Page 1
OWNER’S MANUAL
DT125R
DT125X
1D0-F8199-E2
Page 2
Page 3
INTRODUCTION
EAU10100
Welcome to the Yamaha world of motorcycling!
As the owner of the DT125R/X, 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 DT125R/X. The owner’s
manual does not only instruct you in how to operate, inspect and maintain your motorcycle, 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 motorcycle in the best possible condition. If you have
any further questions, do not hesitate to contact your Yamaha dealer.
The Yamaha team wishes you many safe and pleasant rides. So, remember to put safety first!
Page 4
IMPORTANT MANUAL INFORMATION
Particularly important information is distinguished in this manual by the following notations:
EAU10150
t
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!
ss
WARNING Failure to follow WARNING instructions could result in severe injury or death to the
motorcycle operator, a bystander, or a person inspecting or repairing the motorcycle.
CAUTION A CAUTION indicates special precautions that must be taken to avoid damage to
the motorcycle.
NOTE: A NOTE provides key information to make procedures easier or clearer.
NOTE:
● This manual should be considered a permanent part of this motorcycle and should remain with it even if the
motorcycle is subsequently sold.
● Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the
most current product information available at the time of printing, there may be minor discrepancies between your
motorcycle and this manual. If you have any questions concerning this manual, please consult your Yamaha dealer.
EWA10030
ss
WARNING
PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING THIS MOTORCYCLE.
Page 5
IMPORTANT MANUAL INFORMATION
EAUS1171
DT125R/X
OWNER’S MANUAL
©2004 by YAMAHA MOTOR SPAIN S.A.
1st edition, July 2004
All rights reserved
Any reprinting or unauthorized use
without the written permission of
YAMAHA MOTOR SPAIN S.A.
is expressly prohibited.
Printed in Spain.
Page 6
TABLE OF CONTENTS
SAFETY INFORMATION.....................1-1
DESCRIPTION.....................................2-1
Left view ...........................................2-1
Right view .........................................2-2
Controls and instruments .................2-3
INSTRUMENTS AND CONTROL
FUNCTIONS ........................................3-1
Main switch/steering lock.................3-1
Indicator and warning lights .............3-2
Speedometer unit .............................3-3
Handlebar switches ..........................3-3
Clutch lever.......................................3-4
Shift pedal.........................................3-4
Brake lever........................................3-5
Brake pedal.......................................3-5
Fuel tank cap ....................................3-5
Catalytic converter............................3-6
2-stroke engine oil............................3-7
Fuel cock ..........................................3-7
Starter (choke) lever..........................3-8
Seat...................................................3-8
Shock absorber ................................3-9
YEIS handling precautions ...............3-9
YPVS.................................................3-9
Sidestand........................................3-10
Ignition circuit cut-off system.........3-10
PRE-OPERATION CHECKS...............4-1
Pre-operation check list....................4-2
OPERATION AND IMPORTANT RIDING
POINTS................................................5-1
Starting a cold engine ......................5-1
Starting a warm engine ....................5-2
Shifting..............................................5-2
Engine break-in.................................5-2
Parking..............................................5-3
PERIODIC MAINTENANCE AND
MINOR REPAIR...................................6-1
Owner’s tool kit.................................6-1
Periodic maintenance and
lubrication chart ............................6-2
Removing and installing cowlings
and panels.....................................6-5
Checking the spark plug ..................6-6
Transmission oil ................................6-7
Coolant .............................................6-8
Cleaning the air filter element
and check hose...........................6-10
Ajusting the carburetor ...................6-11
Adjusting the engine idling
speed...........................................6-12
Ajusting the throttle cable free
play..............................................6-12
Tires ................................................6-13
Spoke wheels .................................6-15
Adjusting the clutch lever free
play..............................................6-15
Adjusting the brake lever free
play..............................................6-16
Adjusting the brake pedal position
and free play................................6-17
Adjusting the rear brake light
switch ..........................................6-17
Checking the front and rear
brake pads ..................................6-18
Changing the brake fluid ................6-19
Checking the drive chain slack ......6-19
Adjusting the drive chain slack.......6-20
Lubricating the drive chain .............6-20
Checking and lubricating the
cables ..........................................6-21
Checking and lubricating the
throttle grip and cable.................6-21
Adjusting the autolube pump .........6-21
Checking and lubricating the
brake and shift pedals.................6-21
Checking and lubricating the
breake and clutch levers.............6-21
Checking and lubricating the
sidestand.....................................6-21
Checking the front fork...................6-22
Checking the steering.....................6-22
Checking the wheel bearings .........6-23
Replacing the fuse..........................6-24
Replacing the headlight bulb..........6-24
Replacing the tail/brake light
bulb .............................................6-25
Replacing the turn signal light
bulb .............................................6-26
Supporting the motorcycle.............6-26
Page 7
Front wheel .....................................6-26
Rear wheel......................................6-28
Troubleshooting ..............................6-29
MOTORCYCLE CARE AND
STORAGE ........................................7-1
Care ..................................................7-1
Storage .............................................7-3
SPECIFICATIONS ...............................8-1
Specifications ...................................8-1
CONSUMER INFORMATION .............9-1
Identification numbers ......................9-1
TABLE OF CONTENTS
Page 8
t
SAFETY INFORMATION
MOTORCYCLES ARE SINGLE
TRACK VEHICLES. THEIR SAFE USE
1
AND OPERATION ARE DEPENDENT
UPON THE USE OF PROPER RIDING
TECHNIQUES AS WELL AS THE
EXPERTISE OF THE OPERATOR.
EVERY OPERATOR SHOULD KNOW
THE FOLLOWING REQUIREMENTS
BEFORE RIDING THIS MOTORCYCLE.
HE OR SHE SHOULD:
● OBTAIN THOROUGH INSTRUC-
TIONS FROM A COMPETENT
SOURCE ON ALL ASPECTS OF
MOTORCYCLE OPERATION.
● OBSERVE THE WARNINGS AND
MAINTENANCE REQUIREMENTS IN THE OWNER’S
MANUAL.
● OBTAIN QUALIFIED TRAINING
IN SAFE AND PROPER RIDING
TECHNIQUES.
● OBTAIN PROFESSIONAL TECH-
NICAL SERVICE AS INDICATED
BY THE OWNER’S MANUAL
AND/OR WHEN MADE NECESSARY BY MECHANICAL CONDITIONS.
EAU10310
Safe riding
● Always make pre-operation
checks. Careful checks may help
prevent an accident.
● This motorcycle is designed to
carry the operator and a passenger.
● The failure of motorists to detect
and recognize motorcycles in
traffic 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 appears to be very
effective in reducing the chance
of this type of accident.
Therefore:
• Wear a brightly colored jacket.
• Use extra caution when approaching and passing through
intersections, since intersections 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.
1-1
● Many accidents involve inexpe-
rienced operators. In fact, many
operators who have been involved in accidents do not even
have a current motorcycle license.
• Make sure that you are qualified and that you only lend your
motorcycle to other qualified
operators.
• Know your skills and limits.
Staying within your limits may
help you to avoid an accident.
• We recommend that you practice riding your motorcycle
where there is no traffic until
you have become thoroughly
familiar with the motorcycle
and all of its controls.
● Many accidents have been cau-
sed by error of the motorcycle
operator. A typical error made by
the operator is veering wide on a
turn due to EXCESSIVE SPEED
or undercornering (insufficient
lean angle for the speed).
Page 9
SAFETY INFORMATION
t
• Always obey the speed limit
and never travel faster than
warranted by road and traffic
conditions.
• Always signal before turning or
changing lanes. Make sure that
other motorists can see you.
● The 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 footrests during operation to
maintain control of the
motorcycle.
• 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.
● Never ride under the influence of
alcohol or other drugs.
Protective apparel
The majority of fatalities from
motorcycle accidents are the result of
head injuries. The use of a safety helmet is the single most critical factor in
the prevention or reduction of head
injuries.
● Always wear an approved hel-
met.
● 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 abrasions or lacerations.
● Never wear loose-fitting clothes,
otherwise they could catch on
the control levers, footrests, or
wheels and cause injury or an
accident.
● Never touch the engine or
exhaust system during or after
operation. They become very hot
and can cause burns. Always
wear protective clothing that
covers your legs, ankles, and
feet.
● Passengers should also observe
the precautions mentioned above.
Modifications
Modifications made to this motorcycle not approved by Yamaha, or the
removal of original equipment, may
render the motorcycle unsafe for use
and may cause severe personal injury.
Modifications may also make your
motorcycle illegal to use.
1
1-2
Page 10
t
SAFETY INFORMATION
Loading and accessories
Adding accessories or cargo to your
motorcycle can adversely affect sta-
1
bility and handling if the weight distribution of the motorcycle is changed.
To avoid the possibility of an accident, use extreme caution when
adding cargo or accessories to your
motorcycle. Use extra care when
riding a motorcycle that has added
cargo or accessories. Here are some
general guidelines to follow if loading
cargo or adding accessories to your
motorcycle:
Loading
The total weight of the operator, passenger, accessories and cargo must
not exceed the maximum load limit of
178 kg (392 lb) DT125R, 180 kg (396
lb) DT125X. When loading within this
weight limit, keep the following in
mind:
● Cargo and accessory weight
should be kept as low and close
to the motorcycle as possible.
Make sure to distribute the
weight as evenly as possible on
both sides of the motorcycle to
minimize imbalance or instability.
● Shifting weights can create a
sudden imbalance. Make sure
that accessories and cargo are
securely attached to the
motorcycle before riding. Check
accessory mounts and cargo restraints frequently.
● Never attach any large or heavy
items to the handlebar, front fork,
or front fender. These items,
including such cargo as sleeping
bags, duffel bags, or tents, can
create unstable handling or a
slow steering response.
Accessories
Genuine Yamaha accessories have
been specifically designed for use on
this motorcycle. Since Yamaha cannot test all other accessories that may
be available, you must personally be
responsible for the proper selection,
installation and use of non-Yamaha
accessories. Use extreme caution
when selecting and installing any
accessories.
Keep the following guidelines in mind,
as well as those provided under “Loading” when mounting accessories.
1-3
● Never install accessories or carry
cargo that would impair the performance of your motorcycle.
Carefully inspect the accessory
before using it to make sure that
it does not in any way reduce
ground clearance or cornering
clearance, limit suspension travel, steering travel or control operation, or obscure lights or reflectors.
• Accessories fitted to the handlebar or the front fork area can
create instability due to improper weight distribution or
aerodynamic changes. If
accessories are added to the
handlebar or front fork area,
they must be as lightweight as
possible and should be kept to
a minimum.
Page 11
SAFETY INFORMATION
t
• Bulky or large accessories may
seriously affect the stability of
the motorcycle due to aerodynamic effects. Wind may
attempt to lift the motorcycle,
or the motorcycle may become
unstable in cross winds. These
accessories may also cause
instability when passing or
being passed by large vehicles.
• Certain accessories can displace the operator from his or
her normal riding position. This
improper position limits the freedom of movement of the operator and may limit control ability, therefore, such
accessories are not recommended.
● Use caution when adding electri-
cal accessories. If electrical
accessories exceed the capacity
of the motorcycle’s electrical system an electric failure could
result, which could cause a dangerous loss of lights or engine
power.
Gasoline and exhaust gas
● GASOLINE IS HIGHLY FLAMMA-
BLE:
• Always turn the engine off
when refueling.
• Take care not to spill any gasoline on the engine or exhaust
system when refueling.
• Never refuel while smoking or
in the vicinity of an open flame.
