NDDan
Guest
Make sure filler kit is installed. The filler kit narrows up the wide opening that is meant for the larger feeders to the narrow feeder of a R50. There is also a floor slope kit that will help material get to feed chain weather it is a larger feeder or smaller. The last thing is to be sure that left and right flighting intersects a center line around tube. If flighting does not the material will not flow back into feeder very well in that spot. I have had to extend flighting on every head I've been around. Good luck