Before we get into the nuts and bolts of the Honda 21-inch Variable Speed 4-in-1 Gas Walk Behind Self Propelled Lawn Mower we should point out that the model numbers HRX217VKA and HRX217K5VKA are used interchangeably by Honda to refer to this lawn mower and there do not appear to be any differences between the two. That said the best adjective to describe the HRX217VKA is powerful.
Some lawn mowers such as the Craftsman 37705 have a washout feature. It is essentially a garden hose fitting on top of the circular blade cover. This allows you to pump water into the blade assembly while running the engine. That action is designed to flush dirt and grass debris right out.
The 190 cc engine allows you to mow at a decent clip and it starts more easily and runs more efficiently than most side-valve engines. Also the rear-wheel drive makes it so you can mow inclines and hills effortlessly. There are more features than we have space to cover here but we would be remiss if we didnt touch on the Versamow system. This system allows you to choose how much grass is mulched and how much is bagged depending on your yards conditions. It also lets you shred leaves so you no longer need to use your leaf blower.