● Never start the engine or let it run
for any length of time in a closed
area. The exhaust fumes are poisonous and may cause loss of
consciousness and death within
a short time. Always operate your
motorcycle in an area that has
adequate ventilation.
● Always turn the engine off before
leaving the motorcycle unattended and remove the key from the
main switch. When parking the
motorcycle, note the following:
• The engine and exhaust system may be hot, therefore,
park the motorcycle in a place
where pedestrians or children
are not likely to touch these hot
areas.
1-4
• Do not park the motorcycle on
a slope or soft ground, otherwise it may fall over.
• Do not park the motorcycle
near a flammable source (e.g.,
a kerosene heater, or near an
open flame), otherwise it could
catch fire.
● When transporting the motorcy-
cle in another vehicle, make sure
that it is kept upright and that the
fuel cock(s) are turned to “ON” or
“RES” (for vacuum type)/”OFF”
(for manual type). If the motorcycle should lean over, gasoline
may leak out of the carburetor or
fuel tank.
● If you should swallow any gasoli-
ne, inhale a lot of gasoline vapor,
or allow gasoline to get into your
eyes, see your doctor immediately. If any gasoline spills on your
skin or clothing, immediately
wash the affected area with soap
and water and change your clothes.
1
Page 12
DESCRIPTION
Left view
2
1. Headlight (page 6-24)
2. Radiator cover (page 6-5)
3. Fuel cock (page 3-7)
4. Air filter (page 6-10)
5. Choke lever (page 3-8)
6. Shift pedal (page 3-4)
7. Y.E.I.S (page 3-9)
8. Y.P.V.S. (page 3-9)
9. Oil tank (page 3-7)
1 7
8 5
2
EAU10410
9
63 4
2-1
Page 13
Right view
DESCRIPTION
EAU10420
11. Tool kit (page 6-1)
12. Fuse (page 6-24)
13. Coolant tank (page 6-8)
14. Rear brake pedal (page 3-5)
13
11
2
12 14
2-2
Page 14
DESCRIPCION
0
k
m
/
h
40
60
80
100
120
130
20
y
0
0
0
0
1
5
000
8
Controls and instruments
EAU10430
2
16. Clutch lever (page 3-4)
17. Left handlevar swicht (page 3-3)
18. Speedometer (Page 3-3)
19. Coolant temperature warning lamp (page 3-3)
20. Indicators (page 3-2)
21. Right handlevar swicht (page 3-3)
22. Front brake lever (page 3-5)
23. Throttle grip (page 6-12)
24. Fuel tank cap (page 3-5)
25. Main Switch (page 3-1)
16
17
18 19
20
2524
21
22
23
2-3
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O
N
O
F
F
P
U
S
H
L
O
C
K
I
G
N
I
T
I
O
N
INSTRUMENT AND CONTROL FUNCTIONS
EAU10460
Main switch/steering lock
The main switch/steering lock controls the ignition and lighting systems,
and is used to lock the steering. The
various positions are described
below.
EAU10550
ON
All electrical circuits are supplied with
power, the meter lighting, taillight,
license plate light and auxiliary lights
come on, and the engine can be started. The key cannot be removed.
NOTE:
The headlights come on automatically
when the engine is started and stay
on until the key is turned to “OFF”,
even if the engine stalls.
EAU10660
OFF
All electrical systems are off. The key
can be removed.
EAU10680
LOCK
The steering is locked, and all electrical systems are off. The key can be
removed.
To lock the steering
1. Turn the handlebars all the way to
the left.
2. Push the key in from the “OFF”
position, and then turn it to
“LOCK” while still pushing it.
3. Remove the key.
To unlock the steering
Push the key in, and then turn it to
“OFF” while still pushing it.
EWA10060
ss
WARNING
Never turn the key to “OFF” or
“LOCK” while the vehicle is
moving, otherwise the electrical
systems will be switched off, which
may result in loss of control or an
accident. Make sure that the vehicle is stopped before turning the
key to “OFF” or “LOCK”.
3
3-1
Page 16
0
km/h
40
60
80
100
120
130
20
y
00001
5
0008
b
j
z
N
INSTRUMENT AND CONTROL FUNCTIONS
Indicator and warning lights
1
3
2
4
1. Turn signal indicator light “b”
2. Dimmer indicator light “j”
3. Neutral indicator light “N”
4. Oil level warning light “z”
Turn signal indicator lights “c” and
“d”
The corresponding indicator light flashes when the turn signal switch is
pushed to the left or right.
Neutral indicator light “N”
This indicator light comes on when
the transmission is in the neutral position.
EAU11002
3
EAU11030
EAU11070
EAU11080
High beam indicator light “j”
This indicator light comes on when
the high beam of the headlight is switched on.
EAU11180
Oil level warning light “z”
This warning light comes on when the
key is in the “ON” position or when
the oil level in the 2-stroke engine oil
tank is low during operation. If the
warning light comes on during operation, stop immediately and fill the oil
tank with Yamalube 2 or equivalent 2stroke engine oil of either JASO grade
“FC” or ISO grades “EG-C” or “EGD”. The warning light should go off
after the 2-stroke engine oil tank has
been refilled.
NOTE:
If the warning light does not come on
when the key is in the “ON” position
or does not go off after the 2-stroke
engine oil tank has been refilled, have
a Yamaha dealer check the electrical
circuit.
ECA10010
CAUTION
Do not operate the vehicle until you
know that the engine oil level is sufficient.
EAU11430
Coolant temperature warning light
“y”
This warning light comes on when the
engine overheats. When this occurs,
stop the engine immediately and
allow the engine to cool.
ECA10020
CAUTION
Do not operate the engine if it is
overheated.
3-2
Page 17
0
km
/h
40
60
80
100
120
130
20
y
00001
5
000
8
b
j
z
N
INSTRUMENT AND CONTROL FUNCTIONS
EAU11640
Speedometer unit
1
4
3
1. Odometer
2. Tripmeter
3. Reset button
4. Coolant temperature warning lamp
The speedometer unit is equipped
with a speedometer, an odometer and
a tripmeter. The speedometer shows
riding speed. The odometer shows
the total distance traveled. The tripmeter shows the distance traveled
since it was last set to zero with the
reset knob. The tripmeter can be used
to estimate the distance that can be
traveled with a full tank of fuel. This
information will enable you to plan
future fuel stops.
2
NOTE:
Only for the German model equipped
with a speed limiter:
The speed limiter prevents the vehicle
from exceeding a riding speed of 80
km/h.
EAU12343
Handlebar switches
1
4
3
2
1. Dimmer switch “j/k”
2. Horn switch “a”
3. Turn signal switch “c/d”
4. Hazard switch “ ”
EAU12400
Dimmer switch “j/k”
Set this switch to “j” for the high
beam and to “k” for the low beam.
3-3
EAU12460
Turn signal switch “c/d”
To signal a right-hand turn, push this
switch to “d”. To signal a left-hand
turn, push this switch to “c”. When
released, the switch returns to the
center position. To cancel the turn
signal lights, push the switch in after it
has returned to the center position.
EAU12500
Horn switch “a”
Press this switch to sound the horn.
EAU12660
Engine stop switch “f/e”
1
2
1. Stop switch “f/e”
2. Start switch “g”
Set this switch to “f” before starting
the engine. Set this switch to “e” to
3
Page 18
INSTRUMENT AND CONTROL FUNCTIONS
stop the engine in case of an emergency, such as when the motorcycle
overturns or when the throttle cable is
stuck.
Start switch “g”
Push this switch to crank the engine
3
with the starter.
CAUTION
See page 5-1 for starting instructions prior to starting the engine.
Hazard switch “ ”
With the key in the “ON” position, turn
this switch to “ ” to turn on the
hazard lights (simultaneous flashing
of all turn signal lights).
The hazard lights are used in case of
an emergency or to warn other drivers
when your vehicle is stopped where it
might be a traffic hazard.
CAUTION
Do not use the hazard light for an
extended length of time, otherwisethe battery may discharge.
EAU12710
ECA10050
EAU12763
ECA10060
EAU12820
Clutch lever
1
1. Clutch lever
The clutch lever is located at the left
handlebar grip. To disengage the
clutch, pull the lever toward the handlebar grip. To engage the clutch, release the lever. The lever should be
pulled rapidly and released slowly for
smooth clutch operation.
The clutch lever is equipped with a
clutch switch, which is part of the
ignition circuit cut-off system. (See
page 3-11.)
EAU12880
Shift pedal
1
N. Neutral
1. Shift pedal
The shift pedal is located on the left
side of the engine and is used in combination with the clutch lever when
shifting the gears of the 6-speed
constant-mesh transmission equipped on this motorcycle.
NOTE:
Use your toes or heel to shift up and
your toes to shift down.
3-4
Page 19
INSTRUMENT AND CONTROL FUNCTIONS
EAU12890
Brake lever
1
1. Brake lever
The brake lever is located at the right
handlebar grip. To apply the front brake, pull the lever toward the handlebar grip.
EAU12941
Brake pedal
1
1. Brake pedal
The brake pedal is on the right side of
the motorcycle. To apply the rear brake, press down on the brake pedal.
EAU13150
Fuel tank cap
To remove the fuel tank cap
1. Insert the key into the lock and
turn it 1/4 turn counterclockwise.
2. Turn the fuel tank cap 1/3 turn
counterclockwise and pull it off.
3
2
1
3
1. Fuel tank cap
2. Unlock
3. Open
To install the fuel tank cap
1. Insert the fuel tank cap into the
tank opening with the key inserted in the lock, and then turn the
cap 1/3 turn clockwise.
2. Turn the key 1/4 turn clockwise,
and then remove it.
3-5
Page 20
INSTRUMENT AND CONTROL FUNCTIONS
NOTE:
The fuel tank cap cannot be installed
unless the key is in the lock. In addition, the key cannot be removed if the
cap is not properly installed and locked.
ss
3
WARNING
Make sure that the fuel tank cap is
properly closed and locked before
riding.
Fuel
Make sure that there is sufficient fuel
in the tank. When refueling, be sure to
insert the pump nozzle into the fuel
tank filler hole and to fill the tank to
the bottom of the filler tube as shown.
1. Filing pipe
2. Fuel level
EWA10120
EAU13220
1
2
EWA10880
ss
WARNING
● Do not overfill the fuel tank,
otherwise it may overflow
when the fuel warms up and
expands.
● Avoid spilling fuel on the hot
engine.
ECA10070
CAUTION
Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfaces or plastic parts.
EAU13320
Recommended fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
10,7 L (2,82 US gal) (2,35 Imp.gal)
Fuel reserve amount:
1,8 L (0,48 US gal) (0,40 Imp.gal)
3-6
ECA11400
CAUTION
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.
Your Yamaha engine has been designed to use regular unleaded gasoline
with a research octane number of 91
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.
EAU13430
Catalytic converter
This model is equipped with a catalytic converter in the exhaust chamber.
ss
WARNING
The exhaust system is hot after
operation. Make sure that the
exhaust system has cooled down
before doing any maintenance
work.
EWA10860
Page 21
INSTRUMENT AND CONTROL FUNCTIONS
ECA10700
CAUTION
The following precautions must be
observed to prevent a fire hazard or
other damages.
● Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.
● Never park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
● Do not allow the engine to idle
too long.
EAU13460
2-stroke engine oil
1
2
Make sure that there is sufficient oil in
the 2-stroke engine oil tank. Add the
recommended 2-stroke engine oil if
necessary.
NOTE:
Make sure that the 2-stroke engine oil
tank cap is properly installed.
