Chrysler 100, 115 and 140 HP Outboard Motors Service Manual, OB 3439, Page 77Get this manual
wise Turn indicator knob to full clockwise position so that mark on knob is at100" setting Test reading values shown with respective voltage are the minimum values for C-O units
When indicator knob is at full clockwise positionmark on knob must line up with100" mark on coverIf notadjust knob CycleTEST" button tester "up and downto simulate breaker point action (approximately 2-3 times per second) while SLOWLY turning indictor knob down scale until indicator light on tester goes on OReset indicator circuit by pressing '''R ESET'' button Indicator light should go outG lf values are lower than what is shown abovereposition smallGROUND" lead wire of tester from power head directly to C-O nit Be certai to scratch through paint on C-O unit with lead wire clip Repeat test as outlined in steps through FIf values remain the same, consider C-O unit as defective and replace itIf values increase to minimum values or aboveCD unit is not properly grounded Correct this condition and re-check unit withGROUNDlead wire of tester back on power head as outlined in steps through F