1990 Johnson Evinrude "ES" 9.9 thru 30 Service Repair Manual, P/N 507871, Page 135Get this manual
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Powerhead Servicing, 9.9 thru 15 Remova9.9, 15
5 Remove the stop switch and ignition module ground leads
from the ignition coil mounting screw6 Separate the stop switch 1-pin Amphen