2006 YAMAHA WR 250F torque

5 - 87
CHASFRONT FORK
Installation
1. Install:
Front fork
1
NOTE:Temporarily tighten the pinch bolts
(lower bracket).
Do not tighten the pinch bolts
(upper bracket) yet.
2. Tighten:
Front fork cap bolt
1
3. Adjust:
Front fork top end
a
T R..30 Nm (3.0 m · kg, 22 ft · lb)
Front fork top end
(standard) a
:
5 mm (0.20 in)
4. Tighten:
Pinch bolt (upper bracket)
1
Pinch bolt (lower bracket)
2
CAUTION:
Tighten the lower bracket to speci-
fied torque. If torqued too much, it
may cause the front fork to mal-
function.
T R..23 Nm (2.3 m · kg, 17 ft · lb)
T R..20 Nm (2.0 m · kg, 14 ft · lb)
5. Install:
Speed sensor lead
1
Plate 1
2
Bolt (plate 1)
3
To right protector
4.
NOTE:Install the speed sensor lead so that
its paint
a directs as shown and
align the bottom
b of the plate 1 with
the same paint.
T R..4 Nm (0.4 m · kg, 2.9 ft · lb)ab
4 31
2
Montage
1. Monter:
Fourche 1
N.B.:
Serrer provisoirement les boulons de
pincement (té inférieur).
Ne pas encore serrer les boulons de
pincement (té supérieur).
2. Serrer:
Bouchon de tube de fourche 1
3. Régler:
Extrémité supérieure de la four-
che avant a
T R..30 Nm (3,0 m · kg, 22 ft · lb)
Sommet de bras de fourche
(standard) a:
5 mm (0,20 in)
4. Serrer:
Boulon de pincement (té supé-
rieur) 1
Boulon de pincement (té infé-
rieur) 2
ATTENTION:
Serrer le té inférieur au couple spéci-
fié. Un serrage excessif peut compro-
mettre le bon fonctionnement de la
fourche avant.
T R..23 Nm (2,3 m · kg, 17 ft · lb)
T R..20 Nm (2,0 m · kg, 14 ft · lb)
5. Monter:
Fil du capteur de vitesse 1
Plaque 1 2
Boulon (plaque 1) 3
Vers le dispositif de protection
(droite) 4.
N.B.:
Monter le fil du capteur de vitesse de
sorte que le repère a soit orienté comme
illustré et aligner le bas b de la plaque 1
sur cette même marque.
T R..4 Nm (0,4 m · kg, 2,9 ft · lb)
FOURCHE

5 - 119
CHASSTEERING
13. Tighten:
•Pinch bolt (upper bracket)
1
•Pinch bolt (lower bracket)
2
CAUTION:
Tighten the lower bracket to speci-
fied torque. If torqued too much, it
may cause the front fork to mal-
function.
T R..23 Nm (2.3 m · kg, 17 ft · lb)
T R..20 Nm (2.0 m · kg, 14 ft · lb)
14. Install:
•Multi-function display bracket
1
•Multi-function display
2
NOTE:Pass the throttle cables
3, clutch
cable
4 and hot starter cable
5
between the multi-function display
bracket and upper bracket.
T R..7 Nm (0.7 m · kg, 5.1 ft · lb)
T R..4 Nm (0.4 m · kg, 2.9 ft · lb)
35
4
1
2
15. Install:
•Holder
1
NOTE:•Install so that the marking on the
speed sensor lead aligns with the
holder edge.
•Fasten the speed sensor lead to
the holder with the clamp
2.
T R..7 Nm (0.7 m · kg, 5.1 ft · lb)1
2
13. Serrer:
Boulon de pincement (té supé-
rieur) 1
Boulon de pincement (té infé-
rieur) 2
ATTENTION:
Serrer le té inférieur au couple spéci-
fié. Un serrage excessif peut compro-
mettre le bon fonctionnement de la
fourche.
T R..23 Nm (2,3 m · kg, 17 ft · lb)
T R..20 Nm (2,0 m · kg, 14 ft · lb)
14. Monter:
Support de l’écran multifonction
1
Ecran multifonction 2
N.B.:
Passer les câbles des gaz 3, le câble
d’embrayage 4 et le câble du démarreur
à chaud 5 entre le support de l’écran
multifonction et le té supérieur.
T R..7 Nm (0,7 m · kg, 5,1 ft · lb)
T R..4 Nm (0,4 m · kg, 2,9 ft · lb)
15. Monter:
Support 1
N.B.:
Le monter de sorte que la marque sur
le fil du capteur de vitesse soit alignée
sur le bord du support.
Fixer le fil du capteur de vitesse sur le
support à l’aide du collier 2.
T R..7 Nm (0,7 m · kg, 5,1 ft · lb)
DIRECTION

7 - 39
TUNSETTING
EC72H002Suspension setting
•Front fork
NOTE:•If any of the following symptoms is experienced with the standard position as the base, make resetting by reference to
the adjustment procedure given in the same chart.
•Before any change, set the rear shock absorber sunken length to the standard figure 90 ~ 100 mm (3.5 ~ 3.9 in).
SymptomSection
Check Adjust
JumpLarge
gapMedium
gapSmall
gap
Stiff over entire rangeCompression damping
Oil level (oil amount)
SpringTurn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Decrease oil level by about 5 ~ 10 mm (0.2 ~ 0.4 in).
Replace with soft spring.
Unsmooth movement
over entire rangeOuter tube
Inner tube
Under bracket tightening
torqueCheck for any bends, dents, and other noticeable
scars, etc. If any, replace affected parts.
Retighten to specified torque.
Poor initial
movementRebound damping
Oil sealTurn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Apply grease in oil seal wall.
Soft over entire
range, bottoming outCompression damping
Oil level (oil amount)
SpringTurn adjuster clockwise (about 2 clicks) to increase
damping.
Increase oil level by about 5 ~ 10 mm (0.2 ~ 0.4 in).
Replace with stiff spring.
Stiff toward stroke
endOil level (oil amount) Decrease oil level by about 5 mm (0.2 in).
Soft toward stroke
end, bottoming outOil level (oil amount) Increase oil level by about 5 mm (0.2 in).
Stiff initial movement Compression dampingTurn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Low front, tending to
lower front postureCompression damping
Rebound damping
Balance with rear end
Oil level (oil amount)Turn adjuster clockwise (about 2 clicks) to increase
damping.
Turn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Set sunken length for 95 ~ 100 mm (3.7 ~ 3.9 in)
when one passenger is astride seat (lower rear
posture).
Increase oil level by about 5 mm (0.2 in).
“Obtrusive” front,
tending to upper front
postureCompression damping
Balance with rear end
Spring
Oil lever (oil amount)Turn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Set sunken length for 90 ~ 95 mm (3.5 ~ 3.7 in)
when one passenger is astride seat (upper rear
posture).
Replace with soft spring.
Decrease oil level by about 5 ~ 10 mm (0.2 ~ 0.4 in).