wheel size YAMAHA WR 250X 2008 Owners Manual

INSTRUMENT AND CONTROL FUNCTIONS
3-7
2
34
5
6
7
8
9
on page 3-8.
NOTE:

The stopwatch will continue counting
when the vehicle is stopped. To stop
and/or resume counting, repeat steps 2
and 3.
Auto start
1. Push the “SELECT 1” button for at
least two seconds to set the auto
start.NOTE:

When the stopwatch is set to auto start,
the stopwatch indicator “ ” and the
distance-compensation tripmeter indi-
cator “ ” will start flashing, and the
digits in the display will start scrolling
from left to right.2. When the vehicle starts moving,
the stopwatch will start counting.
3. Push the “SELECT 1” button and
“SELECT 2” button together to
stop the stopwatch.
4. To resume counting, push the
“SELECT 1” button and “SELECT
2” button together again.
NOTE:

The stopwatch will continue counting
when the vehicle is stopped. To stop
and/or resume counting, repeat steps 3
and 4.
Measurement mode (for calibrating
the distance-compensation tripme-
ter’s reading)
The distance-compensation tripmeteris a feature intended to provide a more
accurate tripmeter reading for enduro
riding. Calibrating this meter in accor-
dance with the distances specified on
the enduro course map will help famil-
iarize the rider with the course. In addi-
tion, calibrating the meter may also be
necessary when using tire, wheel,
chain sprocket sizes, etc. other than
specified. For further information con-
cerning the use of this meter, please
consult your nearby Yamaha dealer.
Calibrate the distance-compensation
tripmeter as follows.
To increase the reading, push the
“SELECT 1” button. To decrease the
reading, push the “SELECT 2” button.
Pushing and holding either button will
increase or decrease the reading con-
tinuously until the button is released.
NOTE:

Calibrating the reading of the dis-
tance-compensation tripmeter is possi-
ble regardless of the stopwatch
operation.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
1
2
3
4
5
6
7
8
9Tire information
This motorcycle is equipped with tube
tires.
WARNING

EWA10460

The front and rear tires should
be of the same make and de-
sign, otherwise the handling
characteristics of the vehicle
cannot be guaranteed.

After extensive tests, only the
tires listed below have been ap-
proved for this model by
Yamaha Motor Co., Ltd.
WARNING

EWA10570

Have a Yamaha dealer replaceexcessively 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 a
Yamaha 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.
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.
Front tire:
Size:
110/70R17M/C 54H
Manufacturer/model:
BRIDGESTONE/BT090F
RADIAL G
Rear tire:
Size:
140/70R17M/C 66H
Manufacturer/model:
BRIDGESTONE/BT090R
RADIAL G

SPECIFICATIONS
8-2
1
2
3
4
5
6
7
8
9

Operation:
Left foot operation
Gear ratio:
1st:
37/14 (2.643)
2nd:
29/16 (1.813)
3rd:
29/22 (1.318)
4th:
26/25 (1.040)
5th:
24/27 (0.889)
6th:
22/28 (0.786)
Chassis:
Frame type:
Semi double cradle
Caster angle:
25.33 °
Trail:
76.0 mm (2.99 in)
Front tire:
Type:
With tube
Size:
110/70R17M/C 54H
Manufacturer/model:
BRIDGESTONE/BT090F RADIAL G
Rear tire:
Type:
With tubeSize:
140/70R17M/C 66H
Manufacturer/model:
BRIDGESTONE/BT090R RADIAL G
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:
200 kPa (29 psi) (2.00 kgf/cm
2

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

)
Loading condition:
90–185 kg (198–408 lb)
Front:
200 kPa (29 psi) (2.00 kgf/cm
2

)
Rear:
225 kPa (33 psi) (2.25 kgf/cm
2

)
Front wheel:
Wheel type:
Spoke wheel
Rim size:
17M/C x MT3.00
Rear wheel:
Wheel type:
Spoke wheel
Rim size:
17M/C x MT4.00
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:
265.0 mm (10.43 in)
Electrical system:
Ignition system:
Transistorized coil ignition (digital)
Charging system:
AC magneto