When to change reed valves?

[aeomholt]

I have a 1987 115 6E5

When do the reed valves need to be changed? I dont know if mine ever have been changed.

With the carburetors off all the reeds maks a popping sound when I opens them carefully with a finger so they seems to be ok.

[boats.net]

You only have to replace them when they are bent or broken. If they are snapping shut they are ok.