So I go to replace the fluid in my 79 kz1000 st. Blow out all the lines clean everything up reall good. Put new pads on the rotors. Use a toothpick to clean the two little holes in the resevoir. Even with a vacum pump i can not get brake fluid to come out of the resevoir. Crack the lines by it thinking maybe a vapor lock. Nope. When i operate the handle it pumps air out the bleeder but no fluid. Pump the brake close the bleeder and then release it open the bleeder and it seems like theres back pressure. Same sound as when i pump it. Been beating me up for two days know. HELP.