I inherited a Johnson 5 1/2 Sea Horse and would like to know how old it is and what the oil/gasoline ratio should be. The model no. CD-17 and serial no. 294744
Yeah, What Bubbacat said, except:<br /><br />My book calls for Champion J4C plugs.<br /><br />If you get fouling after long periods of low speed, then try the J6C.<br /><br />Good luck.
