Ccan someone tell me what is happening with my brakes when i bleed them. i make the lever grub screw loose and undo the cylinder screw and put in my syringe with the hose on the end i pump the liquid through and while im pumping near the end i screw the lever screw back in then i take out the syringe and screw the cylinder bolt back in and test the brakes and they only just rub on the rim not grip it. what is happening??? cheers onza-rider