Yamaha VMX12 2001 Service Manual page 30

Item
Valve springs
Inner springs
Free length
Intake
Exhaust
Installed length (valve closed)
Intake
Exhaust
Compressed spring force (installed)
Intake
Exhaust
Spring tilt
Intake
Exhaust
Winding direction (top view)
Intake
Exhaust
Outer springs
Free length
Intake
Exhaust
Installed length (valve closed)
Intake
Exhaust
Compressed spring force (installed)
Intake
Exhaust
ENGINE SPECIFICATIONS
Standard
39.65 mm
39.65 mm
31.8 mm
31.8 mm
61.7 ~ 72.5 N (6.29 ~ 7.39 kgf)
61.7 ~ 72.5 N (6.29 ~ 7.39 kgf)
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Counterclockwise
Counterclockwise
41.1 mm
41.1 mm
33.8 mm
33.8 mm
130.4 ~ 154.0 N (13.3 ~ 15.7 kgf)
130.4 ~ 154.0 N (13.3 ~ 15.7 kgf)
2 - 6
SPEC
Limit
37.45 mm
37.45 mm
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2.5° /1.7 mm
2.5° /1.7 mm
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38.9 mm
38.9 mm
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