Re: 1925 Johnson A-25 Home › Forum › Ask A Member › 1925 Johnson A-25 › Re: 1925 Johnson A-25 MumblesReplies: 5764Topics: 298 March 12, 2018 at 5:51 am #72394 The operators manual says there should be two nuts, a flat one and a locking acorn nut. Attachments: