Adjusting The Front Fork Legs - Yamaha YZ450FX 2019 Owner's Service Manual

a run, relieve the front fork internal pressure.
1. Use a maintenance stand to raise the front
wheel off the ground.
EWA13120
WARNING
Securely support the vehicle so that there is
no danger of it falling over.
2. Remove the bleed screw "1" and release the
internal pressure from the front fork.
3. Tighten:
• Bleed screw
Bleed screw
1.3 N·m (0.13 kgf·m, 0.95 lb·ft)
1
EAM30239

ADJUSTING THE FRONT FORK LEGS

EWA19180
WARNING
• Always adjust the left and right front forks
evenly. If this is not done, the vehicle may
have poor stability.
• Securely support the vehicle so that there
is no danger of it falling over.
Rebound damping
ECA24340
NOTICE
Do not turn the adjuster forcibly beyond its
adjusting range.
1. Adjust:
• Rebound damping
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Turn the adjuster "1" in the direction of "a" or
"b" to make an adjustment.
Direction "a"
Rebound damping is increased (sus-
pension is harder).
Direction "b"
Rebound damping is decreased (sus-
pension is softer).
Rebound damping
Minimum (soft)
20 click(s) in direction "b"*
Standard
10 click(s) in direction "b"*
Maximum (hard)
0 click(s) in direction "b"*
* With the adjusting screw fully turned in di-
rection "a"
1 1
a a
b b
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
Compression damping
ECA24350
NOTICE
Do not turn the adjuster forcibly beyond its
adjusting range.
1. Adjust:
• Compression damping
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Turn the adjuster "1" in the direction of "a" or
"b" to make an adjustment.
Direction "a"
Compression damping is increased
(suspension is harder).
Direction "b"
Compression damping is decreased
(suspension is softer).
Compression damping
Minimum (soft)
20 click(s) in direction "b"*
Standard
11 click(s) in direction "b"*
Maximum (hard)
0 click(s) in direction "b"*
* With the adjusting screw fully turned in di-
rection "a"
3-29
CHASSIS