Myrider shuts down after approx 10-15 minuts of mowing. Cannot restart, have to wait 10-15 minuts. Will start, will mow for maybe 5 min, shuts down again. Possible defective fuse?

myrider shuts down after approx 10-15 minuts of mowing. cannot restart, have to wait 10-15 minuts. will start, will mow for maybe 5 min, shuts down again. possible defective fuse? I have changed fuel filter, change oil, cleaned engine and cooling fins, changed fuel -air cleaner-battery charged-cleaned upper mower deck-adjusted carburator.

What's left?

Hi,
The fuel cap.
Peace,
Clarke