It is that simple on a Nexgen, but of course different wiring
, I only bring that up to illustrate it is that simple.
Of course if your 230V 50 Hz and rewire to 115V, you will still be 50 Hz, so I assume an RPM
May help if you state the manufacturer and model number, you may find someone that has already done this.
Grounds on a boat
are treated differently than in a house, I'm not proficient enough to discuss, I'm a read and follow instructions guy myself.