Yamaha WR450F(R) Owner's Service Manual page 734

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
0.380
0.390
SOFT
0.400
0.410
*STD 0.420
0.430
**STD 0.440
0.450
STD 0.460
STIFF 0.470
* For EUROPE
** For AUS, NZ and ZA
[Unequal pitch spring]
SPRING
TYPE RATE
(approx.)
SOFT 0.400
0.410
0.420
0.430
STIFF 0.440
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 - 15
T U N
PART NUMBER
4SS-23364-L0
SPRING
MARK
PART NUMBER
(slits)
4SS-23141-10
4SS-23141-20
4SS-23141-30
4SS-23141-40
4SR-23141-L0
4SS-23141-60
5NL-23141-00
5BE-23141-L0
5GR-23141-L0
5GR-23141-00
SPRING
MARK
PART NUMBER
(slits)
5ET-23141-20
5ET-23141-00
5ET-23141-30
5ET-23141-10 V-III
5ET-23141-40 V-IIII
I.D.
I-I
I-II
I-III
I
–
III
–
–
–
II-II
I.D.
V
V-I
V-II