Yamaha Scorpio Service Manual page 22

Model
Value dimensions:
A
"A" head dia.
"B" face width
"C" seat width
"D" margin thickness
Stem outside dia.
Guide inside dia.
Stem-to-guide clearance
Stem runout limit
Valve spring:
Free length lnner
Outer
Set length (valve closed)
lnner
Outer
Compressed pressure (installed)
Inner
Outer
MAINTENANCE SPECIFICATIONS
B
IN. 33.9 ~ 34.1 mm
EX. 28.4 ~ 28.6 mm
IN. 2.26 mm
EX. 2.26 mm
IN. 0.9 ~ 1.1 mm
EX. 0.9 ~ 1.1 mm
IN. 0.8 ~ 1.2 mm
EX. 0.8 ~ 1.2 mm
IN. 5.975 ~ 5.990 mm
EX. 5.960 ~ 5.975 mm
IN. 6.000 ~ 6.012 mm
EX. 6.000 ~ 6.012 mm
IN. 0.010 ~ 0.037 mm
EX. 0.025 ~ 0.052 mm
<0.03 mm>
IN. 36.17 mm
EX. 36.17 mm
IN 36.63 mm
EX. 36.63 mm
IN. 30.5 mm
EX. 30.5 mm
IN. 32 mm
EX. 32 mm
IN. 7.65 ~ 9.35 kg
EX. 7.65 ~ 9.35 kg
IN. 13.1 ~ 16.1 kg
EX. 13.1 ~ 16.1 kg
2 - 5
SPEC
SX-4
C
D