Installing The Valves - Yamaha XV1600A1999 Service Manual

VALVES AND VALVE SPRINGS
2. Measure:
S compressed valve spring force a
b Installed length
3. Measure:
S valve spring tilt a
EAS00246

INSTALLING THE VALVES

The following procedure applies to all of the
valves and related components.
1. Deburr:
S valve stem end
5-51
Out of specification ! Replace the valve
spring.
Compressed valve spring force
(installed)
Intake and exhaust inner valve
spring
6.3 7.3 kg at 29.0 mm
Intake and exhaust outer valve
spring
13.9 16.1 kg at 31.0 mm
Out of specification ! Replace the valve
spring.
Maximum valve spring tilt
Intake and exhaust inner valve
spring
2.4 mm
Intake and exhaust outer valve
spring
2.4 mm
(with an oil stone)
ENG