Suzuki 2002-2005 DF4/DF5/DF6 4-Stroke Outboards Service Manual, Page 42Get this manual
IGNITION AND ELECTRICAL
INSPECTION
IGNITION SECONDARY COIL RESISTANCE Measure the secondary coil resistance in the CDIcoil unit09930-99320Digital tester Tester range(Resistance) 12Remove the spark plug cap from the high-tension cordMeasure the secondary coil resistanceTester probe connection Probe High-tension cord Other probe Core