1988 Johnson Evinrude "CC" 9.9 thru 30 Service Manual, P/N 507660, Page 132Get this manual
Troubleshooting Test Equipment
1Spark Tester Stevens Model S21 or 13C
Merc-O- Tronic Model 55 -4S or 55-6S
2C.DVoltmeter Stevens Model CD77
Merc-O- Tronic Model 781
Electro-Specialties Model
3Ohmmetercapable of indicating low ohms (Rx1) and high ohms (Rx1 0,000)
4 Jumper wires (four required)jumper leads can be made L!J as shown :