okay i just relaced front calipers and i bled them the fronts bearley grab and the rear just lock up when i put the peddle down i have no clue whats going on i kinda need it for the weekend there is a big ride that i wanna attend can anyone help out ? i got a used master tried that and still nothing changed out the proportion valve and nothing still?? anyone that as an idea please tell me

 

If your foot goes to the floor there is probably still air in the lines.

 

Try bleeding the proportioning vavle. Its easy and then you will have one more thing to eliminated

 

If you didn't bench blead the master cylinder that could be your problem

 

how did you bleed them

 

make sure you didn't put the calipers on the wrong side.
check to be sure the bleeder valve is above the brake line. otherwise, you'll never get them to work.

 

yeah i bench bled the master and the bleed vavle is on top i made syre of that ill try the prop valve tomorrow
when i bled them i started from the rr lr rf lf thanks guys