Yamaha YZ 2023 Series Owner's Service Manual page 163

(to the outer tube)
TIP
Press the slide metal into the outer tube with fork
seal driver "3".
Fork seal driver
90890-01502
Fork seal driver (48)
YM-A0948
1
2
18.Install:
• Oil seal "1"
New
TIP
Using a fork seal driver "2", press the oil seal in
until the stopper ring groove fully appears.
Fork seal driver
90890-01502
Fork seal driver (48)
YM-A0948
New
4-49
19.Install:
• Stopper ring "1"
TIP
Fit the stopper ring correctly in the groove in the
outer tube.
20.Install:
• Scraper "1"
• Dust seal "2"
New
TIP
Apply lithium-soap-based grease on the inner
tube.
21.Check:
• Inner tube smooth movement
Tightness/binding/rough spots  Repeat the
steps (14) to (20).
22.Measure:
• Distance "a"
Out of specification  Turn the locknut to
specification.
FRONT FORK