2010 YAMAHA YZF-R125 steering

TABLE OF CONTENTSSAFETY INFORMATION ..................1-1
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view ........................................2-2
Controls and instruments.................2-3
INSTRUMENT AND CONTROL
FUNCTIONS.......................................3-1
Main switch/steering lock ................3-1
Indicator and warning lights ............3-2
Tachometer ....................................3-3
Multi-function display ......................3-3
Handlebar switches ........................3-5
Clutch lever .....................................3-6
Shift pedal .......................................3-6
Brake lever .....................................3-6
Brake pedal ....................................3-7
Fuel tank cap ..................................3-7
Fuel .................................................3-8
Catalytic converters ........................3-9
Rider seat .....................................3-10
Sidestand ......................................3-10
Ignition circuit cut-off system ........3-11
FOR YOUR SAFETY –
PRE-OPERATION CHECKS..............4-1
OPERATION AND IMPORTANT
RIDING POINTS.................................5-1
Starting the engine .........................5-1Shifting ........................................... 5-2
Tips for reducing fuel
consumption ............................... 5-3
Engine break-in .............................. 5-3
Parking ........................................... 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 6-1
Owner’s tool kit ............................... 6-1
Periodic maintenance chart for the
emission control system ............. 6-2
General maintenance and
lubrication chart .......................... 6-3
Removing and installing the
cowlings and panel ..................... 6-7
Checking the spark plug ................. 6-9
Engine oil and oil filter element .... 6-10
Coolant ......................................... 6-13
Replacing the air filter element
and cleaning the check hose .... 6-15
Adjusting the engine idling
speed ........................................ 6-15
Adjusting the throttle cable free
play ........................................... 6-16
Valve clearance ............................ 6-17
Tires ............................................. 6-17
Cast wheels .................................. 6-19
Adjusting the clutch lever free
play ........................................... 6-20
Checking the front brake lever
free play .................................... 6-21Adjusting the brake pedal free
play ........................................... 6-21
Checking the front and rear brake
pads .......................................... 6-21
Checking the brake fluid level ...... 6-22
Changing the brake fluid .............. 6-23
Drive chain slack .......................... 6-23
Cleaning and lubricating the drive
chain ......................................... 6-25
Checking and lubricating the
cables ....................................... 6-25
Checking and lubricating the
throttle grip and cable ............... 6-26
Checking and lubricating the
brake and shift pedals .............. 6-26
Checking and lubricating the
brake and clutch levers ............ 6-27
Checking and lubricating the
sidestand .................................. 6-27
Lubricating the swingarm
pivots ........................................ 6-28
Checking the front fork ................. 6-28
Checking the steering .................. 6-29
Checking the wheel bearings ....... 6-29
Battery ......................................... 6-29
Replacing the fuses ..................... 6-31
Replacing a headlight bulb .......... 6-32
Tail/brake light ............................. 6-32
Replacing a turn signal light
bulb ........................................... 6-32U5D7E1E0.book Page 1 Monday, July 13, 2009 11:55 AM

SAFETY INFORMATION
1-3
1


Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.


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 stabili-
ty and handling if the weight distribution
of the motorcycle is changed. To avoid
the possibility of an accident, use ex-
treme 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, pas-
senger, accessories and cargo must
not exceed the maximum load limit.
Operation of an overloaded vehicle
could cause an accident.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. Se-
curely pack your heaviest items as
close to the center of the vehicle as
possible and make sure to distrib-
ute the weight as evenly as possi-
ble on both sides of the motorcycle
to minimize imbalance or instabili-
ty.


Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories 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-ad-
justable models only), and
check the condition and pres-
sure of your tires.
Never attach any large or heavy
items to the handlebar, front
fork, or front fender. Theseitems, including such cargo as
sleeping bags, duffel bags, or
tents, can create unstable han-
dling or a slow steering re-
sponse.


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 avail-
able 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 acces-
sories 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 en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
Maximum load:
185 kg (408 lb)
U5D7E1E0.book Page 3 Monday, July 13, 2009 11:55 AM

SAFETY INFORMATION
1-4
1 Aftermarket Parts, Accessories, and
Modifications
While you may find aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accessories
or modifications are not suitable be-
cause of potential safety hazards to you
or others. Installing aftermarket prod-
ucts or having other modifications per-
formed 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 “Load-
ing” when mounting accessories.


Never install accessories or carry
cargo that would impair the perfor-
mance of your motorcycle. Care-
fully 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 ob-
scure lights or reflectors.
Accessories fitted to the handle-
bar or the front fork area can
create instability due to improper
weight distribution or aerody-
namic 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 aerody-
namic effects. Wind may at-
tempt to lift the motorcycle, or
the motorcycle may become un-
stable in cross winds. These ac-
cessories may also cause
instability when passing or being
passed by large vehicles.
Certain accessories can dis-
place the operator from his or
her normal riding position. This
improper position limits the free-
dom of movement of the opera-tor and may limit control ability,
therefore, such accessories are
not recommended.


