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5-70
E
POWR
VALVES AND VALVE SPRINGS
SERVICE POINTS
Valve removal
1. Remove:
• Valve lifter
1
• Valve pad
2
NOTE:
Make a note of the position of each valve lifter
and valve pad so that they can be reinstalled in
their original place.
2. Remove:
• Valve cotters
1
NOTE:
Remove the valve cotters by compressing the
valve spring with the valve spring compressor
2
and attachment
3
.
Valve spring compressor:
YM-01253/90890-04019
Valve spring compressor
attachment:
(for the intake valve)
YM-4114/90890-04114
(for the exhaust valve)
YM-4108/90890-04108
3. Remove:
• Upper spring seat
1
• Valve spring
2
• Valve
3
• Oil seal
4
• Lower spring seat
5
NOTE:
Identify the position of each part very carefully
so that it can be reinstalled in its original place.