Yamaha SR 500 Wartungsanleitung Seite 105

Items
-1- --··- ·
(SI, (0), (N), (SW) (H), (1), (A), (G) (E), (B). (F) (OA)
r-- ·-·- - - - - - - - - - -
Dimensions:
~
1
~"0"
~~"~C"
. .1
f=-"A"
.--1
~-T
Valve head dia. (A): IN.
47 mm (1.85 in) +-
.,_
+-
EX. 39 mm (1 .54 in)
-t-
+-
+-
Valve face width (B): IN.
2.12 mm (0.0835 in) +- +- +-
EX. 2.12 mm (0.0835 in)
+- +-
+-
Valve seat width (C): IN. 1.3 mm (0.051 in)
.,_
+- +-
EX.
1.3 mm (0.051 in) +-
+-
+-
Valve margin thickness (D): IN .
1.3 mm (0.051 in) -+-
....
+-
EX. 1.3 mm (0.051 in) +-
....
+-
Valve stem outside dia.: IN.
7.97
~
7.99 mm (0 .3138- 0.3146 in)
-t-
+-
....
EX. 7.96 ~ 7.97 mm (0.3134- 0.3138 in)
+- +-
....
Valve guide ln si de dia. : IN.
8,01 - 8.02 mm (0.3154 - 0.3157 in) +- +-
~-
EX . 8.01 ""'8.02 mm (0.3154- 0.3157 in)
+-
....
....
Valve stem to guide clearance: IN. 0.02- 0.04 mm
~0.08
mmiJ>
+-
....
+-
(0.0008""' 0.0016 in <0.0031 in)>)
EX. 0.04 - 0.06 mm <0.1 mm)>
+-
~
+-
(0.0016""' 0.0024 in <0.0039 iniJ>)
1------ - - - - - - -- - --- - .. - -
Valve springs:
-- ··- · - - - - -- ---- - - - - ·-------·-+- - - ----+- - - -----J
Free length: lnner
45.3 mm -<(43.9 mm)> (1.783 in
~1.728
in}>)
+- +- +-
Outer 44.6 mm
~43.3 mm~
( 1.756 in <t1.703
in~)
+- +-
....
Spriny rate : lnner Kt = 1.67, K2
=
2.12 [kg/mm]
+- +-
....
(Kt
=
93.5, K2
=
119 [lb/in])
Outer Kt
=-
3.60, K
2
=
4.63 [kg/mm]
+- +- +-
!Kt
=
202, K
2
=
259 [lb/in])
lnstalled length (valve closed): 1 nner 38.0 mm ( 1.496 in)
+- +- +-
Outer 40.0 mm ( 1.575 in)
~ -
+-
....
lnstalled pressure (valve closed): lnner
12.2 kg (26.91b) +-
+- +-
Outer 16.4 kg (36.21b) +-
+-
+-
Compressed length (valve opèn) : lnner
28.0 mm (1.102 in)
+- +- +-
Outer JO.Omm\1.181 in)
+- +- +-
Compressed pressure (valve open): lnner 33.4 kg (73.6 lb)
+- +- +-
Outer 62 .7 kg (138.21b)
+-
~-
+-
Wire diameter: lnner 3.1 mm (0.122 in)
+- +- +-
Outer
4.4 mm (0.173 in) +-
+-
+-
102
0 .