Yamaha YFM45FAR Service Manual page 36

Stem runout limit
Valve seat width
Valve spring:
Inner spring
Free length
Set length (valve closed)
Compressed pressure
(installed)
*
Tilt limit
Direction of winding
(top view)
Outer spring
Free length
Set length (valve closed)
Compressed pressure
(installed)
MAINTENANCE SPECIFICATIONS
Item
IN
EX
IN
EX
IN
EX
IN
EX
IN
EX
IN
EX
IN
EX
IN
EX
IN
EX
Standard
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1.2 ~ 1.4 mm
(0.0472 ~ 0.0551 in)
1.2 ~ 1.4 mm
(0.0472 ~ 0.0551 in)
39.9 mm (1.57 in)
39.9 mm (1.57 in)
33.6 mm (1.32 in)
33.6 mm (1.32 in)
104.9 ~ 120.6 N (10.70 ~
12.30 kg, 23.58 ~ 27.11 lb)
104.9 ~ 120.6 N (10.70 ~
12.30 kg, 23.58 ~ 27.11 lb)
Counterclockwise
Counterclockwise
43.27 mm (1.70 in)
43.27 mm (1.70 in)
36.6 mm (1.44 in)
36.6 mm (1.44 in)
235.4 ~ 251.1 N (24.00 ~
25.60 kg, 52.91 ~ 56.45 lb)
235.4 ~ 251.1 N (24.00 ~
25.60 kg, 52.91 ~ 56.45 lb)
2 - 6
SPEC
Limit
0.01 mm
(0.0004 in)
----
----
37.9 mm
(1.49 in)
37.9 mm
(1.49 in)
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----
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2.5°/1.6 mm
(2.5°/0.06 in)
2.5°/1.6 mm
(2.5°/0.06 in)
----
----
41.27 mm
(1.62 in)
41.27 mm
(1.62 in)
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----
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