2002 YAMAHA WR 426F lock

5 - 61
CHAS
Organisation de la dépose Ordre Nom de pièce QtéRemarques
9 Contre-écrou 1 Desserrer uniquement.
10 Dispositif de réglage 1 Desserrer uniquement.
11 Guide de ressort (inférieur) 1
12 Guide de ressort (supérieur) 1
13 Ressort (amortisseur arrière) 1
14 Roulement 2 Se reporter à “POINTS DE DEPOSE”.
2
Demontage-ArbeitenReihen-
folgeBauteil Anz. Bemerkungen
9 Sicherungsmutter 1 Nur lockern.
10 Einstellmutter 1 Nur lockern.
11 Federsitz (unten) 1
12 Federsitz (oben) 1
13 Feder (Federbein) 1
14 Lager 2 Siehe unter “AUSBAU”.
2
AMORTISSEUR ARRIERE
FEDERBEIN
AMORTIGUADOR TRASERO
Alcance de la extracción Orden Denominación de la pieza Cantidad Observaciones
9 Contratuerca 1 Aflojándolo únicamente.
10 Ajustador 1 Aflojándolo únicamente.
11 Guía del resorte (inferior) 1
12 Guía del resorte (superior) 1
13 Resorte (amortiguador trasero) 1
14 Cojinete 2 Consulte el apartado “PUNTOS DE EXTRACCIÓN”.
2

5 - 65
CHASREAR SHOCK ABSORBER
2. Tighten:
Adjuster 1
3. Adjust:
Spring length (installed) a
* For EUROPE
NOTE:
The length of the spring (installed) changes
1.5 mm (0.06 in) per turn of the adjuster.
CAUTION:
Never attempt to turn the adjuster beyond
the maximum or minimum setting.
Spring length (installed) a:
Standard
lengthExtent of
adjustment
246 mm (9.69 in)
*247 mm (9.72 in)240.5 ~ 258.5 mm
(9.47 ~ 10.18 in)
4. Tighten:
Locknut 1
Rear shock absorber
1. Install:
Dust seal 1
O-ring 2
Collar 3
NOTE:
Apply the molybdenum disulfide grease on
the bearing.
Apply the lithium soap base grease on the
dust seals, O-rings and collars.
New

