1994 Johnson/Evinrude "ER" 2 thru 8 outboards Service Manual, Page 103Get this manual
Troubleshooting Test Equipment
r:=J 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 manual
[!] Spark testers:
Stevens NoS21, S13C, or S48 Merc-O- Tronic No55-4S or 55-6S
Peak-reading voltmetersMerc-O- Tronic No781 Stevens NoCD-77 Electro-Specialties NoPRV-1