Recommended oil:
Yamalube 2 or equivalent 2-stroke
engine oil (JASO grade “FC”, or ISO
grades “EG-C” or “EG-D”)
Oil quantity:
1,3 L (1,37 US qt) (0,29 Imp.qt)
EAU13560
Fuel cock
The fuel cock supplies fuel from the
tank to the carburetor while filtering it
also.
The fuel cock has three positions:
OFF
1
1. Arrow mark
With the lever in this position, fuel will
not flow. Always return the lever to
this position when the engine is not
running.
ON
1
3
1. Oil tank cap
2. Sensor
With the lever in this position, fuel
flows to the carburetor. Normal riding
is done with the lever in this position.
3-7
Page 22
INSTRUMENT AND CONTROL FUNCTIONS
RES
3
1
This indicates reserve. If you run out
of fuel while riding, move the lever to
this position. Fill the tank at the first
opportunity. Be sure to set the lever
back to “ON” after refueling!
Starter (choke) lever “q”
EAU13590
Starting a cold engine requires a
richer air-fuel mixture, which is supplied by the starter (choke).
Move the lever in direction (a) to turn
on the starter (choke).
Move the lever in direction (b) to turn
off the starter (choke).
EAU13960
Seat
To remove the seat
Remove the bolts, and then pull the
seat off.
1
1. Bolt (x2)
To install the seat
1. Insert the projections on the front
of the seat into the seat holders
as shown.
2. Place the seat in the original
position, and then tighten the
bolts.
NOTE:
Make sure that the seat is properly
secured before riding.
1. Choke lever
3-8
Page 23
INSTRUMENT AND CONTROL FUNCTIONS
EAU15090
Shock absorber
ss
WARNING
EWA10220
This shock absorber contains
highly pressurized nitrogen gas.
For proper handling, read and
understand the following information before handling the shock
absorber. The manufacturer cannot
be held responsible for property
damage or personal injury that may
result from improper handling.
● Do not tamper with or attempt
to open the gas cylinder.
● Do not subject the shock
absorber to an open flame or
other high heat sources, otherwise it may explode due to
excessive gas pressure.
● Do not deform or damage the
gas cylinder in any way, as this
will result in poor damping performance.
● Always have a Yamaha dealer
service the shock absorber.
EAU15250
YEIS handling precautions
1
1. YEIS
Improper installation of or damage to
any part of the YEIS (Yamaha Energy
Induction System) will result in poor
performance. Therefore, handle the
YEIS air chamber and air chamber
hose with special care and immediately replace any cracked or damaged
parts.
CAUTION
Do not attempt to modify the YEIS
in any way.
ECA10140
EAU15260
YPVS
1
3
1. YPVS
This model is equipped with the YPVS
(Yamaha Power Valve System). This
system boosts engine performance
and efficiency by means of a variable
valve in the exhaust port. The YPVS
valve is constantly adjusted in accordance with the engine speed by a
computer-controlled servomotor.
Since the YPVS is an important part
of the engine and requires very sophisticated adjustment, have a Yamaha
dealer, who has the necessary professional knowledge and experience,
make this adjustment.
3-9
Page 24
INSTRUMENT AND CONTROL FUNCTIONS
CAUTION
The YPVS has been set and extensively tested at the Yamaha factory.
Changing these settings without
sufficient technical knowledge may
result in poor performance of or
damage to the engine.
3
YPVS operation noises can be heard
in the following instances:
● When the key is turned to “ON”
and the engine is started.
● When the engine stalls with the
key in the “ON” position.
CAUTION
If the YPVS does not operate, have
a Yamaha dealer check it.
Sidestand
The sidestand is located on the left
side of the frame. Raise the sidestand
or lower it with your foot while holding
the motorcycle upright.
ECA10150
ECA10160
EAU15300
NOTE:
The built-in sidestand switch is part of
the ignition circuit cut-off system,
which cuts the ignition in certain
situations. (See further down for an
explanation of the ignition circuit cutoff system.)
EWA10240
ss
WARNING
The vehicle must not be ridden with
the sidestand down, or if the sidestand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control. Yamaha’s ignition circuit cut-off system
has been designed to assist the
operator in fulfilling the responsibility of raising the sidestand before
starting off. Therefore, check this
system regularly as described
below and have a Yamaha dealer
repair it if it does not function properly.
EAU15311
Ignition circuit cut-off
system
The ignition circuit cut-off system
(comprising the sidestand switch,
clutch switch and neutral switch) has
the following functions.
● It prevents starting when the
transmission is in gear and the
sidestand is up, but the clutch
lever is not pulled.
● It prevents starting when the
transmission is in gear and the
clutch lever is pulled, but the
sidestand is still down.
● It cuts the running engine when
the transmission is in gear and
the sidestand is moved down.
Periodically check the operation of
the ignition circuit cut-off system
according to the following procedure.
EWA10250
ss
WARNING
If a malfunction is noted, have a
Yamaha dealer check the system
before riding.
3-10
Page 25
INSTRUMENT AND CONTROL FUNCTIONS
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is turned on.
3. Turn the key on.
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can be ridden.
This check is most reliable if performed with
a warmed-up engine.
The neutral switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The sidestand switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The clutch switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
YES NO
YES NO
YES NO
NOTE:
NOTE:
This check is most reliable if performed with a warmed-up engine.
3-11
3
Page 26
PRE-OPERATION CHECKS
EAU15591
The condition of a vehicle is the
owner’s responsibility. Vital components can start to deteriorate quickly
and unexpectedly, even if the vehicle
remains unused (for example, as a
result of exposure to the elements).
Any damage, fluid leakage or loss of
tire air pressure could have serious
consequences. Therefore, it is very
important, in addition to a thorough
4
visual inspection, to check the following points before each ride.
NOTE:
Pre-operation checks should be
made each time the vehicle is used.
Such an inspection can be accomplished in a very short time; and the
added safety it assures is more than
worth the time involved.
EWA11150
ss
WARNING
If any item in the Pre-operation
check list is not working properly,
have it inspected and repaired
before operating the vehicle.
4-1
Page 27
PRE-OPERATION CHECKS
Pre-operation check list
ITEM CHECKS PAGE
Fuel • Refuel if necessary. 3-6
2-stroke engine oil • If necessary, add recommended oil to specified level. 3-7
Transmission oil
Coolant • If necessary, add recommended coolant to specified level. 6-8
Front brake
Rear brake
Clutch
Throttle grip
• Check fuel level in fuel tank.
• Check fuel line for leakage.
• Check oil level in oil tank.
• Check vehicle for oil leakage.
• Check oil level in transmission case.
• If necessary, add recommended oil to specified level.
• Check coolant level in reservoir.
• Check cooling system for leakage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary.
• Make sure that operation is smooth.
• Check cable free play.
• If necessary, have Yamaha dealer adjust cable free play and lubricate
cable andgrip housing.
4-2
6-16/6-18
6-16/6-18
6-12/6-21
EAU15603
6-7
4
6-15
Page 28
PRE-OPERATION CHECKS
Control cables
Drive chain
Wheels and tires
Brake and shift pedals • Make sure that operation is smooth.
Brake and clutch levers • Make sure that operation is smooth.
4
Sidestand
Chassis fasteners
Instruments, lights, • Check operation.
signals and switches • Correct if necessary.
Engine stop switch • Check operation. 3-3
Sidestand switch
• Make sure that operation is smooth.
• Lubricate if necessary.
• Check chain slack.
• Adjust if necessary.
• Check chain condition.
• Lubricate if necessary.
• Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary.
• Lubricate pedal pivoting points if necessary.
• Lubricate lever pivoting points if necessary.
• Make sure that operation is smooth.
• Lubricate pivot if necessary.
• Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary.
• Check operation of ignition circuit cut-off system.
• If system is defective, have Yamaha dealer check vehicle.
6-21
6-19/6-20
6-13
6-21
6-21
6-21
–
–
3-11
4-3
Page 29
OPERATION AND IMPORTANT RIDING POINTS
EAU15950
EWA10270
ss
WARNING
● Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or function that you do not thoroughly
understand.
● Never start the engine or ope-
rate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of consciousness and death within a
short time. Always make sure
that there is adequate ventilation.
● Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised completely, it could contact the
ground and distract the operator, resulting in a possible loss
of control.
EAU16060
Starting a cold engine
In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:
● The transmission is in the neutral
position.
● The transmission is in gear with
the clutch lever pulled and the
sidestand up.
ss
WARNING
● Before starting the engine,
check the function of the ignition circuit cut-off system
according to the procedure
described on page 3-11.
● Never ride with the sidestand
down.
1. Turn the fuel cock lever to “ON”.
2. Turn the key to “ON” and make
sure that the engine stop switch
is set to “f”.
3. Shift the transmission into the
neutral position.
EWA10290
NOTE:
When the transmission is in the neutral position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical
circuit.
4. Turn the starter (choke) on and
completely close the throttle.
(See page 3-8.)
5. Start the engine by pushing the
start switch.
NOTE:
If the engine fails to start, release the
start switch, wait a few seconds, and
then try again. Each starting attempt
should be as short as possible to preserve the battery. Do not crank the
engine more than 10 seconds on any
one attempt.
6. After starting the engine, move
the starter (choke) back halfway.
ECA11040
CAUTION
For maximum engine life, never
accelerate hard when the engine is
cold!
5
5-1
Page 30
OPERATION AND IMPORTANT RIDING POINTS
7. When the engine is warm, turn
the starter (choke) off.
NOTE:
The engine is warm when it responds
normally to the throttle with the starter
(choke) turned off.
Starting a warm engine
Follow the same procedure as for
starting a cold engine with the exception that the starter (choke) is not
5
required when the engine is warm.
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
illustration.
EAU16640
EAU16671
1
N. Neutral
1. Shift pedal
NOTE:
To shift the transmission into the neutral position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it.
ECA10260
CAUTION
● 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
distances. The transmission is
properly lubricated only when
the engine is running. Inadequate lubrication may damage
the transmission.
5-2
● Always use the clutch while
changing gears to avoid damaging the engine, transmission,
and drive train, which are not
designed to withstand the
shock of forced shifting.
EAU16830
Engine break-in
There is never a more important
period in the life of your engine than
the period between 0 and 1000 km
(600 mi). For this reason, you should
read the following material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1000 km (600 mi). The various parts in
the engine wear and polish themselves to the correct operating clearances. During this period, prolonged
full-throttle operation or any condition
that might result in engine overheating must be avoided.
EAU17150
0–150 km (0–90 mi)
Avoid prolonged operation above 1/3
throttle.
Page 31
OPERATION AND IMPORTANT RIDING POINTS
After every hour of operation, stop the
engine, and then let it cool for five to
ten minutes.
Vary the engine speed from time to
time. Do not operate the engine at
one set throttle position.
150–500 km (90–300 mi)
Avoid prolonged operation above 1/2
throttle.
Rev the engine freely through the
gears, but do not use full throttle at
any time.
500–1000 km (300–600 mi)
Avoid prolonged operation above 3/4
throttle.
ECA10370
CAUTION
After 1000 km (600 mi) of operation,
the transmission oil must be changed.
1000 km (600 mi) and beyond
Avoid prolonged full-throttle operation. Vary the engine speed occasionally.
ECA10270
CAUTION
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.
EAU17180
Parking
When parking, stop the engine, remove the key from the main switch, and
then turn the fuel cock lever to “OFF”.
ss
WARNING
● Since the engine and exhaust
system can become very hot,
park in a place where pedestrians or children are not likely
to touch them.
