2005 YAMAHA YZ250F oil

SPEC
2 - 13 Roue:
Type de roue avant Roue à rayons ----
Type de roue arrière Roue à rayons ----
Taille/matériau de la jante avant 21 × 1,60/Aluminium ----
Taille/matériau de la jante arrière 19 × 1,85/Aluminium ----
Limite de voilage de la jante:
Radial ---- 2,0 mm (0,08 in)
Latéral ---- 2,0 mm (0,08 in)
Chaîne de transmission:
Type/fabricant DID520DMA2 SDH/DAIDO ----
Nombre de maillons 111 + attache ----
Jeu de la chaîne 48 à 58 mm (1,9 à 2,3 in) ----
Longueur de la chaîne (15 maillons) ---- 242,9 mm
(9,563 in)
Frein à disque avant:
Diamètre extérieur du disque × Epais-
seur250 × 3,0 mm (9,84 × 0,12 in) 250 × 2,5 mm
(9,84 × 0,10 in)
Epaisseur de plaquette 4,4 mm (0,17 in) 1,0 mm (0,04 in)
Diamètre intérieur du maître cylindre 11,0 mm (0,433 in) ----
Diamètre intérieur du cylindre d’étrier 27,0 mm (1,063 in) × 2 ----
Type de liquide de frein DOT N°4 ----
Frein à disque arrière:
Diamètre extérieur du disque × Epais-
seur245 × 4,0 mm (9,65 × 0,16 in) 245 × 3,5 mm
(9,65 × 0,14 in)
Limite de déflexion ---- 0,15 mm (0,006 in)
Epaisseur de plaquette 6,4 mm (0,25 in) 1,0 mm (0,04 in)
Diamètre intérieur du maître cylindre 11,0 mm (0,433 in) ----
Diamètre intérieur du cylindre d’étrier 25,4 mm (1,000 in) × 1 ----
Type de liquide de frein DOT N°4 ----
Levier et pédale de frein:
Position du levier de frein 95 mm (3,74 in) ----
Hauteur de la pédale de frein
(distance verticale au-dessus du som-
met du repose-pied)5 mm (0,20 in) ----
Garde du levier d’embrayage (à l’extré-
mité du levier)8 à 13 mm (0,31 à 0,51 in) ----
Jeu de la poignée des gaz 3 à 5 mm (0,12 à 0,20 in) ---- Elément Standard Limite
CARACTERISTIQUES D’ENTRETIEN

2 - 18
SPECCABLE ROUTING DIAGRAM
EC240000
CABLE ROUTING DIAGRAM
1Fuel tank breather hose
2Clutch cable
3Oil tank breather hose
4Hot starter cable
5Cylinder head breather hose
6Cable guide
7Hose guide
8Brake hose
9Engine stop switch lead
0Clamp
ASub-wire harness
BThrottle position sensor lead
CNeutral switch lead
DOil hose
ECDI magneto lead
FRadiator breather hose
GCarburetor breather hose
HCarburetor overflow hoseÈInsert the end of the fuel tank
breather hose into the hole in
the steering stem cap.
ÉPass the hot starter cable
between the cylinder head
breather hose, oil tank breather
hose and ignition coil, then on
the outside of the left engine
bracket.
ÊPass the clutch cable through
the cable guides.
ËPass the clutch cable in front of
the radiator mounting boss.
ÌFasten the neutral switch lead
and CDI magneto lead to the
cable guide with a plastic locking
tie and cut off the tie end.ÍFasten the engine stop switch
lead, neutral switch lead and
CDI magneto lead.
ÎFasten the engine stop switch
lead and sub-wire harness at the
protecting tube for the engine
stop switch lead.
ÏFasten the sub-wire harness
and hot starter cable at the white
tape for the sub-wire harness.
ÐFasten the sub-wire harness.
ÑPass the sub-wire harness
between the engine brackets.
B
E
C
9
B
C
C
9
0
0
A
0
0
0
0
B 0 Ì
Í
Î
Ï
Ð
Ð
Ñ
Ò
Ó
C
D
0 0 0E F
Ô Õ Ö ×
1
2
3
4
5 6 6 8
7
Ê
Ê ËÈ
É
AGG
H
Ø
D
F
C

2 - 19
SPECCABLE ROUTING DIAGRAM
ÒMake sure that the throttle
position sensor coupler does
not go out side the chassis.
ÓFasten the throttle position
sensor lead.
ÔFasten the neutral switch lead
on the oil hose with a plastic
locking tie and cut off the tie
end.
ÕFasten the neutral switch lead.
ÖFasten the neutral switch lead,
CDI magneto lead and radiator
breather hose.
×Pass the neutral switch lead,
CDI magneto lead and radiator
breather hose between the
radiator and frame.ØPass the carburetor breather
hoses and overflow hose so
that all there hoses do not con-
tact the rear shock absorber.
B
E
C
9
B
C
C
9
0
0
A
0
0
0
0
B 0 Ì
Í
Î
Ï
Ð
Ð
Ñ
Ò
Ó
C
D
0 0 0E F
Ô Õ Ö ×
1
2
3
4
5 6 6 8
7
Ê
Ê ËÈ
É
AGG
H
Ø
D
F
C

