1978 Evinrude Outboards 9.9/15HP Service Manual, Page 34Get this manual
1M-90 2S-80adapter 3stevens CD-77 tester
4Electro Specialties Model PRV-1
Figure 4-6Ignition Testers dJumper Wires (4 required)Jumper leads can be made as shown in Figure -7
No16 wire, inches (200 mm) long Pin OMC Part No 511469 Socket OMC Part No581656 Tubing OMC Part No510628 one inch (25 mm) long
1Four wire connector 2Three wire connector 3Connector retainer