Question about 2008 KTM 200 EXC

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My back brakes are not getting any pressure. all copper washers as well asnever brake lever and hose. when we tried to inject brake fluid into the caliper with a syringe the fluid wouldnt even pass through. I have a reace tomorrow how do i fix this?

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You need to bleed fluid through by pumping the lever and then opening the bleed valve, until all the air is out of the system.
The bleed valve is where I suspect you were attempting to use the syringe

Posted on Apr 25, 2010

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Brake Line Replacement on 1996 Olds Ciera


If you need to replace a brake line, you're going to have to bleed the line of air once you remove the broken one. I would highly suggest having an Autozone Tech. explain how to get that accomplished (they have always been very helpful to me).

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If this is on a flexible style hose to caliper, then clamp the caliper, remove the bolt and copper washers. Replace the washers, clean the area, make it free of corrosion and rebuild.
At a last resort, if you can't find replacement copper washers, then heat up the washers until soft, then rebuild quickly and tighten down.

Bleed that brake line, pump out the pedal and apply generous force to the pedal. Check the joint for any leaks once more.
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I replaced the front tire on my 1996 Honda CBR500F and now I cannot get the front brakes to work. How do I fix this?


If you forced the brake pads back in the caliper to ease installation of the front wheel, they'll need to be bled. Bleed the left one first, then the right.Connect some clear 3/16 hose to the bleeder nut and catch the fluid in a drain pan. Pump the lever slowly until you get some pressure, hold lever down and open the bleeder nut. Close bleeder nut before releasing brake lever or you'll **** air back in the system. Repeat until no bubbles come out of the bleeder. Keep an eye on the fluid level in the master cylinder and add fluid throughout the process making certain you never run it dry or it will **** air in as well. You may not get lever pressure until both sides are done.
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Jun 09, 2011 | Honda CBR 600 F(3)S Motorcycles

1 Answer

I have a lifen 125 pitbike 2008 model set up rear brake and how to bleed


Don't open more than one bleeder at a time. Oh, and pumping the brake handle doesn't do anything. It doesn't build up pressure like a car does. What you what you want to do is squeeze the brake lever, open the bleeder to are doing at the time (master cylinder first, right next to the brake lever) while you are holding the brake lever in, close the bleeder. When you let go of the brake lever, it will **** in fluid from the reservoir. Then squeeze the lever again, open the bleeder, close the bleeder, then let go again. Keep doing this until you don' see any more air bubbles come out and MAKE SURE you do not let the reservoir go empty. If it goes empty, you just put air in there and have to do it again.

Once you get down to the calipers, try to do it fairly quickly. The air bubbles move slow through the lines, but once the fluid stops moving, they will slowly start moving back up. If you let go of the lever with the bleeder open, it will **** fluid from where ever it can get it, so it will pull from the reservoir AND the hose you are trying to bleed, so it will just **** the air bubbles back higher in the line

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Hose leaking brake fluid. under drivers side . just put in new brakes and rotors


If the brake calipar was left hanging by the hose instead of being tied up,that puts a strain on the hose and the brake line causing it to crack or break. The hose needs to be replaced, and the brake system bled of air.

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Cannot get calipers off FORD


BRAKE HOSE BOLT IS STILL CONNECTED YOU HAVE TO LOOSEN AND REMOVE BRAKE HOSE BOLT BEFORE CALIPERS COME OFF.THE COPPER WASHERS THAT CAME OUT WITH BRAKE HOSE BOLT HAS TO BE REPLACED THEY ARE SEALS THEY WILL LEAK IF REUSE THEM.

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1 Answer

2004 electra glide classic front brakes locking up.tried another master cylinder and replaced fluid with new.what else could be causing it.


By "locked up", I'm assuming that once you release the front brake lever, the bike will not roll. As with all disc brakes, the brake pads do not withdraw away from the disc. They maintain light pressure on the disc to keep it clean and dry. When you pull the lever, they apply stopping force. When you relaese the lever the force is releaved but the pads still stay in contact with disc lightly and the wheel will turn.

If you've tired another master cylinder and the brakes are still locking up, there is something wrong with either the hose or the caliper itself. Usually, it's the caliper. You must take the caliper off and use compressed air to get the piston out. You must be very careful while doing this. If you must use high air pressure, the piston will come out of the caliper with extreme force. I use a small air pressure regulator to slowly increase the pressure starting at about five psi.

If you get to 25 psi or better, things can get dangerous. At this point, I quit using air pressure and go to a grease gun. By taking the end off the end of the hose on the grease gun, it will screw right into the place where the brake line goes most of the time. Now pump the grease in until the piston pops out. It's a nasty job but a lot safer than the air pressure method. Clean the caliper up completely free of grease. Use a wheel cylinder hone to hone the inside of the caliper's piston bore. Pay particular attention to the groove where the caliper top seal goes in. Lubritcate the piston and the inside of the piston bore of the caliper with the proper type of clean brake fluid and press the piston into the bore. The caliper is now ready to reinstall. Make sure you are using the proper type of brake fluid. Harley changed back to DOT 4 brake fluid but I can't remember what year. It should be on the top of the master cylinder cover. Do not mix DOT4 and DOT 5.

I have on a few occasions seen a rubber brake hose that would not allow the brekes to release. They get damaged on the inside. The very high pressure present when you apply the brakes can get past an obstrucion on the inside of the hose. But, once you release the pressure, as the pressure lowers, it gets to a point where it cannot get past the obstruction and thus holds this amount of pressure on the caliper. Replace the brake hose.

Make sure you bleed all the air out of the system. If you leave any in there, as the air heats up, it expands and applies pressure to the brakes and makes them drag. Alweys test the brakes before riidng the bike. Improperly serviced brakes can cause serious injury or death. Good Luck, Steve

Apr 25, 2010 | 2004 Harley Davidson FLHT - FLHTI Electra...

1 Answer

How can install the brake front hose.


JACK UP REMOVE WHEEL BRAKE HOSE WILL ATTACH TO INNER FRAME RAIL AT SOME POINT LOOSEN THAT END WITH LINE WRENCH AND REMOVE LOOSEN END AT CALIPER INSTALL NEW HOSE DON,T FORGET COPPER WASHER AT THE CALIPER END TIGHTEN UP REMOVE BRAKE FLUID TOP AND FILL WITH FLUID HAVE SOMEONE PUMP BRAKES FOUR OR FIVE TIMES KEEPING PRESSURE ON PEDAL LAST TIME WHILE YOU CRACK UP BLEEDER SCREW ON CALIPER CONTINUE TILL NO AIR OR BUBBLES PRESENT TOP OFF MASTER CYLINDER

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don't double the washers you can have a brake fluid leak (dangerous). you're trying to tighten the brake line to the caliper? did you change calipers? is it the original bolt? what exactly have you done?

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I've taken off the front brake hose & drained my front brake caliper. After re-assembly I can't get any pressure built up in the line. When I squeeze the brake lever it's totally free/loose/floppy. Can u...


Hi, The lines have to be bled to get the air out. There is a small fitting on the calipers to do this. The best procedure is to use a piece of tubing and a glass jar. Fill the fluid reservoir up to the top. Put some brake fluid in the jar, barely open the fitting, squeeze the brake lever and watch for bubbles, pump the lever until there are no more bubbles and it tightens up. Be careful not to run the reservoir too low and get air back in the line. This should Fixsya!

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