Yamaha YZ250F(S) Owner's Service Manual page 642

SETTING
EC72P000
Front fork setting parts
Adjustment washer 1
G
TYPE (thickness)
T = 2.3 mm (0.09 in)
Front fork spring 2
G
[Equal pitch spring]
SPRING
TYPE
RATE
0.398
SOFT 0.408
0.418
STD 0.428
0.438
0.449
STIFF 0.459
0.469
0.479
[Unequal pitch spring]
SPRING
TYPE RATE
(approx.)
SOFT 0.398
0.418
0.438
0.459
STIFF 0.479
NOTE:
The unequal pitch spring is softer in initial
G
characteristic than the equal pitch spring and
is difficult to bottom out under full compres-
sion.
The I.D. mark (slits) a is proved on the end
G
of the spring.
7 - 16
T U N
PART NUMBER
5XE-23364-00
I.D.
SPRING
MARK
PART NUMBER
(slits)
5XE-23141-00
5XE-23141-10
5XE-23141-20
5XC-23141-L0
5XE-23141-40 IIIII
5XE-23141-50
5XE-23141-60
5XE-23141-70 I-III
5XE-23141-80 I-IIII
I.D.
SPRING
MARK
PART NUMBER
(slits)
5XE-23141-A0
5XE-23141-B0
5XE-23141-C0 V-II
5XE-23141-D0 V-III
5XE-23141-E0 V-IIII
I
II
III
–
I-I
I-II
V
V-I