2006 YAMAHA WR 450F lock

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Page 339 of 786

YAMAHA WR 450F 2006  Owners Manual ENG
4 - 11
HANDHABUNGSHINWEISE
ACHTUNG:
Die Drosselklappensensor-Schrau-
ben 1 dürfen nicht gelockert wer-
den, außer wenn der
Drosselklappensensor zu erneuern
ist aufgrund von Fehlern, weil er
die

Page 366 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 25
ENGCAMSHAFTS
REMOVAL POINTS
Camshaft
1. Remove:
Timing plug 1 
Straight plug 2 
2. Align:
“I” mark
With stationary pointer.
Checking steps:
Turn the crankshaft counterclockwise with
a w

Page 367 of 786

YAMAHA WR 450F 2006  Owners Manual ENG
4 - 25
DEMONTAGE-EINZELHEITEN
Nockenwelle
1. Demontieren:
Rotor-Abdeckschraube 
1 
Kurbelwellen-Abdeck-
schraube 
2 
2. Ausrichten:
I-Markierung
(auf die Gegenmarkierung)
Arbeitsvorgang:
Die K

Page 372 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 28
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 374 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 29
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 376 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 30
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 420 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 52
ENGCLUTCH
Extent of removal Order Part name Q’ty Remarks
12 Clutch plate 7
13 Friction plate 8
14 Nut 1
Use special tool.
Refer to “REMOVAL POINTS”. 15 Lock washer 1
16 Clutch boss 1
17 T

Page 422 of 786

YAMAHA WR 450F 2006  Owners Manual 4 - 53
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