Master Cylinder prob

[super@]

Hi, I have replaced my brake lines and discs and went for a ride and when I got back i noticed that fluid is spilling out of the master cylinder from the top.

is this because I have over filled or do i need a new lid and gubbins for it


Cheers once again.

Ps put kyoto wavy discs on and they look well smart

[StumpyFingers]

You could have over filled it, or you could have an air lock.
Leave it with the lever applied, overnight, then see if you need to remove or add fluid.

[scarfacehugo]

Too much fluid can cause pressure on the pads, causing them to rub against the discs all the time. Hot pads, hot oil, oil expands, creates more pressure on the pads untill the pads lock on to the discs. Beware.