I am missing carb. cover on my 81 90hp evinrude found a 78 85hp evinrude cover part# 323487. I cannot find my part # for the 90hp. Will this one work on mine? Thank's for the help.
Yes, both years show PN 0389094 in the BRP site catalog. The pn you provided however comes up as an o-ring. Double check and verify this is in fact the correct part, and you should be good.
Use the BRP manufacturer site for good easy part look up and cross ref.