So, you would approach the size of the engine, pull pin on grille guard, pull grille guard forward, put face near hood, pull hood release, open hood, lift hood, open air intake, stuff rags in.... All while a tractor designed for 3000 rpm max is racing at over 4000 rpm. You are braver than I my friend. A thrown rod or fragging turbo will kill you. Brave is occasionally the camouflage of DUMB. The design of the Kubota does not allow a safe way to kill a runaway. If there is a large CO2 canister handy then that is the best method. Unfortunately I left mine I the runway of the airport. Probably need to tow it at all times. Kubota has had the tractor one month. No concession or upgrade, despite numerous 5200's doing this. I MAY pay the difference and get the 5800. But their only offer has been a replacement of tractor only. Loader and valves get moved.