● Do not park on a slope or on
soft ground, otherwise the
vehicle may overturn.
CAUTION
Never park in an area where there
are fire hazards such as grass or
other flammable materials.
EWA10310
ECA10380
5
5-3
Page 32
PERIODIC MAINTENANCE AND MINOR REPAIR
Safety is an obligation of the owner.
Periodic inspection, adjustment and
lubrication will keep your vehicle in
the safest and most efficient condition possible. The most important
points of inspection, adjustment, and
lubrication are explained on the following pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a
general guide under normal riding
conditions. However, DEPENDING
ON THE WEATHER, TERRAIN, GEO-
6
GRAPHICAL LOCATION, AND INDIVIDUAL USE, THE MAINTENANCE
INTERVALS MAY NEED TO BE
SHORTENED.
ss
WARNING
If you are not familiar with maintenance work, have a Yamaha dealer
do it for you.
EAU17240
EWA10320
EAU17320
Owner’s tool kit
1
1. Tool kit
The service information included in
this manual and the tools provided in
the owner’s tool kit are intended to
assist you in the performance of preventive maintenance and minor
repairs. However, additional tools
such as a torque wrench may be
necessary to perform certain maintenance work correctly.
NOTE:
If you do not have the tools or experience required for a particular job,
have a Yamaha dealer perform it for
you.
EWA10350
ss
WARNING
Modifications not approved by
Yamaha may cause loss of performance and render the vehicle
unsafe for use. Consult a Yamaha
dealer before attempting any changes.
6-1
Page 33
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU17710
Periodic maintenance and lubrication chart
NOTE:
● The annual checks must be performed every year, except if a kilometer-based maintenance is performed
instead.
● From 30000 km, repeat the maintenance intervals starting from 6000 km.
● Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and
technical skills.
ODOMETER READING (x 1000 Km) ANNUAL
No ITEM CHECK OR MAINTENANCE JOB 1 6 12 18 24
1*Fuel line • Check fuel hoses for cracks or damage. √√√√ √
2 Spark plug • Replace. √√√√ √
3 Air filter element
4 Clutch
5*Front brake
6*Rear brake
7*Brake hoses
8*Wheels
• Clean. √√
• Replace. √√
• Check operation.
• Adjust.
• Check operation, fluid level and vehicle for fluid leakage. √√ √ √√ √
• Replace brake pads. Whenever worn to the limit
• Check operation, fluid level and vehicle for fluid leakage. √√ √ √√ √
• Replace brake pads. Whenever worn to the limit
• Check for cracks or damage. √√√√ √
• Replace. Every 4 years
• Check runout, spoke tightness and for damage.
• Tighten spokes if necessary.
6-2
√√ √ √√
√√√√
CHECK
6
Page 34
PERIODIC MAINTENANCE AND MINOR REPAIR
ODOMETER READING (x 1000 Km) ANNUAL
No ITEM CHECK OR MAINTENANCE JOB 1 6 12 18 24
• Check tread depth and for damage.
9*Tires
10 * Wheel bearings • Check bearing for looseness or damage. √√√√
11 * Swingarm
12 Drive chain • Adjust and lubricate chain with a special O-ring chain
13 * Steering bearings
6
14 * Chassis fasteners
15 Sidestand
16 * Sidestand switch • Check operation. √√ √ √√ √
17 * Front fork • Check operation and for oil leakage. √√√√
18 * Shock absorber assembly •Check operation and shock absorber for oil leakage. √√√√
Rear suspension relay • Check operation. √√√√
arm and connecting arm
19 *
pivoting points
20 * Carburetor
21 * Autolube pump
• Replace if necessary.
• Check air pressure.
• Correct if necessary.
• Check operation and for excessive play. √√√√
• Lubricate with lithium-soap-based grease. Every 24000 km
• Check chain slack, alignment and condition.
lubricant thoroughly.
• Check bearing play and steering for roughness. √√ √ √√
• Lubricate with lithium-soap-based grease. Every 50000 km
• Make sure that all nuts, bolts and screws
are properly tightened.
• Check operation.
• Lubricate.
• Lubricate with lithium-soap-based grease.
• Check starter (choke) operation.
• Adjust engine idling speed.
• Check operation.
• Bleed if necessary.
√√√√ √
Every 500 km and after washing the
motorcycle or riding in the rain
√√√√ √
√√√√ √
√√
√√ √ √√ √
√√√√
CHECK
6-3
Page 35
PERIODIC MAINTENANCE AND MINOR REPAIR
ODOMETER READING (x 1000 Km) ANNUAL
No ITEM CHECK OR MAINTENANCE JOB 1 6 12 18 24
22 Transmission oil
23 * Cooling system
Front and rear
24 *
brake switches
25 Moving parts and cables • Lubricate. √√√√ √
Throttle grip
26 * •Adjust the throttle cable free play if necessary. √√√√ √
housing and cable
27 * Muffler and exhaust pipe • Check the screw clamp for looseness. √√ √ √√
Lights, signals • Check operation.
28 *
and switches • Adjust headlight beam.
• Check oil level. √√ √ √√ √
• Change. √√
• Check coolant level and vehicle for coolant leakage. √√√√ √
• Change. Every 3 years
• Check operation. √√ √ √√ √
• Check operation and free play.
• Lubricate the throttle grip housing and cable.
√√ √ √√ √
CHECK
EAU18670
NOTE:
● The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
● Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinders and calipers, and change the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged.
6
6-4
Page 36
PERIODIC MAINTENANCE AND MINOR REPAIR
Removing and installing
cowlings and panels
3
1. Cowling A
2. Cowling B
3. Panel D
6
1. Cowling C
2. Panel E
2
1
EAU18711
1
The cowlings and panels shown need
to be removed to perform some of the
maintenance jobs described in this
chapter. Refer to this section each
time a cowling or panel needs to be
Cowlings B and C
To remove one of the cowlings
Remove the cowling screws, and then
pull the cowling off as shown.
EAU18980
removed and installed.
EAU18890
1
Cowling A
1. Screws (x3)
2
1
To install the cowling
Place the cowling in the original posi-
1. Screws (x 3)
To remove the cowling
tion, and then install the screws.
1
Remove the cowling screws, and then
pull the cowling off as shown.
To install the cowling
Place the cowling in the original position, and then install the screws.
6-5
1. Screws (x3)
Page 37
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU19292
Panels D and E
1
1. Screw
To remove one of the panels
Remove the screw, and then pull the
panel off as shown.
To install the panel
Place the panel in the original position, and then install the screw.
EAU19620
Checking the spark plug
1
1. Spark plug inspection
The spark plug is an important engine
component, which should be checked periodically, preferably by a
Yamaha dealer. Since heat and deposits will cause any spark plug to
slowly erode, it should be removed
and checked in accordance with the
periodic maintenance and lubrication
chart. In addition, the condition of the
spark plug can reveal the condition of
the engine.
The porcelain insulator around the
center electrode of the spark plug
should be a medium-to-light tan (the
ideal color when the vehicle is ridden
normally). If the spark plug shows a
distinctly different color, the engine
could be defective. Do not attempt to
diagnose such problems yourself.
Instead, have a Yamaha dealer check
the vehicle.
If the spark plug shows signs of electrode erosion and excessive carbon
or other deposits, it should be replaced.
Specified spark plug:
BR8ES (NGK)
Before installing a spark plug, the
spark plug gap should be measured
with a wire thickness gauge and, if
necessary, adjusted to specification.
Spark plug gap:
0,7-0,8 mm (0,0276-0,0315 in)
6
6-6
Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the
spark plug threads.
Page 38
PERIODIC MAINTENANCE AND MINOR REPAIR
Tightening torque:
Spark plug:
20 Nm (2 m•kgf)
NOTE:
If a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is
1/4–1/2 turn past finger tight. However, the spark plug should be tightened to the specified torque as soon
as possible.
6
Transmission oil
2
3
1
EAU19950
The transmission oil level should be
checked before each ride. In addition,
the transmission oil must be changed
at the intervals specified in the periodic maintenance and lubrication
chart.
To check the transmission oil level
1. Place the vehicle on a level surface and hold it in an upright position.
NOTE:
Make sure that the vehicle is positioned straight up when checking the oil
level. A slight tilt to the side can result
in a false reading.
1
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil
settles, and then check the oil
level through the check window
located at the right side of the
crankcase.
NOTE:
The transmission oil should be at or
above the minimum level mark.
4. If the oil is below the minimum
level mark, remove the oil filler
cap, add sufficient oil of the
recommended type to raise it to
the correct level, and then install
and tighten the cap.
To change the transmission oil
1
1. Oil level window
2. Maximum level mark
3. Minimum level mark
1. Plug to fill with oil
1. Drain bolt
6-7
Page 39
FULL
LOW
PERIODIC MAINTENANCE AND MINOR REPAIR
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the transmission to collect the used oil.
3. Remove the oil filler cap and
drain bolt to drain the oil from the
transmission.
4. Install the transmission oil drain
bolt, and then tighten it to the
specified torque.
Tightening torque:
Transmission oil drain bolt:
15 Nm (1,5 m•kgf)
5. Add the specified amount of the
recommended transmission oil,
and then install and tighten the oil
filler cap.
Recommended transmission oil:
See page 8-1.
Oil change quantity:
0,8 L (0,85 US qt)
ECA10450
CAUTION
● In order to prevent clutch slip-
page (since the transmission
oil also lubricates the clutch),
do not mix any chemical additives with the oil.
● Make sure that no foreign
material enters the transmission.
6. Start the engine, and then let it
idle for several minutes while
checking the transmission for oil
leakage. If oil is leaking, immediately turn off the engine and
check for the cause.
EAU20070
Coolant
The coolant level should be checked
before each ride. In addition, the coolant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
6-8
EAU20170
To check the coolant level
1. Place the vehicle on a level surface and hold it in an upright position.
NOTE:
● The coolant level must be chec-
ked on a cold engine since the
level varies with engine temperature.
● Make sure that the vehicle is
positioned straight up when
checking the coolant level. A
slight tilt to the side can result in
a false reading.
2. Remove panel D. (See page 6-6.)
3. Check the coolant level in the
coolant reservoir.
6
Page 40
PERIODIC MAINTENANCE AND MINOR REPAIR
NOTE:
The coolant should be between the
minimum and maximum level marks.
4. If the coolant is at or below the
minimum level mark, open the
reservoir cap, add coolant to the
maximum level mark, and then
close the reservoir cap.
Coolant reservoir capacity:
0,3 L (0,32 US qt)
CAUTION
● If coolant is not available, use
6
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
● If water has been used instead
of coolant, replace it with coolant as soon as possible, otherwise the engine may not be
sufficiently cooled and the cooling system will not be protected against frost and corrosion.
ECA10470
● If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible, otherwise the effectiveness of the coolant will be
reduced.
EWA10380
ss
WARNING
Never attempt to remove the radiator cap when the engine is hot.
5. Install the panel.
NOTE:
If the engine overheats, see page
6-31 for further instructions.
EAU20370
To change the coolant
2
1
1. Radiator cap bolt
2. Radiador cap
6-9
1. Put the vehicle on a level place.
2. Remove cowling C and panel D.
(See page 6-5 ~ 6-6.)
3. Remove the radiator cap stopper
bolt and the radiator cap.
1
1. Drain bolt
4. Place a container under the engine and remove the coolant drain
bolt.
5. Disconnect the coolant reservoir
hose on the reservoir side and
drain the coolant from the reservoir.
6. After draining the coolant, thoroughly flush the cooling system
with clean tap water.
