I own a 2007 Riding Lawn mower its a 13a1762f729 unit I believe it has a briggs engine .Its same as a Yard machine unit. I tryed to start my riding mower it would turn over, but it wont start .I never had a problem with it. I have checked for wires chewed ok changed the gas blew out Filter .checked the fusse- ok cleaned the carb bowl out clean as a whistle. the only thing I am not sure of is my n-r-f .t won't stay in neutral sloppy. If any one can help a retired vet I need ideas P.s. ITS yard machine