It can be shifted to all gears. When attempting to accelerate in all gears a grinding noise is heard and the machine dies. Could this be bent or broken shifter fork?
grinding is not good. and it killing the engine is even worse. it is possible to be stuck in two gears at the same time and if it grinds that means something is broke. there is a splind coupling on the input shaft that could be stripped also. either way means a complete tear down. are you handy with a wrench???