Chrysler 70, 75 and 85 HP Outboard Motors Service Manual OB 3438, Page 105Get this manual
7Place probe on red terminal(f)of ignition switch Tester lights, proceed to 8No light indicates defective wire in harness connecting accessory terminal block to ignition switch8Place probe on yellow terminalof ignition switch, turn ignition switch to "start" Tester lights, proceed to 9Tester does not light, see Test #1 ignition switch, Section 4B 14Place probe on starter side terminal of starter relay Tester lights, proceed to 15Tester does not light, see starter relay section for testing 15Place probe on red terminal of starter motorTester lights, starter motor defectiveSee starter motor section for testing
The following tests through 15 must be made with ignition switch in the start "position"9Place probe on yellow terminalof accessory terminal block Tester lights, proceed to 10No light indicates defective wire in harness between switch and accessory terminal block 10Place probe on yellow terminal of engine terminal block Tester lights, proceed to 11 No light indicates defective wire in electrical control cable