Hi!

The problem with my mower does not seem to be related to engine.

The engine starts strong and does not seem to exhibit any issues.

However, as soon as I let go of my brake pedal, the engine quits as
though some kind of plug has been pulled.

as long as I have my feet pressing on the brake pedal, the engine runs
fine.

I was thinking it is ignition switch issue (since the ignition system
is designed that the engine will not start unless the brake is pushed),
however, if that is the case, I would think the starter motor would be
continuously running (if switch is stuck at the start position) but it
does not seem so.

It just happened suddenly, without any notice. I was mowing and poof,
engine quit. Since then above issue was happening.

I am miffed.

Thank you in advance for your help.