Honda CB450 1968 Service Manual page 85

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74
L.
Fig.
4. 20
Component ports
of
fornt fork
CD
Fork
bottom cose
®
Fork pipe
@
47 mm internal circlip
©
Spring seat
®
Front cushion spring
®
Spring guide
(V
Front fork boot
i
I
I
CD
LOAD
fig.
4. 21
CD
®
Front cushion spring measurement
Free length
loaded
length
4.
FRAME
I
$~
I
I
6.
Disass
emble
the front fork pipe assembly
by
removing the fork piston snap ring, front fork
piston. piston stopper ring. front damper valve,
front valve stopper ring, fork pipe stopper
ring,
and front fork pipe
guide,
in that order.
(Fig.
4. 20)
.
J
C.
Inspection
l.
Front cushion spring
(Fig. 4. 21)
Item
I
Standard
value
I
Serviceable
limit
Spring
load
178.5 mm
/
26.1-28
.9 kg
--
(7.03
in/
57 .5-63.7
lb)
Free
length
211.9
mm (8.3
5
inl
Replace if
under
205
mm (8.06 inl
Tilt
I
Within
1.5°
--
2.
Front fork piston
Item
I
Standard
value
Serviceable
I imit
Outside
39
.425-39
.45 mm
Replace when
diameter
(1.552-1.553
inl
less than
39.4
mm (l.551 inl
Within 0.008mm
Replace
when
Inside diameter
10.0003
inJ
more than
0.015
mm ID.0006 inl
Within
0.015 mm
Replace when
Toper
10.0059
inl
more than
0.03
mm 10.0012
in!
3.
Front fork pipe
Item
I
Standard value
I
Serviceable
limit
Outside
l
34.90-34.915mm
diameter
(1.551-1.
552
in)
0.015mm
Replace when
Elliptic wear
I0.00059 inl
more than
0.03 mm I0 .0012 inl
Within
0 .04 mm
Replace when
Denection
10.0016
in!
more
than
0 .1 mm I0 .0039 in!
4.
Front
fork pipe guide
Item
I
Standard value
I
Serviceable
limit
Full length
35.0
mm ( 1.378 inl
Inside diameter
35.0-35.039
mm
11.378-1 .380
inl
-
Outside
39 .466-39
.539
mm
diameter
11.551-1.556
inl
5.
Front fork bottom
case
Item
I
Standard value
Serviceable
limit
I .d
d'
I
39.5-39
.539mm
nsi e iometer
11.555-1.557
inl

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