Yamaha YZ450FA Automobile User Manual


 
5-29
FRONT FORK
7. Loosen:
• Compression damping adjuster "1"
• Loosen the compression damping adjuster
finger tight.
• Record the set position of the adjuster (the
amount of turning out the fully turned in posi-
tion).
8. Install:
• Base valve "1"
To damper assembly "2".
First bring the damper rod pressure to a maxi-
mum. Then install the base valve while releas-
ing the damper rod pressure.
9. Check:
• Damper assembly
Not fully stretched Repeat the steps 2 to
8.
10.Tighten:
• Base valve "1"
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.
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 ex-
cessive oil to overflow on the base valve
side.
Take care not to damage the damper assem-
bly.
Base valve:
29 Nm (2.9 m•kg, 21 ft• lb)
Cap bolt wrench:
YM-01500/90890-01500
Cap bolt ring wrench:
YM-01501/90890-01501