Buildup of sap on the blades, insufficient set, dullness, and unguided cuts, can all cause an over heated blade and kickback. Minimize blade pinching by placing the saw shoe on the clamped, supportedportion of the work piece and allowing the cut off piece to fall away freely.Click to see full answer. Similarly one may ask, why does my circular saw kick back at the end of a cut?Kickback happens when the saw blade binds or stalls suddenly in the wood and the saw gets driven back toward you. So the key to preventing this is to make sure your blade doesn’t bind in the wood. Make sure you’re using sharp blades and never force the saw through the cut.Secondly, what is circular saw kickback? A kickback happens when you saw a piece of wood and suddenly the blade binds or the board that you are cutting bows downward, this will pinch the blade, the blade will suddenly stop and the circular saw will be left off and come back in your direction. Regarding this, why does my circular saw not cut straight? If you are struggling with the circular saw to cut straight line on the wood, at first, look at your workpiece. So, if you find out that your saw is okay and the problem is with your unstable wooden piece, just have a set of hold down clamp. It will lay hold on the workpiece with the table to make it stable.What causes saw kickback? Reasons for kickback A common reason kickback occurs is tension in a board. As the wood is cut, the tension keeps the kerf from fully opening. This causes the end of the cut to pinch together trapping the blade (as in the sketch below) and the wood comes at you with incredible speed.