.
Bitte lesen Sie diese

PRINTED IN BRAZIL
2023.06-FAMAS (E)
OWNER’S MANUAL
BSR-F8199-81-E0
TT-R125LWER
TT-R125LWE
Location of important labels
TT-R125ELR

EAUW5070
Readthis manual carefully before operatingthis vehicle. This manual shouldstay with this vehicle if it is sold.
UBSR81E0.book Page 1 Monday, April 3, 2023 10:39 AM

Introduction
EAUW4200
Congratulations on your purchase of the Yamaha TT-R125LWE. This model is the result of Yamaha’s vast experience in the
production of fine sporting, touring, and pacesetting racing machines. It represents the high degree of craftsmanship and
reliability that have made Yamaha a leader in these fields.
This manual will give you an understanding of the operation, inspection, and basic maintenance of this motorcycle. If you
have any questions concerning the operation or maintenance of your motorcycle, please consult a Yamaha dealer.
The design and manufacture of this Yamaha motorcycle fully comply with the emissions standards for clean air applicable
at the date of manufacture. Yamaha has met these standards without reducing the performance or economy of operation
of the motorcycle. To maintain these high standards, it is important that you and your Yamaha dealer pay close attention
to the recommended maintenance schedules and operating instructions contained within this manual.
Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most cur-
rent product information available at the time of printing, there may be minor discrepancies between your motorcycle and
this manual. If there is any question concerning this manual, please consult a Yamaha dealer.
WARNING
EWA10032
Please readthis manual carefully andcompletely before operatingthis motorcycle.
WARNING
EWA14352
This motorcycle is designedandmanufacturedfor off-roaduse only. It is illegal to operate this motorcycle on any
public street, roador highway. Such use is prohibitedby law. This motorcycle complies with almost all state off-
highway noise level andspark arrester laws andregulations. Please check your local ridinglaws andregulations
before operatingthis motorcycle.
WARNING
EWA16291
This vehicle is not suitable for novice riders. This vehicle shall only be usedby trainedandexperiencedriders.
UBSR81E0.book Page 1 Monday, April 3, 2023 10:39 AM

Introduction
AN IMPORTANT SAFETY MESSAGE:
Read this manual completely before operating your motorcycle. Make sure you understand all instructions.
Pay close attention to the warning and notice labels on the motorcycle.
Never operate a motorcycle without proper training or instruction.
AN IMPORTANT NOTE TO PARENTS:
This motorcycle is not a toy. Before you let your child ride this motorcycle, you should understand the instructions and warn-
ings in this Owner’s Manual. Then be sure your child understands and will follow them. Children differ in skills, physical abil-
ities, and judgment. Some children may not be able to operate a motorcycle safely. Parents should supervise their child’s
use of the motorcycle at all times. Parents should permit continued use only if they determine that the child has the ability
to operate the motorcycle safely.
Motorcycles are single track vehicles. Their safe use andoperation are dependent upon the use of proper riding
techniques as well as the expertise of the operator. Every operator shouldknow the followingrequirements before
ridingthis motorcycle.
He or she should:
Obtain thorough instructions from a competent source on all aspects of motorcycle operation.
Observe the warnings and maintenance requirements in this Owner’s Manual.
Obtain qualified training in safe and proper riding techniques.
Obtain professional technical service as indicated in this Owner’s Manual and/or when made necessary by mechanical
conditions.
UBSR81E0.book Page 2 Monday, April 3, 2023 10:39 AM

Important manual information
EAU10134
Particularly important information is distinguished in this manual by the following notations:
*Product and specifications are subject to change without notice.
This is the safety alert symbol. It is usedto alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoidpossible injury
or death.
A WARNING indicates a hazardous situation which, if not avoided, couldresult in
death or serious injury.
A NOTICE indicates special precautions that must be taken to avoiddamage to the
vehicle or other property.
A TIP provides key information to make procedures easier or clearer.
WARNING
NOTICE
TIP
UBSR81E0.book Page 1 Monday, April 3, 2023 10:39 AM

Important manual information
EAUW0012
TT-R125ELR/TT-R125LWE/TT-R125LWER
OWNER’S MANUAL
©2024 by Yamaha Motor da Amazônia Ltda.
2nd edition, June 2023
All rights reserved.
Any reprintingorunauthorizeduse
without the written permission of
Yamaha Motor da Amazônia Ltda.
is expressly prohibited.
Printedin Brazil.
UBSR81E0.book Page 2 Monday, April 3, 2023 10:39 AM

