oil YAMAHA YZ250F 2007 Notices Demploi (in French)

SPEC
2 - 3 Transmission:
Primary reduction system Gear
Primary reduction ratio 57/17 (3.353)
Secondary reduction system Chain drive
Secondary reduction ratio 49/13 (3.769)
Transmission type Constant mesh, 5-speed
Operation Left foot operation
Gear ratio: 1st 30/14 (2.143)
2nd 28/16 (1.750)
3rd 29/20 (1.450)
4th 27/22 (1.227)
5th 25/24 (1.042)
Chassis: USA, CDN,
AUS, NZ, ZAEUROPE
(Except for F)F
Frame type Semi double
cradle← ←
Caster angle 27.0°← 27.1°
Trail 115.6 mm
(4.55 in)116.7 mm
(4.59 in)118.1 mm
(4.65 in)
Tire:
Type With tube
Size (front) 80/100-21 51M (For USA, CDN, ZA, AUS, NZ
and F)
80/100-21 51R (For EUROPE except F)
Size (rear) 100/90-19 57M (For USA, CDN, ZA, AUS, NZ
and F)
100/90-19 NHS (For EUROPE except F)
Tire pressure (front and rear) 100 kPa (1.0 kgf/cm
2, 15 psi)
Brake:
Front brake type Single disc brake
Operation Right hand operation
Rear brake type Single disc brake
Operation Right foot operation
Suspension:
Front suspension Telescopic fork
Rear suspension Swingarm (link type monocross suspension)
Shock absorber:
Front shock absorber Coil spring/oil damper
Rear shock absorber Coil spring/gas, oil damper
Wheel travel:
Front wheel travel 300 mm (11.8 in)
Rear wheel travel 307 mm (12.1 in)
Electrical:
Ignition system CDI magneto
GENERAL SPECIFICATIONS

SPEC
2 - 7 Piston pin bore inside diameter 16.002 ~ 16.013 mm
(0.6300 ~ 0.6304 in)16.043 mm
(0.6316 in)
Piston pin outside diameter 15.991 ~ 16.000 mm
(0.6296 ~ 0.6299 in)15.971 mm
(0.6288 in)
Piston rings:
Top ring:
Type Barrel ----
Dimensions (B × T) 0.90 × 2.75 mm (0.04 × 0.11 in) ----
End gap (installed) 0.15 ~ 0.25 mm
(0.006 ~ 0.010 in)0.50 mm
(0.020 in)
Side clearance (installed) 0.030 ~ 0.065 mm
(0.0012 ~ 0.0026 in)0.12 mm
(0.005 in)
2nd ring:
Type Taper ----
Dimensions (B × T) 0.80 × 2.75 mm (0.03 × 0.11 in) ----
End gap (installed) 0.30 ~ 0.45 mm
(0.012 ~ 0.018 in)0.80 mm
(0.031 in)
Side clearance 0.020 ~ 0.055 mm
(0.0008 ~ 0.0022 in)0.12 mm
(0.005 in)
Oil ring:
Dimensions (B × T) 1.50 × 2.25 mm (0.06 × 0.09 in) ----
End gap (installed) 0.10 ~ 0.40 mm
(0.004 ~ 0.016 in)----
Crankshaft:
Crank width “A”55.95 ~ 56.00 mm
(2.203 ~ 2.205 in)----
Runout limit “C”0.03 mm (0.0012 in) 0.05 mm
(0.002 in)
Big end side clearance “D”0.15 ~ 0.45 mm
(0.0059 ~ 0.0177 in)0.50 mm
(0.02 in)
Small end free play “F”0.4 ~ 1.0 mm
(0.02 ~ 0.04 in)2.0 mm
(0.08 in)
Clutch:
Friction plate thickness 2.9 ~ 3.1 mm
(0.114 ~ 0.122 in)2.7 mm
(0.106 in)
Quantity 9 ----Item Standard Limit
T
B
B
T
B
T
MAINTENANCE SPECIFICATIONS

SPEC
2 - 9 Lubrication system:
Oil filter type Paper type ----
Oil pump type Trochoid type ----
Tip clearance 0.12 mm or less
(0.0047 in or less)0.20 mm
(0.008 in)
Side clearance 0.09 ~ 0.17 mm
(0.0035 ~ 0.0067 in)0.24 mm
(0.009 in)
Housing and rotor clearance 0.03 ~ 0.10 mm
(0.0012 ~ 0.0039 in)0.17 mm
(0.0067 in)
Cooling:
Radiator core size
Width 120.2 mm (4.7 in) ----
Height 240 mm (9.4 in) ----
Thickness 22 mm (0.9 in) ----
Radiator cap opening pressure 110 kPa (1.1 kg/cm
2, 15.6 psi) ----
Radiator capacity 0.58 L (0.51 Imp qt, 0.61 US qt) ----
Water pump
Type Single-suction centrifugal pump ----Item Standard Limit
MAINTENANCE SPECIFICATIONS

