2010 YAMAHA WR 250X fuel reserve

INSTRUMENT AND CONTROL FUNCTIONS
3-3
3 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.
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 page
6-41 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 theself-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 an
accident.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
3-4
3
TIP

The multi-function display can be
set to the basic mode or the mea-
surement mode.


Tripmeter A will automatically re-
set to zero when changing from
the basic mode to the measure-
ment mode or vice versa.
Basic mode:

a speedometer


an odometer


two tripmeters (which show the
distance traveled since they were
last set to zero)


a fuel reserve tripmeter (which
shows the distance traveled since
the fuel level warning light came
on)


a clock


a self-diagnosis device
Measurement mode:


a speedometer


a distance-compensation tripme-
ter (which shows the accumulated
distance traveled since set to zero
and which can be calibrated to pro-
vide a more accurate tripmeter
reading)


a stopwatch (which shows the time
that has been accumulated since
the start of stopwatch measure-
ment)


a self-diagnosis device
TIP

Be sure to turn the key to “ON” be-
fore using the “SELECT 1”, “SE-
LECT 2” and “RESET” buttons.


When the key is turned to “ON”, all
of the display segments of the
multi-function display will appear
and then disappear, in order to test
the electrical circuit.


For the U.K. only: To switch the
speedometer and odometer/trip-
meter displays between kilometers
and miles, press the “SELECT 2”
button until the display changes af-
ter the key is turned to “ON”.
Basic mode
Odometer and tripmeter modesPush the “SELECT 2” button to switch
the display between the odometer
mode and the tripmeter modes A and B
in the following order:
odometer → tripmeter A → tripmeter B
→ odometer
1. Stopwatch indicator“”
2. Tripmeter A indicator“”/Distance-com-
pensation tripmeter“”
3. Tripmeter B indicator“”
1
3
2
U32DE5E0.book Page 4 Thursday, January 7, 2010 9:40 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-5
3
TIPIndicator“” comes on when tripmeter
A is selected, and indicator“” comes
on when tripmeter B is selected.
If the fuel level warning light comes on
(see page 3-2), the display will auto-
matically change to the fuel reserve
tripmeter mode “F” and start counting
the distance traveled from that point. In
this case, push the “SELECT 2” button
to switch the display between the vari-
ous tripmeter and odometer modes in
the following order:
fuel reserve tripmeter “F” → odometer
→ tripmeter A → tripmeter B → fuel re-
serve tripmeter “F”TIPThe fuel level warning light may not
function accurately while riding off road
as the fuel level reading changes due to
the movement and inclination of the ve-
hicle.If the fuel level warning light comes on
while riding in the measurement mode,
change to the basic mode and push the
“SELECT 2” button to display the fuel
reserve tripmeter.
TIPTo change from the measurement
mode to the basic mode, the stopwatch
and the distance-compensation tripme-
ter must be stopped.To reset a tripmeter, select it by push-
ing the “SELECT 2” button, and then
push the “RESET” button for at least
one second. If you do not reset the fuel
reserve tripmeter manually, it will reset
itself automatically and the display will
return to the prior mode after refueling
and traveling 5 km (3 mi).
ClockThe clock displays when the key is
turned to “ON”.
1. Tripmeter A indicator“”
1. Tripmeter B indicator“”
11
1. Fuel reserve tripmeter “F”
1
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INSTRUMENT AND CONTROL FUNCTIONS
3-12
3
3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10071]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15151
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAU13390
NOTICE
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.Your Yamaha engine has been de-
signed to use premium unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a differentbrand. Use of unleaded fuel will extend
spark plug life and reduce maintenance
costs.
1. Maximum fuel level
2. Fuel tank filler tube
2
1
Recommended fuel:
PREMIUM UNLEADED GASOLINE
ONLY
Fuel tank capacity:
7.6 L (2.01 US gal, 1.67 Imp.gal)
Fuel reserve amount (when the fuel
level warning light comes on):
2.1 L (0.55 US gal, 0.46 Imp.gal)
U32DE5E0.book Page 12 Thursday, January 7, 2010 9:40 AM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2115 mm (83.3 in)
Overall width:
810 mm (31.9 in)
Overall height:
1190 mm (46.9 in)
Seat height:
895 mm (35.2 in)
Wheelbase:
1425 mm (56.1 in)
Ground clearance:
265 mm (10.43 in)
Minimum turning radius:
2300 mm (90.6 in)Weight:With oil and fuel:
136 kg (300 lb)Engine:Engine type:
Liquid cooled 4-stroke, DOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
250 cm³
Bore × stroke:
77.0 × 53.6 mm (3.03 × 2.11 in)
Compression ratio:
11.80 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 10W-50, 15W-40,
20W-40 or 20W-50
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Without oil filter element replacement:
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)Cooling system:Coolant reservoir capacity (up to the
maximum level mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator capacity (including all routes):
0.90 L (0.95 US qt, 0.79 Imp.qt)Air filter:Air filter element:
Wet element
Fuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
7.6 L (2.01 US gal, 1.67 Imp.gal)
Fuel reserve amount:
2.1 L (0.55 US gal, 0.46 Imp.gal)Fuel injection:Throttle body:
ID mark:
3D71 10Spark plug(s):Manufacturer/model:
NGK/CR9EK
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction system:
Spur gear
Primary reduction ratio:
78/25 (3.120)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
42/13 (3.231)
Transmission type:
Constant mesh 6-speed
Operation:
Left foot operation
–20 –10 0
1020 30 40 50 C 10 30 50 70 90 110 0 130 F
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
U32DE5E0.book Page 1 Thursday, January 7, 2010 9:40 AM