2007 YAMAHA WR 450F ECU

5 - 1
CHAS
EC500000
CHASSIS
EC590000
FRONT WHEEL AND REAR WHEEL
EC598000
FRONT WHEEL
FRONT WHEEL AND REAR WHEEL
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
2
13
3

5 - 2
CHAS
EC598100
REAR WHEEL
Extent of removal:
1 Rear wheel removal
2 Wheel bearing removal
3 Brake disc removal
Extent of removal Order Part name Q’ty Remarks
REAR 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 Nut (rear wheel axle) 1
2 Rear wheel axle 1
3 Chain puller 2
4 Rear wheel 1 Refer to “REMOVAL POINTS”.
5 Collar 2
6 Driven sprocket 1
7 Oil seal 2
8 Circlip 1
9 Bearing 2 Refer to “REMOVAL POINTS”.
10 Brake disc 1
3
3
1
2
FRONT WHEEL AND REAR WHEEL

5 - 10
CHASFRONT BRAKE AND REAR BRAKE
EC5A0000
FRONT BRAKE AND REAR BRAKE
EC5A8000
FRONT BRAKE
Extent of removal:
1 Brake hose removal
2 Caliper removal
3 Master cylinder removal
Extent of removal Order Part name Q’ty Remarks
FRONT BRAKE 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.
Drain the brake fluid. Refer to “REMOVAL POINTS”.
1 Brake hose holder (protector) 2
2 Brake hose holder (caliper) 1
3 Union bolt 2
4 Brake hose 1
5 Pad pin plug 1 Remove when loosening the pad pin.
6 Pad pin 1 Loosen when disassembling the caliper.
7 Caliper 1
8Brake lever 1
9 Master cylinder bracket 1
10 Master cylinder
1
1
2
3
3
2

5 - 11
CHAS
EC5A8100
REAR BRAKE
Extent of removal:
1 Master cylinder removal
2 Brake hose removal
3 Caliper removal
Extent of removal Order Part name Q’ty Remarks
REAR BRAKE 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.
Rear wheel Refer to “FRONT WHEEL AND REAR
WHEEL” section.
Drain the brake fluid. Refer to “REMOVAL POINTS”.
1 Brake pedal 1
2 Master cylinder 1
3 Brake hose holder 2
4 Union bolt 2
5 Brake hose 1
6 Pad pin plug 1 Remove when loosening the pad pin.
7 Pad pin 1 Loosen when disassembling the caliper.
8 Caliper 1
1
123
3
FRONT BRAKE AND REAR BRAKE

