2015 YAMAHA WR 250R check engine

PERIODIC MAINTENANCE AND ADJUSTMENT
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EAU45144
Engine oil and oil filter
elementThe engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter ele-
ment replaced at the intervals specified
in the periodic maintenance and lubri-
cation chart.
To check the engine oil level 1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Wait a few minutes until the oil set- tles, and then check the oil level
through the check window located
at the bottom-right side of the
crankcase.TIPThe engine oil should be between theminimum and maximum level marks. 4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
To change the engine oil (with or
without oil filter element replace-
ment) 1. Place the vehicle on a level sur- face.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Place an oil pan under the engine to collect the used oil.
4. Remove the engine oil filler cap, the engine oil drain bolt and its
gasket to drain the oil from the
crankcase.
TIPSkip steps 5–8 if the oil filter element isnot being replaced.
5. Remove the oil filter element cover by removing the bolts.
1. Engine oil filler cap
2. Maximum level mark
3. Minimum level mark
4. Engine oil level check window
1
2
3 4
1. Engine oil drain bolt
2. Gasket
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PERIODIC MAINTENANCE AND ADJUSTMENT
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6. Remove the oil filter element and
O-rings.
7. Install a new oil filter element and new O-rings.
TIPMake sure that the O-rings are properlyseated.
8. Install the oil filter element cover by installing the bolts, then tightening
them to the specified torque.
9. Install the engine oil drain bolt and its new gasket, and then tighten
the bolt to the specified torque.
10. Refill with the specified amount of the recommended engine oil, and
then install and tighten the oil filler
cap.
TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-tem have cooled down.NOTICE
ECA11621

In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.

Make sure that no foreign mate-rial enters the crankcase.
11. Start the engine, and then let it idle for several minutes while checking
1. Oil filter element cover
2. Oil filter element cover bolt
1. O-ring
2. Oil filter element
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2
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Tightening torque:Oil filter element cover bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Tightening torque: Engine oil drain bolt:20 Nm (2.0 m·kgf, 14 ft·lbf)
Recommended oil:
See page 8-1.
Oil quantity: Without oil filter element replace-
ment:
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)
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PERIODIC MAINTENANCE AND ADJUSTMENT
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12 it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
12. Turn the engine off, wait a few min- utes until the oil settles, and then
check the oil level and correct it if
necessary.
NOTICE
ECA11232
After changing the engine oil, make
sure to check the oil pressure as de-
scribed below.
Loosen the bleed bolt.

Start the engine and keep it
idling until oil flows out. If no oil
comes out after one minute,
turn the engine off immediately
so it will not seize. If this occurs,
have a Yamaha dealer repair the
vehicle.

After checking the oil pressure,
tighten the bleed bolt to thespecified torque.
EAU20071
CoolantThe coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU20257
To check the coolant level1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion.TIP
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.

Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to theside can result in a false reading.
2. Check the coolant level in the cool- ant reservoir.
TIPThe coolant should be between theminimum and maximum level marks.
1. Bleed boltTightening torque:Bleed bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
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3. If the coolant is at or below the
minimum level mark, remove pan-
el C (See page 6-8.), remove the
coolant reservoir cap, add coolant
to the maximum level mark, and
then install the reservoir cap and
the panel. WARNING! Remove
only the coolant reservoir cap.
Never attempt to remove the ra-
diator cap when the engine is
hot.
[EWA15162]
NOTICE: If coolant is
not available, use distilled water
or soft tap water instead. Do not
use hard water or salt water
since it is harmful to the engine.
If water has been used instead of coolant, replace it with cool-
ant as soon as possible, other-
wise the cooling system will not
be protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possible, otherwise the
effectiveness of the coolant will
be reduced.
[ECA10473]
EAU45157
To change the coolant1. Place the vehicle on a level sur- face and let the engine cool if nec-
essary.
2. Remove panels A and C. (See page 6-8.)
3. Place a container under the engine to collect the used coolant.
4. Remove the radiator cap retaining bolt and radiator cap. WARNING!
Never attempt to remove the ra-
diator cap when the engine is
hot.
[EWA10382]
5. Remove the coolant reservoir by removing the bolts.
1. Maximum level mark
2. Minimum level mark
1
2
1. Coolant reservoir capCoolant reservoir capacity (up to the
maximum level mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
1
1. Radiator cap
2. Radiator cap retaining bolt
2
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12 6. Remove the coolant reservoir cap.
7. Drain the coolant from the coolant
reservoir by turning it upside down.
8. Install the coolant reservoir by placing it in the original position, and then installing the bolts.
9. Remove the coolant drain bolt and its gasket to drain the cooling sys-
tem.
10. After the coolant is completely drained, thoroughly flush the cool-
ing system with clean tap water.
11. Install the coolant drain bolt and its new gasket, and then tighten the
bolt to the specified torque.
12. Pour the specified amount of the recommended coolant into the ra- diator and reservoir.
13. Install the coolant reservoir cap.
14. Install the radiator cap.
15. Start the engine, let it idle for sev- eral minutes, and then turn it off.
16. Remove the radiator cap to check the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the top of the radia-
tor, and then install the radiator
cap and its retaining bolt.
17. Check the coolant level in the res- ervoir. If necessary, remove the
coolant reservoir cap, add coolant
to the maximum level mark, and
then install the cap.
18. Start the engine, and then check
1. Bolt
2. Coolant reservoir
1. Coolant reservoir cap
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1
1. Coolant drain bolt
2. GasketTightening torque:
Coolant drain bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
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2
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol anti-
freeze containing corrosion inhibitors
for aluminum engines
Coolant quantity: Radiator (including all routes):0.90 L (0.95 US qt, 0.79 Imp.qt)
Coolant reservoir (up to the maxi-
mum level mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
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12 with solvent, and then squeeze the
remaining solvent out.
WARNING!
Use only a dedicated parts
cleaning solvent. To avoid the
risk of fire or explosion, do not
use gasoline or solvents with a
low flash point.
[EWA10432]
NOTICE:
To avoid damaging the foam
material, handle it gently and
carefully, and do not twist or
wring it.
[ECA10512]
5. Apply oil of the recommended type to the entire surface of the sponge
material, and then squeeze the ex-
cess oil out.TIPThe sponge material should be wet butnot dripping.
6. Pull the sponge material over the air filter element frame.
7. Insert the air filter element into the air filter case. NOTICE: Make sure
that the air filter element is prop-
erly seated in the air filter case.
The engine should never be op- erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
[ECA10482]
8. Place the holding clip in the origi-
nal position.
9. Close the air filter case cover, and then install the screw.
10. Install the panel.
To clean the air filter check hose 1. Check the hose at the bottom of the air filter case for accumulated
dirt or water.
2. If dirt or water is visible, remove the hose, clean it, and then install
it.
1. Sponge material
2. Air filter element frame
1
2
Recommended oil: Yamaha foam air filter oil or other
quality foam air filter oil
1. Air filter check hose
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EAU45323
Adjusting the engine idling
speedThe engine idling speed must be
checked and, if necessary, adjusted as
follows.TIPA digital tachometer is needed to makethis adjustment. 1. Position the digital tachometer at the ignition coil, which is located in
the spark plug cap.
2. Check the engine idling speed and, if necessary, adjust it to spec-
ification by turning the idle adjust-
ing screw. To increase the engine
idling speed, turn the screw in di-
rection (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
TIPIf the specified idling speed cannot be
obtained as described above, have aYamaha dealer make the adjustment.
EAU21385
Checking the throttle grip free
playThe throttle grip free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
inner edge of the throttle grip. Periodi-
cally check the throttle grip free play
and, if necessary, have a Yamaha
dealer adjust it.
1. Idle adjusting screwEngine idling speed:1450–1650 r/min
1
(b)
(a)
1. Throttle grip free play
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EAU21402
Valve clearanceThe 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.
EAU61772
TiresTires are the only contact between the
vehicle and the road. Safety in all con-
ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci-
fied tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA10504
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of
control.
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.WARNING
EWA10512
Never overload your vehicle. Opera-
tion of an overloaded vehicle couldcause an accident.Tire air pressure (measured on cold
tires):
Up to 90 kg (198 lb) load:Front:125 kPa (1.25 kgf/cm
2, 18 psi)
Rear: 175 kPa (1.75 kgf/cm2, 25 psi)
90 kg (198 lb) to maximum load:
Front:150 kPa (1.50 kgf/cm2, 22 psi)
Rear:
200 kPa (2.00 kgf/cm2, 29 psi)
Maximum load*: 185 kg (408 lb)
* Total weight of rider, passenger, car- go and accessories
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