2007 YAMAHA WR 250F oil

2 - 101
SPECCABLE ROUTING DIAGRAM
EC240000
CABLE ROUTING DIAGRAM
1Fuel tank breather hose
2Clamp
3Diode
4Hot starter cable
5Wire harness
6Hump (frame)
7Cylinder head breather hose
8Throttle position sensor lead
9Neutral switch lead
0Oil hose
AClutch cable
BStarter motor lead
CCable guideDNegative battery lead
EAC magneto lead
FBrake hose
GRectifier/regulator lead
HCarburetor breather hose
ICarburetor overflow hose
JCatch tank breather hose

2 - 103
SPECCABLE ROUTING DIAGRAM
ÈInsert the end of the fuel tank breather hose into the hole in the
steering stem.
ÉFasten the throttle cable, hot starter cable and rectifier/regula-
tor lead onto the frame. Locate the clamp end facing the lower
side of the hot starter cable and cut off the tie end.
ÊFasten the diode (at the marking), throttle cable and hot starter
cable onto the frame. Locate the clamp end facing toward the
lower right of the frame and with the tie end facing downward.
ËFasten the wire harness, throttle position sensor lead, starter
motor lead and negative battery lead onto the frame. Pass the
clamp through the hole in the stay (air cut-off valve). Locate the
clamp end facing toward the lower side of the frame and cut off
the tie end.ÌFasten the throttle position sensor lead onto the frame. Locate
the clamp end facing toward the lower side of the frame and
cut off the tie end.
ÍPass the carburetor breather hoses, carburetor overflow hose
and catch tank breather hose between the connecting rod and
cross tube (frame).
ÎFasten the neutral switch lead and oil hose together with the
plastic locking ties and cut off the tie ends.
ÏFasten the neutral switch lead and AC magneto lead onto the
frame. Locate the clamp end facing toward the outside of the
frame and tie end facing toward the rear of the frame.

2 - 107
SPECCABLE ROUTING DIAGRAM
1Throttle cable (pull)
2Throttle cable (return)
3Catch tank hose
4Ignition coil
5Clamp
6Air induction hose (air cut-off valve - rear of cylinder head)
7Catch tank breather hoseÈCross the pull and push throttle cables.
ÉFasten the catch tank hose and air induction hose (air cut-off
valve - rear of cylinder head) onto the frame. Locate the clamp
end facing toward the lower side of the frame and cut off the tie
end.
ÊFasten the catch tank breather hose and carburetor breather
hoses together.
ËPass the carburetor breather hose (of the throttle cable cover)
through the hose holder.

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 - 2
INSP
ADJ
MAINTENANCE INTERVALS
ROTOR NUT
Retighten
MUFFLER
Inspect and retighten
Clean
Replace
CRANK
Inspect and clean
CARBURETOR
Inspect, adjust and clean
AIR INDUCTION SYSTEM
Inspect and clean
SPARK PLUG
Inspect and clean
Replace
DRIVE CHAINUse chain lube
Chain slack:
48 ~ 58 mm (1.9 ~ 2.3 in) Lubricate, slack, alignment
Replace
COOLING SYSTEM
Check coolant level and leakage
Check radiator cap operation
Replace coolantEvery two years
Inspect hoses
OUTSIDE NUTS AND BOLTS Refer to “STARTING AND
BREAK-IN” section in the
CHAPTER 1. Retighten
AIR FILTER
Clean and lubricate Use foam air-filter oil or
equivalent oil
Replace
OIL FILTER
Replace
OIL STRAINER
Clean
FRAME
Clean and inspect
FUEL TANK, COCK
Clean and inspect
BRAKES
Adjust lever position and pedal height
Lubricate pivot point
Check brake disc surface
Check fluid level and leakage
Retighten brake disc bolts, caliper bolts,
master cylinder bolts and union bolts
Replace pads
Replace brake fluid Every one yearItemAfter
break-inEvery
race
Every third
(or
500 km)Every fifth
(or
1,000 km)As
requiredRemarks
1
2
3
4
5
6
7

3 - 3
INSP
ADJ
MAINTENANCE INTERVALS
FRONT FORKS
Inspect and adjust
Replace oilSuspension oil “S1”
Replace oil seal
FRONT FORK OIL SEAL AND DUST SEAL
Clean and lubeLithium base grease
PROTECTOR GUIDE
Replace
REAR SHOCK ABSORBER
Inspect and adjust
Lube(After
rain
ride)Molybdenum disulfide
grease
Retighten
DRIVE CHAIN GUIDE AND ROLLERS
Inspect
SWINGARMMolybdenum disulfide
grease
Inspect, lube and retighten
RELAY ARM, CONNECTING ROD Molybdenum disulfide
grease
Inspect, lube and retighten
SIDESTAND
LubricateLithium base grease
STEERING HEAD
Inspect free play and retighten
Clean and lubeLithium base grease
Replace bearing
TIRE, WHEELS
Inspect air pressure, wheel run-out, tire
wear and spoke looseness
Retighten sprocket bolt
Inspect bearings
Replace bearings
LubricateLithium base grease
THROTTLE, CONTROL CABLE Yamaha cable lube or SAE
10W-30 motor oil
Check routing and connection
Lubricate
HOT STARTER, CLUTCH LEVER
Inspect free play
BATTERY
Check terminal for looseness and
corrosionItemAfter
break-inEvery
race
Every third
(or
500 km)Every fifth
(or
1,000 km)As
requiredRemarks

3 - 6
INSP
ADJ
FOURCHES
Contrôler et régler
Remplacer l’huileHuile de fourche “S1”
Remplacer la bague d’étanchéité
BAGUE D’ETANCHEITE ET JOINT
ANTIPOUSSIERE DE FOURCHE
Nettoyer et lubrifier Graisse à base de lithium
GUIDE DE PROTECTION
Remplacer
AMORTISSEUR ARRIERE
Contrôler et régler
Lubrifier(Après
utilisa-
tion par
temps de
pluie)Graisse au bisulfure de
molybdène
Resserrer
PATIN ET ROULEAUX DE CHAINE DE
TRANSMISSION
Contrôler
BRAS OSCILLANT Graisse au bisulfure de
molybdène
Contrôler, lubrifier et resserrer
BRAS RELAIS, BIELLE Graisse au bisulfure de
molybdène
Contrôler, lubrifier et resserrer
BEQUILLE LATERALE
LubrifierGraisse à base de lithium
TETE DE FOURCHE
Contrôler le jeu et resserrer
Nettoyer et lubrifier Graisse à base de lithium
Remplacer le roulement
PNEUS, ROUES
Contrôler la pression de gonflage, le voile
de roue, l’usure des pneus et la tension des
rayons
Resserrer le boulon du pignon
Contrôler les roulements
Remplacer les roulements
LubrifierGraisse à base de lithium
ACCELERATEUR, CABLE DE
COMMANDELubrifiant pour câbles Yamaha
ou huile moteur SAE 10W-30
Contrôler le cheminement et le
raccordement
Lubrifier
LEVIER DE DEMARRAGE A CHAUD,
LEVIER D’EMBRAYAGE
Contrôler le jeu
BATTERIE
Contrôler la fixation de la borne et l’absence
de corrosionElément
Après
rodageA chaque
courseToutes les
trois
courses
(ou
500 km)Toutes les
cinq
courses
(ou
1.000 km)Selon les
besoinsRemarques
PROGRAMME D’ENTRETIEN

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