I successfully converted a Yamaha 2800 inverter style generator to natural gas last year (after Ike). I bought the generator and then bought a "tri-fuel" conversion kit from UScarburation along with a 12' hose. Per their recommendation, I ran a few gallons of gas through it first to seat in the piston rings, then drained the gas tank and put on the conversion parts. Installation was very straighforward. I had to mess with a little adjustment screw in the kit a little to get the right flow of gas, but then it seemed to run just fine. I hooked it up to my outdoor fridge just to make sure it would take a load properly.
I stubbed out a natural gas pipe on the outside of my house, put a shutoff valve in it and then plugged it for safety. I have a union to attach the hose so that it doesn't have to be twisted to hookup.
oh, the other thing I got with the generator was a RPM gage, so I would know that the generator was still running the same RPM's with the gas and the natural gas, with loads, etc.
Now that I am prepared I will probably not get the chance to use it, but it was tiresome being without power for 2 wks after Ike.
the reason I got an "inverter" style generator is because it produces cleaner power and will not damage electronics (allegedly).
Last edited by sammytx; 06-08-2010 at 12:12 PM.
Reason: added info