I've got a pair of EU2000i's. They're about a year and a half old. Never an issue until last Saturday. I think I have it narrowed down to the vent on the fuel cap not working properly to let enough air in. Generator runs for a few minutes then sputters and kicks out (causing other one to overload and shut power down). After a few go-rounds of it doing the same thing, I loosened the fuel cap and it was fine. Anyone else ever had an issue with the vent on their Honda generator?