Yamaha YZ125X 2023 Owner's Manual page 138

[Unequal-pitch steel spring]
Spring
Type rate
(N/mm)
SOFT 44
46
48
50
52
54
STIFF 56
TIP
• The unequal-pitch spring is softer in initial char-
acteristic than the equal-pitch spring and is dif-
ficult to bottom out under full compression.
• The I.D. mark "a" is marked at the end of the
spring.
• Spring specification varies according to the
color and quantity of I.D. marks.
• Spring preload adjusting positions
I.D.
Part number
mark/Q'ty
5UN-22212-A0
Green/2
(Silver)
5UN-22212-B0
Red/2
(Silver)
5UN-22212-C0
Black/2
(Silver)
5UN-22212-D0
Blue/2
(Silver)
5UN-22212-E0
Yellow/2
(Silver)
5UN-22212-F0
Pink/2
(Silver)
5UN-22212-G0
White/2
(Silver)
Spring preload adjusting positions
Minimum
Position in which the spring is
turned in 1.5 mm (0.06 in) from
its free length.
Standard
Position in which the spring is
turned in 4.0 mm (0.16 in) from
its free length.
Maximum
Position in which the spring is
turned in 18.5 mm (0.73 in) from
its free length.
TIP
For the spring preload adjustment, refer to "AD-
JUSTING THE REAR SHOCK ABSORBER AS-
SEMBLY" on page 3-20.
8-13
CHASSIS