engine YAMAHA WR 400F 2000 Notices Demploi (in French)

YAMAHA WR 400F 2000 Notices Demploi (in French) WR 400F 2000 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52440/w960_52440-0.png YAMAHA WR 400F 2000 Notices Demploi (in French)

Page 576 of 654

YAMAHA WR 400F 2000  Notices Demploi (in French)  
6 - 2
–+ELEC
 
MAP-CONTROLLED CDI UNIT
MAP-CONTROLLED CDI UNIT 
A map-controlled, CDI ignition system is used in the WR400F.
The microcomputer in the CDI unit detects the engine speed and throttle

Page 580 of 654

YAMAHA WR 400F 2000  Notices Demploi (in French)  
6 - 3
–+ELEC
 
IGNITION SYSTEM 
EC620000 
IGNITION SYSTEM 
EC621001 
INSPECTION STEPS 
Use the following steps for checking the possibility of the malfunctioning engine being attributable to
ignit

Page 581 of 654

YAMAHA WR 400F 2000  Notices Demploi (in French) –+ELEC
 
SYSTEME D’ALLUMAGE
SYSTEME D’ALLUMAGE  
ETAPES DU CONTROLE 
Se référer au tableau suivant lors de l’inspection du système d’allumage lors de pannes.
Suivre le procédé suivant p

Page 582 of 654

YAMAHA WR 400F 2000  Notices Demploi (in French) –+ELEC
 
ZÜNDANLAGE 
ZÜNDANLAGE 
FEHLERSUCHE 
Bei der Überprüfung der Zündanlage auf mögliche Störungen ist das folgende Ablaufdiagramm zu
beachten.
Folgendes Diagramm hilft zündanlagen- und

Page 583 of 654

YAMAHA WR 400F 2000  Notices Demploi (in French) –+ELECSISTEMA DE ENCENDIDO
SISTEMA DE ENCENDIDO 
PASOS PARA LA INSPECCIÓN
Utilice los siguientes pasos para comprobar la posibilidad de un funcionamiento incorrecto del motor con res-
pecto a un fa

Page 584 of 654

YAMAHA WR 400F 2000  Notices Demploi (in French)  
6 - 4
–+ELEC
 
IGNITION SYSTEM 
EC622001 
SPARK GAP TEST 
1. Disconnect the spark plug cap from spark
plug.
2. Connect the dynamic spark tester  
1  
(ignition checker   
2  
) as shown. 
l 
Spark

Page 585 of 654

YAMAHA WR 400F 2000  Notices Demploi (in French) –+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) w

Page 590 of 654

YAMAHA WR 400F 2000  Notices Demploi (in French) 6 - 7
–+ELECTPS (THROTTLE POSITION SENSOR) SYSTEM
EC69000
TPS (THROTTLE POSITION SENSOR) SYSTEM
EC691000
INSPECTION STEPS
If the TPS will not operate, use the following inspection steps.
*marked: Re

Page 598 of 654

YAMAHA WR 400F 2000  Notices Demploi (in French) 6 - 10
–+ELECTPS (THROTTLE POSITION SENSOR) SYSTEM
6. Adjust:
lTPS coil resistance at idle speed
Adjustment steps:
Adjust the angle of the TPS 1 to obtain
the resistance calculated (example: 650 ~
7

Page 606 of 654

YAMAHA WR 400F 2000  Notices Demploi (in French)  
7 - 1
TUN
 
EC700000 
TUNING 
EC710000 
ENGINE 
Carburetor setting 
l 
The air/fuel mixture will vary depending on
atmospheric conditions. Therefore, it is nec-
essary to take into consideration the