air suspension YAMAHA YZ250F 2007 Notices Demploi (in French)

SPEC
2 - 3 Boîte de vitesse:
Système de réduction primaire Pignon
Taux de réduction primaire 57/17 (3,353)
Système de réduction secondaire Transmission par chaîne
Taux de réduction secondaire 49/13 (3,769)
Type de boîte de vitesses Toujours en prise, 5-rapports
Commande Pied gauche
Rapport de démultiplication: 1ère 30/14 (2,143)
2ème 28/16 (1,750)
3ème 29/20 (1,450)
4ème 27/22 (1,227)
5ème 25/24 (1,042)
Châssis: USA, CDN,
AUS, NZ, ZAEUROPE (Sauf
F)F
Type de cadre Simple ber-
ceau dédoublé← ←
Angle de chasse 27,0°←27,1°
Chasse 115,6 mm
(4,55 in)116,7 mm
(4,59 in)118,1 mm
(4,65 in)
Pneus:
Type A chambre à air
Taille (avant) 80/100-21 51M (USA, CDN, ZA, AUS, NZ et F)
80/100-21 51R (EUROPE sauf F)
Taille (arrière) 100/90-19 57M (USA, CDN, ZA, AUS, NZ et F)
100/90-19 NHS (EUROPE sauf F)
Pression de gonflage (avant et arrière) 100 kPa (1,0 kgf/cm
2, 15 psi)
Freins:
Type de frein avant Frein monodisque
Commande Main droite
Type de frein arrière Frein monodisque
Commande Pied droit
Suspension:
Suspension avant Fourche télescopique
Suspension arrière Bras oscillant (suspension monocross à bras)
Amortisseur:
Amortisseur avant Ressort hélicoïdal/amortisseur hydraulique
Amortisseur arrière Ressort hélicoïdal/pneumatique, amortisseur
hydraulique
Débattement des roues:
Débattement de roue avant 300 mm (11,8 in)
Débattement de roue arrière 307 mm (12,1 in)
Système électrique:
Système d’allumage Volant magnétique CDI
CARACTERISTIQUES GENERALES

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
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

5 - 33
CHASFRONT FORK
EC555000
ASSEMBLY AND INSTALLATION
Front fork assembly
1. Wash the all parts in a clean solvent.
2. Stretch the damper assembly fully.
3. Fill:
Front fork oil 1
To damper assembly.
CAUTION:
Be sure to use recommended fork oil. If
other oils are used, they may have an
excessively adverse effect on the front
fork performance.
Never allow foreign materials to enter the
front fork.
Recommended oil:
Suspension oil “S1”
Oil capacity:
195 cm
3 (6.86 Imp oz, 6.59 US oz)
4. After filling, pump the damper assembly 1
slowly up and down (about 200 mm (7.9 in)
stroke) several times to bleed the damper
assembly of air.
NOTE:
Be careful not to excessive full stroke. A stroke
of 200 mm (7.9 in) or more will cause air to
enter. In this case, repeat the steps 2 to 4.