GENERAL SPECIFICATIONS
2 - 1
SPEC
EC200000
SPECIFICATIONS
EC211000
GENERAL SPECIFICATIONS
Model name: WR250FW (USA, CDN, AUS, NZ)
WR250F (EUROPE, ZA)
Model code number: 5UME (USA)
5UMF (EUROPE)
5UMG (CDN, AUS, NZ, ZA)
Dimensions: USA, ZA, CDN EUROPE, AUS, NZ
Overall length 2,165 mm (85.24 in) 2,180 mm (85.83 in)
Overall width 825 mm (32.48 in)←
Overall height 1,300 mm (51.18 in) 1,305 mm (51.38 in)
Seat height 980 mm (38.58 in) 990 mm (38.98 in)
Wheelbase 1,480 mm (58.27 in)←
Minimum ground clearance 365 mm (14.37 in) 370 mm (14.57 in)
Dry weight:
Without oil and fuel 106.0 kg (233.7 lb)
Engine:
Engine type Liquid cooled 4-stroke, DOHC
Cylinder arrangement Single cylinder, forward inclined
Displacement 249 cm
3 (8.76 Imp oz, 8.42 US oz)
Bore × stroke 77.0 × 53.6 mm (3.03 × 2.11 in)
Compression ratio 12.5 : 1
Kick and electric starter
Starting system
Lubrication system: Dry sump
Oil type or grade:
Engine oil (For USA and CDN)
Yamalube 4, SAE10W30 or SAE20W40
Yamalube 4-R, SAE10W50
API service SG type or higher,
JASO standard MA
(Except for USA and CDN)
SAE10W30, SAE10W40, SAE15W40,
SAE20W40 or SAE20W50
API service SG type or higher,
JASO standard MA
-20 -10 0 10 20 30 40 50
˚C 0 10 30 50 70 90 110 130
˚F
YAMALUBE 4(10W-30) or SAE 10W-30
YAMALUBE 4(20W-40) or SAE 20W-40
YAMALUBE 4-R(10W-50) or SAE 10W-50
-20 -10 0 10 20 30 40 50
˚C
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40
SAE 20W-50
2
GENERAL SPECIFICATIONS
2 - 2
SPEC
Oil capacity:
Engine oil
Periodic oil change 1.1 L (0.97 Imp qt, 1.16 US qt)
With oil filter replacement 1.2 L (1.06 Imp qt, 1.27 US qt)
Total amount 1.4 L (1.23 Imp qt, 1.48 US qt)
Coolant capacity (including all routes): 0.99 L (0.87 Imp qt, 1.05 US qt)
Air filter: Wet type element
Fuel:
Type Premium unleaded gasoline only with a
research octane number of 95 or higher.
Tank capacity 8.0 L (1.76 Imp gal, 2.11 US gal)
Reserve 1.1 L (0.24 Imp gal, 0.29 US gal)
Carburetor:
Type FCR-MX37
Manufacturer KEIHIN
Spark plug:
Type/manufacturer CR9E/NGK (resistance type)
Gap 0.7 ~ 0.8 mm (0.028 ~ 0.031 in)
Clutch type: Wet, multiple-disc
Transmission:
Primary reduction system Gear
Primary reduction ratio 57/17 (3.353)
Secondary reduction system Chain drive
Secondary reduction ratio 50/13 (3.846)
Transmission type Constant mesh, 5-speed
Operation Left foot operation
Gear ratio: 1st 31/13 (2.385)
2nd 28/16 (1.750)
3rd 23/17 (1.353)
4th 23/21 (1.095)
5th 17/19 (0.895)
Chassis: USA, ZA, CDN EUROPE, AUS, NZ
Frame type Semi double cradle←
Caster angle 27.0°26.6°
Trail 115 mm (4.53 in) 114 mm (4.49 in)
Tire:
Type With tube
Size (front) 80/100-21 51M (For USA, CDN and ZA)
90/90-21 54R (For EUROPE, AUS and NZ)
Size (rear) 100/100-18 59M (For USA, CDN and ZA)
130/90-18 69R (For EUROPE, AUS and NZ)
Tire pressure (front and rear) 100 kPa (1.0 kgf/cm
2, 15 psi)
1
2
3
4
5
6
7
3 - 1
INSP
ADJ
MAINTENANCE INTERVALS
EC300000
REGULAR INSPECTION AND ADJUSTMENTS
MAINTENANCE INTERVALS
NOTE:The following schedule is intended as a general guide to maintenance and lubrication. Bear in mind that such factors as
weather, terrain, geographical location, and individual usage will alter the required maintenance and lubrication intervals. If
you are a doubt as to what intervals to follow in maintaining and lubricating your machine, consult your Yamaha dealer.
