Spark Indicating Device for the Bendix 1200 series mag 4 cylinder. Purchase will also include the adapter for rotating the magneto.
The device allows the testing of the magneto without the need for a stand alone magneto test bench. The device can be used at the work bench after working on the magneto and it can be used while the magneto is still on the engine. This can save hours of labor and reduce the need to send out the magneto for a simple bech test.
Proper use can aid in diagnosing ignition issues without removing the magneto.
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