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Re: Garbage brakes!

Posted: Thu Sep 10, 2009 7:08 pm
by extonyg
i think i read somewhere on here that some one loosened the banjo bolt on the m/c jst enough to let some fluid out and pumped the lever as its mainly air stuck in the m/c that causes problems not really the lines, as the m/c is one of the highest points and air rises.
might help.worth a try hey

Re: Garbage brakes!

Posted: Fri Sep 11, 2009 8:43 pm
by Wabby
OK.

So I removed the calipers from the forks, and lifted them ABOVE the master cylinder.

Bled and almost immediately got some RIGHT pressure on. I mean as soon as touched, they were SOLID.

Put them back down to forks, forced pads back (was together), and re-fitted to forks.

Pumped back up to get pads to discs - Back to only biting one inch from bar.

Any ideas?

Their is a possibility air got sucked in just before putting them back down to the forks - As the fluid was quiet close to the hole to M/C level.

ARGH!

Re: Garbage brakes!

Posted: Wed Sep 16, 2009 4:47 pm
by bendog66
adjust the lever to it's widest setting lol

Re: Garbage brakes!

Posted: Wed Sep 16, 2009 6:44 pm
by zimm
you need to bleed them with the pistons pushed back in, or air can get trapped behind them

use a bit of plywood between the pads to keep the pistons from coming out.

btw, how worn are your discs ? if they are worn thin the pistons have to move further to engage the brake, you can butt about for ages but you wont get a decent feel at the ever with worn out discs.

kagizume discs are the cheapest currently out there at ~£160 a pair .. good discs too, used them on both bikes i've built this year.