engine YAMAHA WR 450F 2004 Owners Manual

YAMAHA WR 450F 2004 Owners Manual WR 450F 2004 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52484/w960_52484-0.png YAMAHA WR 450F 2004 Owners Manual

Page 592 of 754

YAMAHA WR 450F 2004  Owners Manual 5 - 44
CHASHANDLEBAR
8. Install:
Start switch 1 
Master cylinder 2 
Master cylinder bracket 3 
Bolt (master cylinder bracket) 4 
Clamp 5 
NOTE:
The start switch and master cylinder bracket
shoul

Page 593 of 754

YAMAHA WR 450F 2004  Owners Manual 5 - 44
CHAS
GUIDON
LENKER
MANILLAR
8. Montieren:
Startschalter 1
Hauptbremszylinder 2 
Hauptbremszylinder-Halte-
rung 3 
Schraube (Hauptbremszy-
linder-Halterung) 4 
Kabelbinder 5 
HINWEIS:
Der

Page 596 of 754

YAMAHA WR 450F 2004  Owners Manual 5 - 46
CHAS
EC560000
STEERING
Extent of removal:1 Under bracket removal2 Bearing removal
Extent of removal Order Part name Q’ty Remarks
STEERING REMOVAL
WARNINGSupport the machine securely so there

Page 608 of 754

YAMAHA WR 450F 2004  Owners Manual 5 - 52
CHASSWINGARM
EC570000
SWINGARM
Extent of removal:1 Swingarm removal
Extent of removal Order Part name Q’ty Remarks
SWINGARM REMOVAL
WARNINGSupport the machine securely so there is no
danger o

Page 624 of 754

YAMAHA WR 450F 2004  Owners Manual 5 - 60
CHASREAR SHOCK ABSORBER
EC580000
REAR SHOCK ABSORBER
Extent of removal:1 Rear shock absorber removal2 Rear shock absorber disassembly
Extent of removal Order Part name Q’ty Remarks
Preparatio

Page 642 of 754

YAMAHA WR 450F 2004  Owners Manual  
6 - 1
–+ELEC
 
ELECTRICAL COMPONENTS AND WIRING DIAGRAM 
EC600000 
ELECTRICAL 
EC610000 
ELECTRICAL COMPONENTS AND WIRING DIAGRAM 
EC611000 
ELECTRICAL COMPONENTS 
1  
Headlight  
2  
“ENGINE ST

Page 643 of 754

YAMAHA WR 450F 2004  Owners Manual –+ELEC
 
COMPOSANTS ELECTRIQUES ET SCHEMA DE CABLAGE  
ELEKTRISCHE BAUTEILE UND SCHALTPLAN  
COMPONENTES DEL SISTEMA ELÉCTRICO Y DIAGRAMA DE CABLES 
ELEKTRISCHE 
ANLAGE 
ELEKTRISCHE BAUTEI-
LE UND

Page 644 of 754

YAMAHA WR 450F 2004  Owners Manual –+ELEC
 
6 - 2 
MAP-CONTROLLED CDI UNIT
MAP-CONTROLLED CDI UNIT 
A map-controlled, CDI ignition system is used in the WR450F.
The microcomputer in the CDI unit detects the engine speed and throttle

Page 648 of 754

YAMAHA WR 450F 2004  Owners Manual –+ELEC
 
6 - 3 
IGNITION SYSTEM 
EC620000 
IGNITION SYSTEM 
INSPECTION STEPS 
Use the following steps for checking the possibility of the malfunctioning engine being attributable to
ignition system

Page 649 of 754

YAMAHA WR 450F 2004  Owners Manual –+ELECSYSTEME D’ALLUMAGE
SYSTEME D’ALLUMAGE 
ETAPES DU CONTROLE
Suivre le procédé suivant pour déterminer si le mauvais fonctionnement du moteur est dû à une panne dans le
circuit d’allum