How far to go with rebuild on powerhead?

7920hpMercury

Petty Officer 2nd Class
Joined
Mar 13, 2009
Messages
111
When rebuilding powerheads (for a budget rebuild!), I usually reuse pistons/rods if pretty clean, use all new bearings and new rings and new seals.

I have also been replacing the reed valves with new ones. However, I saw somewhere here that reeds rarely go bad. Although I would think with 8 zillion vibrations, it would seem smart to replace them too.

What the best choice to get a reasonable life rebuild?

Thanks.
 
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