A common problem with Briggs or any other lawn mower is vapor lock or insufficient oxygen. When the engine begins to bog down or become unstable, try loosening the gas cap to see if it will stabilize. If it does, then it means the gas-cap vent is clogged up or needs replacing.
mine did the same thing i replaced the crank sensor and it runs fine
May be partial blockage in fuel line.
try replacing your fuel filter
check for a bad ground
Yes I can restart it and it will run fine for a whilethen it may or may not shut down that day.
it's your crank sensor as soon as the engine gets warm it shut offs. let it cool down and the car starts back up.
Check spark after it shuts down.Might be your coil getting week after it gets hot.It could also be a spark plug.
ECU is probably bad.
alternater is shot
Sounds like an electrical problem - maybe coil
Your Briggs and Stratton 5.5hp only runs with the choke on because it needs a tune up.
Ignition module