2002 YAMAHA WR 250F lock

5 - 33
CHAS

Front fork cap bolt
1. Inspect:

Front fork cap bolt
1


O-ring
2


Air bleed screw
3

Wear/damage
→
Replace.
FRONT FORK
EC555000
ASSEMBLY AND INSTALLATION
Front fork assembly
1. Wash the all parts in a clean solvent.
2. Install:

Damper rod
1

To inner tube
2
.
CAUTION:

To install the damper rod into the inner
tube, hold the inner tube aslant. If the inner
tube is held vertically, the damper rod may
fall into it, damaging the valve inside.
3. Install:

Copper washer
1


O-ring
2
Base valve 3
To inner tube 4.
4. Tighten:
Base valve 1
NOTE:
Use a damper rod holder 2 to lock the
damper rod 3.
Apply the LOCTITE® on the base valve
thread.
Damper rod holder:
YM-1423/90890-01423
T R..55 Nm (5.5 m · kg, 40 ft · lb)

5 - 34
CHASFRONT FORK
5. Install:
Spring guide 1
Locknut 2
To damper rod 3.
NOTE:
Install the spring guide with its cut a facing
upward.
With its thread b facing upward, fully finger
tighten the locknut onto the damper rod.
6. Install:
Dust seal 1
Stopper ring 2
Oil seal 3
Oil seal washer 4
Slide metal 5
To inner tube 6.
NOTE:
Apply the fork oil on the inner tube.
When installing the oil seal, use vinyl seat a
with fork oil applied to protect the oil seal lip.
Install the oil seal with its manufacture’s
marks or number facing the axle holder side.
7. Install:
Piston metal 1
NOTE:
Install the piston metal onto the slot on inner
tube.
8. Install:
Outer tube 1
To inner tube 2.

5 - 38
CHASFRONT FORK
21. Measure:
Distance a
Out of specification → Turn into the
locknut.
Distance a:
20 mm (0.79 in) or more
Between damper rod 1 top and
locknut 2 top.
22. Loosen:
Rebound damping adjuster 1
NOTE:
Loosen the rebound damping adjuster finger
tight.
Record the set position of the adjuster (the
amount of turning out the fully turned in posi-
tion).
23. Install
Cushion rubber 1
Washer 2
Spacer 3
To front fork cap bolt 4.
NOTE:
Install the cushion rubber with its smaller
dia.end a facing the front fork cap bolt.
24. Install:
Push rod 1
Fork spring 2
NOTE:
Install the fork spring with the damper rod 3
pulled up.
After installing the fork spring, hold the
damper rod end so that it will not go down.
25. Install:
Front fork cap bolt 1
Fully tighten the front fork cap bolt onto
the damper rod by hand.

5 - 39
CHASFRONT FORK
26. Tighten:
Front fork cap bolt (locknut) 1
NOTE:
While compressing the fork spring, set the
thin type spanners 2 between the spacer 3
and spring guide 4.
Hold the locknut 5 and tighten the front fork
cap bolt with specified torque.
T R..29 Nm (2.9 m · kg, 21 ft · lb)
27. Install:
Front fork cap bolt 1
To outer tube.
NOTE:
Temporarily tighten the cap bolt.
28. Install:
Protector guide 1
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
* For EUROPE
** For AUS, NZ and ZA
Front fork top end (standard) a:
5 mm (0.20 in)
* 8 mm (0.31 in)
** 10.5 mm (0.41 in)
T R..30 Nm (3.0 m · kg, 22 ft · lb)

5 - 48
CHAS
ETAPES DE SERRAGE:Serrer l’écrou crénelé de direction à un couple d’environ 38 Nm (3,8 m • kg, 27 ft • lb).Le desserrer d’un tour.Le resserrer à un couple d’environ 7 Nm (0,7 m • kg, 5,1 ft • lb)
Organisation de la dépose Ordre Nom de pièce QtéRemarques
8 Roulement supérieur 1
9 Roulement inférieur 1 Se reporter à “POINTS DE DEPOSE”.
10Cage à billes
2Se reporter à “POINTS DE DEPOSE”.
2
ANZUGSREIHENFOLGE:
Lenkerringmutter mit 38 Nm (3,8 m • kg) festziehen.Um eine Umdrehung lockern.Nochmals mit 7 Nm (0,7 m • kg) festziehen.
Demontage-ArbeitenReihen-
folgeBauteil Anz. Bemerkungen
8 Oberes Lager 1
9 Unteres Lager 1 Siehe unter “AUSBAU”.
10Laufring
2Siehe unter “AUSBAU”.
2
OPERAZIONI DI SERRAGGIO:
Serrare la ghiera. 38 Nm (3,8 m • kg, 27 ft • lb)
Allentarla di un giro.
Riserrarla. 7 Nm (0,7 m • kg, 5,1 ft • lb)
Portata dello smontaggio Ordine Denominazione QuantitàOsservazioni
8 Cuscinetto superiore 1
9 Cuscinetto inferiore 1 Fare riferimento a “PUNTI DI RIMOZIONE”.
10 Pista 2 Fare riferimento a “PUNTI DI RIMOZIONE”.
2
DIRECTION
LKKOPF
STERZO

