Can anyone tell me what kind of set screw that is in that brass-looking piece that the master cylinder shaft screws into? It looks like a tiny allen screw, but I can't seem to get one to fit. They don't make a magnifying glass strong enough for me to see what it is. And assuming I ever get it off and the master installed - is there a procedure for setting the rod length? It looks like there's a little bit of slack in that proportioning bar that hopefully means some tolerance is acceptable.

Thanks,

T