Yamaha YZ450F 2008 Manuel D'atelier Du Proprietaire page 183

does not exceed the standard as it
may result in faulty performance.
Never use one whose overall
length is greater than standard.
Length "a" of standard
shock:
490 mm (19.29 in)
REAR SHOCK ABSORBER
SETTING PARTS
• Rear shock spring "1"
[Equal-pitch titanium spring]
SPRING
T SPRI
PART
Y NG I.D.
NUM-
P RAT MARK
BER
E E
(-22212-)
4.5 1C3-00 Green
S
4.7 1C3-10 Red
O
4.9 1C3-20 Black
F
5.1 1C3-30 Blue
T
5.3 1C3-40 Yellow
S
1C3-50
T 5.5 Pink
(1C3-B0)
D
S
TI
5.7 1C3-60 White
F
F
[Equal-pitch steel spring]
SPRING
T SPRI
PART I.D.
Y NG
NUM- MARK/
P RAT
BER Q'TY
E E
(-22212-)
4.3 5UN-00 Brown/1 260
[Unequal-pitch steel spring]
SPRI
NG SPRING
T
RAT PART
Y
E NUM-
P
(ap- BER
E
prox. (-22212-)
)
S
O
4.5 5UN-A0
F
T
4.7 5UN-B0
4.9 5UN-C0
5.1 5UN-D0
5.3 5UN-E0
5.5 5UN-F0
S
SPR
TI
5.7 5UN-G0
ING
F
FRE
F
E
LEN
GTH
Install the spring seat "2" to the ti-
(ap-
tanium spring.
prox
.)
265
• The unequal-pitch spring is softer in
initial characteristic than the equal-
265
pitch spring and is difficult to bottom
265
out under full compression.
265
• The I.D. mark "a" is marked at the
end of the spring.
275
• Spring specification varies accord-
ing to the color and quantity of I.D.
275
marks.
275
SPR
ING
FRE
E
LEN
GTH
• Extent of adjustment (spring length)
SPR
ING
I.D.
FRE
MARK/
E
Q'TY
LEN
GTH
Green/2 275
Red/2 275
Black/2 275
Blue/2 275
Yellow/
275
2
Pink/2 275
White/2 275
7-8
CHASSIS
[Titanium spring]
SPRING
EXTENT OF AD-
FREE
JUSTMENT "b"
LENGTH
One I.D. mark
245.5–263.5 mm
(9.67–10.37 in)
Two I.D. marks
Approx.
265 mm
251.5–269.5 mm
(10.43 in)
(9.90–10.61 in)
Three I.D. marks
243.0–261.0 mm
(9.57–10.28 in)
One I.D. mark
255.5–273.5 mm
(10.06–10.77 in)
Two I.D. marks
Approx.
275 mm
261.5–279.5 mm
(10.83 in)
(10.30–11.00 in)
Three I.D. marks
253.0–271.0 mm
(9.96–10.67 in)
[Steel spring]
SPRING
EXTENT OF AD-
FREE
JUSTMENT "b"
LENGTH
260 mm 240.5–258.5 mm
(10.24 in) (9.47–10.18 in)
275 mm 255.5–273.5 mm
(10.83 in) (10.06–10.77 in)