Use caution when adding electri-
cal accessories. If electrical acces-
sories 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.
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, brak-
ing, and comfort. Other tires, rims, siz-
es, and combinations may not be
appropriate. Refer to page 6-17 for tire
specifications and more information on
replacing your tires.
U5D7E1E0.book Page 4 Monday, July 13, 2009 11:55 AM

DESCRIPTION
2-3
2
EAU10430
Controls and instruments1. Clutch lever (page 3-6)
2. Left handlebar switches (page 3-5)
3. Multi-function display (page 3-3)
4. Main switch/steering lock (page 3-1)
5. Tachometer (page 3-3)
6. Right handlebar switches (page 3-5)
7. Throttle grip (page 6-16)
8. Brake lever (page 3-6)U5D7E1E0.book Page 3 Monday, July 13, 2009 11:55 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
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.
EAU36870
ON
All electrical circuits are supplied with
power, the meter lighting, taillight, li-
cense plate light and auxiliary lights
come on, and the engine can be start-
ed. The key cannot be removed.TIPThe headlight comes on automatically
when the engine is started and stays on
until the key is turned to “OFF”, even if
the engine stalls.
EAU10661
OFF
All electrical systems are off. The key
can be removed.
WARNING
EWA10061
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.
EAU10691
LOCK
The steering is locked, and all electrical
systems are off. The key can be re-
moved.To lock the steering
1. Turn the handlebars all the way to
the left or right.
2. Push the key in from the “OFF” po-
sition, and then turn it to “LOCK”
while still pushing it.
3. Remove the key.1. Push.
2. Turn.
U5D7E1E0.book Page 1 Monday, July 13, 2009 11:55 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-2
3To unlock the steering
Push the key into the main switch, and
then turn it to “OFF” while still pushing
it.
EAU11004
Indicator and warning lights
EAU11020
Turn signal indicator light“”
This indicator light flashes when the
t u r n s i g n a l s w i t c h i s p u s h e d t o t h e l e f t o r
right.
EAU11060
Neutral indicator light“”
This indicator light comes on when the
transmission is in the neutral position.
EAU11080
High beam indicator light“”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAUM2294
Coolant temperature warning
light“”
This warning light comes on if the en-
gine overheats. If this occurs, stop the
engine immediately and allow the en-
gine to cool.
The electrical circuit of the warning light
can be checked by turning the key to
“ON”. The warning light should come
on for a few seconds, and then go off.
If the warning light does not come on
initially when the key is turned to “ON”,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.NOTICE
ECA10021
Do not continue to operate the en-
gine if it is overheating.
1. Push.
2. Turn.
1. Neutral indicator light“”
2. Turn signal indicator light“”
3. High beam indicator light“”
4. Engine trouble warning light“”
5. Coolant temperature warning light“”
U5D7E1E0.book Page 2 Monday, July 13, 2009 11:55 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-4
6
10*SwingarmCheck operation and for exces-
sive play.√√√√
Lubricate with molybdenum disul-
fide grease.Every 24000 km (14000 mi)
11 Drive chainCheck chain slack, alignment and
condition.
Adjust and lubricate chain with a
special O-ring chain lubricant
thoroughly.Every 1000 km (600 mi) and after washing the motorcycle, riding in the rain or
riding in wet areas
12*Steering bearingsCheck bearing play and steering
for roughness.√√√√√
Lubricate with lithium-soap-based
grease.Every 24000 km (14000 mi)
13*Chassis fastenersMake sure that all nuts, bolts and
screws are properly tightened.√√√√√
14Brake lever pivot
shaftLubricate with silicone grease.√√√√√
15Brake pedal pivot
shaftLubricate with lithium-soap-based
grease.√√√√√
16Clutch lever pivot
shaftLubricate with lithium-soap-based
grease.√√√√√
17Shift pedal pivot
shaftLubricate with lithium-soap-based
grease.√√√√√
18 SidestandCheck operation.
Lubricate.√√√√√
19*Sidestand switchCheck operation.√√√√√√ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING
ANNUAL
CHECK 1000 km
(600 mi)6000 km
(3500 mi)12000 km
(7000 mi)18000 km
(10500 mi)24000 km
(14000 mi)
U5D7E1E0.book Page 4 Monday, July 13, 2009 11:55 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-29
6
EAU23283
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground. (See page 6-33 for more
information.) WARNING! To
avoid injury, securely support
the vehicle so there is no danger
of it falling over.
[EWA10751]
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
EAU23291
Checking the wheel bearings The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
EAU23313
Battery A poorly maintained battery will corrode
and discharge quickly. The electrolyte
level, battery lead connections and
breather hose routing should be
checked before each ride and at the in-
tervals specified in the periodic mainte-
nance and lubrication chart.
WARNING
EWA10770


Electrolyte is poisonous and
dangerous since it contains sul-
furic acid, which causes severe
burns. Avoid any contact with
skin, eyes or clothing and al-
ways shield your eyes when
working near batteries. In case
of contact, administer the fol-
lowing FIRST AID.
EXTERNAL: Flush with plenty
of water.
INTERNAL: Drink large quan-
tities of water or milk and im-
mediately call a physician.
EYES: Flush with water for 15
minutes and seek prompt
medical attention.
U5D7E1E0.book Page 29 Monday, July 13, 2009 11:55 AM