7. Replace the coolant drain bolt
washer if it is damaged, and then
tighten the coolant drain bolt to
the specified torque.
Page 41
PERIODIC MAINTENANCE AND MINOR REPAIR
Tightening torque:
Coolant drain bolt:
10 Nm (1,0 m•kgf)
8. Connect the coolant reservoir
hose.
9. Pour the recommended coolant
into the radiator until it is full.
Recommended antifreeze:
High quality ethylene glycol antifreeze containing corrosion inhibitors for
aluminum engines
Antifreeze/water mixing ratio:
1:1
Coolant quantity:
Radiator capacity (including all routes):
0,92 L (0,97 US qt)
Coolant reservoir capacity:
0,3 L (0,32 US qt)
ECA10470
CAUTION
● If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
● If water has been used instead
of coolant, replace it with coolant as soon as possible, otherwise the engine may not be
sufficiently cooled and the cooling system will not be protected against frost and corrosion.
● If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible, otherwise the effectiveness of the coolant will be
reduced.
10. Install the radiator cap.
11. Run the engine several minutes.
Stop the engine and recheck the
coolant level in the radiator. If it is
low, add more coolant until it reaches the top of the radiator.
12. Install the radiator cap stopper
bolt.
13. Fill the coolant reservoir with
coolant up to maximum level.
14. Install the coolant reservoir cap
and check for coolant leakage.
NOTE:
If any leakage is found, ask a Yamaha
dealer to inspect the cooling system.
15. Install the cowling and the panel.
EAU20831
Cleaning the air filter
element and check hose
The air filter element should be cleaned at the intervals specified in the
periodic maintenance and lubrication
chart. Clean the air filter element more
frequently if you are riding in unusually wet or dusty areas. In addition,
the air filter check hose must be frequently checked and cleaned if
necessary.
1
1. Screws (x3)
6
6-10
Page 42
PERIODIC MAINTENANCE AND MINOR REPAIR
To clean the air filter element
1. Remove panel E. (See page 6-6.)
2. Remove the air filter case cover
by removing the screws.
3. Pull the air filter element out.
6
1. Guide
2. Filter
12
4. Remove the sponge material
from the air filter element frame,
clean it with solvent, and then
squeeze the remaining solvent
out.
5. Apply oil of the recommended
type to the entire surface of the
sponge material, and then squeeze the excess oil out.
NOTE:
The sponge material should be wet
but not dripping.
Recommended oil:
Foam air filter oil
6. Pull the sponge material over the
air filter element frame.
7. Insert the element into the air filter case.
ECA10480
CAUTION
● Make sure that the air filter ele-
ment is properly seated in the
air filter case.
● The engine should never be
operated without the air filter
element installed, otherwise
the piston(s) and/or cylinder(s)
may become excessively worn.
8. Install the air filter case cover by
installing the screws.
9. Install the panel.
6-11
To clean the air filter check hose
1. Check the hose at the bottom of
the air filter case for accumulated
dirt or water.
2. If dirt or water is visible, remove
the hose, clean it, and then install
it.
EAU21280
Adjusting the carburetor
The carburetor is an important part of
the engine and requires very sophisticated adjustment. Therefore, most
carburetor adjustments should be left
to a Yamaha dealer, who has the
necessary professional knowledge
and experience. The adjustment described in the following section, however, may be serviced by the owner as
part of routine maintenance.
CAUTION
The carburetor has been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowledge may result in poor performance of or damage to the engine.
ECA10550
Page 43
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU21340
Adjusting the engine idling
speed
1. Idle adjusting bolt
The engine idling speed must be
checked and, if necessary, adjusted
as follows at the intervals specified in
the periodic maintenance and lubrication chart.
The engine should be warm before
making this adjustment.
NOTE:
● The engine is warm when it
quickly responds to the throttle.
● A diagnostic tachometer is nee-
ded to make this adjustment.
1. Attach the tachometer to the
spark plug lead.
2. Check the engine idling speed
and, if necessary, adjust it to specification by turning the throttle
stop screw. To increase the engine idling speed, turn the screw in
direction (a). To decrease the
engine idling speed, turn the
screw in direction (b).
Engine idling speed:
1250-1450 r/min
NOTE:
If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
EAU21370
Adjusting the throttle cable
free play
(a) Free play
6-12
The throttle cable free play should
measure 3-5 mm (0,11-0,19 in) at the
throttle grip. Periodically check the
throttle cable free play and, if necessary, adjust it as follows.
NOTE:
The engine idling speed must be
correctly adjusted before checking
and adjusting the throttle cable free
play.
1
2
1. Lock nut
2. Adjusting nut
1. Loosen the locknut.
2. To increase the throttle cable free
play, turn the adjusting nut in
direction (a). To decrease the
throttle cable free play, turn the
adjusting nut in direction (b).
3. Tighten the locknut.
6
Page 44
PERIODIC MAINTENANCE AND MINOR REPAIR
Tires
To maximize the performance, durability, and safe operation of your
motorcycle, note the following points
regarding the specified tires.
Tire air pressure
The tire air pressure should be checked and, if necessary, adjusted before each ride.
ss
WARNING
● The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperatu-
6
re of the tires equals the
ambient temperature).
● The tire air pressure must be
adjusted in accordance with
the riding speed and with the
total weight of rider, passenger,
cargo, and accessories approved for this model.
EAU21590
EWA10500
Tire air pressure (measured on cold
tires):
DT125R
Up to 90 kg (198 lb):
Front:
150 kPa (21,8 psi) (1,5 kgf/cm
Rear:
175 kPa (25,4 psi) (1,75 kgf/cm
90 kg (198 lb) to maximum load:
Front:
175 kPa (25,4 psi) (1,75 kgf/cm
Rear:
200 kPa (28,9 psi) (2 kgf/cm
Maximum load*:
178 kg (392 lb)
DT125X
Up to 90 kg (198 lb):
Front:
180 kPa (26,1 psi) (1,8 kgf/cm
Rear:
200 kPa (28,9 psi) (2 kgf/cm
90 kg (198 lb) to maximum load:
Front:
180 kPa (26,1 psi) (1,8 kgf/cm
Rear:
200 kPa (28,9 psi) (2 kgf/cm
Maximum load*:
180 kg (396 lb)
* Total weight of rider, passenger, car-
go and accessories
2
2
)
2
2
)
2
2
)
ss
WARNING
Because loading has an enormous
impact on the handling, braking,
performance and safety characteristics of your vehicle, you should
)
keep the following precautions in
2
)
mind.
● NEVER OVERLOAD THE VEHI-
2
)
CLE! Operation of an overloaded motorcycle may result in
tire damage, loss of control, or
severe injury. Make sure that
the total weight of rider, passenger, cargo, and accessories
does not exceed the specified
)
maximum load for the vehicle.
● Do not carry along loosely pac-
ked items, which can shift
during a ride.
● Securely pack the heaviest
)
items close to the center of the
vehicle and distribute the
weight evenly on both sides.
● Adjust the tire air pressure with
regard to the load.
● Check the tire condition and air
pressure before each ride.
EWA11200
6-13
Page 45
PERIODIC MAINTENANCE AND MINOR REPAIR
Tire inspection
1
2
1.Wear limit
2. Side wall
The tires must be checked before
each ride. If the center tread depth
reaches the specified limit, if the tire
has a nail or glass fragments in it, or if
the sidewall is cracked, have a Yamaha dealer replace the tire immediately.
Minimum tire tread depth (front and
rear):
1.6 mm (0.06 in)
NOTE:
The tire tread depth limits may differ
from country to country. Always
comply with the local regulations.
Tire information
This motorcycle is equipped with tube
tires.
ss
WARNING
● The front and rear tires should
EWA10460
be of the same make and
design, otherwise the handling
characteristics of the vehicle
cannot be guaranteed.
● After extensive tests, only the
tires listed below have been
approved for this model by
Yamaha Motor España, S.A.
DT125R
Front tire:
Size:
80/90-21 48P
Manufacturer/model:
MICHELIN / T63
Rear tire:
Size:
110/80-18 58P
Manufacturer/model:
MICHELIN / T63
DT125X
Front tire:
Size:
120/70-17 58H
Manufacturer/model:
Pirelli/Sport Demon
Rear tire:
Size:
140/70-17 66H
Manufacturer/model:
Pirelli/Sport Demon
6
6-14
Page 46
PERIODIC MAINTENANCE AND MINOR REPAIR
ss
WARNING
● Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the
motorcycle with excessively
worn tires decreases riding
stability and can lead to loss of
control.
● The replacement of all wheel-
and brake-related parts, including the tires, should be left to
a Yamaha dealer, who has the
necessary professional know-
6
ledge and experience.
● It is not recommended to patch
a punctured tube. If unavoidable, however, patch the tube
very carefully and replace it as
soon as possible with a highquality product.
Spoke wheels
To maximize the performance, durability, and safe operation of your
motorcycle, note the following points
regarding the specified wheels.
EWA10570
EAU21940
● The wheel rims should be chec-
ked for cracks, bends or warpage, and the spokes for looseness
or damage before each ride. If
any damage is found, have a
Yamaha dealer replace the wheel. Do not attempt even the smallest repair to the wheel. A deformed or cracked wheel must be
replaced.
● The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced.
An unbalanced wheel can result
in poor performance, adverse
handling characteristics, and a
shortened tire life.
● Ride at moderate speeds after
changing a tire since the tire surface must first be “broken in” for
it to develop its optimal characteristics.
EAU22041
Adjusting the clutch lever
free play
3
1
2
1. Lock nut
2. Adjusting bolt
3. Free play
The clutch lever free play should measure 10-15 mm (0,34-0,59 in) as
shown. Periodically check the clutch
lever free play and, if necessary,
adjust it as follows.
1. Loosen the locknut at the clutch
lever.
2. To increase the clutch lever free
play, turn the adjusting bolt in
direction (a). To decrease the
clutch lever free play, turn the
adjusting bolt in direction (b).
6-15
Page 47
PERIODIC MAINTENANCE AND MINOR REPAIR
NOTE:
If the specified clutch lever free play
could be obtained as described above, tighten the locknut and skip the
rest of the procedure, otherwise proceed as follows.
3. Fully turn the adjusting bolt at the
clutch lever in direction (a) to loosen the clutch cable.
2
1
1. Lock nut
2. Adjusting nut
4. Loosen the locknut at the crankcase.
5. To increase the clutch lever free
play, turn the adjusting nut in
direction (a). To decrease the
clutch lever free play, turn the
adjusting nut in direction (b).
6. Tighten the locknut at the clutch
lever and the crankcase.
EAU22092
Adjusting the brake lever
free play
3
2
1
1. Lock nut
2. Adjusting bolt
3. Free play
The brake lever free play should measure 2-5 mm (0,07 ~ 0,19 in) as
shown. Periodically check the brake
lever free play and, if necessary,
adjust it as follows.
1. Loosen the locknut at the brake
lever.
2. To increase the brake lever free
play, turn the adjusting screw in
direction (a). To decrease the brake lever free play, turn the adjusting screw in direction (b).
3. Tighten the locknut.
ss
WARNING
● After adjusting the brake lever
EWA10630
free play, check the free play
and make sure that the brake is
working properly.
● A soft or spongy feeling in the
brake lever can indicate the
presence of air in the hydraulic
system. If there is air in the
hydraulic system, have a
Yamaha dealer bleed the system before operating the
motorcycle. Air in the hydraulic
system will diminish the braking performance, which may
result in loss of control and an
accident.