5 - 19
CHAS
3. Montieren:
Bremssattel
1
Hinterrad
2
Siehe unter “VORDER- UND
HINTERRAD”.
4. Festziehen:
Bremsbelag-Haltestift
3
5. Montieren:
Bremsbelag-Haltestift-Abdek-
kung
4
Hauptbremszylinder-Bauteile
1. Reinigen:
Hauptbremszylinder
Hauptbremszylinder-Bauteile
(mit Bremsflüssigkeit)
T R..18 Nm (1,8 m · kg, 13 ft · lb)
T R..3 Nm (0,3 m · kg, 2,2 ft · lb)
2. Montieren:
primäre Hauptbremszylinder-
Manschette
1
sekundäre Hauptbremszylin-
der-Manschette
2
(am Bremskolben
3)
HINWEIS:
Die Hauptbremszylinder-Manschette
mit Bremsflüssigkeit bestreichen.
WARNUNG
Die Hauptbremszylinder-Man-
schette muss, wie in der Abbil-
dung gezeigt, eingebaut werden.
Eine unsachgemäße Montage
beeinträchtigt die Bremsfunktion.
ÈVorn
ÉHinten
3. Montieren:
Feder
1
(am Bremskolben
2)
HINWEIS:
Die Feder von der Seite mit der klei-
neren Steigung einbauen.
ÈVorn
ÉHinten
3. Monter:
Etrier 1
Roue arrière 2
Se reporter à la section “ROUE
AVANT ET ROUE ARRIERE”.
4. Serrer:
Goupille de plaquette 3
5. Monter:
Bouchon de goupille de pla-
quette 4
Kit de maître-cylindre
1. Nettoyer:
Maître-cylindre
Kit de maître-cylindre
Les nettoyer avec du liquide de
frein.
T R..18 Nm (1,8 m · kg, 13 ft · lb)
T R..3 Nm (0,3 m · kg, 2,2 ft · lb)
2. Monter:
Coupelle du maître-cylindre (pri-
maire) 1
Coupelle du maître-cylindre
(secondaire) 2
Sur le piston du maître-cylindre
3.
N.B.:
Appliquer le liquide de frein sur la cou-
pelle du maître-cylindre.
AVERTISSEMENT
Après la repose, la coupelle du cylin-
dre doit être montée comme indiqué.
Une mauvaise installation provo-
quera un mauvais fonctionnement du
frein.
È
Avant
É
Arrière
3. Monter:
Ressort 1
Sur le piston du maître-cylindre
2.
N.B.:
Reposer le ressort du côté du diamètre le
plus petit.
È
Avant
É
Arrière
3. Instalar:
Pinza 1
Rueda trasera 2
Consulte el apartado “RUEDA
DELANTERA Y RUEDA TRA-
SERA”.
4. Apretar:
Pasador de pastilla 3
5. Instalar:
Tapón de pasador de pastilla 4
Conjunto de la bomba de freno
1. Limpiar:
Bomba de freno
Conjunto de la bomba de freno
Limpiar con líquido de frenos.
T R..18 Nm (1,8 m · kg, 13 ft · lb)
T R..3 Nm (0,3 m · kg, 2,2 ft · lb)
2. Instalar:
Cubeta (primaria) de la bomba de
freno 1
Cubeta (secundaria) de la bomba
de freno 2
Al pistón de la bomba de freno
3.
NOTA:
Aplique líquido de frenos a la cubeta de
la bomba de freno.
ADVERTENCIA
Después de instalarla, la cubeta debe
quedar en la dirección que se muestra.
Una colocación incorrecta puede alte-
rar el funcionamiento del freno.
È
Delantero
É
Trasero
3. Instalar:
Muelle 1
Al pistón de la bomba de freno
2.
NOTA:
Instale el muelle en el lado de menor diá-
metro.
È
Delantero
É
Trasero
FREIN AVANT ET FREIN ARRIERE
VORDER- UND HINTERRADBREMSEN
FRENO DELANTERO Y FRENO TRASERO

5 - 26
CHASFRONT FORK
EC550000
FRONT FORK
Extent of removal:
1 Front fork removal
Extent of removal Order Part name Q’ty Remarks
FRONT FORK 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.
Front wheel Refer to “FRONT WHEEL AND REAR
WHEEL” section.
Front caliper Refer to “FRONT BRAKE AND REAR
BRAKE” section.
Headlight
Handlebar Refer to “HANDLEBAR” section.
1 Protector 1
2 Pinch bolt (handle crown) 2 Only loosening.
3 Cap bolt 1 Loosen when disassembling the front fork.
4 Pinch bolt (under bracket) 2 Only loosening.
5 Front fork 1
1

5 - 46
CHAS
EC560000
STEERING
Extent of removal:
1 Under bracket removal
2 Bearing removal
Extent of removal Order Part name Q’ty Remarks
STEERING 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.
Headlight
Handlebar Refer to “HANDLEBAR” section.
Hose guide
Front fender
1 Multi-function meter 1
2 Multi-function meter bracket 1
3 Main switch 1 Disconnect the main switch lead.
4 Steering shaft nut 1
5 Front fork 2 Refer to “FRONT FORK” section.
6 Handle crown 1
7 Ring nut 1 Use special tool.
Refer to “REMOVAL POINTS”.
8 Under bracket 1
9 Bearing race cover 1
21
STEERING

5 - 52
CHASSWINGARM
EC570000
SWINGARM
Extent of removal:
1 Swingarm
removal
Extent of removal Order Part name Q’ty Remarks
SWINGARM 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.
Brake hose holder
Refer to “FRONT BRAKE AND REAR
BRAKE” section.
Rear caliper
Bolt (brake pedal) Shift the brake pedal backward.
Drive chain
1 Chain support 1
2 Chain tensioner (lower) 1
3 Bolt (rear shock absorber-relay
arm)1 Hold the swingarm.
4 Bolt (connecting rod) 1
5 Pivot shaft 1
6 Swingarm 1
1