Spark (Spark Plug & Cable)

Connect spark plug to a high tension cable. Ensure spark plug gap is 0.039-0.043" (1.0-1.1 mm). Ground outer spark plug electrode (main body of spark plug), and crank engine. Spark should occur in discharge gap between electrodes. Also check spark plug wire resistance on suspect wires. High tension wire resistance should not exceed 16,000 ohms per 3.3 feet.