2011 YAMAHA WR 250R checking oil

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 lights and warning
lights ............................................ 3-2
Multi-function display ...................... 3-3
Handlebar switches ........................ 3-8
Clutch lever ..................................... 3-9
Shift pedal ..................................... 3-10
Brake lever ................................... 3-10
Brake pedal .................................. 3-10
Fuel tank cap ................................ 3-11
Fuel ............................................... 3-11
Catalytic converter ........................ 3-13
Seat .............................................. 3-13
Helmet holder ............................... 3-14
Adjusting the front fork .................. 3-14
Front fork bleeding ........................ 3-16
Adjusting the shock absorber
assembly ................................... 3-17
EXUP system ............................... 3-18
Sidestand ...................................... 3-19
Ignition circuit cut-off system ........ 3-19FOR 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 ............................... 6-2
Periodic maintenance chart for
the emission control system ....... 6-3
General maintenance and
lubrication chart .......................... 6-4
Removing and installing panels ..... 6-8
Checking the spark plug ............... 6-11
Engine oil and oil filter element .... 6-12
Coolant ......................................... 6-14
Cleaning the air filter element
and check hose ......................... 6-17
Adjusting the engine idling
speed ........................................ 6-19
Checking the throttle grip free
play ........................................... 6-19
Valve clearance ............................ 6-20
Tires ............................................. 6-20Spoke wheels ............................... 6-22
Adjusting the clutch lever free
play ............................................ 6-22
Adjusting the brake lever free
play ............................................ 6-23
Checking the shift pedal ............... 6-24
Brake light switches ...................... 6-24
Checking the front and rear
brake pads ................................. 6-25
Checking the brake fluid level ....... 6-25
Changing the brake fluid ............... 6-26
Drive chain slack ........................... 6-27
Cleaning and lubricating the
drive chain ................................. 6-28
Checking and lubricating the
cables ........................................ 6-29
Checking and lubricating the
throttle grip and cable ................ 6-29
Checking and lubricating the
brake and clutch levers ............. 6-29
Checking and lubricating the
brake pedal ................................ 6-30
Checking and lubricating the
sidestand ................................... 6-30
Lubricating the swingarm
pivots ......................................... 6-31
Checking the front fork .................. 6-31
Checking the steering ................... 6-32
Checking the wheel bearings ........ 6-32
Battery .......................................... 6-32
Replacing the fuses ...................... 6-3432D-9-E6.book 1 ページ ２０１１年１月７日　金曜日　午後３時１０分

PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
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EAU48340
Checking the spark plug 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 ac-
cordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plug can re-
veal the condition of the engine.
The porcelain insulator around the cen-
ter 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 differ-
ent color, the engine could be operating
improperly. Do not attempt to diagnose
such problems yourself. Instead, have
a Yamaha dealer check the vehicle.
If the spark plug shows signs of elec-
trode erosion and excessive carbon or
other deposits, it should be replaced.
Before installing a spark plug, the spark
plug gap should be measured with awire thickness gauge and, if necessary,
adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads.
TIPIf a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4–1/2 turnpast finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible.NOTICE
ECA10840
Do not use any tools to remove or in-
stall the spark plug cap, otherwise
the ignition coil coupler may get
damaged. The spark plug cap may
be difficult to remove because the
rubber seal on the end of the cap fits
tightly. To remove the spark plug
cap, simply twist it back and forth
while pulling it out; to install it, twistit back and forth while pushing it in.
Specified spark plug:
NGK/CR9EK
1. Spark plug gapSpark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Tightening torque:
Spark plug:
13 Nm (1.3 m·kgf, 9.4 ft·lbf)11
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PERIODIC MAINTENANCE AND ADJUSTMENT
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9 6. Remove the oil filter element and
O-rings.
7. Install a new oil filter element and
new O-rings.
TIPMake sure that the O-rings are properlyseated.
8. Install the oil filter element cover by
installing the bolts, then tightening
them to the specified torque.
9. Install the engine oil drain bolt and
its new gasket, and then tighten
the bolt to the specified torque.
10. Refill with the specified amount of
the recommended engine oil, and
then install and tighten the oil filler
cap.
TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-tem have cooled down.NOTICE
ECA11620

In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.

