Yamaha 4TX-AE1, Service Manual

Page: 27 / 332

2-5
MAINTENANCE SPECIFICATIONS
SPEC
Item Standard Limit
“B” face width IN
EX
“C” seat width IN
EX
“D” margin thickness IN
EX
Stem outside diameter IN
EX
2.06 2.46 mm
2.06 2.46 mm
0.9 1.1 mm
0.9 1.1 mm
0.8 1.2 mm
0.8 1.2 mm
5.475 5.490 mm
5 460 5 475 mm
SSS
SSS
SSS
SSS
SSS
SSS
5.445 mm
5 43 mm
EX
Guide inside diameter IN
EX
Stem-to-guide clearance IN
EX
Stem runout limit
5.460 5.475 mm
5.500 5.512 mm
5.500 5.512 mm
0.010 0.037 mm
0.025 0.052 mm
SSS
5.43 mm
5.55 mm
5.55 mm
0.08 mm
0.10 mm
0.01 mm
Valve seat width IN
EX 0.9 1.1 mm
0.9 1.1 mm
1.6 mm
1.6 mm
Valve spring:
Free length IN
EX
Set length (valve closed) IN
EX
Compressed pressure
(installed)
IN
EX
Tilt li it IN
37.29 mm
37.29 mm
30.39 mm
30.39 mm
10.0 11.6 kg
10 0 11 6 k
35.2 mm
35.2 mm
SSS
SSS
SSS
Tilt limit IN
EX 10.0 11.6 kg
SSS
SSS
SSS
2.5
_
/1.7 mm
2.5
_
/1.7 mm
Direction of winding
(top view)
IN
EX Clockwise
Clockwise
SSS
SSS