Chrysler 70, 75 and 85 HP Outboard Motors Service Manual OB 3438, Page 75Get this manual
CCycleTEST" button on testerup and down" to simulate breaker point action (approximately 2-3 times per second) while SLOWLY turning indicator knob down scale until indicator light on tester goes on DReset indicator circuit by pressingRESET" button Indicator light should go out Test reading values shown with respective voltage are the minimum values for C-D units
Glf values are lower than what is shown above, reposition small "GROUND" lead wire of tester from power head directly to C-D unitBe certain to scratch through paint on C-D unit with lead wire clip Repeat test as outlined in steps through FIf values remain the same, consider C-D unit as defective and replace itIf values increase to minimum values or aboveCD unit is not properly groundedCorrect this condition and re-check unit withGROUND" lead wire of tester back on power head as outlined in steps through F
If indicator light does not go out after pressingRESET" buttonproceed no further C-D unit is self-triggering and should be replaced ECycle test button minimum of timesIndicator light must go on every timeIf lightdoes notgo on every timeC-D unit is intermittent and must be replaced FReturn indicator knob back to "100" setting and repeat test as outlined in steps through EReadings should repeat within pointsCompare readings with chart below