6
6-16
Page 48
PERIODIC MAINTENANCE AND MINOR REPAIR
Adjusting the brake pedal
position and free play
1
1. Footrest
(a) Brake pedal position
ss
WARNING
6
It is advisable to have a Yamaha
dealer make these adjustments.
Brake pedal position
The top of the brake pedal should be
positioned approximately 12-15 mm
(0,47-0,49 in) below the top of the
footrest. Periodically check the brake
pedal position and, if necessary,
adjust it as follows.
1. Loosen the locknut at the brake
pedal.
EAU22192
EWA10670
2. To raise the brake pedal, turn the
adjusting bolt in direction (a). To
lower the brake pedal, turn the
adjusting bolt in direction (b).
3. Tighten the locknut.
ss
WARNING
EWA11230
After adjusting the brake pedal
position, the brake pedal free play
must be adjusted.
Brake pedal free play
The brake pedal free play should
measure 10-15 mm (0,34-0,59 in) as
shown. Periodically check the brake
pedal free play and, if necessary,
adjust it as follows.
To increase the brake pedal free play,
turn the adjusting nut at the brake rod
in direction (a). To decrease the brake
pedal free play, turn the adjusting nut
in direction (b).
ss
WARNING
● After adjusting the drive chain
EWA10680
slack or removing and installing
the rear wheel, always check
the brake pedal free play.
● If proper adjustment cannot be
obtained as described, have a
Yamaha dealer make this
adjustment.
● After adjusting the brake pedal
free play, check the operation
of the brake light.
EAU22270
Adjusting the rear brake light
switch
1
2
1. Brake light swicht
2. Adjusting nut
The rear brake light switch, which is
activated by the brake pedal, is properly adjusted when the brake light
comes on just before braking takes
effect. If necessary, adjust the brake
light switch as follows.
6-17
Page 49
PERIODIC MAINTENANCE AND MINOR REPAIR
Turn the adjusting nut while holding
the rear brake light switch in place. To
make the brake light come on earlier,
turn the adjusting nut in direction (a).
To make the brake light come on later,
turn the adjusting nut in direction (b).
EAU22340
Checking the front and rear
brake pads
FRONT
1
1. Wear limit indicator
The front and rear brake pads must
be checked for wear at the intervals
specified in the periodic maintenance
and lubrication chart. To check the
brake pad wear, measure the lining
thickness. If the lining thickness is
less than 0,8 mm (0,03 in), have a
Yamaha dealer replace the brake
pads as a set.
EWA10250
ss
WARNING
If a malfunction is noted, have a
Yamaha dealer check the system
before riding.
REAR
1
1. Wear indicator
EAU22580
Checking the brake fluid level
FRONT
1
1. Minimum level mark
Insufficient brake fluid may allow air
to enter the brake system, possibly
causing it to become ineffective.
6-18
Before riding, check that the brake
fluid is above the minimum level mark
and replenish if necessary. A low brake fluid level may indicate worn brake
pads and/or brake system leakage. If
the brake fluid level is low, be sure to
check the brake pads for wear and
the brake system for leakage.
Observe these precautions:
● When checking the fluid level,
make sure that the top of the
brake fluid reservoir is level.
REAR
6
1
1. Minimum level mark
● Use only the recommended qua-
lity brake fluid, otherwise the rubber seals may deteriorate, causing leakage and poor braking
performance.
Page 50
PERIODIC MAINTENANCE AND MINOR REPAIR
Recommended brake fluid:
DOT 4
● Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.
● Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will significantly lower the boiling point of
the fluid and may result in vapor
lock.
● Brake fluid may deteriorate pain-
6
ted surfaces or plastic parts.
Always clean up spilled fluid
immediately.
● As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if
the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause.
EAU22730
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the NOTE after the periodic maintenance and lubrication chart. In addition, have the oil seals of the master
cylinders and calipers as well as the
brake hoses replaced at the intervals
listed below or whenever they are
damaged or leaking.
● Oil seals: Replace every two
years.
● Brake hoses: Replace every four
years.
EAU22770
To check the drive chain slack
1. Place the motorcycle on a level
surface and hold it in an upright
position.
NOTE:
When checking and adjusting the drive chain slack, the motorcycle should
be positioned straight up and there
should be no weight on it.
2. Shift the transmission into the
neutral position.
3. Move the rear wheel by pushing
the motorcycle to locate the tightest portion of the drive chain,
and then measure the drive chain
slack as shown.
Drive chain slack:
45-55 mm (1,76-2,15 in)
4. If the drive chain slack is incorrect, adjust it as follows.
(a) Chain tension
6-19
Page 51
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU22960
To adjust the drive chain slack
2
1
1. Axle nut
2. Chain tensioner
1. Loosen the axle nut.
2. To tighten the drive chain, turn
the adjusting plate on each side
of the swingarm in direction (a).
To loosen the drive chain, turn
the adjusting plate on each side
of the swingarm in direction (b),
and then push the rear wheel forward.
NOTE:
Make sure that both adjusting plates
are in the same position for proper
wheel alignment.
ECA10570
CAUTION
Improper drive chain slack will
overload the engine as well as
other vital parts of the motorcycle
and can lead to chain slippage or
breakage. To prevent this from
occurring, keep the drive chain
slack within the specified limits.
3. Tighten the axle nut to the specified torque.
Tightening torque:
Axle nut:
90 Nm (9,0 m•kgf)
EAU23021
Lubricating the drive chain
The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrication chart, otherwise it will quickly
wear out, especially when riding in
dusty or wet areas. Service the drive
chain as follows.
ECA10581
CAUTION
The drive chain must be lubricated
after washing the motorcycle and
riding in the rain.
1. Clean the drive chain with kerosene and a small soft brush.
ECA11120
CAUTION
To prevent damaging the O-rings,
do not clean the drive chain with
steam cleaners, high-pressure
washers or inappropriate solvents.
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant.
ECA11110
CAUTION
Do not use engine oil or any other
lubricants for the drive chain, as
they may contain substances that
could damage the O-rings.
6
6-20
Page 52
PERIODIC MAINTENANCE AND MINOR REPAIR
Checking and lubricating the
cables
The operation of all control cables
and the condition of the cables
should be checked before each ride,
and the cables and cable ends should
be lubricated if necessary. If a cable is
damaged or does not move smoothly,
have a Yamaha dealer check or replace it.
Recommended lubricant:
Engine oil
6
ss
WARNING
Damage to the outer sheath may
interfere with proper cable operation and will cause the inner cable
to rust. Replace a damaged cable
as soon as possible to prevent
unsafe conditions.
EAU23100
EWA10720
EAU23110
Checking and lubricating the
throttle grip and cable
The operation of the throttle grip
should be checked before each ride.
In addition, the cable should be lubricated or replaced at the intervals specified in the periodic maintenance
chart.
EAU23120
Adjusting the Autolube pump
The Autolube pump is a vital and sophisticated component of the engine,
which must be adjusted by a Yamaha
dealer at the intervals specified in the
periodic maintenance and lubrication
chart.
EAU23131
Checking and lubricating the
brake and shift pedals
The operation of the brake and shift
pedals should be checked before
each ride, and the pedal pivots
should be lubricated if necessary.
EAU23140
Checking and lubricating the
brake and clutch levers
The operation of the brake and clutch
levers should be checked before each
ride, and the lever pivots should be
lubricated if necessary.
Recommended lubricant:
Lithium-soap-based grease (all-purpose grease)
EAU23200
Checking and lubricating the
sidestand
The operation of the sidestand should
be checked before each ride, and the
sidestand pivot and metal-to-metal
contact surfaces should be lubricated
if necessary.
ss
WARNING
If the sidestand does not move up
and down smoothly, have a Yamaha dealer check or repair it.
EWA10730
Recommended lubricant:
Lithium-soap-based grease (all-purpose grease)
6-21
Page 53
PERIODIC MAINTENANCE AND MINOR REPAIR
Recommended lubricant:
Lithium-soap-based grease (all-purpose grease)
EAU23271
Checking the front fork
The condition and operation of the
front fork must be checked as follows
at the intervals specified in the periodic maintenance and lubrication
chart.
To check the condition
ss
WARNING
Securely support the motorcycle so
that there is no danger of it falling
over.
Check the inner tubes for scratches,
damage and excessive oil leakage.
EWA10750
To check the operation
1. Place the motorcycle on a level
surface and hold it in an upright
position.
2. While applying the front brake,
push down hard on the handlebars several times to check if the
front fork compresses and
rebounds smoothly.
ECA10590
CAUTION
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or
repair it.
EAU23280
Checking the steering
Worn or loose steering bearings may
cause danger. Therefore, the operation of the steering must be checked
as follows at the intervals specified in
the periodic maintenance and lubrication chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
ss
WARNING
Securely support the motorcycle so
that there is no danger of it falling
over.
EWA10750
6
6-22
Page 54
PERIODIC MAINTENANCE AND MINOR REPAIR
2. Hold the lower ends of the front
fork legs and try to move them
forward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
Checking the wheel bearings
The front and rear wheel bearings
must be checked at the intervals specified in the periodic maintenance and
lubrication chart. If there is play in the
wheel hub or if the wheel does not
turn smoothly, have a Yamaha dealer
6
check the wheel bearings.
Battery
1
1. Battery
2. Battery ventilation pipe
The battery is located behind panel D.
(See page 6-6.)
This model is equipped with a sealedtype (MF) battery, which does not
require any maintenance. There is no
need to check the electrolyte or to
EAU23290
add distilled water.
ECA10620
CAUTION
Never attempt to remove the battery cell seals, as this would permanently damage the battery.
EWA10760
ss
WARNING
● Electrolyte is poisonous and
dangerous since it contains
EAU23380
sulfuric acid, which causes
severe burns. Avoid any contact with skin, eyes or clothing
and always shield your eyes
when working near batteries.
In case of contact, administer
2
the following FIRST AID.
• EXTERNAL: Flush with plenty
of water.
• INTERNAL: Drink large quan-
• EYES: Flush with water for 15
minutes and seek prompt
medical attention.
• Batteries produce explosive
hydrogen gas. Therefore,
keep sparks, flames, cigarettes, etc., away from the battery and provide sufficient
ventilation when charging it
in an enclosed space.
● KEEP THIS AND ALL BATTE-
RIES OUT OF THE REACH OF
CHILDREN.
To charge the battery
Have a Yamaha dealer charge the
battery as soon as possible if it seems
to have discharged. Keep in mind that
the battery tends to discharge more
quickly if the vehicle is equipped with
optional electrical accessories.
To store the battery
1. If the vehicle will not be used for
more than one month, remove
the battery, fully charge it, and
then place it in a cool, dry place.
tities of water or milk and
immediately call a physician.
6-23
Page 55
PERIODIC MAINTENANCE AND MINOR REPAIR
2. If the battery will be stored for
more than two months, check it
at least once a month and fully
charge it if necessary.
3. Fully charge the battery before
installation.
4. After installation, make sure that
the battery leads are properly
connected to the battery terminals.
ECA10630
CAUTION
● Always keep the battery char-
ged. Storing a discharged battery can cause permanent battery damage.
● To charge a sealed-type (MF)
battery, a special (constantvoltage) battery charger is
required. Using a conventional
battery charger will damage
the battery. If you do not have
access to a sealed-type (MF)
battery charger, have a Yamaha
dealer charge your battery.
EAUS1180
Replacing the fuse
2
1
1. Fuse
2. Reserve fuse
The fuse holder is located beside the
battery case.
If the fuse is blown, replace it as
follows.
1. Turn the key to “OFF” and turn off
all electrical circuits.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.
