engine YAMAHA WR 400F 2002 Notices Demploi (in French)

YAMAHA WR 400F 2002 Notices Demploi (in French) WR 400F 2002 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52438/w960_52438-0.png YAMAHA WR 400F 2002 Notices Demploi (in French)

Page 644 of 776

YAMAHA WR 400F 2002  Notices Demploi (in French) 5 - 45
CHASHANDLEBAR
8. Install:
Master cylinder 1 
Master cylinder bracket 2 
Bolt (master cylinder bracket) 3 
NOTE:
Install the bracket so that the arrow mark a
faces upward.
First tighten the

Page 645 of 776

YAMAHA WR 400F 2002  Notices Demploi (in French) 5 - 45
CHAS
GUIDON
LENKER
MANILLAR
8. Montieren:
Hauptbremszylinder 1 
Hauptbremszylinder-Halte-
rung 2 
Schraube (Hauptbremszy-
linder-Halterung) 3 
HINWEIS:
Die Halterung mit nach oben ge-
richt

Page 648 of 776

YAMAHA WR 400F 2002  Notices Demploi (in French) 5 - 47
CHAS
EC560000
STEERING
Extent of removal:1 Under bracket removal2 Bearing removal
Extent of removal Order Part name Q’ty Remarks
STEERING REMOVAL
WARNING
Support the machine securely so there

Page 660 of 776

YAMAHA WR 400F 2002  Notices Demploi (in French) 5 - 53
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 no
danger

Page 674 of 776

YAMAHA WR 400F 2002  Notices Demploi (in French) 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 690 of 776

YAMAHA WR 400F 2002  Notices Demploi (in French) 6 - 1
–+ELECELECTRICAL COMPONENTS AND WIRING DIAGRAM
EC600000
ELECTRICAL
EC610000
ELECTRICAL COMPONENTS AND WIRING DIAGRAM
EC611000
ELECTRICAL COMPONENTS
1Headlight
2“ENGINE STOP” button
3Regula

Page 691 of 776

YAMAHA WR 400F 2002  Notices Demploi (in French) –+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 SCHALTPL

Page 692 of 776

YAMAHA WR 400F 2002  Notices Demploi (in French) 6 - 2
–+ELECMAP-CONTROLLED CDI UNIT
MAP-CONTROLLED CDI UNIT
A map-controlled, CDI ignition system is used in the WR426F/WR400F.
The microcomputer in the CDI unit detects the engine speed and throttl

Page 696 of 776

YAMAHA WR 400F 2002  Notices Demploi (in French) 6 - 3
–+ELECIGNITION SYSTEM
EC620000
IGNITION SYSTEM
INSPECTION STEPS
Use the following steps for checking the possibility of the malfunctioning engine being attributable to
ignition system failure

Page 697 of 776

YAMAHA WR 400F 2002  Notices Demploi (in French) –+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