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To test the ignition coil on a 1973 Evinrude 65 HP outboard motor, first disconnect the spark plug wires and remove the coil from the engine. Use a multimeter to measure the primary and secondary resistance: the primary should typically be around 0.5 to 1.5 ohms, while the secondary should range from 5,000 to 10,000 ohms. If the readings are outside these values, the coil may need to be replaced. Reinstall the coil and reconnect the spark plug wires, then test for spark using a spark tester if needed.

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2mo ago

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