Don the picture shows the same engine but they are selling the LF152F-3Q which is a side valve.Mine is is the LF152.One member already purchased one and found out that the Q3 is a side valve.here is that engine new $119.00. allso did you mill the head to rase compression?
link. http://www.homedepot.com/webapp/wcs...321&cj=true&srccode=cii_13736960#.USjS9JFtx4I
Don P
Its Otto, and yes it was 79cc.And its only 79cc or so? Ask Otero,member here on forum.