2002 YAMAHA WR 400F Owners Manual

Page 377 of 776

YAMAHA WR 400F 2002  Owners Manual ENG
4 - 17
10. Montieren:
Choke-Düse 1 
Leerlaufdüse 2 
Distanzstück 3 
Nadeldüse 4 
Hauptdüse 5 
11. Montieren:
VentilsitzSchraube (Ventilsitz) 1 Nadelventil 2 Schwimmer 3 Schwimmer-Ac

Page 378 of 776

YAMAHA WR 400F 2002  Owners Manual 4 - 18
ENGCARBURETOR
14. Install:
Diaphragm (air cut valve) 1
Spring (air cut valve) 2
O-ring 3
Air cut valve cover 4
Screw (air cut valve cover) 5
1
2
3
5
4
15. Install:
Diaphragm (accelerator

Page 379 of 776

YAMAHA WR 400F 2002  Owners Manual ENG
4 - 18
CARBURATEUR
VERGASER
CARBURADOR
14. Montieren:
Membran (Luftabschaltven-
til) 1 
Feder 2
O-Ring 3
Deckel 4
Schrauben (Deckel) 5
15. Montieren:
Membran (Beschleuni-
gungspumpe) 1
Fede

Page 380 of 776

YAMAHA WR 400F 2002  Owners Manual  
4 - 19
ENG
 
CARBURETOR 
19. Install: 
 
Carburetor breather hose   
1  
 
Refer to “CABLE ROUTING DIA-
GRAM” section in the CHAPTER 2.
NOTE:
 
Install the breather hose to the carburetor so
th

Page 381 of 776

YAMAHA WR 400F 2002  Owners Manual ENG
4 - 19
CARBURATEUR
VERGASER
CARBURADOR
19. Montieren:
Vergaser-Entlüftungs-
schlauch 1 
Siehe unter “KABELFÜH-
RUNG” im KAPITEL 2.
HINWEIS:
Den Lüftungsschlauch so in den Ver-
gaser setzen

Page 382 of 776

YAMAHA WR 400F 2002  Owners Manual 4 - 20
ENG
Carburetor installation
1. Install:
Carburetor joint 1 
NOTE:
Install the projection a on the cylinder head
between the carburetor joint slots b.
T R..3 Nm (0.3 m · kg, 2.2 ft · lb)
2. I

Page 383 of 776

YAMAHA WR 400F 2002  Owners Manual ENG
4 - 20
CARBURATEUR
VERGASER
CARBURADOR
Vergaser montieren
1. Montieren:
Vergaseranschluß 1 
HINWEIS:
Die Nase a am Zylinderkopf zwi-
schen die Nuten im Vergaseran-
schluß b ausrichten.
T R..3 N

Page 384 of 776

YAMAHA WR 400F 2002  Owners Manual  
4 - 21
ENG
 
CARBURETOR 
7. Install: 
 
Throttle cable cover   
1  
  
 
Screw (throttle cable cover)   
2  
 
NOTE:
 
Install the throttle cable cover with its pawl   
a 
hung on the carburetor.