Looks like it is one of these. Mixture should be 50 to 1 Model Horse-power Serial Number Range Year <br />Merc 39 3.9 1655013 thru 2080068 1964-65-66 <br />Merc 39 3.9 2130238 thru 2498135 1967-68 <br /><br />See if you can find one of these serial numbers.<br /><br />check this web site for model info.<br /> http://www.oldmercs.com/models2.htm
Originally posted by nahlii:<br /> I have an old 3.9 hp Mercury Single motor, serial (I think) IEKRAEFFE. I know absolutely nothing about it. What gasil mixture do I use???
il mixture do I use???