Yamaha YZ450F, Owner'S Service Manual

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5 - 35
CHAS
FRONT FORK
9. Check that the damper assembly is fully
stretched. Not fully stretched
→
Repeat the
steps 2 to 8.
10. Tighten:
• Base valve
1
NOTE:
Hold the damper assembly with the cap bolt
ring wrench
2
and use the cap bolt wrench
3
to tighten the base valve with specified torque.
Cap bolt wrench:
YM-01500/90890-01500
Cap bolt ring wrench:
YM-01501/90890-01501
T
R
.
.
29 Nm (2.9 m · kg, 21 ft · lb)
11. After filling, pump the damper assembly
1
slowly up and down more than 10 times to
distribute the fork oil.
12. While protecting the damper assembly
1
with a rag and compressing fully, allow
excessive oil to overflow on the base valve
side.
CAUTION:
Take care not to damage the damper
assembly.
13. Allow the overflowing oil to escape at the
hole
a
in the damper assembly.