First I followed the instruction by Matco, pushing fluid from the bottom of the calliper up through the system. I pushed a half a litre through the system and the breaks were still spongy. Then I did the reverse as used to be on cars, pushing fluid with the brake cylinder down. What I saw was a lot of air coming out of the master cylinder going down into the calliper and out pumping again a half a litre fluid down I got the air out of the system. Now the brakes are rock hard, no spongy feel. Looking at the setup it makes sense to pump the fluid down as the master cylinder is inverted installed therefore the air in the cylinder will not get out from bottom up!
