air suspension YAMAHA WR 250X 2012 Owners Manual

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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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INSTRUMENT AND CONTROL FUNCTIONS
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234
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6
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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.
EAU14793
Front fork bleeding
WARNING
EWA10200
Always bleed both fork legs, other-
wise poor handling and loss of sta-bility may result.
When riding in extremely rough condi-
tions, the air temperature and pressure
in the front fork will rise. This will in-
crease the spring preload and harden
the front suspension. If this occurs,
bleed the front fork as follows.
1. Lift the front wheel off the ground according to the procedure on
page 6-38.TIPWhen bleeding the front fork, there
should be no weight on the front end ofthe vehicle.
2. Remove the bleed screws and al- low all of the air to escape from
each fork leg. 3. Install the bleed screws.
4. Lower the front wheel so that it is
on the ground, and then put the
sidestand down.
1. Bleed screw
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SPECIFICATIONS
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2
3
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6
78
9
Gear ratio:1st: 2.642 (37/14)
2nd: 1.813 (29/16)
3rd:
1.318 (29/22)
4th: 1.040 (26/25)
5th: 0.889 (24/27)
6th:
0.786 (22/28)Chassis:Frame type: Semi double cradle
Caster angle:
25.33 
Trail: 76 mm (3.0 in)Front tire:Type:
With tube
Size: 110/70R17M/C 54H
Manufacturer/model: BRIDGESTONE/BT090F RADIAL GRear tire:Type: With tube
Size: 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 (2.00 kgf/cm
2, 29 psi)
Rear:
200 kPa (2.00 kgf/cm2, 29 psi)
Loading condition: 90–185 kg (198 –408 lb)
Front: 200 kPa (2.00 kgf/cm2, 29 psi)
Rear:
225 kPa (2.25 kgf/cm2, 33 psi)
Front wheel:Wheel type: Spoke wheel
Rim size:
17M/C x MT3.00Rear wheel:Wheel type: Spoke wheel
Rim size:
17M/C x MT4.00Front brake:Type: Single disc brake
Operation:
Right hand operation Specified brake fluid:
DOT 4
Rear brake:Type: Single disc brake
Operation: Right foot operation
Specified brake fluid:
DOT 4Front 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: TCI
Charging system: AC magnetoBattery:Model: YTZ7S
Voltage, capacity: 12 V, 6.0 Ah
32D-9-E9-E0.book 2 ページ ２０１１年６月２９日　水曜日　午前１１時３４分