1997 "EU" Johnson Evinrude 5 thru 15 Four Stroke Service Repair Manual, P/N 507262, Page 89Get this manual
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Installation
Spark Plug, Champion
9.915 (305cc) thru 9.9 (211 cc)
RA8HC 0.04 in(1,0 mm) P10Y 0.027 in(0,7 mm)
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