Magneto Checks

You're not just verifying that the mags are working: you're also checking the entire ignition system.

Performing a magneto check during the before-takeoff checklist is a time-honored task for those of us flying with spark-ignition (gasoline-fueled) piston engines. The idea is to check their health, both individually and by comparing them to each other. The checklists typically call for noting the rpm drop but engine roughness also is something that should […]
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