Yamaha YZ450F(Y Owner's Manual Page 186

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Adjusting the rebound damping will
be followed more or less by a change
in the compression damping. For cor-
rection, turn the low compression
damping adjuster on the softer side.
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.
Length "a" of standard
shock:
490 mm (19.29 in)
REAR SHOCK ABSORBER
SETTING PARTS
• Rear shock spring "1"
[Equal-pitch titanium spring]
SPRI
SPRING
NG
PART
TYPE
RAT
NUMBER
E
(-22212-)
4.5
1C3-00
4.7
1C3-10
4.9
1C3-20
SOFT
5.1
1C3-30
5.3
1C3-40
SPRI
NG
TYPE
RAT
STD
5.5
STIFF
5.7
[Equal-pitch steel spring]
SPRI
TYPE
RAT
[Unequal-pitch steel spring]
SPRI
RAT
TYPE
prox.
SOFT
I.D.
MARK
Green/1
STIFF
Green/2
Green/3
Red/1
Install the spring seat "2" to the ti-
Red/2
tanium spring.
Red/3
Black/1
• The unequal-pitch spring is softer in
initial characteristic than the equal-
Black/2
pitch spring and is difficult to bottom
Black/3
out under full compression.
Blue/1
• The I.D. mark "a" is marked at the
end of the spring.
Blue/2
• Spring specification varies accord-
Blue/3
ing to the color and quantity of I.D.
marks.
Yellow/
1
Yellow/
2
Yellow/
3
SPRING
PART
I.D.
NUMBER
MARK
E
(-22212-)
Pink/1
1C3-50
Pink/2
(1C3-B0)
Pink/3
White/1
1C3-60
White/2
White/3
SPRING
PART
I.D.
NG
NUM-
MARK/
BER
Q'TY
E
(-22212-)
4.3
5UN-00
Brown/1
NG
SPRING
PART
I.D.
E
NUM-
MARK/
(ap-
BER
Q'TY
(-22212-)
)
4.5
5UN-A0
Green/2
4.7
5UN-B0
Red/2
4.9
5UN-C0
Black/2
5.1
5UN-D0
Blue/2
Yellow/
5.3
5UN-E0
2
5.5
5UN-F0
Pink/2
5.7
5UN-G0
White/2
7-8
CHASSIS
• Extent of adjustment (spring pre-
load)
Maximum
Minimum
Position in
Position in
which the
which the
spring is turned
spring is turned
in 13 mm (0.51
in 1.5 mm (0.06
in) from its free
in) from its free
length.
length.
• For the spring preload adjustment,
refer to "ADJUSTING THE REAR
SHOCK ABSORBER SPRING
PRELOAD" in the CHAPTER 3.
• Preload adjusting extent is the
same for the titanium and steel
springs.

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  • nick Jan 26, 2016 10:47:
    The download is jacked up, so it's only really viewable on the site, but can't really complain since it's free.