2003 Johnson ST 6/8 HP 4 Stroke Outboards Service Repair Manual, PN 5005471, Page 248Get this manual
Quality of the image is intentionally reduced!
Running motors too fast (Overspeeding)
Spraying cleaners and paints
Chiseling
Tip: When steel on steel, use plastic- or brass-type hammersThey don't Chip off as easily