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Valve Head Thickness Inspection; Valve Stem Bend Inspection; Valve Stem Diameter Inspection; Valve Guide Inside Diameter Inspection - Kawasaki KLX110 Service Manual

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4-24 ENGINE TOP END
Valve/Valve Guide

Valve Head Thickness Inspection

Measure the thickness of valve head.
Valve Head Thickness [A]
Inlet valve:
Standard:
Service Limit:
Exhaust valve:
Standard:
Service Limit:
If it is under the service limit, replace the valve.

Valve Stem Bend Inspection

Support the valve at both ends of the straight stem portion, and set
a dial gauge against the center of the stem.
Turn the valve and read the variation in the dial gauge [A].
Valve Stem Bend
Standard:
Service Limit:
If it is bent over the service limit, replace the valve.

Valve Stem Diameter Inspection

Measure the diameter of the valve stem.
Valve Stem Diameter [A]
Inlet valve:
Standard:
Service Limit:
Exhaust valve:
Standard:
Service Limit:
Replace the valve if the stem is worn to less than the service limit.

Valve Guide Inside Diameter Inspection

If a small bore gauge and micrometer are available, measure the
valve guide as follows.
Measure the inside diameter [A] of the valve guide. Since the guide
wears unevenly, measure the diameter at four place up and down the
guide.
Valve Guide Inside Diameter (Inlet and Exhaust)
Standard:
Service Limit:
If any measurement exceeds the service limit, replace the valve guide.
0.85
1.15 mm
0.5 mm
1.15
1.45 mm
0.5 mm
TIR 0.01 mm or less
TIR 0.05 mm
4.475
4.490 mm
4.46 mm
4.462
4.472 mm
4.44 mm
4.500
4.512 mm
4.55 mm

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