So I have a 1984 cr80 that is very close to being finished with the rebuild. I’m currently installing the water pump assembly then will be putting the new clutch in and the engine cover. While looking at the diagram and parts, I finally realized how strange this water pump assembly is and when I installed it exactly like the diagram it just doesn’t seem right at all. If you look there’s the bearing sitting inside the engine case, then I put another bearing on top that’s sitting in some cup? Then a cup with four metal balls and a gear? The second bearing just slops up and down with no real intention and everything else leading up to the gear. Also I notice a hole in the engine case right above it which I believe all connects it to the atac system in the cylinder? But I have a pro circuit pipe with the atac deleted. Would I need to modify the water pump assembly and cylinder in any way because of this? Sorry for the confusing post I’ve just never seen anything like this and I’m very confused. I want to delete the entire atac system on my bike. What do I need to do in order to do this and how should I have my water pump? 
