2002/2003 Johnson SN/ST 2 Stroke 3.5, 6 8 HP Outboards Service Manual, PN 5005466, Page 87Get this manual
IGNITION IGNITION TESTS68 Test for grounded conditionConnect ohmmeter, alternately, between each jumper and clean engine groundAdjust voltmeter to settings listed in following chartCrank engine and observe meterMeter must show at least 175 VVoltmeter
After testing Number ignition coil primary lead, test the Number ignition coil primary lead
Results: Any needle movement indicates sensor coil or leads are groundedLocate and repair ground, or replace sensor coilComplete all circuits disconnected during this test
Results: If both primary leads have good output, test ignition coilsRefer to IGNITION COIL TESTS If one primary lead has no output, replace power pack If both primary leads have no output, go to Charge Coil TestIf charge coil tests good, replace the power pack
Power Pack Running Output Test
Twist and remove primary leads from ignition coilsUse clockwise twist to install Stevens NoTS-77 terminal extenders, or equivalent, on ignition coil primary postsInstall primary leads on terminal extendersObserve proper wire routingOrangeblue primary lead must be connected to the Number ignition coil