Ran it an hour on Monday, now will not turn over. Got a new spark plug, (old one is gapped properly and looks to be in good shape) and went to Lowes to see if they had any type of replacement filter and they do not. I have a 30 mile trip to a dealer tomorrow to see if they have one but I was wondering how to clean the one I have? Any suggestions? I saw an online manual stating to clean it , but they don't say how and with what. (I do have fresh gas in it) TIA for replys.