2004 YAMAHA YZ450F lock

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Page 380 of 642

YAMAHA YZ450F 2004  Owners Manual 4 - 71
ENGKICK AXLE AND SHIFT SHAFT
REMOVAL POINTS
EC4B3101
Kick axle assembly
1. Remove:
Kick axle assembly 1 
NOTE:
Unhook the torsion spring 2 from the hole a
in the crankcase.
EC4C3101
Shift guid

Page 388 of 642

YAMAHA YZ450F 2004  Owners Manual 4 - 75
ENGKICK AXLE AND SHIFT SHAFT
3. Install:
Spring guide 1 
NOTE:
Slide the spring guide into the kick axle, make
sure the groove a in the spring guide fits on
the stopper of the torsion spring.

Page 392 of 642

YAMAHA YZ450F 2004  Owners Manual 4 - 77
ENGCDI MAGNETO
EC4L3000
REMOVAL POINTS
EC4L3101
Rotor
1. Remove:
Nut (rotor) 1 
Plain washer
Use the rotor holding tool 2.
2. Remove:
Rotor 1 
Use the flywheel puller 2.
NOTE:
When installin

Page 400 of 642

YAMAHA YZ450F 2004  Owners Manual 4 - 81
ENGENGINE REMOVAL
Extent of removal:1 Engine removal
Extent of removal Order Part name Q’ty Remarks
1 Engine skid plate (front) 1
2 Neutral switch 1
3 Oil hose 2
4 Chain cover 1
5 Nut (drive

Page 402 of 642

YAMAHA YZ450F 2004  Owners Manual 4 - 82
ENGENGINE REMOVAL
EC4M3000
REMOVAL POINTS
EC4F3100
Drive sprocket
1. Remove:
Nut (drive sprocket) 1 
Lock washer 2 
NOTE:
Straighten the lock washer tab.
Loosen the nut while applying the r

Page 403 of 642

YAMAHA YZ450F 2004  Owners Manual 4 - 82
ENG
DEPOSE DU MOTEUR
MOTOR DEMONTIEREN
AUSBAU
Antriebsritzel
1. Demontieren:
Mutter (Antriebsritzel) 1 
Sicherungsscheibe 2 
HINWEIS:
Die Lasche der Sicherungsscheibe umbiegen.
Beim Lockern

Page 406 of 642

YAMAHA YZ450F 2004  Owners Manual 4 - 84
ENGENGINE REMOVAL
2. Install:
Lock washer 1 
Nut (drive sprocket) 2 
NOTE:
Tighten the nut while applying the rear brake.
New
T R..75 Nm (7.5 m · kg, 54 ft · lb)
3. Bend the lock washer tab

Page 415 of 642

YAMAHA YZ450F 2004  Owners Manual 4 - 88
ENG
CARTER ET VILEBREQUIN
KURBELGEHÄUSE UND KURBELWELLE
AUSBAU
Kurbelgehäuse
1. Trennen:
Kurbelgehäusehälfte (rechts)
Kurbelgehäusehälfte (links)
Arbeitsschritte:
Kurbelgehäuse-Schrau