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Pictures of a Double Venturi Throttle Plate

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  • Pictures of a Double Venturi Throttle Plate

    I got an email from someone wanting to see pictures of the throttle plate for a double venturi carb. Notice the plate just has a Z in a small circle. My single venturi Zenith has 18 1/2 stamped in the throttle plate. The double venturi has a 20 degree bevel on the throttle plate edge, which of course must taper to straight sides near the throttle shaft area.

    My choke plate has rust pits, and a small hole, so I'll replace that. When you install the throttle plate, leave the screws a bit loose, then snap the plate shut a few times to make sure it's completely settled into it's fully closed position, then hold it closed as you tighten the 2 screws.

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