2006 SD Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 101Get this manual
IGNITION SYSTEM IGNITION TESTS
CDI Unit
Output Test
Disconnect pin wire harness connector form COl unitConnect pin Test Cord, PIN 5034231, between COl unit and wire harnessConnect Peak Reading Voltmeter to test cord lead wires as shownSet tester range to NEG 500
Spark Plug Cap
Resistance Test
Measure spark plug cap resistance Spark plug cap resistance:
Tester probe connection () (Red) (Black) Orange Engine Ground (Test cord wire is black)