coolant YAMAHA WR 250R 2016 User Guide

Periodic maintenance and adjustment6-17
1
2
3
4
567
8
9
10
11
12
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
11
2
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Periodic maintenance and adjustment
6-44
1
2
3
4
56
7
8
9
10
11
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.
BN3-9-E0.book 44 ページ ２０１５年６月２５日　木曜日　午前１０時４６分

8-1
1
2
3
4
5
6
789
10
11
12
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

Specifications
8-3
1
2
3
4
5
6
789
10
11
12
License plate light: 5.0 W  1
Meter lighting:
LED
Meter lighting (fuel meter): LED
Turn signal indicator light: LED
Fuel level warning light:
LED
Coolant temperature warning light: LED
Engine trouble warning light: LEDFuse(s):Main fuse:30.0 A
Headlight fuse: 15.0 A
Signaling system fuse:
10.0 A
Ignition fuse: 7.5 A
Radiator fan motor fuse: 7.5 A
Fuel injection system fuse:
7.5 A
Backup fuse: 7.5 A
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10-1
1
2
3
4
5
6
7
8
910
11
12
IndexAAir filter element and check hose, cleaning .................................................6-17
Auxiliary light bulb, replacing ...................6-36BBattery......................................................6-33
Brake and clutch levers, checking and lubricating ..............................................6-30
Brake fluid, changing ...............................6-27
Brake fluid level, checking .......................6-26
Brake lever ...............................................3-10
Brake lever free play, adjusting................6-23
Brake light switches .................................6-25
Brake pedal ..............................................3-10
Brake pedal, checking and lubricating .....6-30CCables, checking and lubricating .............6-29
Care ...........................................................7-1
Catalytic converter ...................................3-13
Clutch lever ................................................3-9
Clutch lever free play, adjusting ...............6-22
Coolant.....................................................6-14
Coolant temperature warning light .............3-2DDimmer switch ...........................................3-9
Drive chain, cleaning and lubricating .......6-28
Drive chain slack ......................................6-27EEngine break-in ..........................................5-3
Engine idling speed..................................6-19
Engine oil and oil filter element ................6-12
Engine serial number .................................9-1
Engine stop switch .....................................3-9
Engine trouble warning light.......................3-3 EXUP system .......................................... 3-18
FFront and rear brake
pads, checking ....... 6-25
Front fork, adjusting ................................. 3-14
Front fork, bleeding.................................. 3-16
Front fork, checking ................................. 6-31
Fuel.......................................................... 3-11
Fuel consumption, tips for reducing........... 5-3
Fuel level warning light .............................. 3-2
Fuel tank cap ........................................... 3-11
Fuses, replacing ...................................... 6-34HHandlebar switches ................................... 3-8
Headlight bulb, replacing ......................... 6-35
Helmet holder .......................................... 3-14
High beam indicator light ........................... 3-2
Horn switch ................................................ 3-9IIdentification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-19
Indicator lights and warning lights ............. 3-2LLicense plate light bulb, replacing ........... 6-37MMain switch/steering lock........................... 3-1
Maintenance and lubrication, periodic ....... 6-4
Maintenance, emission control system...... 6-3
Matte color, caution ................................... 7-1
Model label ................................................ 9-2
Multi-function display ................................. 3-3NNeutral indicator light ................................. 3-2PPanels, removing and installing ................. 6-8 Parking ...................................................... 5-4
Part locations ............................................ 2-1
SSafety information ..................................... 1-1
Seat ......................................................... 3-13
Shifting ...................................................... 5-2
Shift pedal ............................................... 3-10
Shift pedal, checking ............................... 6-24
Shock absorber assembly, adjusting ...... 3-17
Sidestand ................................................ 3-19
Sidestand, checking an
d lubricating........ 6-31
Spark plug, checking ............................... 6-11
Specifications ............................................ 8-1
Starting the engine .................................... 5-1
Start switch................................................ 3-9
Steering, checking................................... 6-32
Storage...................................................... 7-3
Supporting the motorcycle ...................... 6-38
Swingarm pivots, lubricating ................... 6-31TTail/brake light ......................................... 6-36
Throttle grip and cable, checking and lubricating ............................................. 6-29
Throttle grip free play, checking .............. 6-19
Tires ........................................................ 6-20
Tool kit....................................................... 6-2
Troubleshooting ...................................... 6-42
Troubleshooting charts............................ 6-43
Turn signal indicator light .......................... 3-2
Turn signal light bulb, replacing .............. 6-37
Turn signal switch ..................................... 3-9VValve clearance....................................... 6-20
Vehicle identification number .................... 9-1
BN3-9-E0.book 1 ページ ２０１５年６月２５日　木曜日　午前１０時４６分