SPEC
2 - 10 Part to be tightened Thread size Q’tyTightening torque
Nm m·kg ft·lb
Spark plug M10S × 1.0 1 13 1.3 9.4
Camshaft cap M6 × 1.0 10 10 1.0 7.2
Cylinder head blind plug screw M12 × 1.0 1 28 2.8 20
Cylinder head (stud bolt) M6 × 1.0 2 7 0.7 5.1
(stud bolt) M8 × 1.25 1 15 1.5 11
(bolt) M9 × 1.25 4 38 3.8 27
(nut) M6 × 1.0 2 10 1.0 7.2
Cylinder head cover M6 × 1.0 2 10 1.0 7.2
Cylinder M6 × 1.0 1 10 1.0 7.2
Balancer weight M6 × 1.0 2 10 1.0 7.2
Balancer shaft driven gear M14 × 1.0 1 50 5.0 36
Timing chain guide (intake side) M6 × 1.0 2 10 1.0 7.2
Timing chain tensioner M6 × 1.0 2 10 1.0 7.2
Timing chain tensioner cap bolt M6 × 1.0 1 7 0.7 5.1
Impeller M8 × 1.25 1 14 1.4 10
Radiator hose clamp M6 × 1.0 10 2 0.2 1.4
Coolant drain bolt M6 × 1.0 1 10 1.0 7.2
Water pump housing M6 × 1.0 4 10 1.0 7.2
Radiator M6 × 1.0 6 10 1.0 7.2
Radiator guard M6 × 1.0 2 10 1.0 7.2
Radiator pipe M6 × 1.0 1 10 1.0 7.2
Oil pump cover M4 × 0.7 1 2 0.2 1.4
Oil pump M6 × 1.0 3 10 1.0 7.2
Oil filter element drain bolt M6 × 1.0 1 10 1.0 7.2
Oil filter element cover M6 × 1.0 2 10 1.0 7.2
Oil strainer (crankcase) M6 × 1.0 2 10 1.0 7.2
Oil delivery pipe 1 (M10) M10 × 1.25 1 20 2.0 14
(M8) M8 × 1.25 2 18 1.8 13
Oil hose M6 × 1.0 2 8 0.8 5.8
Oil hose clamp—120.21.4
Oil strainer (oil tank) M6 × 1.0 1 9 0.9 6.5
Oil tank drain bolt M8 × 1.25 1 18 1.8 13
Oil tank (upper) M6 × 1.0 1 7 0.7 5.1
Oil tank and frame M6 × 1.0 3 9 0.9 6.5
Carburetor joint clamp M4 × 0.7 2 3 0.3 2.2
Air filter joint clamp M6 × 1.0 1 3 0.3 2.2
Throttle cable adjust bolt and locknut M6 × 0.75 1 4 0.4 2.9
Throttle cable (pull) M6 × 1.0 1 4 0.4 2.9
Throttle cable (return) M12 × 1.0 1 11 1.1 8.0
Throttle cable cover M5 × 0.8 2 4 0.4 2.9
Hot starter plunger M12 × 1.0 1 2 0.2 1.4
Hot starter cable adjust bolt and locknut M6 × 0.75 1 4 0.4 2.9
MAINTENANCE SPECIFICATIONS

SPEC
2 - 11
NOTE:
- marked portion shall be checked for torque tightening after break-in or before each race. Air filter case M6 × 1.0 2 8 0.8 5.8
Air filter joint and air filter case M5 × 0.8 1 4 0.4 2.9
Air filter element M6 × 1.0 1 2 0.2 1.4
Exhaust pipe M8 × 1.25 2 20 2.0 14
Exhaust pipe protector M6 × 1.0 3 10 1.0 7.2
Silencer M8 × 1.25 2 30 3.0 22
Silencer clamp M8 × 1.25 1 16 1.6 11
Crankcase M6 × 1.0 11 12 1.2 8.7
Crankcase bearing stopper M6 × 1.0 11 10 1.0 7.2
Crankcase bearing stopper (crankshaft) M6 × 1.0 4 10 1.0 7.2
Oil level check window holder M6 × 1.0 1 10 1.0 7.2
Left crankcase cover M6 × 1.0 8 10 1.0 7.2
Right crankcase cover M6 × 1.0 8 10 1.0 7.2
Clutch cover M6 × 1.0 7 10 1.0 7.2
Crankcase oil drain bolt M10 × 1.25 1 20 2.0 14
Drive chain sprocket cover M6 × 1.0 2 8 0.8 5.8
Kick shaft ratchet wheel guide M6 × 1.0 2 12 1.2 8.7
Kickstarter crank M8 × 1.25 1 33 3.3 24
Primary drive gear M18 × 1.0 1 75 7.5 54
Clutch spring M6 × 1.0 5 10 1.0 7.2
Clutch boss M16 × 1.0 1 60 6.0 43
Clutch cable locknut M8 × 1.25 1 7 0.7 5.1
Clutch cable adjust bolt and locknut M6 × 0.75 1 4 0.4 2.9
Push lever shaft M6 × 1.0 1 10 1.0 7.2
Drive sprocket M18 × 1.0 1 75 7.5 54
Drive axle oil seal stopper M6 × 1.0 2 10 1.0 7.2
Segment M8 × 1.25 1 30 3.0 22
Shift guide M6 × 1.0 2 10 1.0 7.2
Stopper lever M6 × 1.0 1 10 1.0 7.2
Shift pedal M6 × 1.0 1 12 1.2 8.7 Part to be tightened Thread size Q’tyTightening torque
Nm m·kg ft·lb
MAINTENANCE SPECIFICATIONS

