Valve And Valve Spring Installation - Yamaha XVS650 Service Manual

VALVES AND VALVE SPRINGS
ENG
10.Measure:
• Valve spring free length
®
Out of specification
-7
Replace.
Free length (valve spring):
43.2 mm (1.70 in)
<Limit>: 42.0 mm (1.65 in)
302.()()5
11.Measure:
• Compressed spring force
®
Out of specification
-7
Replace.
«i)
Installed length
Compressed spring force:
21.8'" 25.6 kg at 37.1 mm
(48.1 '" 56.4 Ib at 1.46 in)
302-006
302-028
302-050
12.Measure:
• Spring tilt
®
Out of specification
-7
Replace.
Spring tilt limit:
2.5"/1.9 mm (0.074 in)
VALVE AND VALVE SPRING
INSTALLATION
1.Apply:
• Molybdenum disulfide oil
(onto the valve stem and valve stem seal)
2.lnstall:
• Valve spring seats
• Valve stem seals _
• Valves
• Valve springs
• Valve spring retainers
NOTE: _
Install the valve springs with the larger
pitch
®
facing upwards.
«i)
Smaller pitch