Ratio

Quite easy to convert the Honda to gas, the engine might even be easier to work on than a generator engine. Only need to drill a little hole in the rubber boot in front of the carburetor and attach a tube to it together with the rest of the assembly used from the gas collecting apparatus. For dialing it in it might be easy to hot glue a little dial to the valve to remember where idle, turtle and hare are. Just like the generator, this one also needs to (cold) start on gasoline before switching to gas.