The reaction pulls the saw forward, and the operator may lose control. If you pay attention and wear the proper attire, you should be in good shape. Proper Chain SettingsYou've taken the time for the tedious task of sharpening the blade, but the darned thing still doesn't cut very well, certainly not like a new blade, although it's every bit as sharp. Check the depth gauge, that bit of upturned metal in front of each cutter. Its height controls the amount of bite the cutter takes on the wood.
Most new saws come with a depth gauge setting tool.
It fits over the cutter and fixes the depth gauge in a slot. If the depth gauge protrudes, it needs to be filed down with a flat file. Do not file the depth gauges any lower than what the setting tool indicates. Increasing the gap gives the chain more bite, but it will also increase kickback potential, sometimes dramatically. Proper settings make for efficient cutting.