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5-23
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VALVES AND VALVE SPRINGS
EAS00237
REMOVING THE VALVES
The following procedure applies to all of the
valves and related components.
TIP
Before removing the internal parts of the cylin-
der head (e.g., valves, valve springs, valve
seats), make sure the valves properly seal.
2 . Remove:
8valve cotters 1
TIP
Remove the valve cotters by compressing the
valve spring with the valve spring compressor
2 and the valve spring compressor attachment
3.
Valve spring compressor
90890-04019 (YM-04019)
Valve spring compressor attach-
ment
90890-04108 (YM-04108)
1
a
1. Check:
8valve sealing
Leakage at the valve seat J Check the
valve face, valve seat, and valve seat
width.
Refer to “CHECKING THE VALVE
SEATS”.
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a. Pour a clean solvent a into the intake and
exhaust ports.
b. Check that the valves properly seal.
TIP
There should be no leakage at the valve seat
1.
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