Coleman Maxa ER Plus 4,000 watts and 5,000 surge watts generator. It was running but I decided that it would run a little better if my friend and I cleaned the carburetor. After cleaning the carburetor, we could not get it to start. Likely, we got the two adjustment screws set wrong, but we aren't mechanically inclined enough to know how to adjust it. It should be an easy fix for someone knowledgeable about small engines.