Most have been switched over to a rural commune water system that needs grid power the fishmox is probably made three to four thousand miles away with no or slow shipping after a world war happens. Those little golf carts need fuel and they are probably not a flex fuel vehicle so that you could possibly use alcohol from a still and the still is going to take up a lot of time that you would need for trying to get food.
Since alcohol requires a richer air to fuel ratio, it's necessary to bore out the main jet orifice when using ethanol fuel. The increase will be on the order of 20 to 40 percent.
To do the conversion you will need a screwdriver, wrenches, vise-grip pliers, a putty knife, a pair of needle-nose pliers, and an electric hand drill with bits obviously.
Keep in mind that removing a carburetor involves dealing with gaskets. Unless you planned ahead and have spare gaskets or have some brand of gasket in a tube for high temperature uses then you are possibly going to end up with an engine that doesn't run.. on alcohol OR gasoline.
In order to take the carburetor apart, you'll first have to remove its air filter housing and all its hoses, tubes, and paraphernalia from the engine. If you need instructions on this then you probably shouldn't be attempting this anyway. This article assumes you have the knowledge and engine experience to remove a carburetor.