–+ELEC
SYSTEME D’ALLUMAGE
ZÜNDANLAGE
SISTEMA DE ENCENDIDO
ZÜNDFUNKENSTRECKE KON-
TROLLIEREN
1. Den Zündkerzenstecker von
der Zündkerze abziehen.
2. Den Zündfunkenstreckente-
ster 1 (bzw. 2) wie abgebil-
det anschließen.
Zündkerzenstecker 3
Zündkerze 4
ÅNur USA und CDN
ıNicht USA und CDN
3.Den Motor mit dem Kick-
starter durchdrehen
.
4. Die Zündfunkenstrecke kon-
trollieren.
5. Den Motor anlassen und die
Zündfunkenstrecke vergrö-
ßern, bis es zu Fehlzündun-
gen kommt (nur USA und
CDN).
Min. Zündfunkenstrecke
6,0 mm
STECKVERBINDER- UND KABEL-
ANSCHLÜSSE KONTROLLIEREN
1. Kontrollieren:
Steckverbinder- und Kabel-
anschlüsse
Rost/Staub/Lockerheit/Kurz-
schluß → Instand setzen
oder erneuern.
MOTORSTOPPSCHALTER “ENGI-
NE STOP” KONTROLLIEREN
1. Kontrollieren:
Motorstoppschalter
(auf Durchgang)
Kein Durchgang bei gedrücktem
Schalter → Erneuern.
Durchgang bei freigelassenem
Schalter → Erneuern. Meßkabel (+) →
Schwarz/Weiß Kabel 1
Meßkabel (–) →
Schwarz Kabel 2
B/W
1 B
2 Meßge-
rät-
Einstel-
GE-
DRÜCKT
Ω × 1
FREI
TEST DE L’INTERVALLE D’ETIN-
CELLEMENT D’ALLUMAGE
1. Déconnecter le capuchon de bou-
gie de la bougie.
2. Connecter le testeur dynamique
d’étincelle 1 (testeur d’allu-
mage 2) comme indiqué.
Capuchon de bougie 3
Bougie 4
ÅPour les USA et le CDN
ıExcepté pour les USA et le CDN
3. Actionner le démarreur au pied.
4. Contrôler la longueur d’étincelle
d’allumage.
5. Démarrer le moteur et augmenter
la longueur d’étincelle jusqu’à ce
qu’un raté se produise. (unique-
ment USA et CDN)
Longueur d’étincelle mini-
mum:
6,0 mm (0,24 in)
CONTROLE DES CONNEXIONS
DE COUPLEURS ET FILS
1. Contrôler:
Connexion de coupleurs et fils
Rouille/poussière/jeu/court-cir-
cuit → Réparer ou changer.
CONTROLE DU BOUTON
D’ARRET DU MOTEUR “ENGINE
STOP”
1. Vérifier:
Continuité du bouton d’arrêt du
moteur “ENGINE STOP”
Pas de continuité lorsque enfoncé →
Changer.
Continuité lorsque relâché → Changer. Fil (+) de multimètre →
Fil noir/blanc 1
Fil (–) de multimètre → Fil noir 2
B/W
1B
2Position de
sélecteur
du multi-
mètre
EN-
FONCE
Ω × 1
RE-
LACHE
6 - 4
PRUEBA DE LA SEPARACIÓN
ENTRE PUNTAS DE LA BUJÍA
1. Desconecte la tapa de puntas de
la bujía de la bujía misma.
2. Conecte el tester dinámico de la
bujía 1 (comprobador de encen-
dido 2) tal y como se muestra.
Tapa de la bujía 3
Bujía 4
ÅPara USA y CDN
ıExcepto USA y CDN
3. Accione el arrancador del pedal.
4. Compruebe la separación entre
puntas de la bujía de encendido.
5. Arranque el motor e incremente
la separación entre puntas de la
bujía hasta que deje de saltar la
chispa (solamente para USA y
CDN).
Separación entre puntas
mínima de la bujía:
6,0 mm (0,24 in)
INSPECCIÓN DE ACOPLADORES
Y CONEXIÓN DE CABLES
1. Comprobar:
Conexión de acopladores y
cables
Oxido/polvo/flojedad/cortocir-
cuito → Reparar o reemplazar.
INSPECCIÓN DEL BOTÓN DE
PARADA DE MOTOR “ENGINE
STOP”
1. Inspeccionar:
Conducto del botón de parada
de motor “ENGINE STOP”
Sin continuidad mientras se mantiene
pulsado → Reemplazar.
Con continuidad mientras se suelta →
Reemplazar.Cable del tester (+) →
Cable negro/blanco 1
Cable del tester (–) →
Cable negro 2
B/W
1B
2Posición
del selec-
tor del tes-
ter
PULSAR
(PUSH
IN)
Ω × 1
LIBRE

