Yamaha YZF-R25 User manual

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Get your 2(Two) free service coupon
from your motorcycle dealers.
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dari pengedar/penjual motosikal anda.
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INTRODUCTION
Welcome to the Yamaha world of motorcycling!
As the owner of the YZF-R25, you are benefiting from Yamaha’s vast experience and newest technology regarding the de-
sign 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 YZF-R25. 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!
Yamahacontinuallyseeksadvancements inproductdesign andquality.Therefore, whilethismanualcontains themostcur-
rent product information available at the time of printing, there may be minor discrepancies between your motorcycle and
this manual. If there is any question concerning this manual, please consult a Yamaha dealer.
WARNING
Please read this manual carefully andcompletely before operating this motorcycle.

IMPORTANT MANUAL INFORMATION
Particularly important information is distinguished in this manual by the following notations:
*Product and specifications are subject to change without notice.
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury
or death.
A WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
A NOTICE indicates special precautions that must be taken to avoid damage to the
vehicle or other property.
A TIP provides key information to make procedures easier or clearer.
WARNING
NOTICE
TIP

IMPORTANT MANUAL INFORMATION
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd
is expressly prohibited.
Printed in Malaysia
YZF-R25
OWNER’S MANUAL
©2015 by Yamaha Motor Co., Ltd.
1st edition, March 2015

TABLE OF CONTENTS
LOCATION OF IMPORTANT
LABELS..............................................1-1
SAFETYINFORMATION................... 2-1
Helmets............................................ 2-5
DESCRIPTION................................... 3-1
Left view........................................... 3-1
Right view........................................ 3-2
Controls and instruments................ 3-3
INSTRUMENT AND CONTROL
FUNCTIONS...................................... 4-1
Main switch/steering lock................ 4-1
Indicator lights and warning
lights.............................................. 4-2
Multi-function meter unit.................. 4-4
Handlebar switches....................... 4-10
Clutch lever.................................... 4-11
Shift pedal...................................... 4-12
Brake lever..................................... 4-12
Brake pedal................................... 4-12
Fuel tank cap................................. 4-13
Fuel................................................ 4-13
Fuel tank breather hose and
overflow hose............................. 4-14
Catalytic converter......................... 4-15
Seats.............................................. 4-15
Helmet holders.............................. 4-17
Storage compartment................... 4-17
Rear view mirrors.......................... 4-18
Adjusting the shock absorber
assembly.................................... 4-18
Luggage strap holders.................. 4-19
Sidestand...................................... 4-19
Starting circuit cut-off system....... 4-19
FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 5-1
OPERATION AND IMPORTANT
RIDING POINTS................................ 6-1
Starting the engine.......................... 6-2
Shifting............................................. 6-2
Tips for reducing fuel
consumption................................. 6-3
Engine break-in............................... 6-3
Parking............................................. 6-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 7-1
Owner’s tool kit................................ 7-1
Periodic maintenance chart for the
emission control system.............. 7-3
General maintenance and
lubrication chart............................ 7-5
Checking the spark plugs............... 7-9
Engine oil and oil filter cartridge.... 7-10
Coolant.......................................... 7-13
Replacing the air filter element
and cleaning the check hose..... 7-14
Checking the throttle grip free
play.............................................. 7-16
Valve clearance............................. 7-16
Tires............................................... 7-16
Cast wheels................................... 7-18
Adjusting the clutch lever free
play............................................. 7-19
Checking the brake lever free
play............................................. 7-20
Brake light switches....................... 7-21
Checking the front and rear brake
pads............................................. 7-21
Checking the brake fluid level....... 7-22
Changing the brake fluid............... 7-23
Drive chain slack........................... 7-23
Cleaning and lubricating the drive
chain........................................... 7-25
Checking and lubricating the
cables......................................... 7-26
Checking and lubricating the
throttle grip and cable................ 7-26
Checking and lubricating the
brake and shift pedals................ 7-26
Checking and lubricating the
brake and clutch levers.............. 7-27
Checking and lubricating the
sidestand.................................... 7-28
Lubricating the swingarm
pivots........................................... 7-28
Checking the front fork.................. 7-28
Checking the steering................... 7-29

