Yamaha YZ250F(X), Руководство по эксплуатации для владельца

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