Maybe not the right words, but didn't realise it had to have a pressure differential across the valve to be able to draw fluid through, thought it was supposed to pump it through!!!
Anyway, MoT passed
..............................but not without one more kick in the b**locks from the bike!! It decided to blow the main fuse two miles from my house on the way to the MoT! So I had to push it back, sort out the fuse (although I carry a spare, I didn't have the tools to remove the seat!?!?!?!), and then ride up there again!!
Clive