Re: What Carburetor do I have
Looks like a later mech sec model carb, '80's?, due to the hex head bowl screws, and idle mixture locks, see the nub molded next to the mixture screws?, for the plastic caps over the mixture screws for an emissions block, if they were installed, stamped in place air bleeds vice screw-in.
Might measure the throttle bore diameter, 1 11/16 inch dia is the base plate used for the mech series, 47XX, 650 cfm to 800 cfm, but pri venturi dia is different for all models, smaller dia, 650-600 cfm, 1.25"; 1.312" for 700-750 cfm; 1.375 in for 750 & 800 cfm; 1.562" dia for 850 cfm. Secondary diam would confirm closer cfm as sec are 1/16" larger dia.
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