Gasoline stored in a generator in an unvented locker just seems like a really bad idea. Carburetors can leak. So can hoses. It doesn't happen often but, when gasoline fumes are in the bilge
and something sparks ... boom.
I'm assuming this is not to run AC, which would require a substantial store of gasoline and create another problem. If you're using the generator to top up batteries
at anchor, the other posters are correct: solar is a much better solution.
I have two Renogy 160-watt panels
controller feeding 440 amps of golf-cart batteries
. They can supply close to 20 amps an hour on a sunny day in Florida
with the batteries partly drained. They can reach 10 even on cloudy days.
I run a refrigerator
24/7, have a TV and use the usual collection of computers
, instruments, radios, etc. Without motoring, the batteries are close to a full charge by early afternoon on a reasonably sunny day.
Considering how long it takes to get a battery
bank near 100 percent, even with a large 110-volt charger
, you're going to run that Honda for many hours to match what solar panels
I built a frame of SS tubing on my stern rail and bimini
behind the boom. The cost for all solar and structural equipment
was less than 1K, and the structural and wiring work
took a good part of a day. Not a big deal.