Yamaha Mark, Cowling - 6N6-42682-42-00. OEM-Exact Replacement Cowling Decal for a Clean, Professional Finish. The Yamaha - Mark, cowling - 6N6-42682-42-00 is an original Yamaha replacement decal crafted to restore the authentic factory appearance of your outboard's engine cowling. Whether you're performing cosmetic touch-ups or completing a restoration project, this high-quality decal ensures your Yamaha motor looks sharp and true to its original form.. Designed with precision to match the facto