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ASA Powerplant Mechanic Practice Test 2026 - Free Powerplant Mechanic Practice Questions and Study Guide Flash Cards

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What is the purpose of a cold cylinder check?

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A cold cylinder check determines which cylinder is not firing. Run the engine for a few minutes at the speed, and on the magneto, at which it runs roughest. Shut it down and feel the exhaust stack near the cylinder head. The cylinder with the stack that is not as hot as the others is the cylinder that has not been firing.

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