The 7021R walk-behind mower is powered by the innovative Honda GCV 160 engine. Its Auto Return Choke engineering means less opportunity for flooding and easier starting. A 21 deck that is capable of mulching, side discharge, or bagging gives you the versatility to change the mowing technique based on conditions or desires. AutoWalk self-propelled rear wheel drive system is activated by simply squeezing the trigger on the handlebar.