Yamaha YZ450F Owner's Service Manual page 76

ADJUSTING THE REAR SHOCK
ABSORBER REBOUND DAMPING
FORCE
1. Adjust:
• Rebound damping force
By turning the adjuster "1".
Stiffer "a" → Increase the re-
bound damping force. (Turn
the adjuster "1" in.)
Softer "b" → Decrease the re-
bound damping force. (Turn
the adjuster "1" out.)
Extent of adjustment:
Maximum Minimum
30 clicks out
Fully turned in
(from maximum
position
position)
• STANDARD POSITION:
This is the position which is back
by the specific number of clicks
from the fully turned-in position.
(Which align the punch mark "a"
on the adjuster with the punch
mark "b" on the bracket.)
Standard position:
About 14 clicks out
* About 16 clicks out
* Except for USA and CDN
Do not force the adjuster past the
minimum or maximum extent of
adjustment. The adjuster may be
damaged.
ADJUSTING THE REAR SHOCK
ABSORBER LOW COMPRESSION
DAMPING FORCE
1. Adjust:
• Low compression damping force
By turning the adjuster "1".
Stiffer "a" → Increase the low
compression damping force.
(Turn the adjuster "1" in.)
Softer "b" → Decrease the low
compression damping force.
(Turn the adjuster "1" out.)
Extent of adjustment:
Maximum Minimum
20 clicks out
Fully turned in
(from maximum
position
position)
• STANDARD POSITION:
This is the position which is back
by the specific number of clicks
from the fully turned-in position.
(Which align the punch mark "a"
on the adjuster with the punch
mark "b" on the high compression
damping adjuster.)
Standard position:
About 8 clicks out
* About 12 clicks out
* Except for USA and CDN
Do not force the adjuster past the
minimum or maximum extent of
adjustment. The adjuster may be
damaged.
3-20
CHASSIS
ADJUSTING THE REAR SHOCK
ABSORBER HIGH COMPRESSION
DAMPING FORCE
1. Adjust:
• High compression damping force
By turning the adjuster "1".
Stiffer "a" → Increase the high
compression damping force.
(Turn the adjuster "1" in.)
Softer "b" → Decrease the high
compression damping force.
(Turn the adjuster "1" out.)
Extent of adjustment:
Maximum Minimum
2 turns out
Fully turned in
(from maximum
position
position)
• STANDARD POSITION:
This is the position which is back
by the specific number of turns
from the fully turned-in position.
(Which align the punch mark "a"
on the adjuster with the punch
mark "b" on the adjuster body.)
Standard position:
About 1-1/4 turns out
* About 1-1/2 turns out
* Except for USA and CDN
Do not force the adjuster past the
minimum or maximum extent of
adjustment. The adjuster may be
damaged.