shouldn't matter how long it took...unless the kill switch button stayed connected and fried a wire someplace in the harness.
The first place to look if both kill switches don't work is the solenoid on the engine itself...find the hot terminal and jumper it to see if the solenoid closes the fuel shutoff lever. I fit does...go on...
You can troubleshoot each button by starting the engine/or havean assistant look at the kill solenoid on the engine and put a jumper from ant 12V positive source to the wire headed for the engine.
If it kills the engine /moves the lever...it's just the switch.
If not you will have to isolate each wire run...there are several ways to do that but eacs had to have continuity or power at both ends if the circuit is energized (simplified language so the purists can relax).