1998 Johnson Evinrude EC 50 thru 70 HP 3-Cylinder Service Manual, Page 112Get 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, S13C, or S48 Merc-O- Tronic No55-4S or 55-6S
rn Peak-readingTronic No781 voltmeters: Merc-O Stevens NoCO-77 Electro-Specialties LoPRV-1
rn Ohmmeter capableNo700 VOAlow and high ranges: of reading Merc-O- Tronic
Stevens NoAT-101
INote Component temperature