TABLE OF CONTENTS
Checking the wheel bearings.......7-30
Battery..........................................7-30
Replacing the fuses......................7-31
Replacing a headlight bulb...........7-33
Auxiliary light ................................7-34
Tail/brake light..............................7-34
Replacing a turn signal light
bulb............................................7-35
Replacing the license plate light
bulb............................................7-35
Supporting the motorcycle.............7-36
Front wheel....................................7-37
Rear wheel....................................7-38
Troubleshooting ............................7-40
Troubleshooting charts .................7-41
MOTORCYCLE CARE AND
STORAGE..........................................8-1
Matte color caution ..........................8-1
Care.................................................8-1
Storage............................................8-3
SPECIFICATIONS.............................9-1
CONSUMER INFORMATION...........10-1
Identification numbers....................10-1
INDEX...............................................11-1

1
LOCATION OF IMPORTANT LABELS
1-1
1
2
Read and understand all of the labels on your vehicle. They contain important information for safe and proper operation of
your vehicle. Never remove any labels from your vehicle. If a label becomes difficult to read or comes off, a replacement
label is available from your Yamaha dealer.

1
LOCATION OF IMPORTANT LABELS
1-2
100kPa=1bar kPa, psi kPa, psi
200, 29 225, 33
200, 29 225, 33
1WD-F1668-00
21
31B-F1568-B0
READ THIS MANUAL
CAREFULLY BEFORE
OPERATING THIS
VEHICLE.
REMINDER

2
2-1
SAFETY INFORMATION
Therefore:
Be a Responsible Owner
As the vehicle’s owner, you are
responsible for the safe and proper
operation of your motorcycle.
Motorcycles are single-track vehicles.
Their safe use 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 instructions from
a competent source on all
aspects of motorcycle operation.
Observe the warnings and
maintenance requirements in this
Owner’s Manual.
Obtain qualified training in safe
and proper riding techniques.
Obtain professional technical
service as indicated in this
Owner’s Manual and/or when
made necessary by mechanical
conditions.
Never operate a motorcycle
without proper training or
instruction. Take a training
course. Beginners should receive
training from a certified instructor.
Contact an authorized motorcycle
dealer to find out about the
training courses nearest you.
Safe Riding
Perform the pre-operation checks
each time you use the vehicle to make
sure it is in safe operating condition.
Failure to inspect or maintain the
vehicle properly increases the
possibility of an accident or equipment
damage. See page 5-1 for a list of
pre-operation checks.
This motorcycle is designed 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.
Wear a brightly colored jacket.
Use extra caution when you are
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.
Never maintain a motorcycle
without proper knowledge.
Contact an authorized motorcycle
dealer to inform you on basic
motorcycle maintenance.Certain
maintenance can only be carried
out by certified staff.

2
2-2
SAFETY INFORMATION
Many accidents involve inexperi-
enced 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
caused by error of the motorcycle
operator. A typical error made by
the operator is veering wide on a
turn due to excessive speed or
undercornering (insufficient lean
angle for the speed).
Always obey the speed limit
andnever travel faster than
warrantedby 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 unles she or
she can firmly place both feet
on the passenger footrests.
Never ride under the influence of
alcohol or other drugs.
This motorcycle is designed for
on-road use only. It is not suitable
for off-road use.
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 helmet.
Wear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impairment
of vision that could delay seeing a
hazard.
The use of a jacket, heavy boots,
trousers, gloves, etc., is effective
in preventing or reducing
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.
Always wear protective clothing
that covers your legs, ankles, and
feet. The engine or exhaust
system become very hot during or
after operation and can cause
burns.
A passenger should also observe
the above precautions.

