I've had 2 of these Champion generators with a parallel kit for a month now. This past weekend I had problems with one of the generators starting. There was a great deal of resistance on the pull start, and I couldn't start it as a result. The 2nd generator has the burping issue that's been described here. I wound up returning both generators because of the issues. The units paralleled ran my 13,500 AC unit fine at 6,000 feet elevation. They would not run both the AC and microwave at the same time with eco mode off. I was considering returning the generators because of the burping issues; the last issue with pull start problems was enough to convince me to return them. These were the Red color with a build date of March 2011.
