Hi<br />I have just bought a boat with a spare Johnson 18 Seahorse, model No FD-14 (1960 I assume), no manual of course, does any one know the spark plugs type and gap, also the fuel mixture.<br /> <br />Thank you in anticipation<br /> <br />David
gwyldwr <br /><br />Use Champion spark plug J4C Gapped at .030. Use oil/fuel mixture at 24:1 Ratio or 5.2 ounces TCW-3 oil per gallon of gas. It is a 1960 Model<br /><br /> More info:<br /><br />web page