hsr-benelli S-series Service Manual page 56

WARNING:
Always use new gaskets and oil seals.
Mount the rubber valve seal (2) with the appropriate pad (3).
ATTENTION:
Intake valves are larger than the exhaust valves.
Insert the valves (4).
Position the internal (5) and external (6) springs as shown in
the figure.
Insert the two lock cones (7) into the upper small cup (8).
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