Yamaha YZ450FT Owner's Service Manual page 300

SETTING
EC72P000
Front fork setting parts
• Adjustment washer 1
TYPE (thickness)
T = 2.3 mm (0.09 in)
• Front fork spring 2
SPRING
TYPE
RATE
0.398
0.408
SOFT 0.418
0.428
0.438
*STD 0.449
STD 0.459
0.469
STIFF
0.479
* For EUROPE
NOTE:
The I.D. mark (slits) a is proved on the end of
the spring.
EC72B000
Rear suspension setting
The rear suspension setting should be made
depending on the rider's feeling of an actual
run and the circuit conditions.
The rear suspension setting includes the fol-
lowing two factors:
1. Setting of spring preload
• Change the set length of the spring.
• Change the spring.
2. Setting of damping force
• Change the rebound damping.
• Change the compression damping.
7 - 16
T U N
PART NUMBER
1C3-23364-00
I.D.
SPRING
MARK
PART NUMBER
(slits)
1C3-23141-00 I
1C3-23141-10 II
1C3-23141-20 III
1C3-23141-30 IIII
1C3-23141-40 IIIII
5XD-23141-P0 –
5XD-23141-N0 –
1C3-23141-70 I-III
1C3-23141-80 I-IIII