Ordered two carburetors for two different generators for two RVs. One of them won't work without a hard manual carb limiter, meaning it's set too rich or the jet is too big. I had to put a ball valve on the fuel supply line. The other works, but only when the engine has warmed up and the choke is fully open, otherwise it also runs too rich. This makes both cars unreliable and the repair fails overall.