2008 YAMAHA WR 250R tire pressure

INSTRUMENT AND CONTROL FUNCTIONS
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always represents the entire adjusting
range. To obtain a precise adjustment,
it would be advisable to check the num-
ber of clicks of each damping force ad-
justing mechanism and to modify the

specifications as necessary.
WARNING

EWA10220
This shock absorber contains highly
pressurized nitrogen gas. For prop-
er handling, read and understand
the following information before
handling the shock absorber. The
manufacturer cannot be held re-
sponsible for property damage or
personal injury that may result from
improper handling.

Do not tamper with or attempt to
open the gas cylinder.

Do not subject the shock ab-
sorber to an open flame or other
high heat sources, otherwise it
may explode due to excessive
gas pressure.

Do not deform or damage the
gas cylinder in any way, as this
will result in poor damping per-formance.

Always have a Yamaha dealer
service the shock absorber.
EAU41940
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 diameter of the exhaust pipe.
The EXUP system valve is constantly
adjusted in accordance with the engine
speed by a computer-controlled servo-
motor.
CAUTION:

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.

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PRE-OPERATION CHECKS
EAU15593
The condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspec-
tion, to check the following points before each ride.
NOTE:

Pre-operation checks should be made each time the vehicle is used. Such an inspection can be accomplished in a very short
time; and the added safety it assures is more than worth the time involved.
WARNING

EWA11150
If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operating
the vehicle.

PRE-OPERATION CHECKS
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Throttle grip

Make sure that operation is smooth.

Check cable free play.

If necessary, have Yamaha dealer adjust cable free play and lubricate cable
and grip housing.6-18, 6-27
Control cables

Make sure that operation is smooth.

Lubricate if necessary.6-27
Drive chain

Check chain slack.

Adjust if necessary.

Check chain condition.

Lubricate if necessary.6-25, 6-26
Wheels and tires

Check for damage.

Check tire condition and tread depth.

Check air pressure.

Correct if necessary.6-18, 6-20
Brake and shift pedals

Make sure that operation is smooth.

Lubricate pedal pivoting points if necessary.6-27
Brake and clutch levers

Make sure that operation is smooth.

Lubricate lever pivoting points if necessary.6-28
Sidestand

Make sure that operation is smooth.

Lubricate pivot if necessary.6-29
Chassis fasteners

Make sure that all nuts, bolts and screws are properly tightened.

Tighten if necessary.—
Instruments, lights, signals
and switches

Check operation.

Correct if necessary.—
Sidestand switch

Check operation of ignition circuit cut-off system.

If system is defective, have Yamaha dealer check vehicle.3-18
ITEM CHECKS PAGE

PERIODIC MAINTENANCE AND MINOR REPAIR
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8*
Brake hoses

Check for cracks or damage.
√√√√√

Replace. Every 4 years
9*
Wheels

Check runout, spoke tightness
and for damage.

Tighten spokes if necessary.
√√√√
10

*
Tires

Check tread depth and for
damage.

Replace if necessary.

Check air pressure.

Correct if necessary.
√√√√√
11

*
Wheel bearings

Check bearing for looseness or
damage.
√√√√
12

*
Swingarm

Check operation and for exces-
sive play.
√√√√
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Drive chain

Check 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
14

*
Steering bearings

Check bearing play and steer-
ing for roughness.
√√√√√

Lubricate with lith-
ium-soap-based grease.Every 50000 km (30000 mi)
15

*
Chassis fasteners

Make sure that all nuts, bolts
and screws are properly tight-
ened.
√√√√√
16

Brake lever pivot
shaft

Lubricate with silicone grease.
√√√√√
NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING
ANNUAL
CHECK 1000 km
(600 mi)10000 km
(6000 mi)20000 km
(12000 mi)30000 km
(18000 mi)40000 km
(24000 mi)

PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU21382
Checking the throttle cable
free play
The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
EAU21401
Valve clearance
The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
EAU21640
Tires
To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
the specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING

EWA10500

The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).

