ok. if theres air in it to the point where theres no pedal. it will spring down. anyway....
first up. its a pain in the ass.but.
you need two people to do it. open the master clyinder bleed nipple first. push down , close the niple up. pull up. open it push down, close it , pull up..
do this till no more air come out the nipple. should take about 3 strokes.
next do the one on the big loop thing. this one takes a few more. say do that one about 5 times.
then do the slave. say another 5 strokes
each time the pedal is depressed it will need to be pulled up by hand. do it slowly coz if it flings up it will draw air in thru the master.(seals only work in one direction.)
if its being a prick back of the push rod on the master cyl. (12mm nut and wind the rod in a little) to give abit more slack.