Table of contents
Location of important labels............1-1
Safety information ............................2-1
Description ........................................3-1
Left view ..........................................3-1
Right view........................................3-2
Controls and instruments................3-3
Instrument andcontrol functions....4-1
Main switch .....................................4-1
Handlebar switches.........................4-1
Clutch lever .....................................4-2
Shift pedal .......................................4-2
Brake lever ......................................4-3
Brake pedal .....................................4-3
Fuel tank cap...................................4-3
Fuel..................................................4-4
Fuel tank breather hose...................4-5
Fuel cock.........................................4-6
Starter (choke) knob .......................4-6
Kickstarter .......................................4-7
Seat .................................................4-7
Cable lock (for Europe)....................4-8
Adjusting the front fork....................4-8
Adjusting the shock absorber
assembly......................................4-9
Sidestand ......................................4-11
Starting circuit cut-off system.......4-12
For your safety – pre-operation
checks ............................................... 5-1
Operation andimportant riding
points................................................. 6-1
Engine break-in............................... 6-1
Starting a cold engine..................... 6-2
Starting a warm engine................... 6-2
Shifting............................................ 6-3
Parking............................................ 6-4
Periodic maintenance and
adjustment ........................................ 7-1
Periodic maintenance chart for the
emission control system ............. 7-2
General maintenance and
lubrication chart .......................... 7-3
Removing and installing panels...... 7-6
Checking the spark plug................. 7-7
Engine oil ........................................ 7-8
Cleaning the air filter element and
check hoses .............................. 7-11
Cleaning the spark arrester .......... 7-12
Adjusting the carburetor ............... 7-13
Adjusting the engine idling
speed......................................... 7-14
Adjusting the throttle grip free
play............................................ 7-14
Valve clearance............................. 7-15
Tires .............................................. 7-15
Spoke wheels ............................... 7-17
Adjusting the clutch lever free
play ............................................7-17
Adjusting the brake lever free
play ............................................7-18
Adjusting the brake pedal height
and free play ..............................7-19
Checking the shift pedal ...............7-20
Checking the front brake pads
and rear brake shoes ................7-20
Checking the brake fluid level.......7-21
Changing the brake fluid ..............7-22
Drive chain slack ...........................7-22
Cleaning and lubricating the
drive chain .................................7-24
Checking and lubricating the
cables ........................................7-24
Checking and lubricating the
throttle grip and cable ...............7-24
Checking and lubricating the
brake and shift pedals ...............7-25
Checking and lubricating the
brake and clutch levers .............7-25
Checking and lubricating the
sidestand ...................................7-26
Lubricating the rear suspension....7-26
Lubricating the swingarm pivots...7-26
Checking the front fork .................7-27
Checking the steering ...................7-27
Checking the wheel bearings........7-28
Battery...........................................7-28
Replacing the fuse ........................7-29
UBSR81E0.book Page 1 Monday, April 3, 2023 10:39 AM

Table of contents
Supporting the motorcycle........... 7-30
Front wheel................................... 7-31
Rear wheel.................................... 7-31
Troubleshooting............................ 7-33
Troubleshooting chart .................. 7-34
Motorcycle care andstorage.......... 8-1
Care................................................ 8-1
Storage........................................... 8-3
Specifications................................... 9-1
Consumer information................... 10-1
Identification numbers.................. 10-1
Index................................................ 11-1
UBSR81E0.book Page 2 Monday, April 3, 2023 10:39 AM

Location of important labels
1-1
1
EAUW5010
Read and understand all of the labels on your vehicle. They contain important information for safe and proper operation of
your vehicle. Never remove any labels from your vehicle. If a label becomes difficult to read or comes off, a replacement
label is available from your Yamaha dealer.
For Canada
UBSR81E0.book Page 1 Monday, April 3, 2023 10:39 AM

Location of important labels
1-2
1For Canada
UBSR81E0.book Page 2 Monday, April 3, 2023 10:39 AM

Location of important labels
1-3
1
For Canada
UBSR81E0.book Page 3 Monday, April 3, 2023 10:39 AM

Location of important labels
1-4
1For Europe
1234,5
UBSR81E0.book Page 4 Monday, April 3, 2023 10:39 AM

Location of important labels
1-5
1
For Europe
UBSR81E0.book Page 5 Monday, April 3, 2023 10:39 AM

Location of important labels
1-6
1Familiarize yourself with the following pictograms and read the explanatory text.
Read the Owner’s manual.
Always use an approved
helmet and protective gear.
Never use on paved roads.
Use from 6 years old.
Operation of this motorcycle
by children under the age of 6
increase the risk of severe
injury or death.
Never carry passengers.
Adult supervision required for
children.
This unit contains high-
pressure nitrogen gas.
Mishandling can cause an
explosion. Do not incinerate,
puncture or open.
Turn off the main switch after
riding to avoid draining the
battery.
UBSR81E0.book Page 6 Monday, April 3, 2023 10:39 AM