–+ELEC
HINWEIS ZUM UMGANG
ACHTUNG:
Nicht die Schraube {(Drosselposi-
tionssensor, TPS)} 1 lösen, aus-
genommen wenn der TPS (Dros-
selpositionssensor) aufgrund von
Fehlfunktion ausgetauscht wer-
den muß, denn dadurch wird ein
Nachlassen der Motorleistung be-
wirkt.
INSPEKTION DER STECKVERBIN-
DUNGEN UND KABELANSCHLÜS-
SE
1. Prüfen:
Steckverbindungen und Ka-
belanschlüsse
Rost/Staub/Lockerung/Kurz-
schluß → Reparieren oder
austauschen.
INSPEKTION DER TPS-SPULE
1. Prüfen:
Widerstand der TPS-Spule
Außerhalb des Sollwerts →
Austauschen.
2. Lockerung:
Drosselklappen-Anschlag-
schraube 1
HINWEIS:
Die Drosselklappen-Anschlag-
schraube herausdrehen, bis die
Drosselklappenwelle vollständig ge-
schlossen ist.Prüfgerätkabel (+) →
Blaues Kabel 1
Prüfgerätkabel (–) →
Schwarzes Kabel 2
TPS-Spu-
lenwider-
standPrüfgeräte-
instellung
4–6 kΩ
bei 20 ˚CkΩ × 1
REMARQUE
ATTENTION:
Ne pas desserrer la vis (TPS) 1 sauf
s’il faut changer le capteur de position
en raison d’un problème, sinon le
moteur sera moins performant.
CONTROLE DES CONNEXIONS
DES COUPLEURS ET DES FILS
1. Vérifier:
Connexion coupleurs et fils
Rouille/poussière/court-circuit
→ Réparer ou remplacer.
CONTROLE DE LA BOBINE DE
TPS
1. Contrôler:
Résistance de la bobine de TPS
Hors spécifications → Rempla-
cer.
2. Serrer:
Vis d’arrêt d’accélérateur 1
N.B.:
Tourner la vis d’arrêt d’accélérateur
jusqu’à ce que l’axe de l’accélérateur
soit en position de fermeture complète. Fil (+) de multimètre → Fil bleu 1
Fil (–) de multimètre → Fil noir 2
Résistance
de la bobine
de TPS Position du
sélecteur de
multimètre
4 à 6 kΩ à
20 ˚C (68 ˚F)kΩ × 1
NOTA SOBRE EL MANEJO
PRECAUCION:
No aflojar el tornillo {TPS (sensor de
posición del acelerador)} 1 excepto
cuando haya que cambiar el TPS (sen-
sor de posición del acelerador) a causa
de un fallo, porque esto producirá una
caída en el rendimiento del motor.
INSPECCIÓN DE LA CONEXIÓN
DE LOS CABLES Y LOS ACOPLA-
DORES
1. Inspeccionar:
Conexión de cables y acopla-
dores
Óxido/polvo/flojedad/cortocir-
cuito → Reparar o reemplazar.
INSPECCIÓN DE LA BOBINA TPS
1. Inspeccionar:
Resistencia de la bobina TPS
Fuera de especificaciones →
Reemplazar.
2. Aflojar:
Tornillo de parad del acelera-
dor 1
NOTA:
Gire hacia fuera el tornillo de parada del
acelerador hasta que el eje del acelerador
esté en la posición completamente
cerrado.Cable del tester (+) →
Cable azul 1
Cable del tester (–) →
Cable negro 2
Resistencia
de la bobina
TPS Posición del
selector del
tester
4 ~ 6 kΩ a
20 ˚C (68 ˚F)kΩ × 1
6 - 8
SYSTEME TPS (CAPTEUR DU PAPILLON D’ACCELERATION)
TPS-SYSTEM (DROSSELKLAPPEN-POSITIONSSENSOR)
SISTEMA TPS (SENSOR DE POSICIÓN DEL ACELERADOR)

7 - 13
TUNSETTING
EC722011
Front fork setting
The front fork setting should be made depend-
ing on the rider’s feeling of an actual run and
the circuit conditions.
The front fork setting includes the following
three factors:
1. Setting of air spring characteristics
Change the fork oil level.
2. Setting of spring preload
Change the spring.
Install the adjustment washer.
3. Setting of damping force
Change the compression damping.
Change the rebound damping.
The spring acts on the load and the
damping force acts on the cushion
travel speed.
EC723001
Change in level and characteristics of fork
oil
Damping characteristic near the final stroke
can be changed by changing the fork oil
amount.
CAUTION:
Adjust the oil level in 5 mm (0.2 in) incre-
ments or decrements. Too low oil level
causes the front fork to produce a noise at
full rebound or the rider to feel some pres-
sure on his hands or body. Alternatively,
too high oil level will develop unexpectedly
early oil lock with the consequent shorter
front fork travel and deteriorated perfor-
mance an characteristics. Therefore, adjust
the front fork within the specified range.
* For EUROPE
ÅAir spring characteristics in relation to oil level
change
ıLoad
ÇStroke
1Max. oil level
2Standard oil level
3Min. oil level
Standard oil level:
135 mm (5.31 in)
*125 mm (4.92 in)
Extent of adjustment:
80 ~ 150 mm (3.15 ~ 5.91 in)
From top of outer tube with
inner tube and damper rod fully
compressed without spring.
Å

