2006 Johnson SD 3.5 HP 2 Stroke Outboard Service Manual, PN 5006562, Page 60Get this manual
IGNITION IGNITION TESTS Calibrate ohmmeter on appropriate scaleConnect meter red lead to coil primary terminalConnect meter black lead to coil spark plug terminal Meter must show 275 50 ohms
Ignition Coil Analyzer Tests IMPORTANT: When conducting these tests to
the coil, do not exceed its maximum specified amperageMagneto C.DCoil Specifications
Operating Amps (Max Analyzer Polarity
Merc-O- Tronic 1.5 amps Stevens 1.1 amps
Power Test
Test spark plug leads for continuityCalibrate ohmmeter on low ohms scaleAttach one ohmmeter lead to each spring terminalWhile wiggling both spark plug covers and entire length of the spark plug lead, the resistance should remain near zeroReplace spark plug lead if test results vary