Location of important labels
1-7
1
****
UBSR81E0.book Page 7 Monday, April 3, 2023 10:39 AM

Location of important labels
1-8
1For Oceania andSouth Africa
3
1
2
UBSR81E0.book Page 8 Monday, April 3, 2023 10:39 AM

Location of important labels
1-9
1
For Oceania andSouth Africa
UBSR81E0.book Page 9 Monday, April 3, 2023 10:39 AM

2-1
2
Safety information
EAU41469
Be a Responsible Owner
As the vehicle’s owner, you are re-
sponsible for the safe and proper oper-
ation of your motorcycle.
Motorcycles are single-track vehicles.
Their safe use and operation are de-
pendent upon the use of proper riding
techniques as well as the expertise of
the operator. Every operator should
know the following requirements be-
fore riding this motorcycle.
He or she should:
Obtain thorough instructions from
a competent source on all aspects
of motorcycle operation.
Observe the warnings and mainte-
nance requirements in this Own-
er’s Manual.
Obtain qualified training in safe
and proper riding techniques.
Obtain professional technical ser-
vice as indicated in this Owner’s
Manual and/or when made neces-
sary by mechanical conditions.
Never operate a motorcycle with-
out proper training or instruction.
Take a training course. Beginners
should receive training from a cer-
tified instructor. Contact an autho-
rized motorcycle 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 5-1 for a list of pre-operation
checks.
This motorcycle is designed for
off-road use only, therefore, it is il-
legal to operate it on public
streets, roads, or highways, even
a dirt or gravel one. Off-road use
on public lands may be illegal.
Please check local regulations be-
fore riding.
This motorcycle is designed to
carry the operator only. No pas-
sengers.
The failure of motorists to detect
and recognize motorcycles in traf-
fic is the predominating cause of
automobile/motorcycle accidents.
Many accidents have been
caused by an automobile driver
who did not see the motorcycle.
Making yourself conspicuous ap-
pears to be very effective in reduc-
ing 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 motorcycle accidents
to occur.
• Ride where other motorists can
see you. Avoid riding in another
motorist’s blind spot.
• Never maintain a motorcycle
without proper knowledge.
Contact an authorized motorcy-
cle dealer to inform you on ba-
sic motorcycle maintenance.
Certain maintenance can only
be carried out by certified staff.
UBSR81E0.book Page 1 Monday, April 3, 2023 10:39 AM

Safety information
2-2
2
Many accidents involve inexperi-
enced operators.
• Make sure that you are qualified
and that you only lend your mo-
torcycle to other qualified oper-
ators.
• Know your skills and limits.
Staying within your limits may
help you to avoid an accident.
• We recommend that you prac-
tice riding your motorcycle until
you have become thoroughly
familiar with the motorcycle and
all of its controls.
Many accidents have been
caused by error of the motorcycle
operator. A typical error made by
the operator is veering wide on a
turn due to excessive speed or un-
dercornering (insufficient lean an-
gle for the speed). Never travel
faster than warranted by condi-
tions.
Ride cautiously in unfamiliar ar-
eas. You may encounter hidden
obstacles that could cause an ac-
cident.
The posture of the operator is im-
portant for proper control. The op-
erator should keep both hands on
the handlebar and both feet on the
operator footrests during opera-
tion to maintain control of the mo-
torcycle.
Never ride under the influence of
alcohol or other drugs.
Be sure the transmission is in neu-
tral before starting the engine.
Protective Apparel
The majority of fatalities from motorcy-
cle accidents are the result of head in-
juries. The use of a safety helmet is the
single most critical factor in the pre-
vention or reduction of head injuries.
Always wear an approved helmet.
Wear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impairment
of vision that could delay seeing a
hazard.
The use of a jacket, heavy boots,
trousers, gloves, etc., is effective
in preventing or reducing abra-
sions or lacerations.
Never wear loose-fitting clothes,
otherwise they could catch on the
control levers, footrests, or wheels
and cause injury or an accident.
Always 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.
AvoidCarbon 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.
Carbon Monoxide is a colorless, odor-
less, tasteless gas which may be pres-
ent even if you do not see or smell any
engine exhaust. Deadly levels of car-
bon monoxide can collect rapidly and
you can quickly be overcome and un-
able to save yourself. Also, deadly lev-
els of carbon monoxide can linger for
hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poi-
UBSR81E0.book Page 2 Monday, April 3, 2023 10:39 AM