lock YAMAHA WR 450F 2004 Service Manual

YAMAHA WR 450F 2004 Service Manual WR 450F 2004 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52484/w960_52484-0.png YAMAHA WR 450F 2004 Service Manual

Page 347 of 754

YAMAHA WR 450F 2004 Service Manual ENG
4 - 23
ARBRES A CAMES
NOCKENWELLE
ÁRBOLES DE LEVAS
AUSBAU
Nockenwelle
1. Demontieren:
Schwungrad-Abdeckschrau-
be 1 
Rotorzapfen-Abdeckschrau-
be 2 
2. Ausrichten:
I-Markierung
(auf Gehäusema

Page 352 of 754

YAMAHA WR 450F 2004 Service Manual 4 - 26
ENGCAMSHAFTS
Decompression system
1. Check:
Decompression system
Checking steps:
Check that the decompressor cam 1
moves smoothly.
Check that the decompressor lever pin 2
projects from the c

Page 354 of 754

YAMAHA WR 450F 2004 Service Manual 4 - 27
ENGCAMSHAFTS
Fit the timing chain 3 onto both camshaft
sprockets and install the camshafts on the
cylinder head.
NOTE:
The camshafts should be installed onto the
cylinder head so that the exha

Page 356 of 754

YAMAHA WR 450F 2004 Service Manual 4 - 28
ENG
With the rod fully wound and the chain ten-
sioner UP mark a facing upward, install
the gasket 1 and the chain tensioner 2,
and tighten the bolt 3 to the specified
torque.
T R..
Bolt (timi

Page 400 of 754

YAMAHA WR 450F 2004 Service Manual 4 - 50
ENGCLUTCH
EC493000
REMOVAL POINTS
EC483211
Clutch boss
1. Remove:
Nut 1 
Lock washer 2 
Clutch boss 3 
NOTE:
Straighten the lock washer tab and use the
clutch holding tool 4 to hold the clut

Page 404 of 754

YAMAHA WR 450F 2004 Service Manual 4 - 52
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 406 of 754

YAMAHA WR 450F 2004 Service Manual 4 - 53
ENGCLUTCH
3. Bend the lock washer 1 tab.
4. Install:
Friction plate 1
Clutch plate 2
NOTE:
Install the clutch plates and friction plates
alternately on the clutch boss, starting with a
frict

Page 424 of 754

YAMAHA WR 450F 2004 Service Manual 4 - 62
ENGBALANCER
BALANCER
BALANCER
Extent of removal:1 Balancer drive gear2 Balancer
Extent of removal Order Part name Q’ty Remarks
BALANCER REMOVAL
Preparation for removal Clutch housing Refer to

Page 426 of 754

YAMAHA WR 450F 2004 Service Manual 4 - 63
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 pla

Page 427 of 754

YAMAHA WR 450F 2004 Service Manual ENG
4 - 63
BALANCIER
AUSGLEICHSWELLE
COMPENSADOR
AUSBAU
Ausgleichswellen-Antriebs- und -
Abtriebsräder
1. Die Lasche der Sicherungs-
scheibe umbiegen.
2. Lockern:
Mutter (Primärantriebsrad) 1 
Mut