There have been previous threads about this subject. I have no idea what that id means or what size generator you have or if it is gas or diesel
In short air cooled generators are really not suitable for marine
use (not talking about the Yamaha/Honda gasoline gens. here). They are noisy and you will never be able to get them to run quietly. You will drive both yourself and your neighbors in an anchorage crazy. The exhaust
is hot so you have to ensure some way of insulating/cooling the exhaust.
My advice is to sell it and replace it with either a small portable on deck
(Honda etc.) gas gen. being aware of and taking precautions for carbon monoxide. Or install a proper below decks gen.