1998 Johnson Evinrude "EC" 9.9 thru 30 HP 2-Cylinder Outboards Service Repair Manual P/N 520204, Page 326Get this manual
Quality of the image is intentionally reduced!
If Boat Plate shows U.SCOAST GUARO
If owner tells you "1 hit something really hard
High speed blow to lower unit or, "1 was backing up think motor may havi hit the tree or so