Hi all, I too have had this problem. I fixed it via a rebuild kit, or so I thought. I turn key and hear the hum or the new pump. Hit the start button, she turns over and over.. nada! Turn it off, and on again, hear the hum, hit start and it does not start. Sounds like it is not firing. I did change the air filter while I had her top off.... any ideas? I walked away after put it on the battery tender. I am gonna try it again tomorrow... see if a weak battery was the culprit.