2
2-3
SAFETY INFORMATION
Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing
carbon monoxide can cause
headaches, dizziness, drowsiness,
nausea, confusion, and eventually
death.
Carbon Monoxide is a colorless,
odorless, tasteless gas which may be
present even if you do not see or
smell any engine exhaust. Deadly
levels of carbon monoxide can collect
rapidly and you can quickly be
overcome and unable to save
yourself. Also, deadly levels of carbon
monoxide can linger for hours or days
in enclosed or poorly ventilated areas.
If you experience any symptoms of
carbon monoxide poisoning, leave the
area immediately, get fresh air, and
SEEK MEDICAL TREATMENT.
Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can
rapidly reach dangerous levels.
Do not run engine in poorly
ventilated or partially enclosed
areas such as barns, garages, or
car-porchs.
Do not run engine outdoors
where engine exhaust can be
drawn into a building through
openings such as windows and
doors.
Loading
Adding accessories or cargo to your
motorcycle can adversely affect
stability 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, along
with the information about
accessories below, are some general
guidelines to follow if loading cargo to
your motorcycle:
The total weight of the operator,
passenger, accessories and cargo
must not exceed the maximum load
limit. Operation of an overloaded
vehicle could cause an accident.
Maximum load:
160 kg (353 lb)
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.
Securely pack your heaviest items
as close to the center of the
vehicle as possible and 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.
Properly adjust the suspension
for your load (suspension
adjustable models only), and
check the condition and
pressure of your tires.
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

2
SAFETY INFORMATION
2-4
tents, can create unstable
handling or a slow steering
response.
This vehicle is not designed to
pull a trailer or to be attached to
a sidecar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are
available only from a Yamaha dealer,
have been designed, tested, and
approved by Yamaha for use on your
vehicle. Many companies with no
connection to Yamaha manufacture
parts and accessories or offer other
modifications for Yamaha vehicles.
Yamaha is not in a position to test the
products that these aftermarket
companies produce. Therefore,
Yamaha can neither endorse nor
recommend the use of accessories
not sold by Yamaha or modifications
not specifically recommended by
Yamaha, even if sold and installed by
a Yamaha dealer.
Aftermarket Parts, Accessories,
and Modifications
While you may find aftermarket
products similar in design and quality
to genuine Yamaha accessories,
recognize that some aftermarket
accessories or modifications are not
suitable because of potential safety
hazards to you or others. Installing
aftermarket products or having other
modifications performed to your
vehicle that change any of the
vehicle’s design or operation
characteristics can put you and others
at greater risk of serious injury or
death. You are responsible for injuries
related to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under
“Loading” when mounting
accessories.
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.
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

2
SAFETY INFORMATION
2-5
operator and may limit control
ability, therefore, such acces-
sories are not recommended.
Use caution when adding
electrical 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
enginepower.
Aftermarket Tires and Rims
The tires and rims that came with your
motorcycle were designed to match
the performance capabilities and to
provide the best combination of
handling, braking, and comfort. Other
tires, rims, sizes, and combinations
may not be appropriate. Refer to page
7-16 for tire specifications and more
information on replacing your tires.
Transporting the Motorcycle
Be sure to observe following instruc-
tions before transporting the motorcy-
cle in another vehicle.
Remove all loose items from the
motorcycle.
Check that the fuel cock (if
equipped) is in the “OFF” position
and that there are no fuel leaks.
Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to
prevent movement.
Shift the transmission in gear (for
models with a manual
transmission).
Secure the motorcycle with
tiedowns or suitable straps that are
attached to solid parts of the
motorcycle, such as the frame or
upper front fork triple clamp (and
not, for example, to
rubber-mounted handlebars or
turn signals, or parts that could
break). Choose the location for the
straps carefully so the straps will
not rub against painted surfaces
during transport.
The suspension should be
compressed somewhat by the
tiedowns, if possible, so that the
motorcycle will not bounce
excessively during transport.
Helmets
Operating this vehicle without an
approved motorcycle helmet
increases your chances of a severe
head injury or death in the event of an
accident. The majority of fatalities from
motorcycle or scooter 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 select an approved motor-
cycle helmet.
Pay attention to the following when
choosing a motorcycle helmet.
The helmet must meet the safety
standard “SNI”.
The helmet size must match the
size of the rider’s head.
Never subject a helmet to heavy
shocks.

