1993 Johnson Evinrude "ET" 90 degrees LV Service Repair Manual, P/N 508287, Page 122Get this manual

1993 Johnson Evinrude "ET" 90 degrees LV Service Repair Manual, P/N 508287, Page 122

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Spark Plug Information The spark plugs should be removed and examinedA spark plug should be replaced if the electrodes are badly worn, if it has cracked insulator, or is badly fouledBefore installing