2010 YAMAHA WR 125R wheel

TABLE OF CONTENTSSAFETY INFORMATION ..................1-1
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view ........................................2-3
Controls and instruments.................2-5
INSTRUMENT AND CONTROL
FUNCTIONS.......................................3-1
Main switch/steering lock ................3-1
Indicator and warning lights ............3-2
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
Seat ..............................................3-10
Adjusting the shock absorber
assembly ...................................3-10
Sidestand ......................................3-11
Ignition circuit cut-off system ........3-12FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS................................. 5-1
Starting the engine ......................... 5-1
Shifting ........................................... 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 panels ..... 6-7
Checking the spark plug ................. 6-8
Engine oil and oil filter element ...... 6-9
Coolant ......................................... 6-12
Replacing the air filter element
and cleaning the check hose .... 6-13
Adjusting the engine idling
speed ........................................ 6-14
Adjusting the throttle cable free
play ........................................... 6-14
Valve clearance ............................ 6-15
Tires ............................................. 6-15Spoke wheels .............................. 6-17
Adjusting the clutch lever free
play ........................................... 6-18
Checking the front brake lever
free play .................................... 6-19
Adjusting the brake pedal free
play ........................................... 6-19
Checking the front and rear
brake pads ................................ 6-20
Checking the brake fluid level ...... 6-20
Changing the brake fluid .............. 6-21
Drive chain slack .......................... 6-22
Cleaning and lubricating the
drive chain ................................ 6-23
Checking and lubricating the
cables ....................................... 6-24
Checking and lubricating the
throttle grip and cable ............... 6-24
Checking and lubricating the
brake and clutch levers ............ 6-24
Checking and lubricating the
brake pedal ............................... 6-25
Checking and lubricating the
sidestand .................................. 6-25
Lubricating the swingarm
pivots ........................................ 6-26
Checking the front fork ................. 6-26
Checking the steering .................. 6-27
Checking the wheel bearings ....... 6-27
Battery ......................................... 6-27
Replacing the fuses ..................... 6-29U22BE1E0.book Page 1 Wednesday, September 16, 2009 1:46 PM

TABLE OF CONTENTS
Replacing the headlight bulb ........ 6-30
Replacing a tail/brake light bulb ... 6-31
Replacing a turn signal light
bulb ........................................... 6-31
Replacing the license plate light
bulb ........................................... 6-32
Replacing an auxiliary light bulb ... 6-32
Supporting the motorcycle ............ 6-32
Front wheel ................................... 6-33
Rear wheel ................................... 6-34
Troubleshooting ............................ 6-36
Troubleshooting charts ................. 6-37
MOTORCYCLE CARE AND
STORAGE.......................................... 7-1
Care ................................................ 7-1
Storage ...........................................7-3
SPECIFICATIONS ............................. 8-1
CONSUMER INFORMATION............. 9-1
Identification numbers .................... 9-1
U22BE1E0.book Page 2 Wednesday, September 16, 2009 1:46 PM

SAFETY INFORMATION
1-2
1 due to excessive speed or under-
cornering (insufficient lean angle
for the speed).
Always obey the speed limit and
never travel faster than warrant-
ed by road and traffic 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 foot-
rests during operation to main-
tain 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 motorcy-
cle accidents are the result of head in-
juries. The use of a safety helmet is the
single most critical factor in the preven-
tion 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 sys-
tem become very hot during or af-
ter operation and can cause burns.


A passenger should also observe
the above precautions.Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing car-
bon monoxide can cause headaches,
dizziness, drowsiness, nausea, confu-
sion, and eventually death.
Carbon Monoxide is a colorless, odor-
less, 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 poison-
ing, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT-
MENT.


Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.


Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.
U22BE1E0.book Page 2 Wednesday, September 16, 2009 1:46 PM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-2
4
Rear brakeCheck 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.6-20, 6-20
ClutchCheck operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.6-18
Throttle gripMake sure that operation is smooth.
Check cable free play.
If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-14, 6-24
Control cablesMake sure that operation is smooth.
Lubricate if necessary.6-24
Drive chainCheck chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary.6-22, 6-23
Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.6-15, 6-17
Brake pedalMake sure that operation is smooth.
Lubricate pedal pivoting point if necessary.6-25
Brake and clutch leversMake sure that operation is smooth.
Lubricate lever pivoting points if necessary.6-24
SidestandMake sure that operation is smooth.
Lubricate pivot if necessary.6-25 ITEM CHECKS PAGE
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-3
6
EAU17717
General maintenance and lubrication chart 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)
1*Air filter elementClean.√√
Replace.√√
2*BatteryCheck electrolyte level and specif-
ic gravity.
Make sure that the breather hose
is properly routed.√√√√√
3ClutchCheck operation.
Adjust.√√√√√
4*Front brakeCheck operation, fluid level and
vehicle for fluid leakage.√√√√√√
Replace brake pads. Whenever worn to the limit
5*Rear brakeCheck operation, fluid level and
vehicle for fluid leakage.√√√√√√
Replace brake pads. Whenever worn to the limit
6*Brake hosesCheck for cracks or damage.√√√√√
Replace. Every 4 years
7*WheelsCheck runout, spoke tightness
and for damage.
Tighten spokes if necessary.√√√√
8*TiresCheck tread depth and for dam-
age.
Replace if necessary.
Check air pressure.
Correct if necessary.√√√√√
U22BE1E0.book Page 3 Wednesday, September 16, 2009 1:46 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-4
6
9*Wheel bearingsCheck bearing for looseness or
damage.√√√√
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 500 km (300 mi) and after washing the motorcycle or riding in the rain
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.√√√√√
17 SidestandCheck operation.
Lubricate with lithium-soap-based
grease.√√√√√
18*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)
U22BE1E0.book Page 4 Wednesday, September 16, 2009 1:46 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
6
WARNING
EWA10570


Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the mo-
torcycle with excessively worn
tires decreases riding stability
and can lead to loss of control.


The replacement of all wheel-
and brake-related parts, includ-
ing the tires, should be left to aYamaha dealer, who has the
necessary professional knowl-
edge and experience.


It is not recommended to patch
a punctured tube. If unavoid-
able, however, patch the tube
very carefully and replace it as
soon as possible with a high-
quality product.
EAU21941
Spoke wheels
WARNING
EWA10610
The wheels on this model are not de-
signed for use with tubeless tires.
Do not attempt to use tubeless tires
on this model.To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
the specified wheels.

The wheel rims should be checked
for cracks, bends or warpage, and
the spokes for looseness or dam-
age before each ride. If any dam-
age 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 han-
dling characteristics, and a short-
ened tire life.
Front tire:
Size:
WR125R 80/90-21M/C 48P
WR125X 110/70-17M/C 54H
Manufacturer/model:
WR125R PIRELLI / MT90 SCOR-
PION
WR125X PIRELLI / SPORT DE-
MON
WR125R MICHELIN / SIRAC
Rear tire:
Size:
WR125R 110/80-18 M/C 58P
WR125X 140/70-17 M/C 66H
Manufacturer/model:
WR125R PIRELLI / MT90 SCOR-
PION
WR125X PIRELLI / SPORT DE-
MON
WR125R MICHELIN / SIRAC
U22BE1E0.book Page 17 Wednesday, September 16, 2009 1:46 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-22
6
EAU22760
Drive chain slack The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU22773
To check the drive chain slack
1. Place the motorcycle on the side-
stand.TIPWhen checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.2. Shift the transmission into the neu-
tral position.
3. Move the rear wheel by pushing
the motorcycle to locate the tight-
est portion of the drive chain, and
then measure the drive chain slack
as shown.4. If the drive chain slack is incorrect,
adjust it as follows.
EAU22934
To adjust the drive chain slack
1. Loosen the axle nut, then loosen
the locknut at each end of the
swingarm.
2. To tighten the drive chain, turn the
drive chain slack adjusting nut at
each end of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting nut at each end
of the swingarm in direction (b),
and then push the rear wheel for-
ward. NOTICE: Improper drive
chain slack will overload the en-
gine as well as other vital partsof the motorcycle and can lead
to chain slippage or breakage.
To prevent this from occurring,
keep the drive chain slack with-
in the specified limits.
[ECA10571]
TIPUsing the alignment marks on each
side of the swingarm, make sure that
both adjusting nuts are in the same po-
sition for proper wheel alignment.3. Tighten the locknuts, and then
tighten the axle nut to the specified
torques.
Drive chain slack:
40.0–50.0 mm (1.57–1.97 in)
1. Drive chain slack
1. Axle nut
2. Drive chain slack adjusting nut
3. Locknut
4. Alignment marks
U22BE1E0.book Page 22 Wednesday, September 16, 2009 1:46 PM