This particular conversion kit from Hutch Mountain is for the Honda EU2200i. They also have other kits for different models of Honda generators to allow them to operate on gasoline, propane or LP gas. The LP gas conversion requires the installation of an included jet into the carburetor, but for propane/gasoline use, only one part is installed and no disassembly of the carb is required.
Total time for the mod is about 30 minutes and requires a drill, a stepper bit (or a 9/16th" bit) two wrenches, a screwdriver and a 9mm socket. Instructions are clearly written on good quality paper with plenty of photos.
Hutch Mountain also offers various accessories and I ordered the components needed to hook the modified Honda to my RV's propane port (a 10-foot hose and a 3/4 to 1/2 inch adapter, all with quick-connect fittings.
My Honda EU2200i is brand new but I ran it on gas for two hours prior to performing this mod. This is because propane lacks the lubricants necessary for a new engine's piston rings to properly seat.
I'm quite happy with the engine's performance after having completed the mod. The exhaust is almost odorless, the engine should remain much cleaner internally and the fuel used is now consistant with what I'll have with me on camping trips.