I "inherited" a lawn mower when I moved to a new house. It's a kubota walk-behind one. Unfortunately I have no idea how to stop the engine. There's no usual lever for stopping the fuel on the handle. There's only a choke/fast/slow/stop switch, which regulates the speed of the wheels/engine, but "stop" doesn't seem to stop it.
There's some marketing paper for the mower, but I couldn't find any manual.
Any ideas what should I look for?
Edit: As requested - handle (The left-most, unreadable position is "choke") (click for a slightly larger version):