A simple answer to a long problem: Buy a solid state rectifier/regulator
intended for an old motorcycle.

Thanks Dan,
As I stated in the first thread I know I could do that. I know I could get a
regulator kit from OMC or West Marine to do this too.
BUT....
I really want to know how this thing is defying physics and everything I was
ever taught about electricity.
It should be ruining stuff like the battery and electronics and its not. I can
afford the regulator easy but I want to know...
Why did it work perfectly for so many years and just change? If this were not
such a simple system I would buy the regulator and forget it.
I cant find ONE article doing a google search where someone has found out why
or how these old outboards are doing this.
16 volts should be frying stuff, even at 5 amps.
By the way, just curious again... what motor did you put that regulator on?
If anyone else has an outboard doing this I would like to know the brand and
horsepower.

Thanks!!