Yamaha TW125 1999 Service Manual page 27

Item
Guide inside diameter
Stem-to-guide clearance
Stem runout limit
Valve seat width
Valve spring:
Free length (inner)
(outer)
Set length (valve closed)
(inner)
(outer)
Compressed pressure
(inner)
(outer)
Tilt limit (inner)
Tilt limit (outer)
Direction of winding (inner)
Direction of winding
Piston:
Piston to cylinder
clearance
Piston size "D"
Piston over size (1st)
Piston over size (2nd)
Measuring point "H"
Piston off-set
Piston off-set direction
Piston pin bore
inside diameter
Piston pin outside diameter
Piston rings:
Top ring:
Type
Dimensions (B
End gap (installed)
Side clearance (installed)
2nd ring:
Type
Dimensions (B
End gap (installed)
Side clearance
Oil ring:
Dimensions (B
End gap (installed)
MAINTENANCE SPECIFICATIONS
IN
EX
IN
EX
IN
EX
IN/EX
IN/EX
IN/EX
IN/EX
IN/EX
IN/EX
IN/EX
IN/EX
IN/EX
(outer) IN/EX
T)
T)
T)
Standard
6.000 X 6.012 mm
6.000 X 6.012 mm
0.010 X 0.037 mm
0.025 X 0.052 mm
SSS
0.9 X 1.1 mm
0.9 X 1.1 mm
35.5 mm
37.2 mm
30.5 mm
32.0 mm
8.4 X 10.2kg
16.6 X 20.4 kg
SSS
SSS
Clockwise
Counterclockwise
0.035 X 0.055 mm
56.960 X 56.975 mm
57.25 mm
57.50 mm
7.0 mm
0.5 mm
IN side
15.002 X 15.013 mm
14.987 X 14.992 mm
Plane
2.3 2.5 mm
0.15 X 0.35 mm
0.03 X 0.07 mm
Plane
2.3 2.5 mm
0.15 X 0.35 mm
0.02 X 0.06 mm
2.5 2.8 mm
0.3 X 0.9 mm
2-5
SPEC
Limit
6.042 mm
6.042 mm
0.08 mm
0.10 mm
0.03 mm
1.6 mm
1.6 mm
33.5 mm
35.2 mm
SSS
SSS
SSS
SSS
2.5_/1.5 mm
2.5_/1.6 mm
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
15.045 mm
14.975 mm
SSS
SSS
0.60 mm
0.15 mm
SSS
SSS
0.60 mm
0.15 mm
SSS
SSS