I have an old boat with a 1969 Johnson 115hp. What is the possibility of converting to a small I/O. I have the space and the transome to fit it. <br /><br />What is the weight difference?<br /><br />If the glassing in of the motormounts fairly straight forward?<br /><br />Any Major obstacles?<br /><br />I am just considering it. <br /><br />Let me know your pros and cons.