Yamaha YZ250 2021, Owner'S Manual

Page: 89 / 148

FRONT FORK
4-17
5. Tighten:
• Locknut “1”
TIP
Fully finger tighten the locknut onto the damper
assembly.
6. Loosen:
• Compression damping force adjuster “1”
TIP
•
Before loosening the damping force adjuster,
record the setting position.
•
Unless the damping force adjuster is fully loos-
ened, correct damping characteristic cannot be
obtained after installation.
7. Install:
•
Base valve “1”
(to the damper assembly “2”)
TIP
First bring the damper rod pressure to a maxi-
mum. Then install the base valve while releasing
the damper rod pressure.
8. Check:
•
Damper assembly
Not fully stretched

Repeat the steps (1) to
(7).
9. Tighten:
•
Base valve “1”
TIP
Hold the damper assembly with the cap bolt ring
wrench “2” and use the cap bolt wrench “3” to
tighten the base valve.
Standard oil level
145–148 mm (5.71–5.83 in)
From top of fully stretched
damper assembly.
a
Base valve (front fork)
29 N·m (2.9 kgf·m, 21 lb·ft)
Cap bolt wrench
90890-01500
Cap bolt wrench
YM-01500
Cap bolt ring wrench
90890-01501
Cap bolt ring wrench
YM-01501
1
2
T
R
.
.