What tool is typically used to clear a clogged pilot assembly orifice?

The tool that is typically used to clear a clogged pilot assembly orifice is an awl. An awl is a pointed tool that can be easily inserted into small openings, making it effective for dislodging debris or blockages without damaging the orifice itself. This precision is crucial, as pilot assemblies are designed to have very specific dimensions and any alteration could impact the performance of the pilot light.

Using an awl allows a technician to gently probe into the orifice without the risk of oversize damage that could come from using tools like drills, which are inappropriate for such small and delicate openings. While a wire brush can be useful for cleaning surfaces, it would not fit into the orifice and could also risk leaving behind bristles or debris. A vacuum cleaner, while effective at removing loose debris, may not produce the direct mechanical action needed to clear blockages that are firmly lodged inside the orifice. Thus, an awl is the most appropriate and effective tool for this specific task.