How can I find out what size and year of my evinrude speed twin. It was on a 14-15 runabout.<br />were should I look for the serial or model number on the motor. The top cover only has Speed Twin on it.<br />I look a another post and it looks similar to the big twin 40 in this picture.<br /> http://mitglied.lycos.de/old_omc/e_1968/seite_10_11.jpg <br />Thanks for your help.<br />Shawn