Re: 67 6hp Evinrude I guess this one is shot Home › Forum › Ask A Member › 67 6hp Evinrude I guess this one is shot › Re: 67 6hp Evinrude I guess this one is shot jcriganReplies: 533Topics: 34 March 16, 2018 at 3:41 am #72574 I have heard that soaking in boiling hot vinegar may loosen the rust. Haven’t tried this method yet.