brake sensor YAMAHA WR 250F 2007 Manuale duso (in Italian)

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 - 115
SPECCABLE ROUTING DIAGRAM
1Throttle cable
2Clamp
3Brake hose
4Clutch cable
5Hose guide
6Main switch coupler
7Wire harness
8Headlight coupler
9Hot starter cable
0Multi-function display bracket
AMain switch
BUpper bracket
CClutch switch coupler
DEngine stop switch coupler
EMulti-function display coupler
FStart switch coupler
GSpeed sensor couplerHSpeed sensor lead
40˚±10˚

2 - 117
SPECCABLE ROUTING DIAGRAM
ÈFasten the start switch lead to the handlebar with the plastic
bands.
ÉFasten the engine stop switch lead and clutch switch lead to
the handlebar with the plastic bands.
ÊPass the brake hose through the hose guides.
ËSecure the coupler by inserting it into the multi-function display
bracket.
ÌPass the throttle cables, clutch cable and hot starter cable
between the upper bracket and multi-function display bracket.
ÍFasten the multi-function display leads to the bracket. Cut off
the tie end.
ÎSecure the coupler by pushing it into the hole in the multi-func-
tion display bracket.
ÏSecure the wire harness clip by pushing it into the hole in the
multi-function display bracket on the inside.
ÐFasten the wire harness to the multi-function display bracket.
Cut off the tie end.ÑFasten the main switch lead (wire harness side) to the multi-
function display bracket. Locate the clamp end facing toward
the lower side of the frame and cut off the tie end.
ÒPass the speed sensor lead through the guide on the outside
of the front fork.
40˚±10˚

6 - 1
CHASFRONT WHEEL AND REAR WHEEL
EC500000
CHASSIS
EC590000
FRONT WHEEL
AND REAR WHEEL
EC598000FRONT WHEEL
NOTE:This section is intended for those who have basic knowledge and skill concerning the
servicing of Yamaha motorcycles (e.g., Yamaha dealers, service engineers, etc.)
Those who have little knowledge and skill concerning servicing are requested not to
undertake inspection, adjustment, disassembly, or reassembly only by reference to
this manual. It may lead to servicing trouble and mechanical damage.
Extent of removal:
1 Front wheel removal
2 Wheel bearing removal
3 Brake disc removal
Extent of removal Order Part name Q’ty Remarks
FRONT WHEEL REMOVAL
WARNING
Support the machine securely so there is nodanger of it falling over. Preparation for removal Hold the machine by placing the suitable
stand under the engine.
1 Bolt (axle holder) 4 Only loosening.
2 Nut (front wheel axle) 1
3 Front wheel axle 1
4 Front wheel 1
5 Speed sensor 1
6 Collar 1
7 Oil seal 1
8 Bearing 2 Refer to “REMOVAL POINTS”.
9 Brake disc 1
1
2
3
3

6 - 13
CHASFRONT WHEEL AND REAR WHEEL
EC595000ASSEMBLY AND INSTALLATION
Front wheel
1. Install:
Bearing (left)
1
Spacer
2
Bearing (right)
3
Oil seal
4
NOTE:Apply the lithium soap base grease
on the bearing and oil seal lip
when installing.
Use a socket that matches the out-
side diameter of the race of the
bearing.
Left side of bearing shall be
installed first.
Install the oil seal with its manufac-
ture’s marks or numbers facing
outward.
CAUTION:
Do not strike the inner race of the
bearing. Contact should be made
only with the outer race.
New
2. Install:
Brake disc
1
Bolt (brake disc)
2
NOTE:Tighten the bolts in stage, using a
crisscross pattern.
T R..12 Nm (1.2 m · kg, 8.7 ft · lb)
3. Install:
Collar
1
NOTE:Apply the lithium soap base grease
on the oil seal lip.
4. Install:
Speed sensor
1
NOTE:Apply the lithium soap base grease
on the oil seal lip of the speed sen-
sor.
Make sure the two projections
a in
the wheel hub are meshed with the
two slots
b in the speed sensor.
b a1
B
ASSEMBLAGE ET MONTAGE
Roue avant
1. Monter:
Roulement (gauche) 1
Entretoise 2
Roulement (droit) 3
Bague d’étanchéité 4
N.B.:
Appliquer de la graisse à savon de
lithium sur le roulement et la lèvre de
la bague d’étanchéité lors du montage.
Utiliser une douille de même diamètre
que le diamètre extérieur de la cage du
roulement.
Monter d’abord le roulement de gau-
che.
Monter la bague d’étanchéité en posi-
tionnant vers l’extérieur la marque ou
le numéro du fabricant.
ATTENTION:
Ne pas frapper sur la cage interne du
roulement. Le contact ne peut avoir
lieu qu’avec la cage externe.
New
2. Monter:
Disque de frein 1
Boulon (disque de frein) 2
N.B.:
Serrer les boulons par étapes et en procé-
dant en croix.
T R..12 Nm (1,2 m · kg, 8,7 ft · lb)
3. Monter:
Entretoise épaulée 1
N.B.:
Appliquer de la graisse à savon de
lithium sur la lèvre de la bague d’étan-
chéité.
4. Monter:
Capteur de vitesse 1
N.B.:
Appliquer de la graisse à base de
savon au lithium sur la lèvre de bague
d’étanchéité du capteur de vitesse.
Veiller à ce que les deux ergots a du
moyeu de roue s’engrènent dans les
deux fentes b du capteur de vitesse.
ROUE AVANT ET ROUE ARRIERE