5 - 51
CHAS
4. Install:
Washer 1
Steering ring nut 2
Tighten the steering ring nut using the
steering nut wrench 3.
Refer to “STEERING HEAD INSPEC-
TION AND ADJUSTMENT” section in
the CHAPTER 3.
T R..7 Nm (0.7 m · kg, 5.1 ft · lb)
5. Check the steering stem by turning it lock
to lock. If there is any binding, remove
the steering stem assembly and inspect
the steering bearings.
6. Install:
Washer 1
7. Install:
Front fork 1
Upper bracket 2
NOTE:
Temporarily tighten the pinch bolts (lower
bracket).
Do not tighten the pinch bolts (upper bracket)
yet.
8. Install:
Washer 1
Steering stem nut 2
T R..145 Nm (14.5 m · kg, 105 ft · lb)
STEERING

5 - 60
CHAS
AMORTISSEUR ARRIERE
FEDERBEIN
AMMORTIZZATORE POSTERIORE
FEDERBEIN
Demontage-Arbeiten:1 Federbein demontieren2 Federbein zerlegen
Demontage-ArbeitenReihen-
folgeBauteil Anz. Bemerkungen
Vorbereitung für den AusbauFEDERBEIN DEMONTIEREN
Das Motorrad am Motor aufbocken.
Sitze und Seitenabdeckungen Siehe Abschnitt “SITZBANK, KRAFTSTOFFTANK
UND SEITENABDECKUNGEN” in KAPITEL 4.
Schalldämpfer Siehe Abschnitt “AUSPUFF UND SCHALLDÄMP-
FER” in KAPITEL 4.
Kühlflüssigkeit ablassen. Siehe Abschnitt “KÜHLFLÜSSIGKEIT WECHSELN”
in KAPITEL 3.
Kühlmittelausgleichsbehälter Siehe Abschnitt “KÜHLER” in KAPITEL 4.
1Rücklicht-Steckverbinder 2
2 Band 2
3 Schraube (Bremsflüssigkeitsbehälter) 1
4 Schlauchschelle (Luftfilteranschluß) 1 Nur lockern.
5 Rahmenhinterteil 1
6 Schraube (Umlenkhebel, Federbein) 1 Die Schwinge festhalten.
7 Schraube (Federbein, Rahmen) 1
8Federbein
1
WARNUNG
Das Motorrad gegen Umfallen sichern.
21
AMORTISSEUR ARRIERE
Organisation de la dépose:1 Dépose de l’amortisseur arrière2 Démontage de l’amortisseur arrière
Organisation de la dépose Ordre Nom de pièce QtéRemarques
Préparation pour la déposeDEPOSE DE L’AMORTISSEUR
ARRIERE
Maintenir la machine en plaçant un support
approprié sous le moteur.
Selle et caches latéraux Se référer à la section “SELLE, RESERVOIR A
ESSENCE ET CACHES LATERAUX” du CHAPITRE 4.
Silencieux Se référer à la section “TUYAU D'ECHAPPEMENT ET
SILENCIEUX” du CHAPITRE 4.
Vidanger le liquide de refroidissement. Se référer à la section “REMPLACEMENT DU
LIQUIDE DE REFROIDISSEMENT” du CHAPITRE 3.
Vase d’expansion Se référer à la section “RADIATEUR” du CHAPITRE 4.
1 Connecteur de feu 2
2 Bande 2
3 Boulon (réservoir liquide de frein) 1
4 Bride (raccord de filtre à air) 1 Desserrer uniquement.
5 Cadre arrière 1
6 Boulon (amortisseur arrière-bras de relais) 1 Tenir le bras oscillant.
7 Boulon (amortisseur arrière-cadre) 1
8Amortisseur arrière
1
AVERTISSEMENT
Bien soutenir la machine afin qu’elle ne risque
pas de se renverser.
21
AMMORTIZZATORE POSTERIORE
Portata dello smontaggio:1 Rimozione ammortizzatore posteriore2 Smontaggio ammortizzatore posteriore
Portata dello smontaggio Ordine Denominazione QuantitàOsservazioni
Preparazione per la rimozioneRIMOZIONE AMMORTIZZATORE
POSTERIORE
Mantenere il veicolo posizionando un supporto
idoneo sotto al motore.
AVVERTENZA
Sostenere saldamente il veicolo in modo che non ci siail rischio che si rovesci.
Sella e carenature laterali Fare riferimento al paragrafo “SELLA, SERBATOIO
DEL CARBURANTE E CARENATURA LATERALE” .
Silenziatore Fare riferimento al paragrafo “TUBO DI SCARICO E
SILENZIATORE” nel CAPITOLO 4.
Scaricare il refrigerante. Fare riferimento al paragrafo “SOSTITUZIONE REFRI-
GERANTE” nel CAPITOLO 3.
Serbatoio del liquido di raffreddamento Fare riferimento al paragrafo “RADIATORE” nel CAPI-
TOLO 4.
1 Connettore del fanalino posteriore 2
2 Band 2
3 Bullone (serbatoio) 1
4 Morsetto (giunto filtro dell’aria) 1 Allentare soltanto.
5 Telaio posteriore 1
6 Bullone (ammortizzatore posteriore - leva di
rinvio)1 Sostenere il forcellone oscillante.
7 Bullone (ammortizzatore posteriore - telaio) 1
8Ammortizzatore posteriore
1
21

5 - 61
CHASREAR SHOCK ABSORBER
Extent of removal Order Part name Q’ty Remarks
9 Locknut 1 Only loosening.
10 Adjuster 1 Only loosening.
11 Lower spring guide 1
12 Upper spring guide 1
13 Spring (rear shock absorber) 1
14 Bearing 2 Refer to “REMOVAL POINTS”.
2