2
SAFETY INFORMATION
2-6
Correct usage
Wrong usage
Wearing the helmet correctly
Always connect the chin strap. In the
case of an accident, the helmet has a
much less chance of coming off if the
chin strap is connected.
Types of helmets and their usage
Full-type: use only for riding at
low to mid-range speeds.
Full-face-type: use for riding at
mid-range to high speeds.

3
DESCRIPTION
3-1
Left view
14 532
9 8 7 6
1. Coolant reservoir (page 7-13)
2. Main fuse (page 7-31)
3. Owner’s tool kit (page 7-1)
4. Passenger seat lock (page 4-15)
5. Storage compartment (page 4-17)
6. Shock absorber assembly spring preload adjusting ring (page 4-18)
7. Shift pedal (page 4-12)
8. Engine oil drain bolt (page 7-10)
9. Engine oil filter cartridge (page 7-10)

3
DESCRIPTION
3-2
4
9
123
876 5
Right view
1. Fuse box (page 7-31)
2. Battery (page 7-30)
3. Fuel tank cap (page 4-13)
4. Headlight (page 7-33)
5. Engine oil filler cap (page 7-10)
6. Engine oil level check window (page 7-10)
7. Brake pedal (page 4-12)
8. Rear brake light switch (page 7-21)
9. Rear brake fluid reservoir (page 7-22)

3
DESCRIPTION
3-3
1 2 3 4 5 6 7 8
Controls and instruments
1. Clutch lever (page 4-11)
2. Left handlebar switches (page 4-10)
3. Multi-function meter unit (page 4-4)
4. Main switch/steering lock (page 4-1)
5. Front brake fluid reservoir (page 7-22)
6. Right handlebar switches (page 4-10)
7. Throttle grip (page 7-16)
8. Brake lever (page 4-12)

4
INSTRUMENT AND CONTROL FUNCTIONS
4-1
TIP
WARNING
LOCK
To lock the steering
ON
OFF
LOCK
(on)
(off)
12
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.
All electrical circuits are supplied with
power; the meter lighting, taillight,
license plate light and auxiliary light
come on, and the engine can be
started. The key cannot be removed.
The headlight comes on automatically
when the engine is started and stays
on until the key is turned to“ ”, even
if the engine stalls.
All electrical systems are off. The key
can be removed.
Never turn the key to“ ” or “LOCK”
while the vehicle is moving. Other-
wise the electrical systems will be
switched off, which may result in
loss of control or an accident.
The steering is locked, and all
electrical systems are off. The key can
be removed.
1. Push.
2. Turn.
Turn the handlebars all the way to
the left.
Push the key in from the “ ”
position, and then turn it to “LOCK”
while still pushing it.
Remove the key.
1.
2.
3.

4
INSTRUMENT AND CONTROL FUNCTIONS
4-2
To unlock the steering
NOTICE
12
6 5
3
1 2 4
1. Push.
2. Turn.
Push the key in, and then turn it to “ ”
while still pushing it.
Indicator lights and warning
lights
1. Neutral indicator light “ ”
2. High beam indicator light “ ”
3. Turn signal indicator light “ ”
4. Shift timing indicator light
5. Oil pressure warning light “ ”
6. Engine trouble warning light “ ”
Turn signal indicator light “ ”
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
Neutral indicator light “ ”
This indicator light comes on when the
transmission is in the neutral position.
High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
Oil pressure warning light “ ”
This warning light comes on if the
engine oil pressure is low.
The electrical circuit of the warning
light can be checked by turning the key
to “ ”. The warning light should come
on and remain on until the engine is
started.
If the warning light does not come on
initially when the key is turned to “ ”,
have a Yamaha dealer check the
electrical circuit.
If the warning light comes on when
the engine is running, stop the
engine immediately and check oil
level. If the oil level is below the
minimum level, add sufficient oil of
the recommended type to raise it up
to the correct level. If the oil
pressure warning light remains on
even if the oil level