I would gradually, till just enough, richen the idle “circuitry” till that sneezing disappears. I’m running a 750 DP with no choke and have absolutely no snorting, coughing, sneezing issues on even the coldest mornings (SC mornings are likely colder than California) I’d bet your just a wee bit lean on things, and could sneak up on it till it disappeared without fouling :eek: up how it’s dialed in, raw gas etc burning eyes etc.
