my gehl 7810 skid-steer will start and kinda idle for a bit but then will kill. If I throttle it up it also kills. It kinda throttles up a little on its own the kills off or almost kills seconds.
Have you changed the filters?
Perkins or Cummins? The Perkins REALLY needs a biocide to deal with the biodiesel and a cleaner to get the "scum" off of the sensors in the fuel system. Perkins has an electric pump as part of the fuel filter housing which need replacing when they get gummed up too.
Filters have been changed. Its a perkins and it will start and run for a few seconds and then rev up on its own and kill. But it will start and do that over and over again.