I have a Z4217 Husqvarna with the 17.5 hp Briggs Intek. It is cutting out (dying) quite often while mowing. If I keep cutting when it starts dying it will shut right down. If I stop it will usually catch back up and keep running. Usually, if I disengage the blades it will stay running and dies more if blades are left running. I can't quite tell if it is cutting out electrically or fuel related but it seems electrical to me. I have removed and cleaned the carb but didn't find anything suspect there. Fuel filter flows freely. Gas cap is vented and free. Is there common things I can look for? I wonder about the multitude of electrical connections with the many safety switches everywhere. Thanks in advance for your wisdom or ideas.