My folks bought this engine new in 1962 or 1963 from Sears, I believe. They remember it as being a 5 hp model.<br /><br />Model No.: J9 1106<br />Serial No.: 30620<br /><br />I would appreciate answers to the following questions. I really want to get this going again.<br /><br />1) What spark plug does this motor use?<br />2) Where can I buy a new fuel pump diaphragm? I really need this. <br />3) Can I get a new points and condensor somewhere? If so, who deals in these old parts?<br />4) The original fuel tank says to mix the oil 30:1. Should I use this mixture ratio with the new oils of today or use less oil?<br /><br />Thanks to all those who respond.