lock YAMAHA WR 250R 2009 User Guide

PERIODIC MAINTENANCE AND ADJUSTMENT
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EAU21940
Spoke wheels
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.

Ride at moderate speeds after
changing a tire since the tire sur-
face must first be “broken in” for it
to develop its optimal characteris-
tics.
EAU22034
Adjusting the clutch lever free
play
The clutch lever free play should mea-
sure 10.0–15.0 mm (0.39–0.59 in) as
shown. Periodically check the clutch le-
ver free play and, if necessary, adjust it
as follows.
1. Slide the rubber cover back at the
clutch lever.
2. Loosen the locknut.
3. To increase the clutch lever free
play, turn the clutch lever free play
adjusting bolt in direction (a). Todecrease the clutch lever free play,
turn the adjusting bolt in direction
(b).
TIP

If the specified clutch lever free play
could be obtained as described above,
skip steps 4–7.
4. Fully turn the adjusting bolt in di-
rection (a) to loosen the clutch ca-
ble.
5. Loosen the locknut further down
the clutch cable.
6. To increase the clutch lever free
play, turn the clutch lever free play
1. Clutch lever free play
2. Locknut (clutch lever)
3. Adjusting bolt (clutch lever)
4. Rubber cover
3 2
1
(a)(b)
4

1. Locknut (clutch cable)
2. Clutch lever free play adjusting nut
(clutch cable)
12
(a)
(b)

PERIODIC MAINTENANCE AND ADJUSTMENT
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adjusting nut in direction (a). To
decrease the clutch lever free play,
turn the adjusting nut in direction
(b).
7. Tighten the locknut at the clutch
cable.
8. Tighten the locknut at the clutch le-
ver, and then slide the rubber cov-
er to its original position.

EAU22093
Adjusting the brake lever free
play
The brake lever free play should mea-
sure 5.0–8.0 mm (0.20–0.31 in) as
shown. Periodically check the brake le-
ver free play and, if necessary, adjust it
as follows.
1. Loosen the locknut at the brake le-
ver.
2. To increase the brake lever free
play, turn the brake lever free play
adjusting screw in direction (a). To
decrease the brake lever free play,
turn the adjusting screw in direc-tion (b).
3. Tighten the locknut.
WARNING

EWA10630

After adjusting the brake lever
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 hy-
draulic system, have a Yamaha
dealer bleed the system before
operating the motorcycle. Air in
the hydraulic system will dimin-
ish the braking performance,
which may result in loss of con-
trol and an accident.
1. Locknut
2. Brake lever free play adjusting screw
3. Brake lever free play
3
1
2
(b)
(a)

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EAU22580
Checking the brake fluid level
Front brake
Rear brake
Insufficient brake fluid may allow air toenter the brake system, possibly caus-
ing it to become ineffective.
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.

Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking perfor-
mance.

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 en-
ter the brake fluid reservoir whenrefilling. Water will significantly
lower the boiling point of the fluid
and may result in vapor lock.

Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.

As the brake pads wear, it is nor-
mal for the brake fluid level to grad-
ually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
1. Minimum level mark
1. Minimum level mark
11

Recommended brake fluid:
DOT 4

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EAU22731
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the TIP 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 re-
placed at the intervals listed below or
whenever they are damaged or leak-
ing.

Oil seals: Replace every two
years.

Brake hoses: Replace every four
years.
EAU22760
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU47221
To check the drive chain slack
1. Place the motorcycle on the side-
stand.
TIP

When 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. Push on the drive chain at the cen-
ter point between the chain ten-
sioner and the chain support
mounting bolt with a force of 50 N
(5.0 kgf, 36 lbf).
4. Measure drive chain slack be-
tween the swingarm and the top of
the chain link closest to the swing-
arm as shown.5. If the drive chain slack is incorrect,
adjust it as follows.
EAU22943
To adjust the drive chain slack
1. Loosen the axle nut and the lock-
nut on each side of the swingarm.
2. To tighten the drive chain, turn the
drive chain slack adjusting bolt on
each side of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting bolt on each side
of the swingarm in direction (b),
and then push the rear wheel for-
ward.
NOTICE:
Improper drive
chain slack will overload the en-

Drive chain slack:
8.0–13.0 mm (0.31–0.51 in)
1. Drive chain slack
2. Chain support mounting bolt
3. Chain tensioner
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PERIODIC MAINTENANCE AND ADJUSTMENT
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9 gine 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 with-
in the specified limits.

[ECA10571]

TIP

Using the alignment marks on each
side of the swingarm, make sure that
both chain pullers are in the same posi-
tion for proper wheel alignment.
3. Tighten the locknuts, and then
tighten the axle nut to the specified
torque.
EAU23023
Cleaning and lubricating the
drive chain
The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.
NOTICE

ECA10581
The drive chain must be lubricated
after washing the motorcycle and
riding in the rain.
1. Clean the drive chain with kero-
sene and a small soft brush.
NOTICE:
To prevent damaging
the O-rings, do not clean the
drive chain with steam cleaners,
high-pressure washers or inap-
propriate solvents.