Specified fuse:
15 A
ECA10640
CAUTION
Do not use a fuse of a higher amperage rating than recommended to
avoid causing extensive damage to
the electrical system and possibly a
fire.
3. Turn the key to “ON” and turn on
the electrical circuits to check if
the devices operate.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU23910
Replacing a headlight bulb
1
1. Couplers
6
6-24
Page 56
PERIODIC MAINTENANCE AND MINOR REPAIR
This model is equipped with quartz
bulb headlights. If a headlight bulb
burns out, replace it as follows.
1. Remove cowling A. (See page
6-5.)
2. Disconnect the headlight coupler,
and then remove the headlight
bulb cover.
6
3. Remove the headlight bulb holder according to the following
illustration, and then remove the
defective bulb.
NOTE:
The removal procedure depends on
the type of bulb holder installed on
your vehicle.
EWA10790
ss
WARNING
Headlight bulbs get very hot. Therefore, keep flammable products
away from a lit headlight bulb, and
do not touch the bulb until it has
cooled down.
4. Place a new bulb into position,
and then secure it with the bulb
holder.
ECA10660
CAUTION
Do not touch the glass part of the
headlight bulb to keep it free from
oil, otherwise the transparency of
the glass, the luminosity of the
bulb, and the bulb life will be adversely affected. Thoroughly clean off
any dirt and fingerprints on the
headlight bulb using a cloth moistened with alcohol or thinner.
5. Install the bulb cover, and then
connect the coupler.
6. Install the cowling.
7. Have a Yamaha dealer adjust the
headlight beam if necessary.
EAU24131
Replacing the tail/brake light
bulb
2
1
1. Screw (x2)
2. Lens
1. Remove the tail/brake light lens
by removing the screws.
2. Remove the defective bulb by
pushing it in and turning it counterclockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clockwise until it stops.
4. Install the lens by installing the
screws.
6-25
Page 57
PERIODIC MAINTENANCE AND MINOR REPAIR
ECA10680
CAUTION
Do not overtighten the screws,
otherwise the lens may break.
EAU24201
Replacing a turn signal light
bulb
1
3
2
1. Screw
2. Lens
3. Bulb
1. Remove the turn signal light lens
by removing the screw.
2. Remove the defective bulb by
pushing it in and turning it counterclockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clockwise until it stops.
4. Install the lens by installing the
screw.
ECA11190
CAUTION
Do not overtighten the screw,
otherwise the lens may break.
EAU24350
Supporting the motorcycle
Since this model is not equipped with
a centerstand, follow these precautions when removing the front and
rear wheel or performing other maintenance requiring the motorcycle to
stand upright. Check that the
motorcycle is in a stable and level
position before starting any maintenance. A strong wooden box can be
placed under the engine for added
stability.
To service the front wheel
1. Stabilize the rear of the motorcycle by using a motorcycle stand
or, if an additional motorcycle
stand is not available, by placing
a jack under the frame in front of
the rear wheel.
6-26
2. Raise the front wheel off the
ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a
motorcycle stand is not available, by
placing a jack either under each side
of the frame in front of the rear wheel
or under each side of the swingarm.
EAU24360
Front wheel
EAU24640
To remove the front wheel
1
2
3
1. Speedometer cable
2. Axle retainer nut (x4)
3. Wheel axle
6
Page 58
PERIODIC MAINTENANCE AND MINOR REPAIR
ss
WARNING
● It is advisable to have a Yama-
ha dealer service the wheel.
● Securely support the motorcy-
cle so that there is no danger of
it falling over.
1. Disconnect the speedometer
cable from the front wheel.
2. Loosen the wheel axle holder
nuts, then the wheel axle.
3. Lift the front wheel off the ground
according to the procedure on
page 6-26.
4. Pull the wheel axle out, and then
6
remove the wheel.
CAUTION
Do not apply the brake after the
wheel has been removed together
with the brake disc, otherwise the
brake pads will be forced shut.
EWA10820
ECA11070
EAU24950
To install the front wheel
1. Install the speedometer gear unit
into the wheel hub so that the
projections mesh with the slots.
2. Lift the wheel up between the
fork legs.
NOTE:
Make sure that there is enough space
between the brake pads before inserting the brake disc and that the slot in
the speedometer gear unit fits over
the retainer on the fork leg.
3. Insert the wheel axle.
4. Lower the front wheel so that it is
on the ground.
5. Tighten the wheel axle to the
specified torque.
Tightening torque:
Wheel axle:
55 Nm (5,5 m•kgf)
6. Tighten the axle holder nuts to
the specified tightening torque. Tighten the upper nuts first and then lower
ones. When tightened in this sequence, there should be a gap formed at
the bottom of the axle holder.
6-27
Tightening torque:
Axle holder nut:
10 Nm (1,0 m•kgf)
Page 59
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU25080
Rear wheel
EAU25230
To remove the rear wheel
2
1
1. Gap
7. After tightening the axle holder
nuts, push down hard on the
handlebars several times while
applying the front brake to check
if the front fork compresses and
rebounds smoothly.
8. Connect the speedometer cable.
1. Axle retainer bolt
EWA10820
ss
WARNING
● It is advisable to have a Yama-
ha dealer service the wheel.
● Securely support the motorcy-
cle so that there is no danger of
it falling over.
1. Loosen the axle nut.
2. Lift the rear wheel off the ground
according to the procedure on
page 6-26.
6-28
1
1. Axle nut
2. Chain tensioner
1
3. Remove the swingarm end bolts.
4. Turn the drive chain adjusting
plate on each side of the swin-
6
garm fully in direction (a).
5. Push the wheel forward, and then
remove the drive chain from the
rear sprocket.
NOTE:
The drive chain does not need to be
disassembled in order to remove and
install the rear wheel.
6. Pull the wheel axle out from the
left-hand side, and then remove
the wheel by pulling it back.
Page 60
PERIODIC MAINTENANCE AND MINOR REPAIR
CAUTION
Do not apply the brake after the
wheel has been removed together
with the brake disc, otherwise the
brake pads will be forced shut.
To install the rear wheel
1. Install the drive chain onto the
rear sprocket, and then insert the
wheel axle from the left-hand
side.
NOTE:
6
Make sure that there is enough space
between the brake pads before inserting the brake disc between the brake
pads.
2. Install the drive chain adjusting
plates.
NOTE:
Make sure that the drive chain adjusting plates are installed with the punched side facing to the outside.
ECA11070
EAU25530
4. Adjust the drive chain slack. (See
page 6-19.)
5. Tighten the axle nut and the
swingarm end bolts to the specified torques, and then install the
cotter pin.
ss
WARNING
EWA10700
Always use a new cotter pin for the
axle nut.
Tightening torque:
Axle nut:
90 Nm (9,0 m•kgf)
Swingarm end bolt:
3 Nm (0,3 m•kgf)
EAU25850
Troubleshooting
Although Yamaha motorcycles receive a thorough inspection before shipment from the factory, trouble may
occur during operation. Any problem
in the fuel, compression, or ignition
systems, for example, can cause poor
starting and loss of power.
The following troubleshooting chart
represents a quick and easy procedure for checking these vital systems
yourself. However, should your
motorcycle require any repair, take it
to a Yamaha dealer, whose skilled
technicians have the necessary tools,
experience, and know-how to service
the motorcycle properly.
Use only genuine Yamaha replacement parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
3. Install the swingarm end bolts.
6-29
Page 61
PERIODIC MAINTENANCE AND MINOR REPAIR
Check the fuel level in
the fuel tank.
1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.
2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.
3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.
4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.
Check the battery lead connections,
and charge the battery if necessary.
Dry
Wet
Open the throttle halfway and operate
the electric starter.
Troubleshooting charts
Starting problems or poor engine performance
ss
WARNING
Keep away open flames and do not smoke while checking or working on the fuel system.
EAU25921
EWA10840
6-30
6
Page 62
PERIODIC MAINTENANCE AND MINOR REPAIR
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.
The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer check
and repair the cooling system.
Add coolant. (See NOTE.)
Start the engine. If the engine overheats again, have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
Engine overheating
ss
WARNING
● Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
● After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
6
NOTE:
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended
coolant as soon as possible.
6-31
EWA10400
Page 63
MOTORCYCLE CARE AND STORAGE
EAU26000
Care
While the open design of a motorcycle reveals the attractiveness of the
technology, it also makes it more vulnerable. Rust and corrosion can
develop even if high-quality components are used. A rusty exhaust pipe
may go unnoticed on a car, however,
it detracts from the overall appearance of a motorcycle. Frequent and proper care does not only comply with
the terms of the warranty, but it will
also keep your motorcycle looking
good, extend its life and optimize its
performance.
Before cleaning
1. Cover the muffler outlet with a
plastic bag after the engine has
cooled down.
2. Make sure that all caps and
covers as well as all electrical
couplers and connectors, including the spark plug cap, are
tightly installed.
3. Remove extremely stubborn dirt,
like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such products onto seals, gaskets, sprockets, the drive chain and wheel
axles. Always rinse the dirt and
degreaser off with water.
Cleaning
ECA10770
CAUTION
● Avoid using strong acidic whe-
el cleaners, especially on spoked wheels. If such products
are used on hard-to-remove
dirt, do not leave the cleaner on
the affected area any longer
than instructed. Also, thoroughly rinse the area off with
water, immediately dry it, and
then apply a corrosion protection spray.
● Improper cleaning can damage
windshields, cowlings, panels
and other plastic parts. Use
only a soft, clean cloth or sponge with mild detergent and
water to clean plastic.
7-1
● Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust
removers or inhibitors, brake
fluid, antifreeze or electrolyte.
● Do not use high-pressure was-
hers or steam-jet cleaners since they cause water seepage
and deterioration in the following areas: seals (of wheel and
swingarm bearings, fork and
brakes), electric components
(couplers, connectors, instruments, switches and lights),
breather hoses and vents.
● For motorcycles equipped with
a windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or scratching. Some cleaning compounds for plastic may leave
scratches on the windshield.
Test the product on a small hidden part of the windshield to
make sure that it does not lea-
7
Page 64
MOTORCYCLE CARE AND STORAGE
ve any marks. If the windshield
is scratched, use a quality
plastic polishing compound
after washing.
After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush for hard-to-reach areas. Stubborn dirt and insects will come off
more easily if the area is covered with
a wet cloth for a few minutes before
cleaning.
After riding in the rain, near the sea or
on salt-sprayed roads
Since sea salt or salt sprayed on
7
roads during winter are extremely
corrosive in combination with water,
carry out the following steps after
each ride in the rain, near the sea or
on salt-sprayed roads.
NOTE:
Salt sprayed on roads in the winter
may remain well into spring.
1. Clean the motorcycle with cold
water and a mild detergent, after
the engine has cooled down.
ECA10790
CAUTION
Do not use warm water since it
increases the corrosive action of
the salt.
2. Apply a corrosion protection
spray on all metal, including
chrome- and nickel-plated, surfaces to prevent corrosion.
After cleaning
1. Dry the motorcycle with a chamois or an absorbing cloth.
2. Immediately dry the drive chain
and lubricate it to prevent it from
rusting.
3. Use a chrome polish to shine
chrome, aluminum and stainlesssteel parts, including the exhaust
system. (Even the thermally induced discoloring of stainless-steel
exhaust systems can be removed
through polishing.)
4. To prevent corrosion, it is recommended to apply a corrosion protection spray on all metal, including chrome- and nickel-plated,
surfaces.
5. Use spray oil as a universal cleaner to remove any remaining dirt.
6. Touch up minor paint damage
caused by stones, etc.
