Mini 14, thank you for the heads up.  Maybe….with the filter in the tank partially plugged and a weak fuel pump it would cause the tractor to stall.  When I woul restart the tractor I would have to crank it over 10-15 seconds bef it would start.  I’ve used it twice since I cleaned the filter in the tank and it hasn’t shut down.  I’m going to monitor for now and see what happens.  Thanks again!