1998 Johnson Evinrude "EC" 40 thru 55 2-Cylinder Service Manual, P/N 520206, Page 347Get this manual
If Boat Plate shows U .SCOAST GUARD CAPACITY INFORMATI ON MAX HP MAX PER SONS MAX WEIGHT
Or Smaller!
When Rigging or Fixing any boat if transom looks Weak, tell the owner If transom is Curved, motor may come Loose Mount on Flat Surface only Use Shims to make surface flat
Use Bolts, Nuts, and Washers sent with Motor They're usually Special won't Rust or Weaken