1991 Johnson Evinrude EI 60 Loop V Models 150, 175 outboards Service Repair Manual P/N 507950, Page 92Get this manual

1991 Johnson Evinrude EI 60 Loop V Models 150, 175 outboards Service Repair Manual P/N 507950, Page 92

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