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MAINTENANCE SPECIFICATIONS
SPEC
Item Standard Limit
Stem-to-guide clearance IN
EX
Stem runout limit
Valve seat width IN
EX
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
0.08 mm
0.1 mm
0.01 mm
1.6 mm
1.6 mm
Valve spring:
Free length (Inner) IN/EX
Free length (Outer) IN/EX
Set length (valve closed) (Inner) IN/EX
Set length (valve closed) (Outer) IN/EX
Compressed pressure (Inner) IN/EX
(Outer) IN/EX
Tilt limit (Inner) IN/EX
Tilt limit (Outer) IN/EX
38.1 mm
36.93 mm
30.1 mm
31.6 mm
7.8 X 9.0 kg
37.22 X 42.83 kg
SSS
SSS
36.1 mm
35.0 mm
SSS
SSS
SSS
SSS
2.5_/1.7 mm
2.5_/1.7 mm
Piston:
Piston to cylinder
clearance
Piston size “D”
Measuring point “H”
Piston pin bore
inside diameter
Piston pin outside diameter
0.02 X 0.04 mm
68.965 X 68.980 mm
5 mm
17.004 X 17.015 mm
16.991 X 17.000 mm
0.15 mm
SSS
SSS
17.045 mm
16.975 mm
Piston rings:
Top ring:
Type
End gap (installed)
Side clearance (installed)
2nd ring:
Type
End gap (installed)
Side clearance
Oil ring:
End gap (installed)
Barrel
0.15 X 0.30 mm
0.04 X 0.08 mm
Taper
0.30 X 0.45 mm
0.03 X 0.07 mm
0.2 X 0.7 mm
SSS
0.45 mm
0.12 mm
SSS
0.7 mm
0.12 mm
SSS
Crankshaft:
Crank width “A”
Runout limit “C”
Big end side clearance “D”
59.95 X 60.00 mm
0.03 mm
0.35 X 0.85 mm
SSS
SSS
SSS