7. Wax all painted surfaces.
8. Let the motorcycle dry completely before storing or covering it.
ss
WARNING
● Make sure that there is no oil or
EWA10930
wax on the brakes or tires. If
necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or
acetone, and wash the tires
with warm water and a mild
detergent.
● Before operating the motorcy-
cle test its braking performance and cornering behavior.
7-2
Page 65
MOTORCYCLE CARE AND STORAGE
ECA10800
CAUTION
● Apply spray oil and wax spa-
ringly and make sure to wipe
off any excess.
● Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.
● Avoid using abrasive polishing
compounds as they will wear
away the paint.
NOTE:
Consult a Yamaha dealer for advice
on what products to use.
EAU26150
Storage
Short-term
Always store your motorcycle in a
cool, dry place and, if necessary, protect it against dust with a porous
cover.
ECA10810
CAUTION
● Storing the motorcycle in a
poorly ventilated room or covering it with a tarp, while it is still
wet, will allow water and humidity to seep in and cause rust.
● To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemicals are stored.
Long-term
Before storing your motorcycle for
several months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. For motorcycles equipped with a
fuel cock that has an “OFF” position: Turn the fuel cock lever to
“OFF”.
3. Drain the carburetor float chamber by loosening the drain bolt;
this will prevent fuel deposits
from building up. Pour the drained fuel into the fuel tank.
4. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
5. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.
a. Remove the spark plug cap and
spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit sparking
during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap from
the spark plug, and then install
the spark plug and the spark plug
cap.
7
7-3
Page 66
MOTORCYCLE CARE AND STORAGE
ss
WARNING
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
6. Lubricate all control cables and
the pivoting points of all levers
and pedals as well as of the
sidestand/centerstand.
7. Check and, if necessary, correct
the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alternatively, turn the wheels a little
every month in order to prevent
7
the tires from becoming degraded in one spot.
8. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
EWA10950
9. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a
month. Do not store the battery in
an excessively cold or warm place [less than 0 °C (30 °F) or more
than 30 °C (90 °F)]. For more
information on storing the battery, see page 6-23.
NOTE:
Make any necessary repairs before
storing the motorcycle.
7-4
Page 67
SPECIFICATIONS
Dimensions
Overall length
DT125RE 2210 mm
DT125X 2139 mm
Overall width
795 mm
Overall height
DT125RE 1200 mm
DT125X 1121 mm
Seat height
DT125RE 900 mm
DT125X 886 mm
Wheelbase
DT125RE 1415 mm
DT125X 1396 mm
Ground clearance
DT125RE 300 mm
DT125X 271 mm
Minimum turning radius
DT125RE 2100 mm
DT125X 2016 mm
Weight
With oil and fuel
DT125RE 126.0 kg
DT125X 134.0 kg
Engine
Engine type
Liquid cooled 2-stroke
Cylinder arrangement
Forward-inclined single cylinder
Displacement
124.0 cm
Bore x stroke
56.0 x 50.7 mm
3
Compression ratio
6.70 :1
Starting system
Electric starter
Lubrication system
Separate lubrication (Yamaha autolube)
Type
YAMALUBE 2-cycle oil or 2-stroke engine
oil (JASO FC g
Engine oil quantity
Quantity
1.3 L
Transmission oil
Type
SAE10W30 type SE motor oil
Oil change quantity
0.75 L
Cooling system
Coolant reservoir capacity (up to the maximum leve
0.30 L
Radiator capacity (including all routes)
0.92 L
Air filter
Air filter element
Wet element
Fuel
Recommended fuel
Regular unleaded gasoline only
Fuel tank capacity
10.7 L
Fuel reserve amount
1.8 L
Carburetor
Manufacturer
MIKUNI
Type x quantity
TM28-92 x1
Spark plug(s)
Manufacturer/model
NGK/BR8ES
Spark plug gap
0.7-0.8 mm
Clutch type
Wet, multiple-disc
Transmission
Primary reduction system
Helical gear
Primary reduction ratio
71/22 (3.227)
Secondary reduction system
Chain drive
Secondary reduction ratio
57/16 (3.563)
Transmission type
Constant mesh 6-speed
Operation
Left foot operation
Gear ratio
1st
34/12 (2.833)
2nd
30/16 (1.875)
3rd
24/17 (1.412)
4th
24/21 (1.143)
8
8-1
Page 68
SPECIFICATIONS
8
5th
22/23 (0.957)
6th
18/22 (0.818)
Chassis
Frame type
Semi double cradle
Caster angle
DT125RE 27.00 degree
DT125X 24.50 degree
Trail
DT125RE 107.0 mm
DT125X 73.1 mm
Front tire
Type
With tube
Size
DT125RE 80/90-21 48P
DT125X 120/70-17 58H
Manufacturer/model
DT125RE MICHELIN/T63
DT125X PIRELLI/Sport Demon
Rear tire
Type
With tube
Size
DT125RE 110/80-18 58P
DT125X 140/70-17 66H
Manufacturer/model
DT125RE MICHELIN/T63
DT125X PIRELLI/Sport Demon
Maximum load
DT125RE 178 kg
DT125X 180 kg
Tire air pressure (measured on cold
tires)
Loading condition
0-90 kg
Front
DT125RE 150 kPa
DT125X 180 kPa
Rear
DT125RE 175 kPa
DT125X 200 kPa
Loading condition
90-178 kg
Front
DT125RE 175 kPa
DT125X 180 kPa
Rear
200 kPa
Off-road riding
Front
DT125RE 150 kPa
Rear
DT125RE 175 kPa
Front wheel
Wheel type
Spoke wheel
Rim size
DT125RE 21x1.60
DT125X 17x3.00
Rear wheel
Wheel type
Spoke wheel
Rim size
DT125RE 18x1.85
DT125X 17x3.50
8-2
Front brake
Type
Single disc brake
Operation
Right hand operation
Recommended fluid
DOT 4
Rear brake
Type
Single disc brake
Operation
Right foot operation
Recommended fluid
DOT 4
Front suspension
Type
Telescopic fork
Spring/shock absorber type
Coil spring/oil damper
Wheel travel
DT125RE 270.0 mm
DT125X 200.0 mm
Rear suspension
Type
Swingarm (link suspension)
Spring/shock absorber type
Coil spring/gas-oil damper
Wheel travel
DT125RE 260.0 mm
DT125X 230.0 mm
Electrical system
Ignition system
CDI
Page 69
Charging system
AC magneto
Battery
Model
GT6B-3
Voltage, capacity
12 V, 6.0 Ah
Headlight
Bulb type
Halogen bulb
Bulb voltage, wattage x quantity
Headlight
12 V, 600 W/55.0 W x 1
Tail/brake light
12 V, 21.0 W/5.0 W x 1
Front turn signal light
12 V, 10.0 W x 2
Rear turn signal light
12 V, 10.0 W x 2
Auxiliary light
12 V, 5.0 W x 1
Meter lighting
LED
Neutral indicator light
12 V, 3.0 W x 1
High beam indicator light
12 V, 3.0 W x 1
Oil level warning light
12 V, 3.0 W x 1
Turn signal indicator light
12 V, 3.0 W x 1
Fuses
Main fuse
15.0 A
SPECIFICATIONS
8
8-3
Page 70
CONSUMER INFORMATION
Identification numbers
Record the key identification number,
vehicle identification number and
model label information in the spaces
provided below for assistance when
ordering spare parts from a Yamaha
dealer or for reference in case the
vehicle is stolen.
KEY IDENTIFICATION NUMBER:
VEHICLE IDENTIFICATION NUMBER:
MODEL LABEL INFORMATION:
9
EAU26351
EAU26381
Key identification number
1
1. Key identification number
The key identification number is
stamped into the key tag.Record this
number in the space provided and
use it for reference when ordering a
new key.
EAU26400
Vehicle identification number
1
1. Frame number
The vehicle identification number is
stamped into the steering head
pipe.Record this number in the space
provided.
NOTE:
The vehicle identification number is
used to identify your motorcycle and
may be used to register your
motorcycle with the licensing authority in your area.
9-1
Page 71
CONSUMER INFORMATION
EAU26440
Engine serial number
1
1. Engine serial number
The engine serial number is stamped
into the crankcase.
EAU26480
Model label
1
1. Model label
The model label is affixed to the frame
under the seat. (See page 3-8.)
Record the information on this label in
the space provided. This information
will be needed when ordering spare
parts from a Yamaha dealer.
9
9-2
Page 72
INDEX
A
Adjusting the autolube pump ..................6-21
Adjusting the brake lever free play ..........6-16
Adjusting the brake pedal position and
free play .................................................6-17
Adjusting the clutch lever free play .........6-15
Adjusting the drive chain slack................6-20
Adjusting the engine idling speed ...........6-12
Adjusting the rear brake light switch .......6-17
Ajusting the carburetor ............................6-11
Ajusting the throttle cable free play.........6-12
B
Brake lever .................................................3-5
Brake pedal................................................3-5
C
Care............................................................7-1
Catalytic converter.....................................3-6
Changing the brake fluid..........................6-19
Checking and lubricating the brake and
shift pedals ............................................6-21
Checking and lubricating the breake and
clutch levers...........................................6-21
Checking and lubricating the cables .......6-21
Checking and lubricating the sidestand ..6-21
Checking and lubricating the throttle grip
and cable ...............................................6-21
Checking the drive chain slack................6-19
Checking the front and rear brake
pads.......................................................6-18
Checking the front fork ............................6-22
Checking the spark plug............................6-6
Checking the steering..............................6-22
Checking the wheel bearings ..................6-23
Cleaning the air filter element and check
hose .......................................................6-10
Clutch lever................................................3-4
Controls and instruments ..........................2-3
Coolant.......................................................6-8
D
2-stroke engine oil .....................................3-7
E
Engine break-in..........................................5-2
F
Front wheel ..............................................6-26
Fuel cock....................................................3-7
Fuel tank cap .............................................3-5
H
Handlebar switches ...................................3-3
I
Identification numbers ...............................9-1
Ignition circuit cut-off system ..................3-10
Indicator and warning lights ......................3-2
L
Left view.....................................................2-1
Lubricating the drive chain ......................6-20
M
Main switch/steering lock ..........................3-1
O
Owner’s tool kit..........................................6-1
P
Parking .......................................................5-3
Periodic maintenance and lubrication
chart.........................................................6-2
Pre-operation check list.............................4-2
R
Rear wheel ...............................................6-28
Removing and installing cowlings and
panels ......................................................6-5
Replacing the fuse ...................................6-24
Replacing the headlight bulb...................6-24
Replacing the tail/brake light bulb...........6-25
Replacing the turn signal light bulb .........6-26
Right view ..................................................2-2
S
Seat............................................................3-8
Shift pedal..................................................3-4
Shifting .......................................................5-2
Shock absorber..........................................3-9
Sidestand .................................................3-10
Specifications.............................................8-1
Speedometer unit ......................................3-3
Spoke wheels...........................................6-15
Starter (choke) lever...................................3-8
Starting a cold engine................................5-1
Starting a warm engine..............................5-2
Storage.......................................................7-3
Supporting the motorcycle ......................6-26
T
Tires .........................................................6-13
Transmission oil .........................................6-7
Troubleshooting .......................................6-29
Y
YEIS handling precautions.........................3-9
YPVS ..........................................................3-9
Page 73
Page 74
YAMAHA MOTOR ESPAÑA, S.A.
PRINTED IN SPAIN
2004-07-Bengar Gràfiques, S.L.
(E)
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