Hello, I have been restoring an old cm400 C. I had to purchase a new master cylinder, with handle and everything, in addition to having the caliper rebuilt. Everything on my front brakes is "new" except the line. Now I can't get it to bleed. I filled my reservoir, followed the instructions to bleed, and I am getting fluid through the bleeder valve, but still zero pressure on the handle. I even bought a handheld vacuum pump to try bleeding that way and still nothing..cannot figure this out. Anyone experience this with "brand new" (rebuilt and never had fluid) system before?