Yamaha YZ450F 2006, Owner'S Service Manual, Page: 212 / 650

3 - 33
INSP
ADJ
FRONT FORK INSPECTION
3. Adjust:
• Drive chain slack
Drive chain slack adjustment steps:
• Loosen the axle nut
1
and locknuts
2
.
• Adjust chain slack by turning the adjusters
3
.
To tighten
→
Turn adjuster
3
counter-
clockwise.
To loosen
→
Turn adjuster
3
clockwise
and push wheel forward.
• Turn each adjuster exactly the same
amount to maintain correct axle alignment.
(There are marks
a
on each side of chain
puller alignment.)
NOTE:
Turn the adjuster so that the chain is in line
with the sprocket, as viewed from the rear.
CAUTION:
Too small chain slack will overload the
engine and other vital parts; keep the
slack within the specified limits.
• Tighten the axle nut while pushing down
the drive chain.
T
R
.
.
Axle nut:
125 Nm (12.5 m • kg, 90 ft • lb)
• Tighten the locknuts.
T
R
.
.
Locknut:
19 Nm (1.9 m • kg, 13 ft • lb)
EC36C000
FRONT FORK INSPECTION
1. Inspect:
• Front fork smooth action
Operate the front brake and stroke the
front fork.
Unsmooth action/oil leakage
→
Repair or
replace.