I am completing a frame on restoration of a 1980 R100. I am having trouble with the front brake free play. The front wheel turn with just a little drag, as does my 1984 R100. The master cylinder cable has what I believe is the correct free play, yet I have almost no free play at the lever. The only way I can accomplish free play at the lever is to loosen the cable to the mc too much, as in the cylinder at the end of the cable isn't even touching the master cylinder lever that pushes the plunger. The mc seems to be working right as fluids exiting and returning are evident when I take off the cap and look into the reservoir. Anybody have any ideas?