Make sure that no foreign mate-rial enters the crankcase.
11. Start the engine, and then let it idle
for several minutes while checking
1. Oil filter element cover
2. Oil filter element cover bolt
1. O-ring
2. Oil filter element
1
2
1
2
Tightening torque:
Oil filter element cover bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Tightening torque:
Engine oil drain bolt:
20 Nm (2.0 m·kgf, 14 ft·lbf)
Recommended oil:
See page 8-1.
Oil quantity:
Without oil filter element replace-
ment:
1.30 L (1.37 US qt, 1.14 Imp.qt)
With oil filter element replacement:
1.40 L (1.48 US qt, 1.23 Imp.qt)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
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9it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
12. Turn the engine off, wait a few min-
utes until the oil settles, and then
check the oil level and correct it if
necessary.
NOTICE
ECA11231
After changing the engine oil, make
sure to check the oil pressure as de-
scribed below.
Loosen the bleed bolt.

Start the engine and keep it
idling until oil flows out. If no oil
comes out after one minute,
turn the engine off immediately
so it will not seize. If this occurs,
have a Yamaha dealer repair the
vehicle.

After checking the oil pressure,
tighten the bleed bolt to thespecified torque.
EAU20070
Coolant The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU20254
To check the coolant level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.TIP
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.

Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to theside can result in a false reading.
2. Check the coolant level in the cool-
ant reservoir.
TIPThe coolant should be between theminimum and maximum level marks.
1. Bleed boltTightening torque:
Bleed bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
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9
EAU45322
Adjusting the engine idling
speed The engine idling speed must be
checked and, if necessary, adjusted as
follows.TIPA digital tachometer is needed to makethis adjustment.
1. Position the digital tachometer at
the ignition coil, which is located in
the spark plug cap.
2. Check the engine idling speed
and, if necessary, adjust it to spec-
ification by turning the idle adjust-
ing screw. To increase the engine
idling speed, turn the screw in di-
rection (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
TIPIf the specified idling speed cannot be
obtained as described above, have aYamaha dealer make the adjustment.
EAU21384
Checking the throttle grip free
play The throttle grip free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
inner edge of the throttle grip. Periodi-
cally check the throttle grip free play
and, if necessary, have a Yamaha
dealer adjust it.
1. Idle adjusting screwEngine idling speed:
1450–1650 r/min
1
(b)
(a)
1. Throttle grip free play
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
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9ing 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 when
refilling. Water will significantlylower 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.
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.
Recommended brake fluid:
DOT 4
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PERIODIC MAINTENANCE AND ADJUSTMENT
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EAU23095
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 ca-
bles and cable ends should be lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
WARNING! Damage to the outer
housing of cables may result in in-
ternal rusting and cause interfer-
ence with cable movement. Replace
damaged cables as soon as possi-
ble to prevent unsafe condi-
tions.
[EWA10711]

EAU23114
Checking and lubricating the
throttle grip and cable The operation of the throttle grip should
be checked before each ride. In addi-
tion, the cable should be lubricated by a
Yamaha dealer at the intervals speci-
fied in the periodic maintenance chart.
The throttle cable is equipped with a
rubber cover. Make sure that the cover
is securely installed. Even though the
cover is installed correctly, it does not
completely protect the cable from water
entry. Therefore, use care not to pour
water directly onto the cover or cable
when washing the vehicle. If the cable
or cover becomes dirty, wipe clean with
a moist cloth.
EAU23142
Checking and lubricating the
brake and clutch levers Brake lever
Clutch lever
The operation of the brake and clutch
levers should be checked before each
ride, and the lever pivots should be lu-
bricated if necessary.
Recommended lubricant:
Yamaha Chain and Cable Lube or
engine oil
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-31
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EAUM1651
Lubricating the swingarm
pivots The swingarm pivots must be lubricat-
ed by a Yamaha dealer at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU23272
Checking the front fork The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion. WARNING! To avoid injury,
securely support the vehicle so
there is no danger of it falling
over.
[EWA10751]

2. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
NOTICE
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-pair it.
Recommended lubricant:
Lithium-soap-based grease
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