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Recently bought a replacement carb for my 6.75 Quantum on a Toro. It has the auto choke feature which is working as it should. But I noticed that it takes more pulls to get the engine started. Then I noticed that the choke plate is, for lack of a better term, partial (on left). Other Quantum carbs I have owned or have seen online are more or less "full" (on right). Wonder why some Briggs carbs have one vs. the other? A video I watched speculated that the partial plate is used on engines with electric/battery start. Maybe these engines spin faster on startup (I don't own one); thus they need less choke. Here's they both are:

Now I'm not going to sleep at night......

One lets more air in to atomize the fuel, other less air. Nothing to stop eating over.

one was picked before it matured.