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Carburetor numbers: 800S, 800SA, 801S, 801SA, 802S, 802SA, 803S, 803SA, 2726S, 2727S, 2728S, 2729S
Flange Size: (800S, SA 801S, SA) 1", (802S, SA, 803S, SA, 2728S, 2729S) 3/4"
Throttle Bore: 1 1/16"
Main Venturi: (801S, SA, 803S, SA, 2727S, 2729S) 21/32", (800S, SA, 802S, SA, 2726S, 2728S) 23/32"
Float Setting: 11/64"
With throttle body inverted and gasket removed, there should be (the clearance indicated above) between machined surface of throttle body and seam of float. Measure both sides and make them the same.
Set throttle lever adjusting screw until motor runs approximately 400 RPM. Then set idle adjustment screw for highest steady vacuum gauge reading or smoothest engine operation. Correct setting will be found between 1/4 to 1 1/2 turns open.
Adjustable, maximum mixture usually obtained with 3 turns open.
