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2. Measure:
• compressed valve spring force
a
Out of specification
→
Replace the valve
spring.
b
Installed length
Compressed valve spring force
(installed)
Intake and exhaust inner valve
spring
76 ~ 88 N
(7.80 ~ 9.00 kg, 17.20 ~ 19.85 lb)
at 30.10 mm (1.19 in)
Intake and exhaust outer valve
spring
115 ~ 133 N
(11.73 ~ 13.56 kg,
25.85 ~ 29.90 lb) at 31.60 mm
(1.24 in)
3. Measure:
• valve spring tilt
a
Out of specification
→
Replace the valve
spring.
Valve spring tilt limit
Intake and exhaust inner valve
spring
2.5°/1.7 mm (0.067 in)
Intake and exhaust outer valve
spring
2.5°/1.6 mm (0.063 in)
EAS00245
INSTALLING THE VALVES
The following procedure applies to all of the
valves and related components.
1. Deburr:
• valve stem end
(with an oil stone)
Содержание YP250R 2005
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