Yamaha YZ450F Manuel D'atelier Du Proprietaire page 636

SETTING
EC72Q000
Rear shock absorber setting parts
• Rear shock spring 1
[Equal pitch spring]
TYPE SPRING
RATE PART NUMBER
4.3
4.5
SOFT
4.7
4.9
*STD 5.1
STD 5.3
5.5
STIFF
5.7
*For EUROPE
[Unequal pitch spring]
SPRING
TYPE RATE
PART NUMBER
(approx.)
SOFT 4.5
4.7
4.9
5.1
5.3
5.5
STIFF 5.7
NOTE:
• The unequal pitch spring is softer in initial
characteristic than the equal pitch spring and
is difficult to bottom out under full compres-
sion.
• The I.D. color a is marked at the end of the
spring.
• Extent of adjustment (spring length)
SPRING FREE
LENGTH
260 mm (10.24 in)
275 mm (10.83 in)
7 - 19
T U N
I.D.
SPRING
COLOR/
POINT
5UN-22212-00 Brown/1
5UN-22212-10 Green/1
5UN-22212-20 Red/1
5UN-22212-30 Black/1
5UN-22212-40 Blue/1
5UN-22212-50 Yellow/1
5UN-22212-60 Pink/1
5UN-22212-70 White/1
I.D.
SPRING
COLOR/
POINT
5UN-22212-A0 Green/2
5UN-22212-B0 Red/2
5UN-22212-C0 Black/2
5UN-22212-D0 Blue/2
5UN-22212-E0 Yellow/2
5UN-22212-F0 Pink/2
5UN-22212-G0 White/2
EXTENT OF
ADJUSTMENT b
240.5 ~ 258.5 mm
(9.47 ~ 10.18 in)
255.5 ~ 273.5 mm
(10.06 ~ 10.77 in)
SPRING
FREE
LENGTH
260
260
260
260
260
260
260
260
SPRING
FREE
LENGTH
275
275
275
275
275
275
275