Hello. I bought myself a Benelli TNT 1130. My first motorcycle. Before I start learning to ride, I decided to change all the technical fluids. Using the video manual and PDF manual, I changed the coolant. I unscrewed the bolt on the water pump and on the engine in the cylinder area, poured out the old fluid. But from the tank that shows the level of the liquid did not merge. I pressed the tubes, tilted the motorcycle, but the liquid did not drain from the reservoir. I decided to pump it out of there with a syringe, through the cap on this tank. Then I started pouring new coolant. Filled with about three liters, to the brim. But there was no liquid in the tank. I pressed the tubes and tilted the motorcycle, but no new fluid appeared in the reservoir. I started the engine and warmed up the bike to operating temperature. But there was no new coolant in the reservoir. Tell me what am I doing wrong? Why is new fluid not getting into the tank? At the same time, the liquid level in the neck near the right radiator does not decrease.