2012 YAMAHA WR 250R check engine

TABLE OF CONTENTSSAFETY INFORMATION .................. 1-1
DESCRIPTION .................................. 2-1
Left view .......................................... 2-1
Right view ........................................ 2-2
Controls and instrument s................. 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 ........ 3-19 FOR 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 contro l 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 ............................................. 6-20 Spoke 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-E8.book 1 ページ ２０１１年６月２８日　火曜日　午前１０時２７分

1-4
1
SAFETY INFORMATION
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 electr ical system, an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
Aftermarket Ti res 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 6-20 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 pre-
vent movement.

Shift the transmission in gear (for
models with a manual transmis-
sion).

Secure the motorcycle with
tie-downs 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-mount-
ed handlebars or turn signals, or
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DESCRIPTION
2-2
12
3
4
5
6
7
8
9
EAU10420
Right view
3
1
2
7 6
5
4
1. Rear brake fluid reservoir (page 6-25)
2. Air filter element (page 6-17)
3. Rear brake light switch (page 6-24)
4. Bleed screw (page 3-16)
5. Engine oil filler cap (page 6-12)
6. Engine oil level check window (page 6-12)
7. Shock absorber assembly rebound damping force adjusting knob
(page 3-17)
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INSTRUMENT AND CONTROL FUNCTIONS
3-2
234
5
6
7
8
9
To unlock the steering
Push the key in, and then turn it to
“OFF” while still pushing it.
EAU49391
Indicator lights and warning
lights
EAU11020
Turn signal indicator light “ ”
This indicator light flashes when the
turn signal switch is pushed to the left or
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.
EAU11352
Fuel level warning light “ ”
This warning light comes on when the
fuel level drops below approximately
2.1 L (0.55 US gal, 0.46 Imp.gal). When
this occurs, refuel as soon as possible.
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.
EAU11446
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
1. Push.
2. Turn.12
1. Coolant temperature warning light “ ”
2. Fuel level warning light “ ”
3. Neutral indicator light “ ”
4. Turn signal indicator light “ ”
5. High beam indicator light “ ”
6. Engine trouble warning light “ ”
1
234
56
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INSTRUMENT AND CONTROL FUNCTIONS
3-3
1
23
4
5
6
7
8
9can 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.TIP
For radiator-fan-equipped vehi-
cles, the radiator fan(s) automati-
cally switch on or off according to
the coolant temperature in the ra-
diator.

If the engine overheats, see page6-44 for further instructions.
EAU11534
Engine trouble warning light “ ”
This warning light comes on or flashes
if a problem is detected in the electrical
circuit monitoring the engine. If this oc-
curs, have a Yamaha dealer check the
self-diagnosis system. (See page 3-8 for an explanation of the self-diagnosis
device.)
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.
EAU45276
Multi-function display
WARNING
EWA12312
Be sure to stop the vehicle before
making any setting changes to the
multi-function display. Changing
settings while riding can distract the
operator and increase the risk of anaccident.1. “RESET” button
2. “SELECT 1” button
3. “SELECT 2” button
4. Clock/stopwatch
5. Speedometer
6. Odometer/tripmeter/fuel reserve tripmeter
1
23
4
5
6
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INSTRUMENT AND CONTROL FUNCTIONS
3-8
234
5
6
7
8
9
2. Reset the distance-compensation
tripmeter to zero by pushing the
“RESET” button for at least two
seconds.
Resetting the distance-compensation
tripmeter in combination with the stop-watch1. Stop the stopwatch.
2. Reset the distance-compensation tripmeter and the stopwatch to
zero by pushing the “RESET” but-
ton for at least two seconds.
Self-diagnosis device
This model is equipped with a self-diag-
nosis device for vari ous electrical cir-
cuits.
If a problem is detected in any of those
circuits, the engine trouble warning light
will come on and the display will indi-
cate an error code.
If the display indicates any error codes,
note the code number, and then have a
Yamaha dealer check the vehicle.
NOTICE
ECA11590
If the display indicates an error
code, the vehicle should be checked
as soon as possible in order to avoidengine damage.
EAU12348
Handlebar switches Left
Right
1. Error code display
1
1. Dimmer switch “ / ”
2. Turn signal switch “ / ”
3. Horn switch “ ”
1. Engine stop switch “ / ”
2. Start switch “ ”
1
2
31
2
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INSTRUMENT AND CONTROL FUNCTIONS
3-18
234
5
6
7
8
9
TIPTo obtain a precise adjustment, it is ad-
visable to check the actual total number
of clicks or turns of each damping force
adjusting mechanism. This adjustment
range may not exactly match the spec-
ifications listed due to small differences
in production.
WARNING
EWA10221
This shock absorber assembly con-
tains highly pressurized nitrogen
gas. Read and understand the fol-
lowing information before handling
the shock absorber assembly.
Do not tamper with or attempt to
open the cylinder assembly.

Do not subject the shock ab-
sorber assembly to an open
flame or other high heat source.
This may cause the unit to ex-
plode due to excessive gas
pressure.

Do not deform or damage the
cylinder in any way. Cylinder
damage will result in poor
damping performance.

Do not dispose of a damaged or
worn-out shock absorber as-
sembly yourself. Take the shock
absorber assembly to a Yamahadealer for any service.
EAU41941
EXUP system This model is equipped with Yamaha’s
EXUP (EXhaust Ultimate Power valve)
system. This system boosts engine
power by means of a valve that regu-
lates the inner diameter of the exhaust
pipe. The EXUP system valve is con-
stantly adjusted in accordance with the
engine speed by a computer-controlled
servomotor.NOTICE
ECA15610
The EXUP system has been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-mance of or damage to the engine.
1. Compression damping force adjusting screwCompression damping setting:Minimum (soft):
12 click(s) in direction (b)*
Standard: 10 click(s) in direction (b)*
Maximum (hard): 1 click(s) in direction (b)*
* With the adjusting screw fully turned
in direction (a)
1
(a)
(b)
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INSTRUMENT AND CONTROL FUNCTIONS
3-19
1
23
4
5
6
7
8
9
EAU15305
Sidestand The sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
vehicle upright.TIPThe built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See the following section for an expla-
nation of the ignition circuit cut-off sys-tem.)
WARNING
EWA10241
The vehicle must not be ridden with
the sidestand down, or if the side-
stand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the respon-
sibility of raising the sidestand be-
fore starting off. Therefore, check
this system regularly and have aYamaha dealer repair it if it does not
function properly.
EAU44892
Ignition circuit
cut-off system The ignition circuit cut-off system (com-
prising the sidestand switch, clutch
switch and neutral switch) has the fol-
lowing functions.
It prevents starting when the trans-
mission is in gear and the side-
stand is up, but the clutch lever is
not pulled.

It prevents starting when the trans-
mission is in gear and the clutch le-
ver is pulled, but the sidestand is
still down.

It cuts the running engine when the
transmission is in gear and the sid-
estand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.
32D-9-E8.book 19 ページ ２０１１年６月２８日　火曜日　午前１０時２７分