>Boat speedos are inaccurate, and not
>really worth fooling with. I
>used to try and keep
>mine working, but after it
>got clogged for the 3rd
>or 4th time, I just
>left it. No way I'd
>drop my lower unit to
>fix this if I were
>you. I will say that
>on my old boat the
>pickup was in the lower
>unit, and wood got packed
>into it tight so it
>was tough to unstop. I
>used a small drill bit
>by hand to work the
>wood out of it.

I agree with DH, no way would I drop a lower unit to clear a speedo hole, not worth it.