Master the AG Mechanics CDE 2025 – Rev Up and Rule the Field!

Question: 1 / 400

Gum deposits which clog the carburetor and other fuel system parts are caused by:

low oil levels

overheating

stale gasoline

Stale gasoline is the correct answer because when gasoline sits for an extended period of time, it begins to break down and lose its volatility. This can lead to the formation of gum deposits which can clog the carburetor and other fuel system parts. Low oil levels, overheating, and water in the fuel can all cause issues with the engine and its performance, but they are not directly related to the formation of gum deposits in the fuel system.

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water in the fuel

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