Ryobi 900 Watt Propane Generator

I purchased one of these over a year ago because I wanted a low cost not too loud unit for occasional use that did not require drainig the fuel between uses. It seems to work fine but have only used it in several loaded test runs. We have a couple of EU1000s for our extended dry camping and a couple of EU2000s for home use in case of power outages. I use Stabil marine in the fuel but do not leave fuel in the tank or carb for more than a month now. Have had to do a couple of carb jobs due to leaving fuel with stabilizer too long in the generator.