2006 SD Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 100Get this manual
IGNITION SYSTEM IGNITION TESTS
Ignition Coil
Primary Resistance Test
Disconnect ignition coil lead wire connectorConnect Ohmmeter test probes to coil lead wires as shown:
Tester probe connection
Secondary Resistance Test
Remove the spark plug caps from the high-tension leadConnect Ohmmeter test probes to the high-tension leads as shown:
Tester probe connection
Probe Orange Primary ignition coil resistance: 0.2 to 0.4 n