2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 119Get this manual
IGNITION TEST EQUIPMENT
Ignition Coil Terminal Extenders
Terminals extenders are used for power pack running output testsThey provide access for peakreading voltmeter connectionModel available: Stevens Number TS-77
Amphenol Connector Adapter
A jumper wire used for performing ignition output tests can be made locally using the following: Number 16 wirein(200 mm) length Pin, PIN 511469 Socket, PIN 581656 Shrink tube, PIN 510628