Question about 1999 kawasaki ZZR 600

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Brake calipers spongy feel

Both front calipers fitted with new seals. new master cyl kit no visble signs of air bubbles have bled and bled them .used all the usual tricks but to no avail . great bike **** brakes . help

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Does all the usual tricks include wrapping a thick bungee cord around the brake lever and leaving it overnight? That should force any residual air bubbles to the top of the system where the master cylinder should replace them with fluid.

If that does not work try installing some new bleed screws, even speed bleeders.

Posted on Feb 24, 2009

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Posted on Jan 02, 2017

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1995 crown victoria brakes will not bleed


anual Bleeding
The primary and secondary (front and rear) hydraulic brake systems are individual systems and are bled separately. Bleed the longest line first on the individual system being serviced. During the complete bleeding operation, DO NOT allow the brake master cylinder reservoir (2K478) to run dry. Keep the master cylinder reservoirs filled with High Performance DOT-3 Brake Fluid C6AZ-19542-AA or DOT-3 equivalent meeting Ford specification ESA-M6C25-A. Never reuse brake fluid that has been drained from the hydraulic system or has been allowed to stand in an open container for an extended period of time.
NOTE: Non-ABS vehicles have the brake master cylinder (2140) mounted at an angle to the horizontal, bleeding may be better performed if the vehicle is positioned so that the brake master cylinder is horizontal.
  1. To bleed the brake system, position a suitable box wrench on the bleeder fitting on the brake wheel cylinder. Attach a rubber drain tube to the bleeder fitting. The end of the tube should fit snugly around the bleeder fitting.
  1. Submerge the free end of the tube in a container partially filled with clean brake fluid, and loosen the bleeder fitting approximately three-quarters of a turn.
  1. Have an assistant push the brake pedal (2455) down slowly through its full travel. Close the bleeder fitting, then return the brake pedal to full-release position. Repeat this operation until air bubbles cease to appear at the submerged end of the bleeder tube.
  1. When the fluid is completely free of air bubbles, secure the bleeder fitting and remove the bleeder tube.
  1. Repeat this procedure at the brake wheel cylinder on the opposite side. Refill the brake master cylinder reservoir after each wheel cylinder is bled, and install the master cylinder cap and gasket. Ensure the diaphragm-type gasket is properly positioned in the master cylinder cap. When the bleeding operation is completed, the fluid level should be at the MAX line to 4.0 mm (0.16 inch) below.
  1. If the primary (front brake) system is to be bled, repeat Steps 2 through 5 at the right front brake caliper and ending at the left front brake caliper. Bleed the brake master cylinder at the bleed screw after all calipers are bled.
  1. After disc brake service, ensure that the disc brake pistons are returned to their normal positions and the shoe and lining assemblies are properly seated. This is accomplished by depressing the brake pedal several times until normal pedal travel is established.
  1. Check pedal feel. If brake pedal feels "spongy" repeat bleed procedure, or use the Vacuum method as outlined in Section 06-09, but bleed both rear calipers first.

You can also pressure bleed it. If the abs module needs to be bleed, that requires a special tool. If you have already tried the procedure posted and it didn't work, I'm not sure what next?

Jan 30, 2018 | Ford Crown Victoria Cars & Trucks

1 Answer

XJR 1300 front brake spongy, no air in the system and new braided hoses fitted.


Hi, Anonymous I would try pressure bleeding before rebuilding the master cylinder for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
http://www.getdiscbrakes.com/knowledge-base/brakes/Causes_of_a_low_brake_pedal
Bleeding Your Brakes Dr Dirt Wrenching Tips
Yamaha XJR1300 2007 Service Manual
OEM parts for Yamaha
Yamaha XJR1300 Owner Manual

Nov 13, 2013 | 2002 Yamaha XJR 1300

1 Answer

2001 Silverado 2500 HD Why Rear brakes don't work after I installed new hydro-boost power booster, master cylinder, calipers, and pads. I bled master cylinder before installing, and brakes beginn


Hello Patricia,

Have you checked the master brake cylinder reservoir for brake fluid loss?

I don't suspect the master cylinder as you have replaced it... but am more suspect of a leaking brake line or fitting which should have
been discovered when you had the system bled.

The only time I ever had a rear brake problem with a 2500 series Chevrolet was due to seized rear brake caliper guide pins...as your calipers are also new that is not your problem.

If your brake pedal feels spongy and travels to the floor board you have air in the system, a brake fluid leak or a failure in the power steering system, such as a broken hose, broken power steering pump drive belt, or failed pump, would result in a loss of pressure to both the hydro-boost and steering.

