CLIMAX (WKZO) --    A moped owner is dead after he pulled his small motorized  two-wheeler into the path of a large tractor hauling a 6-thousand gallon manure spreader yesterday.  Apparently he just didn’t see the large farm vehicle.  Dead is 43-year-old Brian Youngs of Scotts. The collision occurred near Climax on R Avenue near 36th Street.  Youngs was pronounced dead at the scene.