new spark plug/ empty the tank. put new fule in, make sure the fule is turned on,, try to start it with the air filter off, till you get it it running for a wile, if there is a choke on it turn it off after it kicks and make sure its off when running, its very easy to flood it when trying to start it , if things are not right, and is you do flood it, keep pulling the cord with the mower off, to dry out out the spark plug, then turn it on and try it again,
h, April 2015