I installed a Genconnex Conversion Kit, which runs the generator on propane, but the generator will no longer run on gasoline. My rationale was that my generator use would be very infrequent, and the gasoline would likely go bad. Also, I do not want to carry gasoline container in my tow vehicle. More info here. The Hutch Mountain conversion kit that John Davies’ video uses, allows use of both propane and gasoline, but here the large propane regulator remains outside of the generator, while with the Genconnex the propane regulator is inside the generator.
Be aware that power output from a generator on propane drops by 10% compared to gasoline.
Installing the Genconnex Conversion Kit was pretty easy. No drilling, just opening it up and swapping out parts. This blog post was very helpful to me, and this YouTube video less so. The blog post commented that the photos on the instruction page were quite small, and they suggested downloading the instructions and printing out enlarged photos. That was extremely helpful. It was pretty easy. I spent a couple of hours moving slowly and carefully. I took pictures of my work at every step in case something went wrong, but it all worked fine.
The Genconnex kit is set up to connect with the propane quick connects, and they do have a similar kit for the Honda 2200 model.