YAMAHA WR 450F 2006 Owners Manual

YAMAHA WR 450F 2006 Owners Manual WR 450F 2006 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52482/w960_52482-0.png YAMAHA WR 450F 2006 Owners Manual
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Page 341 of 786

YAMAHA WR 450F 2006  Owners Manual ENG
4 - 12
Nadelventil
1. Kontrollieren:
Nadelventil 
1 
Ventilsitz 
2 
Riefig 
a 
→ Erneuern.
Verstaubt 
b 
→ Reinigen.
Filter 
c 
Verstopft 
→ Reinigen.
Drosselklappe
1. Kontrollieren:
Lei

Page 342 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 13
ENGCARBURETOR
Measurement and adjustment steps:
Hold the carburetor in an upside down
position.
NOTE:
Slowly tilt the carburetor in the opposite
direction, then take the measurement
when the

Page 343 of 786

YAMAHA WR 450F 2006  Owners Manual ENG
4 - 13
Arbeitsvorgang:
Den Vergaser auf den Kopf
stellen.
HINWEIS:
Den Vergaser langsam
umschwenken und die Mes-
sung vornehmen, wenn das
Nadelventil und der Schimmer-
hebel fluchten.
Bei waage

Page 344 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 14
ENG
Accelerator pump
1. Inspect:
Diaphragm (accelerator pump) 1 
Spring 2 
Cover 3 
O-ring 4 
Push rod 5 
Tears (diaphragm)/damage → Replace.
Dirt → Clean.
2. Inspect:
Throttle shaft

Page 345 of 786

YAMAHA WR 450F 2006  Owners Manual ENG
4 - 14
Beschleunigungspumpe
1. Kontrollieren:
Membran (Beschleunigungs-
pumpe) 
1 
Feder 
2 
Abdeckung 
3 
O-Ring 
4 
Druckstange 
5 
Rissig (Membran)/beschädigt
→ Erneuern.
Verunreinigt

Page 346 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 15
ENGCARBURETOR
3. Install:
Spring 1 1 
Lever 1 2 
To lever 2 3.
NOTE:
Make sure the spring 1 fits on the stopper a of
the lever 2.
a
31
2
4. Install:
Spring 2 1 
To lever 2 2.
1
2
5. Install:

Page 347 of 786

YAMAHA WR 450F 2006  Owners Manual ENG
4 - 15
3. Montieren:
Feder 1 
1 
Hebel 1 
2 
(am Hebel 2 
3)
HINWEIS:
Die Feder 1 muss sich am Anschlag
a von Hebel 2 befinden.
4. Montieren:
Feder 2 
1 
(am Hebel 2 
2)
5. Montieren:
Drucksta

Page 348 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 16
ENGCARBURETOR
8. Install:
Throttle shaft assembly 1 
Plain washer (metal) 2 
Plain washer (resin) 3 
Valve lever 4 
NOTE:
Apply the fluorochemical grease on the bear-
ings.
Fit the projec

Page 349 of 786

YAMAHA WR 450F 2006  Owners Manual ENG
4 - 16
8. Montieren:
Drosselklappenwelle 
1 
Metall-Beilagscheibe 
2 
Kunstharz-Beilagscheibe 
3 
Drosselklappe 
4 
HINWEIS:
Die Lager mit fluoriertem Schmier-
fett bestreichen.
Die Haltenas

Page 350 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 17
ENGCARBURETOR
11. Install:
Needle valve 1 
Float 2 
Float pin 3 
NOTE:
After installing the needle valve to the float,
install them to the carburetor.
Check the float for smooth movement.
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