SPEC
2 - 12 CHASSIS
Item Standard Limit
Steering system:
Steering bearing type Taper roller bearing ----
Front suspension:
Front fork travel 300 mm (11.8 in) ----
Fork spring free length 454 mm (17.9 in) 449 mm (17.7 in)
Spring rate, STD K = 4.2 N/mm
(0.428 kg/mm, 24.0 lb/in)----
Optional spring Yes ----
Oil capacity 527 cm
3 (18.6 Imp oz, 17.8 US oz) ----
Oil grade Suspension oil “S1”----
Inner tube outer diameter 48 mm (1.89 in) ----
Front fork top end 5 mm (0.20 in) ----
Rear suspension: USA, CDN,
AUS, NZ, ZAEUROPE
Shock absorber travel 131.5 mm
(5.18 in)← ----
Spring free length Approx. 265 mm
(10.43 in)← ----
Fitting length
One I.D. mark 257 mm
(10.12 in)252 mm
(9.92 in)----
Two I.D. marks 263 mm
(10.35 in)258 mm
(10.16 in)----
Three I.D. marks 254.5 mm
(10.02 in)249.5 mm
(9.82 in)----
One I.D. mark
245.5 ~ 263.5 mm
(9.67 ~ 10.37 in)←----
Two I.D. marks
251.5 ~ 269.5 mm
(9.90 ~ 10.61 in)←----
Three I.D. marks
243.0 ~ 261.0 mm
(9.57 ~ 10.28 in)←----
Spring rate, STD K = 48.0 N/mm
(4.90 kg/mm,
274.4 lb/in)←----
Optional spring Yes← ----
Enclosed gas pressure 1,000 kPa
(10 kg/cm
2,
142 psi)← ----
MAINTENANCE SPECIFICATIONS

SPEC
2 - 16
EC212300
ELECTRICAL
Item Standard Limit
Ignition system:
Advancer type Electrical ----
CDI:
Magneto-model (stator)/manufac-
turer5XC-G0/YAMAHA ----
Charging coil 1 resistance (color) 720 ~ 1,080 Ω at 20 °C (68 °F)
(Green – Brown)----
Charging coil 2 resistance (color) 44 ~ 66 Ω at 20°C (68 °F)
(Black – Pink)----
Pickup coil resistance (color) 248 ~ 372 Ω at 20°C (68 °F)
(White – Red)----
CDI unit-model/manufacturer 5XC-90/YAMAHA (For USA)
5XC-A0/YAMAHA (Except for USA)----
----
Ignition coil:
Model/manufacturer 5UL-10/DENSO ----
Minimum spark gap 6 mm (0.24 in) ----
Primary coil resistance 0.08 ~ 0.10 Ω at 20 °C (68 °F) ----
Secondary coil resistance 4.6 ~ 6.8 kΩ at 20 °C (68 °F) ----
Part to be tightened Thread size Q’tyTightening torque
Nm m·kg ft·lb
Stator M6 × 1.0 3 10 1.0 7.2
Rotor M12 × 1.25 1 56 5.6 40
Neutral switch M5 × 0.8 2 4 0.4 2.9
MAINTENANCE SPECIFICATIONS

SPEC
2 - 13 Bras oscillant:
Limite de jeu du bras oscillant
Extrémité---- 1,0 mm (0,04 in)
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 9,5 mm (0,374 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
SPEC
LUBRICATION DIAGRAMS
1Oil filter element
2Oil pump
3Drive axle
4Main axle
5Intake camshaft
6Exhaust camshaft
7Oil tank
8Oil delivery pipe
ÈTo oil tank
LUBRICATION DIAGRAMS

2 - 19
SPEC
1Crankshaft
2Oil filter element
3Oil tank
4Oil hose
ÈFrom oil pump
LUBRICATION DIAGRAMS