Hello, I’m in despair soon. I bought a CM400 and had to do something about the front wheel disc brake because it was fixed. So I completely dismantled the caliper, cleaned everything, greased the brake piston with brake piston paste, installed new brake cheeks. Upstairs I cleaned the main brake cylinder and then installed a new repair kit. The brake hose is still the old one. I also watched some videos on Youtube how to vent. So: I tried this for about 1/2 hours. First, a few air bubbles came out of the vent valve, but now nothing happens anymore. If I use the brake lever “pump” at the top of the valve, very small bubbles – but only a few – come out in the brake fluid tank. What do I do wrong or are there any other options? How do you get the brake fluid down into the brake chamber? Ttel?