1988 Johnson Evinrude "CC" 9.9 thru 30 Service Repair Manual, P/N 507660, Page 124Get this manual

1988 Johnson Evinrude "CC" 9.9 thru 30 Service Repair Manual, P/N 507660, Page 124

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Spark Plug Informat ion The spark plugs should be removed and examinedThe spark plugs should be replaced if the electrodes are badly worn, have cracked insulator, or are badly fouled Before installing

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