Yamaha YX600S Service Manual page 81

INSPECTION AND REPAIR
ENG
I\,~[
302-005
Valve Spring Measurement
1. Measure:
•Valve spring free length
CD
Out of specification--+ Replace.
~
Valve Spring Free Length
Inner spring Outer spring
Standard
Wear limit Standard Wear limit
35.5 mm 33.5 mm 37.2 mm
(1.398 in) (1.319 in) (1.465 in)
2. Measure:
•Valve spring installed force
CD
Out of specification--+ Replace.
35.2 mm
(1.386 in)
~
Valve Spring Installed Force
Inner spring Outer spring
® CD
®
CD
30.5 mm 9.3 kg 32.0 mm
18.5 kg
(1.20 in) (20.5 lb) (1.26 in) (40.8 lb)
~
Installed length
3-24