2006 YAMAHA WR 450F lock

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Page 426 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 55
ENGCLUTCH
EC4A5000
ASSEMBLY AND INSTALLATION
Push lever
1. Install:
Push lever 1 
Bolt (push lever)
NOTE:
Apply the lithium soap base grease on the oil
seal lip.
Apply the engine oil on the

Page 428 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 56
ENGCLUTCH
3. Bend the lock washer 1 tab.
4. Install:
Friction plate 1 
Clutch plate 1 
[t = 2.0 mm (0.079 in)] 2 
Clutch plate 2 
[t = 1.6 mm (0.063 in)] 3 
NOTE:
Install the clutch plates

Page 446 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 65
ENGBALANCER
BALANCER
BALANCER
Extent of removal:
1 Balancer drive gear
2 Balancer
Extent of removal Order Part name Q’ty Remarks
BALANCER REMOVAL
Preparation for removal Clutch housing Refer

Page 448 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 66
ENGBALANCER
REMOVAL POINTS
Balancer drive gear and balancer driven 
gear
1. Straighten the lock washer tab.
2. Loosen:
Nut (primary drive gear) 1 
Nut (balancer) 2 
NOTE:
Place an aluminum pl

Page 449 of 786

YAMAHA WR 450F 2006  Owners Manual ENG
4 - 66
DEMONTAGE-EINZELHEITEN
Ausgleichswellen-Antriebsritzel 
und -rad
1. Die Lasche der Sicherungs-
scheibe umbiegen.
2. Lockern:
Primärantriebsritzel-Mutter 
1 
Ausgleichswellen-Mutter 
2 
H

Page 450 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 67
ENGBALANCER
ASSEMBLY AND INSTALLATION
Balancer, balancer drive gear and balancer 
driven gear
1. Install:
Balancer 1 
NOTE:
When installing the balancer shaft, align the
center of the balancer

Page 464 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 74
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 465 of 786

YAMAHA WR 450F 2006  Owners Manual ENG
4 - 74
DEMONTAGE-EINZELHEITEN
Kickhebelwelle komplett
1. Demontieren:
Kickhebelwelle komplett 
1 
HINWEIS:
Die Torsionsfeder 
2 aus der Boh-
rung 
a im Kurbelgehäuse lösen.
Schaltführung und S