So while im waiting on carb parts i decided i would mess with brakes today which i dont know much about. so old brake fluid was all thick and gross so i took the reservoirs out and cleaned them and then sprayed down in the master cylinder. Went to beed the master cylinder and i got nothing at all through the lines... no movement or bubbles or anything... i took it off and blew it out with air and cleaned it with brake fluid cleaner... put it all back together and nothing. What else can i check? Im kind of lost...