Is your battery brand new and your lawn mower OHV engine not turning all the over? Does your mower engine only makes a half a turn then stops? Before you run out and buy a new mower or take your mower into a repair shop, watch this video. In this video, I show you how to quickly and easily adjust the valves on any small engine with an OHV - using what I call the "one up - one down" approach. It's very simple to do with a only a few tools. Why bother to pay to get the job done when you can DIYOneforAll.