Valve And Valve Springs Removal - Yamaha Scorpio Service Manual

VALVES AND VALVE SPRINGS

VALVE AND VALVE SPRINGS REMOVAL

NOTE:
Prior to remove the valves, remove the cylin-
G
der head, rocker arm and camshaft.
Before removing the internal parts (Valve,
G
valve spring, valve seat etc.) of the cylinder
head, the valve sealing should be checked.
1.Check:
Valve sealing
G
Leakage at valve seat → Inspect the valve
face, valve seat and valve seat width.
Refer to the "VALVE SEATS INSPECTION"
section.
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Valve seat checking steps:
Pour a clean solvent 1 into the intake and
G
exhaust ports.
G
Check the valve seating.
There should be no leakage at the valve seat
2.
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