Yamaha YZ450FX 2023, Owner'S Manual

Page: 105 / 164

FRONT FORK
4-23
27.Measure:
•
Gap “a” between the adjuster “1” and the
locknut “2”
Out of specification

Retighten and readjust
the locknut.
TIP
If it is installed with a gap out of specification,
correct damping force cannot be obtained.
28.Tighten:
• Adjuster (damper assembly) “1”
TIP
Hold the locknut “2” and tighten the adjuster.
29.Install:
•
Adjuster “1”
(to the inner tube)
30.Fill:
•
Front fork leg
NOTICE
ECA24570
• Be sure to use the recommended oil. Other
oils may have an adverse effect on front
fork performance.
• When disassembling and assembling the
front fork leg, do not allow any foreign ma-
terial to enter the front fork.
31.Install:
• Damper assembly “1”
(to the outer tube)
TIP
Temporarily tighten the damper assembly.
Gap “a” between the adjuster and
the locknut
0.5–1.0 mm (0.02–0.04 in)
Adjuster (damper assembly)
29 N·m (2.9 kgf·m, 21 lb·ft)
1
2
a
T
R
.
.
Adjuster
55 N·m (5.5 kgf·m, 41 lb·ft)
LOCTITE®
Recommended oil
Yamaha Suspension Oil S1
Standard oil amount
290 cm³ (9.80 US oz, 10.23
Imp.oz)
Extent of adjustment
260–365 cm³ (8.79–12.34 US oz,
9.17–12.87 Imp.oz)
T
R
.
.
1