You are ok with an anode on the motor, but be sure to add at least 1 to the
hull. 2 would be better. Make sure they are the correct type for freshwater.
Since you keep the boat on a trailer, and use it only in freshwater, I don't
think either electrolysis or galvanic corrosion will be a major factor in
your boat's lifespan. A couple of good coats of wax each season will be more
benefit.

I would electrically bond everything, especially energy using devices'
(lights, radios, fishfinders, ect.) mountings with a separate copper
"ground" wire terminating at the (-) pole of the battery(s). This will give
your devices their best performance and eliminate hot spots in the hull.

Replace freshwater anodes every 24 - 36 months even if they "look ok".

--
Capt. Frank

__c
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"CCred68046" wrote in message
...
My outboard has an anode built into the lower unit and it looks fine, is
this
enough or should I add one to be safe?