1989 Johnson Evinrude "CE" 9.9 thru 30 Service Manual, P/N 507754, Page 291Get this manual
Key Switch Check
Ohmmeter [IQJ 1Disconnect battery leads and leads at the key switch
2With key switch in "OFF" position, connect continuity light or meter leads between key switch "8AIT" and "A" terminalsLight or meter should not show continuityTurn key switch to "ON" position Light or meter should show continuity