Howdy Farmer.<br /><br />Welcome to iboats. <br /><br />You have a 1956 5.5hp engine.<br /><br />Fuel mix is 24:1<br />Spark plugs are Champion J6C gapped at .030" (replaced the original J6J)<br />Points are set at .020"<br /><br />You can get an aftermarket manual here: http://www.boatmotors.com/manuals.html <br /><br />Or an OEM Manual reprint from Ken Cook.<br /><br />Good luck.