My neighbor is in the military and he is deployed. His wife cuts their grass with the lawn boy. She came over last week and asked me to look at her mower becuase it would not start. She said the last time she used it it worked fine. But when she went to start it, it only turns over. I went and bought a new plug, (its getting a spark), I removed the air filter, and even drained the gas and put in new gas. I even tried spraying a tiny bit of starter fliud in it. I just cant get it to fire. It turns over just never sounds like it wants to start. Any help is appreciated. (I am NO mechanic, just trying to help my neighbor)