1984 Johnson Evinrude 2 thru V-6 Service Repair Manual P/N 394607, Page 72Get this manual
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7075 Long Shaft and V-4 TOP OF TRANSOM
NOTE: USE TOP HOLES AND BOTTOM HOLES MARKED PRIMARY LOCATION IF TRANSOM PERMITSAS THIS IS THE MOST DESIRABLE LOCATION DUE TO INTERNAL RIBBING ON SOME BOAT