Husqvarna 455 rancher Starts fine and runs great for about 5 mins. Stalls and wont restart until cold. Problem than repeats

Try removing the fuel cap for a moment to see it can be restarted immediately. If this works, check the fuel tank vent for plugging problems. Also, check for spark at the plug when it dies--if no spark, try a fresh plug gapped at 0.020". If nothing, the ignition module may be failing with heat. Good luck!

You need either a new carb or a new coil. Test carb with spray, if starts then dies, replace carb. If no start replace coil.