Husqvarna zero-turn dies when blades engaged
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.