1989 Johnson Evinrude "CE" 9.9 thru 30 Service Manual, P/N 507754, Page 113Get this manual
Troubleshooting Test Equipment
The following equipment is available from various manufacturers to support your ignition and electrical system troubleshootingManufacturer ordering addresses are on the rear .inside cover of this manualSpark testers Stevens NoS21, 13C, or S48 Mercotronic No55-4S or 55-6S Peak-reading voltmeters Mercotronic No781 Stevens NoCD-77 Electro-Specialties NoPRV-1
141, -16305 1
Ohmmeter capable of reading low (RxO.1), medium (Rx100), and high (Rx10K) ranges Mercotronic No700 VOA Stevens NoAT-101