2016 YAMAHA WR 250R cooling
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For your safety – pre-operation checks
EAU15599
Inspect your vehicle each time you use it to make sure the vehi cle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided inthis manual, have the vehicle inspected by a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel Check fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage. 3-11
Engine oil Check oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage. 6-12
Coolant Check coolant level in reservoir.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage. 6-14
Front brake Check operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check lever free play.
Adjust if necessary.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add specified brake fluid to specified level.
Check hydraulic system for leakage. 6-23, 6-25, 6-26
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Periodic maintenance and adjustment
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21 *Rear suspension
relay arm and
connecting arm
pivoting points Check operation.
22 Engine oil Change.
Check oil level and vehicle for oil
leakage.
Every 5000 km (3000 mi)
23 Engine oil filter
element
24 *Cooling system Check coolant level and vehicle
for coolant leakage.
Change coolant. Every 3 years
25 *Front and rear brake
switches Check operation.
26 Moving parts and
cables Lubricate.
27 *Throttle grip Check operation.
Check throttle grip free play, and
adjust if necessary.
Lubricate cable and grip housing.
28 *Lights, signals and
switches Check operation.
Adjust headlight beam.
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 10000 km
(6000 mi) 20000 km
(12000 mi) 30000 km
(18000 mi) 40000 km
(24000 mi)BN3-9-E0.book 6 ページ ２０１５年６月２５日 木曜日 午前１０時４６分
Page 57 of 100
Periodic maintenance and adjustment6-15
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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
1
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Periodic maintenance and adjustment
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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
1 2
1
1. Coolant drain bolt
2. GasketTightening torque:
Coolant drain bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1
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):0.65 L (0.69 US qt, 0.57 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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the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
19. Install the panels.
EAU44324
Cleaning the air filter element
and check hoseThe air filter element should be cleaned
or replaced at the intervals specified in
the periodic maintenance and lubrica-
tion chart. Clean or, if necessary, re-
place the air filter element more
frequently if you are riding in unusually
wet or dusty areas. In addition, the air
filter check hose must be frequently
checked and cleaned if necessary.
To clean the air filter element 1. Remove panel B. (See page 6-8.)
2. Open the air filter case cover by re- moving the screw and pulling the
case cover outward as shown. 3. Unhook the holding clip, and then
pull the air filter element out.
4. Remove the sponge material from the air filter element frame, clean it
1. Screw
2. Air filter case cover
1. Holding clip
2. Air filter element
2
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2
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Periodic maintenance and adjustment
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12 Engine overheating
WARNING
EWA10401
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hissingsound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
TIPIf coolant is not available, tap water can be temporarily us
ed instead, provided that it is changed to the recommended coolantas soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
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Specifications
EAU69993
Dimensions:Overall length: 2180 mm (85.8 in)
Overall width: 810 mm (31.9 in)
Overall height: 1230 mm (48.4 in)
Seat height:
930 mm (36.6 in)
Wheelbase: 1420 mm (55.9 in)
Ground clearance: 300 mm (11.81 in)
Minimum turning radius:
2.3 m (7.55 ft)Weight:Curb weight:134 kg (295 lb)Engine:Combustion cycle:4-stroke
Cooling system: Liquid cooled
Valve train:
DOHC
Number of cylinders: Single cylinder
Displacement: 250 cm
3
Bore stroke:
77.0 53.6 mm (3.03 2.11 in)
Compression ratio: 11.8 : 1 Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Recommended brand:YAMALUBE
SAE viscosity grades:
10W-40
Recommended engine oil grade: API service SG type or higher, JASO stan-
dard MA
Engine oil quantity: Oil change:
1.30 L (1.37 US qt, 1.14 Imp.qt)
With oil filter removal: 1.40 L (1.48 US qt, 1.23 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level
mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes):
0.65 L (0.69 US qt, 0.57 Imp.qt)Air filter:Air filter element:Wet elementFuel:Recommended fuel:Premium unleaded gasoline (Gasohol
[E10] acceptable)
Fuel tank capacity: 7.6 L (2.0 US gal, 1.7 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-discDrivetrain:Primary reduction ratio:
3.120 (78/25)
Final drive: Chain
Secondary reduction ratio: 3.308 (43/13)
Transmission type:
Constant mesh 6-speed
Gear ratio: 1st:
2.643 (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)
BN3-9-E0.book 1 ページ ２０１５年６月２５日 木曜日 午前１０時４６分