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K0 Master cylinder problem

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RGP750:
Bike is almost finished and i have filled the master cylinder and have a problem.
The body was cleaned and a new plunger/seal kit fitted.
The brake fluid won't pump down the pipes.
I have the nipple removed and left the cylinder filled last night with the lever pulled in (i assume this
will leave the access out open).
No fluid has left the cylinder,pumping the lever doesn't make it move either.
I took the lever off and the plunger mover freely by pushing with a brass rod.
Any ideas welcome please.
Rich

Trigger:
Prime the master cylinder  ;)

philward:
Hi Rich
I had a similar problems a few years ago when I built my K2 - it turned out to be one off the tiny holes blocked. Cleared it with a 1mm drill bit and bleed straight away
Phil

RGP750:
I have Trigg.
I'll take a look at that Phil Ta.

RGP750:
Me again
Taken master cylinder off, washed out and yes Phil hole looks blocked, i used a
jewelers eye glass and the hole is minute.
One strand of copper harness wire won't clear it.
Is it ok to open the hole up? I probably have a .5mm drill  at work
but that is larger than what is there.
Rich

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