Brake

[Guest]

[b]the brake is not working. I replaced new brake all around with new master to cylinders and now i can't get them bleed. The brake fluid will not go into the lines. It stays in the master cylinder want pump out. What am i doing wrong??????

[cableguy]

[b]the brake is not working. I replaced new brake all around with new master to cylinders and now i can't get them bleed. The brake fluid will not go into the lines. It stays in the master cylinder want pump out. What am i doing wrong??????

The first thing you did wrong is not give year/make/model of your bike. You have angered the gods!

From what you wrote (and should I assume that English is not your first language?), it sounds like you've done a complete brake job with fluid flush, and a new master cylinder. Just the front master cylinder, or both? The front brake is separate from the rear. Before we get into how to fix your problem, you should provide some additonal info:

1) Year make and model of your bike.

2) What exactly did you replace? Pads, lines, fluid, master cylinder, front, rear, all of it.

3) How have you attempted to to bleed the system? Maybe you just need help on your technique.

Lastly, check out the mother of all info sources http://members.dslextreme.com/users/bikecliff/

Good luck!

[Nessism]

Try priming the master by drawing a vacuum on one of the caliper bleeder nipples. If necessary, use a length of tubing and use your mouth, just be careful. If that fails, your master return port is plugged up.

Oh, and hope you replaced the lines while doing all this work. It's crazy to reuse the old worn out brake lines.

[Steve]

It may be necessary to prime the master cylinder. Remove the lever and the brake hose. Put a finger over the outlet hole. With your other hand, find the plunger that the lever usually pushes on. Push in on that with a Phillips screwdriver, while allowing pressure to escape out the outlet. Be sure to push the plunger all the way until it stops. Before letting the plunger spring back, cover the outlet tightly with your finger. Repeat this a few times until you get fluid and no air. Put the brake line back on the outlet, install the lever, continue with a 'normal' bleeding of the system.

Because the back master cylinder sits vertically, this is seldom a problem, but can be done without removing the mechanism from the pedal.
Simply use your finger as a check valve on the outlet, making sure it is tight when you let the pedal back up.

.

[enelson2047]

Brake

the first thing you did wrong is not give year/make/model of your bike. You have angered the gods!

From what you wrote (and should i assume that english is not your first language?), it sounds like you've done a complete brake job with fluid flush, and a new master cylinder. Just the front master cylinder, or both? The front brake is separate from the rear. Before we get into how to fix your problem, you should provide some additonal info:

1) year make and model of your bike.

2) what exactly did you replace? Pads, lines, fluid, master cylinder, front, rear, all of it.

3) how have you attempted to to bleed the system? Maybe you just need help on your technique.

Lastly, check out the mother of all info sources http://members.dslextreme.com/users/bikecliff/

good luck!

83 gs1100e