Tech Tip 24 Adjusting a Zenith model 33 carburetor
Here s how to adjust these Zenith model 33 carburetors If your shop s ambient temperature is 70° simply open the choke plate 1/32″ so it is just off the choke bore If not 70° loosen the three plate screws to open the choke plate 1/32″ Then adjust for temperature by rotating the choke cover one mark per each 5° of temperature