2 - 20
SPEC
1CDI unit
2Hot starter cable
3Throttle cable (pull)
4Throttle cable (return)
5Cable guide
6Ignition coil
7Radiator hose 2
8Radiator breather hose
9Radiator hose 4
0CDI unit bracket
ACDI unit bandÈPass the hot starter cable and
throttle cables through the
cable guides.
ÉPass the hot starter cable and
throttle cables between the
radiator and frame, then over
the radiator mounting boss.
ÊPass the throttle cables on the
outside of the ignition coil.
ËPass the radiator breather
hose in front of the radiator
hose 2, on the left of the chas-
sis, and then between the
frame and radiator hose 4.
ÌInsert the CDI unit band over
the CDI unit bracket as far as
possible.ÍFirst install the CDI unit and
CDI unit band to the CDI unit
bracket, then the CDI unit
bracket to the frame.
A10
ÍÌ
B7
8
9Ë
A
2
3
4
5
È 1
É
Ê
6
A
B
CABLE ROUTING DIAGRAM

3 - 1
INSP
ADJ
MAINTENANCE INTERVALS
EC300000
REGULAR INSPECTION AND ADJUSTMENTS
MAINTENANCE INTERVALS
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 re-
quiredRemarks
ENGINE OIL
Replace
Inspect
OIL FILTER ELEMENT, OIL STRAINER
Clean
VALVES
The engine must be cold.
Check the valve seats
and valve stems for wear. Check the valve clearances
Inspect
Replace
VALVE SPRINGS
Check the free length and
the tilt. Inspect
Replace
VALVE LIFTERS
Check for scratches and
wear. Inspect
Replace
CAMSHAFTS Inspect the camshaft sur-
face.
Inspect the decompres-
sion system. Inspect
Replace
TIMING CHAIN SPROCKETS, TIMING
CHAIN
Check for wear on the
teeth and for damage. Inspect
Replace
PISTON
Inspect
Inspect crack
Inspect carbon deposits
and eliminate them. Clean
Replace
PISTON RING
InspectCheck ring end gap
Replace
PISTON PIN
Inspect
Replace
CYLINDER HEAD Inspect carbon deposits
and eliminate them.
Change gasket Inspect and clean
CYLINDER
Inspect and clean
Inspect score marks
Inspect wear
Replace
CLUTCH
Inspect housing, friction
plate, clutch plate and
spring Inspect and adjust
Replace
TRANSMISSION
Inspect
Replace bearing

3 - 2
INSP
ADJ
MAINTENANCE INTERVALS
SHIFT FORK, SHIFT CAM, GUIDE BAR
InspectInspect wear
ROTOR NUT
Retighten
EXHAUST PIPE, SILENCER, PRO-
TECTOR
Inspect and retighten
Clean
Replace * Whichever comes first
CRANK
Inspect and clean
CARBURETOR
Inspect, adjust and clean
SPARK PLUG
Inspect and clean
Replace
DRIVE CHAIN
Use 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 coolant Every 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 (frame)
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 year
FRONT FORKS
Inspect and adjust
Replace oil Suspension oil “S1”
Replace oil sealItemAfter
break-inEvery
race
Every
third
(or
500 km)Every
fifth
(or
1,000 km)As re-
quiredRemarks


3

3 - 3
INSP
ADJ
MAINTENANCE INTERVALS
FRONT FORK OIL SEAL AND DUST
SEAL
Clean and lube Lithium base grease
PROTECTOR GUIDE
Replace
REAR SHOCK ABSORBER
(After
rain ride)
Inspect and adjust
Lube
Molybdenum disulfide
grease
Retighten
DRIVE CHAIN GUIDE AND ROLLERS
Inspect
SWINGARM
Molybdenum disulfide
grease
Inspect, lube and retighten
RELAY ARM, CONNECTING ROD
Molybdenum disulfide
grease
Inspect, lube and retighten
STEERING HEAD
Inspect free play and retighten
Clean and lube Lithium base grease
Replace bearing
TIRE, WHEELS
Inspect air pressure, wheel run-out,
tire wear and spoke looseness
Retighten sprocket bolt
Inspect bearings
Replace bearings
Lubricate Lithium base grease
THROTTLE, CONTROL CABLE Yamaha cable lube or
SAE 10W-30 motor oil
Inspect dirt and wear on
the throttle cable on the
carburetor side. Check routing and connection
Lubricate
Inspect and clean (throttle cable)
HOT STARTER, CLUTCH LEVER
Inspect free playItemAfter
break-inEvery
race
Every
third
(or
500 km)Every
fifth
(or
1,000 km)As re-
quiredRemarks

INSP
ADJ
FREINS
Régler la position du levier et la hauteur
de la pédale
Graisser le point de pivot
Contrôler la surface du disque de frein
Contrôler le niveau de liquide et
l’absence de fuites
Resserrer les boulons du disque de frein,
de l’étrier, du maître-cylindre et les bou-
lons-raccords
Remplacer les plaquettes
Changer le liquide de frein Une fois par an
FOURCHES
Contrôler et régler
Remplacer l’huile Huile 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
(Après utilisa-
tion par temps
de pluie)
Contrôler et régler
Lubrifier
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
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 ten-
sion des rayons
Resserrer le boulon du pignon
Contrôler les roulements
Remplacer les roulements
Lubrifier Graisse à base de lithium
ACCELERATEUR, CABLE DE COM-
MANDELubrifiant pour câbles
Yamaha ou huile moteur
SAE 10W-30
Contrôler la propreté et
l’usure du câble des gaz du
côté carburateur. Contrôler le cheminement et le raccorde-
ment
Lubrifier
Contrôler et nettoyer (câble des gaz)
LEVIER DE DEMARRAGE A CHAUD,
LEVIER D’EMBRAYAGE
Contrôler le jeuElémentAprès
rodageA cha-
que
course
Toutes les
trois cour-
ses
(ou 500 km)Toutes les
cinq courses
(ou
1.000 km)Selon
les be-
soinsRemarques
PROGRAMME D’ENTRETIEN
3 - 3