Yamaha XVS6501997 - Valve and Valve Spring Installation

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VALVES AND VALVE SPRINGS
ENG
NOTE:
10. Measure:
S Valve spring free length
a
Out of specification  Replace.
Free length (valve spring):
43.2 mm
<Limit>: 42.0 mm
11. Measure:
S Compressed spring force
a
Out of specification  Replace.
b
Installed length
Compressed spring force:
21.8  25.6 kg at 37.1 mm
12. Measure:
S Spring tilt
a
Out of specification  Replace.
Spring tilt limit:
2.5_ /1.9 mm
VALVE AND VALVE SPRING INSTALLATION
1. Apply:
S Molybdenum disulfide oil
(onto the valve stem and valve stem seal)
2. Install:
S Valve spring seats
S Valve stem seals
S Valves
S Valve springs
S Valve spring retainers
Install the valve springs with the larger pitch
a
facing upwards.
b
Smaller pitch