2003 YAMAHA WR 450F transmission

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Page 477 of 754

YAMAHA WR 450F 2003  Manuale de Empleo (in Spanish) ENG
4 - 88
DEPOSE DU MOTEUR
MOTOR DEMONTIEREN
EXTRACCIÓN DEL MOTOR
Antriebsritzel
1. Montieren:
Antriebsritzel 1 
Antriebskette 2 
HINWEIS:
Antriebsritzel und Antriebskette
gleichzeitig montieren.

Page 482 of 754

YAMAHA WR 450F 2003  Manuale de Empleo (in Spanish) 4 - 91
ENGCRANKCASE AND CRANKSHAFT
CRANKCASE BEARING
Extent of removal:1 Crankcase bearing removal
Extent of removal Order Part name Q’ty Remarks
CRANKCASE BEARING 
REMOVAL
Preparation for removal T

Page 492 of 754

YAMAHA WR 450F 2003  Manuale de Empleo (in Spanish) 4 - 96
ENGCRANKCASE AND CRANKSHAFT
NOTE:
Hold the connecting rod at top dead center
with one hand while turning the nut of the
installing tool with the other. Operate the
installing tool until the cr

Page 494 of 754

YAMAHA WR 450F 2003  Manuale de Empleo (in Spanish) 4 - 97
ENGCRANKCASE AND CRANKSHAFT
5. Install:
Dowel pin 1 
O-ring 2 
Crankcase (right)
To crankcase (left).
NOTE:
Fit the crankcase (right) onto the crankcase
(left). Tap lightly on the case with

Page 495 of 754

YAMAHA WR 450F 2003  Manuale de Empleo (in Spanish) ENG
4 - 97 5. Montieren:
Paßstift 1 
O-Ring 2 
Kurbelgehäusehälfte
(rechts)
(auf die Kurbelgehäuse-
hälfte (links))
HINWEIS:
Die Kurbelgehäusehälfte (rechts)
auf die Kurbelgehäusehälfte (

Page 496 of 754

YAMAHA WR 450F 2003  Manuale de Empleo (in Spanish) 4 - 98
ENGTRANSMISSION, SHIFT CAM AND SHIFT FORK
TRANSMISSION, SHIFT CAM AND SHIFT FORK
TRANSMISSION, SHIFT CAM AND SHIFT FORK
Extent of removal:1 Shift fork, shift cam, main axle and drive axle remov

Page 498 of 754

YAMAHA WR 450F 2003  Manuale de Empleo (in Spanish) 4 - 99
ENGTRANSMISSION, SHIFT CAM AND SHIFT FORK
EC4H3000
REMOVAL POINTS
Shift fork, shaft cam and transmission
1. Remove:
Shift forks
Shift cam
Main axle
Drive axle
NOTE:
Tap lightly on the tran

Page 500 of 754

YAMAHA WR 450F 2003  Manuale de Empleo (in Spanish) 4 - 100
ENGTRANSMISSION, SHIFT CAM AND SHIFT FORK
EC4H4801
Shift fork, shift cam and segment
1. Inspect:
Shift fork 1 
Wear/damage/scratches → Replace.
2. Inspect:
Shift cam 1 
Segment 2 
Bend/we
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