Front brakes not working after constant bleeding

[93YamahaSerf]

I bleed my rear brakes, work fine now,
I moved up to the front brake, I filled it with fluid, pulled the handle 3-5 times, held it down, loosened the bleeder screw
and some fluid came out I did this about 3 times then nothing came out at all, so I did it another 5-6 times and still nothing, the reservoir is full of fluid, the bleeder screw is on tightly as I pump the lever.
is there somewhere where there is a broken seal where is allowing air to get into it?
or am I doing it wrong.
I messed with the gear wheel in the reservoir and still nothing.