Pull the lever, goes pretty solid, but then if you roll the bike back or foward, or release the finger pressure on the lever, it goes completely soft and straight to the bar!!
hi guys i had the same problem i bleed the system from every connection in the hoses it seemed to sort the problem air must get caught on the hose fittings. If you dont know what i mean level the master cylinder keep the res full and pump the lever till it gets hard. hold it solid and loosen each joint till a bit of fluid comes out do this with all the connection the chances are you should find air some where.