7 - 17
TUN
EC72B000
Rear suspension setting
The rear suspension setting should be made
depending on the rider’s feeling of an actual
run and the circuit conditions.
The rear suspension setting includes the fol-
lowing two factors:
1. Setting of spring preload
Change the set length of the spring.
Change the spring.
2. Setting of damping force
Change the rebound damping.
Change the compression damping.
EC72C001
Choosing set length
1. Place a stand or block under the engine
to put the rear wheel above the floor, and
measure the length a between the rear
wheel axle center and the rear fender
holding bolt.
2. Remove the stand or block from the
engine and with a rider astride the seat,
measure the sunken length b between
the rear wheel axle center and the rear
fender holding bolt.
3. Loosen the locknut 1 and make adjust-
ment by turning the spring adjuster 2 to
achieve the standard figure from the sub-
traction of the length b from the length
a.
Standard figure:
90 ~ 100 mm (3.5 ~ 3.9 in)
SETTING

7 - 21
TUNSETTING
EC72H002
Suspension 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 range

Compression 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 range

Outer 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 movement

Rebound damping
Oil sealTurn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Apply grease in oil seal wall.
Soft over entire range,
bottoming out

Compression 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 end
Oil level (oil amount) Decrease oil level by about 5 mm (0.2 in).
Soft toward stroke end,
bottoming out
Oil 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 posture

Compression 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, tend-
ing to upper front pos-
ture

Compression 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).

7 - 22
TUNSETTING
Rear shock absorber
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.
Adjust the rebound damping in 2-click increments or decrements.
Adjust the low compression damping in 1-click increments or decrements.
Adjust the high compression damping in 1/6 turn increments or decrements.
SymptomSection
Check Adjust
JumpLarge
gapMedium
gapSmall
gap
Stiff, tending to sink

Rebound damping
Spring set lengthTurn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Set sunken length for 90 ~ 100 mm (3.5 ~ 3.9 in) when
one passenger is astride seat.
Spongy and unstable

Rebound damping
Low compression damping
SpringTurn adjuster clockwise (about 2 clicks) to increase
damping.
Turn adjuster clockwise (about 1 clicks) to increase
damping.
Replace with stiff spring.
Heavy and dragging

Rebound damping
SpringTurn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Replace with soft spring.
Poor road gripping

Rebound damping
Low compression damping
High compression damp-
ing
Spring set length
SpringTurn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Turn adjuster clockwise (about 1 clicks) to increase
damping.
Turn adjuster clockwise (about 1/6 clicks) to increase
damping.
Set sunken length for 90 ~ 100 mm (3.5 ~ 3.9 in) when
one passenger is astride seat.
Replace with soft spring.
Bottoming out

High compression damp-
ing
Spring set length
SpringTurn adjuster clockwise (about 1/6 turn) to increase
damping.
Set sunken length for 90 ~ 100 mm (3.5 ~ 3.9 in) when
one passenger in astride seat.
Replace with stiff spring.
Bouncing

Rebound damping
SpringTurn adjuster clockwise (about 2 clicks) to increase
damping.
Replace with soft spring.
Stiff travel

High compression damp-
ing
Spring set length
SpringTurn adjuster counterclockwise (about 1/6 turn) to
decrease damping.
Set sunken length for 95 ~ 100 mm (3.7 ~ 3.9 in) when
one passenger is astride seat.
Replace with soft spring.