ItemAfter
break-inEvery
race
Every third
(or
500 km)Every fifth
(or
1,000 km)As
requiredRemarks
ENGINE OIL
Replace
VALVES
Check the valve clearances The engine must be cold.
Check the valve seats and
valve stems for wear. Inspect
Replace
VALVE SPRINGS
InspectCheck the free length and
the tilt.
Replace
VALVE LIFTERS
InspectCheck for scratches and
wear.
Replace
CAMSHAFTSInspect the camshaft
surface.
Inspect the decompression
system. Inspect
Replace
CAMSHAFT SPROCKETS
InspectCheck for wear on the teeth
and for damage.
Replace
PISTON
InspectInspect crack
Inspect carbon deposits and
eliminate them. Clean
Replace
PISTON RING
InspectCheck ring end gap
Replace
PISTON PIN
Inspect
Replace
CYLINDER HEADInspect carbon deposits and
eliminate them.
Change gasket Inspect and clean
CYLINDER
Inspect and clean Inspect score marks
Inspect wear
Replace
CLUTCH
Inspect and adjust Inspect housing, friction
plate, clutch plate and spring
Replace
TRANSMISSION
Inspect
Replace bearing
SHIFT FORK, SHIFT CAM, GUIDE BAR
InspectInspect wear
3 - 16
INSP
ADJ
PRE-OPERATION INSPECTION AND MAINTENANCE
EC320000
PRE-OPERATION INSPECTION AND MAINTENANCE
Before riding for break-in operation, practice, make sure the machine is in good operating condition.
Before using this machine, check the following points.
GENERAL INSPECTION AND MAINTENANCE
Item Routine Page
CoolantCheck that coolant is filled up to the radiator cap.
Check the cooling system for leakage.P.3-35 ~ 41
FuelCheck that a fresh gasoline is filled in the fuel tank. Check the
fuel line for leakage.P.1-49
Engine oilCheck that the oil level is correct. Check the crankcase and
frame oil line for leakage.P.3-51 ~ 59
Gear shifter and clutchCheck that gears can be shifted correctly in order and that the
clutch operates smoothly.P.3-41 ~ 43
Throttle grip/HousingCheck that the throttle grip operation and free play are correctly
adjusted. Lubricate the throttle grip and housing, if necessary.P.3-43 ~ 45
Brakes Check the play of front brake and effect of front and rear brake. P.3-77 ~ 89
Drive chainCheck drive chain slack and alignment. Check that the drive
chain is lubricated properly.P.3-91 ~ 95
WheelsCheck for excessive wear and tire pressure. Check for loose
spokes and have no excessive play.P.3-111 ~ 113
SteeringCheck that the handlebar can be turned smoothly and have no
excessive play.P.3-113 ~ 117
Front forks and rear shock
absorberCheck that they operate smoothly and there is no oil leakage. P.3-97 ~ 109
Cables (wires)Check that the clutch and throttle cables move smoothly. Check
that they are not caught when the handlebars are turned or when
the front forks travel up and down.—
Exhaust pipeCheck that the exhaust pipe is tightly mounted and has no
cracks.P.3-27 ~ 31
Rear wheel sprocket Check that the rear wheel sprocket tightening bolt is not loose. P.3-89
Lubrication Check for smooth operation. Lubricate if necessary. P.3-119
Bolts and nuts Check the chassis and engine for loose bolts and nuts. P.1-59
Lead connectorsCheck that the AC magneto, CDI unit, and ignition coil are
connected tightly.P.1-9
SettingsIs the machine set suitably for the condition of the course and
weather or by taking into account the results of test runs before
riding? Are inspection and maintenance completely done?P.4-1 ~ 40
3 - 37
INSP
ADJ
8. Fill:
Radiator
Engine
To specified level.
CAUTION:
Do not mix more than one type
of ethylene glycol antifreeze
containing corrosion inhibitors
for aluminum engine.
Do not use water containing
impurities or oil.
9. Install:
Radiator cap
Start the engine and warm it
up for a several minutes.
10. Check:
Coolant level
Coolant level low
→ Add cool-
ant.
