The Zenith Model 69 is a Zenith size 12 (SAE throttle bore size 1-1/2" nominal") updraft carburetor with a double venturi and twin floats. Bodies are cast iron. The carburetor uses a vacuum-operated accelerator pump. These carburetors were used on John Deere, Waukesha and White tractors.
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How to find Zenith carburetor numbers