ok i upgraded my 750ss with a 900ss system. the master cylinder will not get stiff at all. calipers have single line galfer lines so i ad to use a double line banjo bolt on master cylinder. so if i hold lever down and crack bleeder i do get fluid to both calipers but the master cylinder will not get stiff and activate brake pads. so i know the master cylinder is working because it is releasing fluid to each caliper. why is it not getting stiff at all. is there air in the lines still or something need replaced.