Recommended coolant:
High quality ethylene
glycol anti-freeze con-
taining anti-corrosion
for aluminum engine
Coolant 1 and water
(soft water) 2 mixing
ratio:
50%/50%
Coolant capacity:
0.99 L
(0.87 Imp qt,
1.05 US qt)
Handling notes of coolant:
The coolant is harmful so it should
be handled with special care.
WARNING
When coolant splashes to
your eye.
Thoroughly wash your eye
with water and see your doc-
tor.
When coolant splashes to
your clothes.
Quickly wash it away with
water and then with soap.
When coolant is swallowed.
Quickly make him vomit and
take him to a doctor.
8. Remplir:
Radiateur
Moteur
Au niveau spécifié.
ATTENTION:
Ne pas mélanger différents types
d’antigel à l’éthylène glycol conte-
nant un agent anticorrosion pour
moteurs en aluminium.
Ne pas utiliser de l’eau contenant
des impuretés ou de l’huile.
9. Monter:
Bouchon du radiateur
Mettre le moteur en marche et le
laisser chauffer pendant quelques
minutes.
10. Contrôler:
Niveau du liquide de refroidisse-
ment
Niveau du liquide de refroidisse-
ment bas → Ajouter du liquide de
refroidissement.
Liquide de refroidissement
recommandé:
Antigel à l’éthylène gly-
col de haute qualité con-
tenant un agent anticor-
rosion pour moteurs en
aluminium
Rapport de mélange liquide
de refroidissement 1 et
eau (eau douce) 2:
50%/50%
Quantité de liquide de
refroidissement:
0,99 L
(0,87 Imp qt, 1,05 US qt)
Notes concernant la manipulation
du liquide de refroidissement:
Le liquide de refroidissement étant
dangereux, il doit être manipulé avec
une attention particulière.
AVERTISSEMENT
En cas de projection de liquide
de refroidissement dans les yeux:
rincer soigneusement les yeux à
l’eau et consulter un médecin.
En cas de projection de liquide
de refroidissement sur les vête-
ments:
rincer rapidement à l’eau claire
puis laver à l’eau savonneuse.
En cas d’ingestion de liquide de
refroidissement:
faire immédiatement vomir et
consulter un médecin dans les
plus brefs délais.
ENGINE
MOTEUR
3 - 49
INSP
ADJ
5. Inspect:
Air filter element
Damage
→ Replace.
6. Apply:
Foam-air-filter oil or equivalent
oil to the element
NOTE:Squeeze out the excess oil. Ele-
ment should be wet but not drip-
ping.
Wipe off the oil left on the element
surface using a clean dry cloth.
(Excess oil in the element may
adversely affect engine starting.)
7. Install:
Filter guide
1
NOTE:Align the projection
a on filter
guide with the hole
b in air filter
element.
Apply the lithium soap base grease
on the matching surface
c on air
filter element.
8. Install:
Air filter element
1
NOTE:Align the projection
a on filter guide
with the hole
b in air filter case.
9. Hook:
Binder
1
NOTE:Hook the binder
1 so that it contacts
the filter guide projections
a.
5. Contrôler:
Elément de filtre à air
Endommagement → Remplacer.
6. Appliquer:
Huile pour filtre à air mousse ou
huile équivalente sur l’élément
N.B.:
Comprimer pour éliminer l’excès
d’huile. L’élément doit être humide
mais sans excès.
A l’aide d’un chiffon doux et sec,
essuyer l’huile résiduelle sur la surface
de l’élément. (Un excès d’huile dans
l’élément peut rendre le démarrage du
moteur plus difficile.)
7. Monter:
Guide du filtre 1
N.B.:
Aligner la saillie a du guide du filtre
et le trou b de l’élément de filtre à air.
Appliquer de la graisse à savon de
lithium sur la surface de contact c de
l’élément de filtre à air.
8. Monter:
Elément de filtre à air 1
N.B.:
Aligner la saillie a du guide du filtre et
le trou b du boîtier de filtre à air.
9. Accrocher:
Fixation 1
N.B.:
Accrocher la fixation 1 de manière
qu’elle soit en contact avec les saillies du
guide du filtre a.
ENGINE
MOTEUR
3 - 51
INSP
ADJ
ENGINE OIL LEVEL INSPECTION
1. Start the engine, warm it up for
several minutes, and then turn
off the engine and wait for five
minutes.
2. Place the machine on a level
place and hold it up on upright
position by placing the suitable
stand under the engine.
3. Inspect:
Oil level
Oil should be up to the full
level in the check window
1.
Level check window is not full.
