1965 Evinrude 90 HP StarFlite Service Manual, PN 4206, Page 85Get this manual
the meter reading, then reverse the test leads, and again note meter readingAn infinite (very high) reading in both checks indicates the diode is openA zero reading in both checks indicates the diode is shortedA normal diode will show reading in one direction and no reading in the other directio"If test light is used, light should show with connections in one direction onlyRepeat the test procedure for the other diodes by connecting the test leads between the other spade terminals and heat sinksTo check field windings, disconnect the leads at the power headConnect an ohmmeter between either the red or blue lead and ground to check for shortsSee Figure 7-19An infinite (no continuity) reading indicates the windings are good, and reading of less than 5,000 ohms indicates grounded windingsConnect the ohmmeter between the red and blue leadsA reading between 1.7 and 3.1 ohms indicates the windings are goodAn infinite reading indicates the windings are open; lower reading indicates the windings are shortedTo check stator windings, disconnect the leads at the power headConnect the meter between either yellow lead and ground to check for shortsAn infinite reading indicates the windings are good, and ead ing of less than 5,000 ohms indicates the windings are groundedConnect the meter between the two yellow leadsA very low reading indicates the windings are good, and an infinite reading indicates the windings are openREPLACEMENT OF ALTERNATOR If windings are found to have failed, the stator as-