Theis,
Have been one to point out the expediency of keeping the horse
harnessed to the cart at all times when in the barn.![]()
That is a great tip.
Now it's obvious that the french fitted zinc hiding under the cavitation plate has to be carefully connected electrically to be a working anode.
And I have written that into my Yamaha Manual. Thanks.
Would be wonderful if that alone solved your terrible corrosion problem!