→ Add 0.2 L (0.18 Imp qt, 0.21
US qt) of oil.
1
1
(For USA and CDN)
CAUTION:
Do not add any chemical addi-
tives. Engine oil also lubricates
the clutch and additives could
cause clutch slippage.
Do not allow foreign material to
enter the crankcase.
Recommended oil:
Yamalube 4,
SAE10W30 or
SAE 20W40
Yamalube 4-R,
SAE10W50
API service SG type or
higher, JASO standard
MA
-20 -10 0 10 20 30 40 50
˚C 0 10 30 50 70 90 110 130
˚F
YAMALUBE 4(10W-30) or SAE 10W-30
YAMALUBE 4(20W-40) or SAE 20W-40
YAMALUBE 4-R(10W-50) or SAE 10W-50
CONTROLE DU NIVEAU D’HUILE
MOTEUR
1. Mettre le moteur en marche, le faire
chauffer pendant quelques minutes
puis le couper et attendre cinq
minutes.
2. Placer la moto sur un sol plan et la
maintenir à la verticale en plaçant
un support adéquat sous le moteur.
3. Contrôler:
Niveau d’huile
Le niveau d’huile doit correspon-
dre au niveau maximal du hublot
de contrôle 1.
Le niveau d’huile du hublot de
contrôle n’est pas au maximum.
→ Ajouter 0,2 L (0,18 Imp qt,
0,21 US qt) d’huile.
(USA et CDN)
ATTENTION:
Ne pas ajouter d’additifs chimiques.
L’huile moteur lubrifie également
l’embrayage et les additifs pour-
raient provoquer un patinage de
l’embrayage.
Veiller à empêcher toute pénétra-
tion de corps étrangers dans le car-
ter moteur.
Huile recommandée:
Yamalube 4, SAE10W30
ou SAE20W40
Yamalube 4-R,
SAE10W50
API Service de type SG
et au-delà/JASO MA
ENGINE
MOTEUR
3 - 53
INSP
ADJ
(Except for USA and CDN)
CAUTION:
Do not add any chemical addi-
tives or use oils with a grade of
CD a or higher.
Do not use oils labeled
“ENERGY CONSERVING II” b
or higher. Engine oil also lubri-
cates the clutch and additives
could cause clutch slippage.
Do not allow foreign materials to
enter the crankcase.
4. Install:
Oil tank cap
5. Start the engine and let it warm
up for several minutes.
6. Turn off the engine and inspect
the oil level once again.
NOTE:Wait a few minutes until the oil set-
tles before inspecting the oil level.
Recommended oil:
SAE10W30,
SAE10W40,
SAE15W40,
SAE20W40 or
SAE20W50
API service SG type or
higher, JASO standard
MA
-20 -10 0 10 20 30 40 50
˚C
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40
SAE 20W-50
a
b
ENGINE OIL REPLACEMENT
1. Start the engine and warm it up
for several minutes, and then
turn off the engine and wait for
five minute.
2. Place the machine on a level
place and hold it on upright posi-
tion by placing the suitable stand
under the engine.
3. Place a suitable container under
the engine.(sauf USA et CDN)
ATTENTION:
Ne pas ajouter d’additifs chimiques
ni utiliser d’huiles de qualité CD a
ou supérieure.
Ne pas utiliser d’huiles portant l’in-
dication “ENERGY CONSERVING
II” b ou supérieure. L’huile mo-
teur lubrifie également l’embraya-
ge et les additifs pourraient
provoquer un patinage de l’em-
brayage.
Veiller à empêcher toute pénétra-
tion de corps étrangers dans le car-
ter moteur.
4. Monter:
Bouchon du réservoir d’huile
5. Mettre le moteur en marche et le
laisser chauffer pendant quelques
minutes.
6. Couper le moteur et vérifier à nou-
veau le niveau d’huile.
N.B.:
Attendre quelques minutes que l’huile se
stabilise avant d’en contrôler le niveau.
Huile recommandée:
SAE10W30, SAE10W40,
SAE15W40, SAE20W40
ou SAE20W50
API Service de type SG
et au-delà/JASO MA
CHANGEMENT DE L’HUILE
MOTEUR
1. Mettre le moteur en marche, le faire
chauffer pendant quelques minutes
puis le couper et attendre cinq
minutes.
2. Placer la moto sur un sol plan et la
maintenir à la verticale en plaçant
un support adéquat sous le moteur.
3. Déposer un récipient adéquat sous
le moteur.
ENGINE
MOTEUR