6 - 15
CHASFRONT WHEEL AND REAR WHEEL
5. Install:
Wheel
NOTE:Install the brake disc
1 between
the brake pads
2 correctly.
Make sure that the projections
a
in the speed sensor fits over the
stopper
b on the front fork inner
tube.
6. Install:
Wheel axle
1
NOTE:Apply the lithium soap base grease
on the wheel axle.
7. Install:
Nut (wheel axle)
1
T R..90 Nm (9.0 m · kg, 65 ft · lb)
8. Tighten:
Bolt (axle holder)
1
NOTE:Before tightening the bolt, fit the
wheel axle to the axle holder by
stroking the front fork several times
with the front brake applied.
T R..21 Nm (2.1 m · kg, 15 ft · lb)
5. Monter:
Roue
N.B.:
Monter correctement le disque de frein
1 entre les plaquettes de frein 2.
Veiller à ce que les ergots a du cap-
teur de vitesse se positionnent au-des-
sus de la butée b du tube plongeur de
la fourche.
6. Monter:
Axe de roue 1
N.B.:
Appliquer de la graisse à savon de
lithium sur l’axe de roue.
7. Monter:
Ecrou (axe de roue) 1
T R..90 Nm (9,5 m · kg, 65 ft · lb)
8. Serrer:
Boulon (support d’axe) 1
N.B.:
Avant de serrer le boulon, engager l’axe
de roue dans le support d’axe en pous-
sant plusieurs fois sur la fourche en ser-
rant le frein avant.
T R..21 Nm (2,1 m · kg, 15 ft · lb)
ROUE AVANT ET ROUE ARRIERE

6 - 117
CHASSTEERING
7. Install:
•Front fork
1
•Upper bracket
2
•Main switch
3
•Front brake hose guide
bracket
4
NOTE:•Temporarily tighten the pinch bolts
(lower bracket).
•Do not tighten the pinch bolts
(upper bracket) yet.
8. Install:
•Guide (speed sensor lead)
1
NOTE:After installing the guide as shown,
pass the speed sensor lead through
the guide.1
9. Install:
•Washer
1
•Steering stem nut
2
T R..145 Nm (14.5 m · kg, 105 ft · lb)
10. After tightening the nut, check
the steering for smooth move-
ment. If not, adjust the steering
by loosening the steering ring
nut little by little.
11. Adjust:
•Front fork top end
a
Front fork top end
(standard) a:
5 mm (0.20 in)
7. Monter:
Fourche 1
Té supérieur 2
Contacteur à clé 3
Support du guide de durit de frein
avant 4
N.B.:
Serrer provisoirement les boulons de
pincement (té inférieur).
Ne pas encore serrer les boulons de
pincement (té supérieur).
8. Monter:
Guide (fil du capteur de vitesse)
1
N.B.:
Une fois le guide monté comme illustré,
passer le fil du capteur de vitesse par le
guide.
9. Monter:
Rondelle 1
Ecrou de la colonne de direction
2
T R..145 Nm (14,5 m · kg, 105 ft · lb)
10. Après avoir serré l’écrou, vérifier si
le mouvement de la direction est
régulier. Sinon, régler la direction
en desserrant petit à petit l’écrou.
11. Régler:
Extrémité supérieure de la four-
che a
Sommet de bras de fourche
(standard) a:
5 mm (0,20 in)
DIRECTION