The tire air pressure must be ad-
justed in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approved
for this model.
1. Throttle cable free play
1

PERIODIC MAINTENANCE AND MINOR REPAIR
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WARNING

EWA11020
Because loading has an enormous
impact on the handling, braking,
performance and safety characteris-
tics of your motorcycle, you should
keep the following precautions in
mind.

NEVER OVERLOAD THE MO-
TORCYCLE! Operation of an
overloaded motorcycle may re-
sult in tire damage, loss of con-
trol, or severe injury. Make sure
that the total weight of rider,passenger, cargo, and accesso-
ries does not exceed the speci-
fied maximum load for the
vehicle.

Do not carry along loosely
packed items, which can shift
during a ride.

Securely pack the heaviest
items close to the center of the
motorcycle and distribute the
weight evenly on both sides.

Adjust the suspension and tire
air pressure with regard to the
load.

Check the tire condition and air
pressure before each ride.Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail or
glass fragments in it, or if the sidewall is
cracked, have a Yamaha dealer re-
place the tire immediately.
NOTE:

The tire tread depth limits may differ
from country to country. Always comply
with the local regulations.
Tire air pressure (measured on cold
tires):
0–90 kg (0–198 lb):
Front:
125 kPa (18 psi) (1.25 kgf/cm
2

)
Rear:
175 kPa (25 psi) (1.75 kgf/cm
2

)
90–185 kg (198–408 lb):
Front:
150 kPa (22 psi) (1.50 kgf/cm
2

)
Rear:
200 kPa (29 psi) (2.00 kgf/cm
2

)
Maximum load*:
185 kg (408 lb)
* Total weight of rider, passenger, car-
go and accessories
1. Tire sidewall
2. Tire tread depth
Minimum tire tread depth (front and
rear):
1.6 mm (0.06 in)
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MOTORCYCLE CARE AND STORAGE
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fuel from deteriorating.
3. Perform the following steps to pro-
tect the cylinder, piston rings, etc.
from corrosion.
a. Remove the spark plug cap
and spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap.
WARNING

EWA10950
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
4. Lubricate all control cables and thepivoting points of all levers and
pedals as well as of the sidestand/
centerstand.
5. Check and, if necessary, correct
the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place
[less than 0 °C (30 °F) or more
than 30 °C (90 °F)]. For more in-
formation on storing the battery,
see page 6-31.
NOTE:

Make any necessary repairs before
storing the motorcycle.

SPECIFICATIONS
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Operation:
Left foot operation
Gear ratio:
1st:
37/14 (2.642)
2nd:
29/16 (1.813)
3rd:
29/22 (1.318)
4th:
26/25 (1.040)
5th:
24/27 (0.888)
6th:
22/28 (0.786)
Chassis:
Frame type:
Semi double cradle
Caster angle:
26.67 °
Trail:
111.0 mm (4.37 in)
Front tire:
Type:
With tube
Size:
80/100-21M/C 51P
Manufacturer/model:
BRIDGESTONE/TW-301 F
Rear tire:
Type:
With tubeSize:
120/80-18M/C 62P
Manufacturer/model:
BRIDGESTONE/TW-302 F
Loading:
Maximum load:
185 kg (408 lb)
* (Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):
Loading condition:
0–90 kg (0–198 lb)
Front:
125 kPa (18 psi) (1.25 kgf/cm
2

)
Rear:
175 kPa (25 psi) (1.75 kgf/cm
2

)
Loading condition:
90–185 kg (198–408 lb)
Front:
150 kPa (22 psi) (1.50 kgf/cm
2

)
Rear:
200 kPa (29 psi) (2.00 kgf/cm
2

)
Front wheel:
Wheel type:
Spoke wheel
Rim size:
21x1.60
Rear wheel:
Wheel type:
Spoke wheel
Rim size:
18x2.15
Front brake:
Type:
Single disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4
Rear brake:
Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4
Front suspension:
Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
270.0 mm (10.63 in)
Rear suspension:
Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
270.0 mm (10.63 in)
Electrical system:
Ignition system:
Transistorized coil ignition (digital)
Charging system:
AC magneto