I have a 1988 R80RT Monoshock. I recently replaced front brake pipes and hoses and the two calipers. Mine has the bridging pipe over the fron wheel to join the left to the right caliper. I am having GREAT trouble purging the system of air. It is taking ages. I am using a simple 'One Man' kit consisting of a length of plastic pipe with a one way valve. I have pumped over 2 litres of new DOT 4 fluid through and there is still masses of air comming out with fluid. I have checked and rechecked all pipe unions etc and am confident there is no leak anywhere. Does anyone have any advice on how I can do this better with out resorting to expensive garage tools? The weather is great and I want to get the old girl on the road!