[ECA11121]

2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant.
NOTICE:
Do not use
engine oil or any other lubri-
cants for the drive chain, as they
1. Axle nut
2. Locknut
3. Drive chain slack adjusting bolt
4. Alignment marks
1
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(b)
(a)

Tightening torque:
Axle nut:
125 Nm (12.5 m·kgf, 90.4 ft·lbf)

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EAU24204
Replacing a turn signal light
bulb
1. Remove the turn signal light lens
by removing the screw.
2. Remove the burnt-out bulb by
pushing it in and turning it counter-
clockwise.3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screw.
NOTICE:
Do not over-
tighten the screw, otherwise the
lens may break.
[ECA11191]

EAU24312
Replacing the license plate
light bulb
1. Remove the license plate light unit
by removing the screws.
2. Remove the socket (together with
the bulb) by pulling it out.
1. Screw
2. Turn signal light lens
1
2

1. Turn signal light bulb
1

1. Screw
1

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TIP

Make sure that there is enough space
between the brake pads before install-
ing the brake caliper onto the brake
disc.
2. Insert the wheel axle.
3. Install the axle nut.
4. Lower the front wheel so that it is
on the ground.
5. Tighten the axle nut and the wheel
axle pinch bolts to their specified
torques.
6. Push down hard on the handlebar
several times to check for proper
fork operation.
EAU25080
Rear wheel
EAU45181
To remove the rear wheel
WARNING

EWA10821
To avoid injury, securely support the
vehicle so 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 6-36.
3. Remove the axle nut and washer.
4. Loosen the locknut and drive chain
adjusting bolt on each side of the
swingarm.5. While supporting the brake caliper,
pull the wheel axle out.
Tightening torques:
Axle nut:
63 Nm (6.3 m·kgf, 45.6 ft·lbf)
Wheel axle pinch bolt:
23 Nm (2.3 m·kgf, 16.6 ft·lbf)
1. Axle nut
2. Washer
3. Drive chain slack adjusting bolt
4. Locknut
5. Brake caliper
1. Wheel axle
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PERIODIC MAINTENANCE AND ADJUSTMENT
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9 Engine overheating
WARNING

EWA10400

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.
TIP

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.
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 checkand repair the cooling system.Add coolant. (See TIP.)
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.

INDEX
A
Air filter element and check hose,
cleaning .................................................6-16
Auxiliary light bulb, replacing ...................6-36
B
Battery .....................................................6-31
Brake and clutch levers, checking and
lubricating ..............................................6-28
Brake fluid, changing ...............................6-25
Brake fluid level, checking .......................6-24
Brake lever ..............................................3-10
Brake lever free play, adjusting ...............6-22
Brake pedal .............................................3-10
Brake pedal, checking and lubricating .....6-28
C
Cables, checking and lubricating .............6-27
Care ...........................................................7-1
Catalytic converter ...................................3-13
Clutch lever ................................................3-9
Clutch lever free play, adjusting ..............6-21
Coolant ....................................................6-13
Coolant temperature warning light .............3-2
D
Dimmer switch ...........................................3-9
Drive chain, cleaning and lubricating .......6-26
Drive chain slack .....................................6-25
E
Engine break-in .........................................5-3
Engine idling speed .................................6-18
Engine oil and oil filter element ................6-10
Engine stop switch.....................................3-9
Engine trouble warning light ......................3-3
EXUP system ..........................................3-18
F
Front and rear brake pads, checking....... 6-23
Front fork, adjusting................................. 3-14
Front fork, bleeding ................................. 3-16
Front fork, checking ................................. 6-29
Fuel ......................................................... 3-11
Fuel consumption, tips for reducing .......... 5-3
Fuel level warning light .............................. 3-2
Fuel tank cap ........................................... 3-11
Fuses, replacing ...................................... 6-32
H
Handlebar switches ................................... 3-8
Headlight bulb, replacing ......................... 6-33
Helmet holder .......................................... 3-14
High beam indicator light ........................... 3-2
Horn switch................................................ 3-9
I
Identification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-19
Indicator and warning lights....................... 3-2
K
Key identification number .......................... 9-1
L
License plate light bulb, replacing ........... 6-35
M
Main switch/steering lock .......................... 3-1
Maintenance and lubrication, periodic ....... 6-3
Maintenance, emission control system ..... 6-2
Matte color, caution ................................... 7-1
Model label ................................................ 9-2
Multi-function display ................................. 3-3
N
Neutral indicator light................................. 3-2
P
Panels, removing and installing ................ 6-7
Parking ...................................................... 5-4
Part locations ............................................ 2-1
R
Rear brake light switch, adjusting ........... 6-23
Rear suspension, lubricating ................... 6-29
S
Safety information ..................................... 1-1
Seat ......................................................... 3-13
Shifting ...................................................... 5-2
Shift pedal ............................................... 3-10
Shock absorber assembly, adjusting ...... 3-17
Sidestand ................................................ 3-19
Sidestand, checking and lubricating........ 6-29
Spark plug, checking ................................. 6-9
Specifications ............................................ 8-1
Starting the engine .................................... 5-1
Start switch................................................ 3-9
Steering, checking................................... 6-30
Storage...................................................... 7-3
Supporting the motorcycle ...................... 6-36
T
Tail/brake light ......................................... 6-34
Throttle cable free play, checking ........... 6-18
Throttle grip and cable, checking and
lubricating ............................................. 6-27
Tires ........................................................ 6-19
Tool kit....................................................... 6-1
Troubleshooting ...................................... 6-39
Troubleshooting charts............................ 6-41
Turn signal indicator light .......................... 3-2
Turn signal light bulb, replacing .............. 6-35
Turn signal switch ..................................... 3-9