1990 Johnson Evinrude "ES" Colt/Junior thru 8 Service Manual, P/N 507870, Page 98Get 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 manual
[TI Spark testers
Stevens NoS21, S13C, or S48 Mercotronic No55-4S or 55-6S
Peak-reading voltmeters Mercotronic No781 Stevens NoCO-77 Electro-Specialties NoPRV-1 Ohmmeter capable of reading low (RxO.1), medium (Rx100), and high (Rx10K) ranges Mercotronic No700 VOA Stevens NoAT-101 Component temperature can affect resistance values at rate of 10 ohms per FAll resistance values listed in this manual are correct at room temperature (70 For 21 C)Ignition module load adapter Stevens NoPL-88 Ignition coil terminal extenders Stevens NoTS-77 Jumper wire for Amphenol connectorsCan be made with: No16 wire, in(200 mm) Pin, OMC PIN 511469 Socket, OMC PIN 581656 Shrink tube, OMC PIN 510628