Yamaha YZ250FX 2022 Owner's Service Manual page 159

4. Check:
• Damper assembly "1"
Bend/damage  Replace.
• O-ring "2"
Wear/damage  Replace.
ECA14200
NOTICE
• The front fork leg has a built-in damper ad-
justing rod and a very sophisticated inter-
nal construction, which are particularly
sensitive to foreign material.
• When disassembling and assembling the
front fork leg, do not allow any foreign ma-
terial to enter the front fork.
2
5. Check:
• Base valve "1"
Wear/damage  Replace.
Contamination  Clean.
• O-ring "2"
Wear/damage  Replace.
• Base valve bushing
Wear/damage  Replace.
• Fork spring "3"
Damage/fatigue  Replace the base valve.
• Bleed screw "4"
Wear/damage  Replace.
6. Check:
• Upper spring seat "1"
(contacting surface "a")
Wear/damage  Replace.
7. Check:
• Adjuster "1"
• O-ring "2"
Wear/damage  Replace.
1
8. Check:
• Scraper "1"
Damage  Replace.
4-45
FRONT FORK
2
3
4
2
1
a
1
1
1
2