Find more information here:

. Hydro Boost Power Assist Systems Operation Diagnosis and Repair

Jul 23, 2017 | 2001 Chevrolet Silverado 2500HD

1 Answer

How to bleed brakes


to bleed brakes is a relatively easy job for two people although it can be done by one without a pressure bleeder.NOTE keep brake fluid levels above minimum at all times during bleeding ( forgot to do it my self on more than one occasion and had to start over, trying to do too much at once) To do by your self you will need the correct ring spanner for bleed nipple, a clear tube that is a tight fit on bleed nipple ( long enough to reach down to floor) and a container with about an inch of brake fluid in it (glass jar will do it, is easier to see fluid level), Starting with the cylinder/caliper at rear furtherts from master cyl (longest brake line from tee piece) place spanner on bleeder then fit tube, placing other end of tube into container below level of fluid,. release master cyl cap/lid (no need to remove completely) undo bleeder half a turn, watch for fluid in clear tube. this should start to flow within 10 to 15 seconds (if bleeder isn't blocked with road grime clean if required), if fluid doesn't flow by it self (it should but) tighten bleeder then release again quarter of a turn, apply foot pressure to brake pedal, hold pressure on pedal till you feel pedal dropping towards the floor (half inch of pedal travel should be enough) ( fluid in container will stop air being drawn into brake lines when you release brake pedal) check clear tube for fluid/bubbles, open bleeder further quarter turn, if fluid has filled clear tube allow fluid to fill container a further eight of an inch, then close off bleeder (make sure no bubbles appear in tube whilst this is happening other wise drain more fluid till only brake fluid is visible in tube ) repeat process on opposite wheel cyl/caliper, then repeat process on front caliper furthest from master cyl , then the caliper closest to master cyl last. If two people are doing the bleeding the same clear tube and container are used,as is the order in which cyl/calipers are bled. One sits in the car and pumps the pedal until it has some resistance under foot (Whilst the pedal is held down) second person releases bleeder, first person keeps pressure on pedal whilst bleeder is released (pedal will travel towards the floor) when pedal has been depressed as far as it will travel second person closes bleeder before, the first person releases pedal and pumps the pedal again repeating the process until no air bubbles appear in clear tube at this cyl/caliper before moving to next cyl/caliper. good communication must be maintained to make this process hassle free

Jun 22, 2012 | 2000 Dodge Caravan

1 Answer

Rear brake locks up on 90 dresser, caliper or master cyl


If you how to rebuild the caliper then fit a new seal kit but if your not sure take if to a garage you have to be carful with brakes

May 27, 2012 | Harley Davidson Motorcycles

1 Answer

I have replaced the brake master cylinder and bled the brakes. I still have spongy feel to them and it also feels as if the push rod is off, but it isn't at least not at the master cylinder.


you will have to bench bleed the new master brake cylinder. you can buy a kit the contains fittings and hoses to do this on the car. When you install a new master brake cylinder without bench bleeding it first air will remain trapped inside and no amount of wheel cylinder bleeding will remove it.

Jan 15, 2011 | 1988 Dodge Dakota

1 Answer

Have an 89 festiva changed 5 master cylinders and still cant bleed front driver and rear pass wheel and also changed distribution block 3 times. i cant bleed it rite from the front port of the master...


Section 06-06: Hydraulic Brake System 1992 Festiva Workshop Manual GENERAL SERVICE OPERATIONS Manual Bleeding
  1. Read Hydraulic System Bleeding General Information.
  1. Clean all dirt from the master cylinder filler cap.
  1. Fill the master cylinder with the specified brake fluid. During the bleeding operation do not allow the master cylinder to run dry.
  1. If the master cylinder is known or suspected to contain air it must be bled before the wheel cylinders or calipers. To bleed the master cylinder, loosen the front line fitting and have an assistant push the brake pedal slowly through its full travel. While the assistant holds the pedal, tighten the brake line fitting. After the line fitting is tightened, the assistant may release the brake pedal. Repeat this procedure on the rear brake line. Repeat the entire process several times to ensure all air has been removed from the master cylinder.
  1. Remove the bleeder screw cap from the appropriate rear wheel cylinder.
  1. Position a box end wrench on the bleeder fitting.
  1. Attach a rubber hose to the bleeder fitting. The hose has to fit snugly around the bleeder fitting.
  1. Submerge the free end of the hose in a container partially filled with brake fluid.
  1. Loosen the bleeder fitting approximately three quarters of a turn.
  1. Have an assistant push the brake pedal slowly through its full travel and hold it there.
  1. Close the bleeder fitting.
  1. Have the assistant release the brake pedal.
  1. Repeat Steps 9 through 12 until air bubbles cease to appear at the submerged end of the bleeder hose.
  1. When the fluid entering the bottle is completely free of bubbles, tighten the bleeder screw, remove the bleeder hose, and install the bleeder screw cap.
  1. Repeat Steps 5 through 14 at the appropriate diagonal front caliper.
  1. Check the master cylinder fluid level. If necessary fill it to the correct level with the specified brake fluid.
  1. Check pedal feel. If the pedal remains spongy, repeat the bleeding process or, if necessary, refer to Diagnosis and Testing in Section 06-00.

Jan 04, 2011 | 1991 Ford Festiva

2 Answers

I changed the front pads on my 97 Sebring convertible. Also put on new rotors, and changed the calipers. My car bounces slightly, and if I apply the brakes hard, they become spongy. I have bled them off as...


Spongy means air present in the hydraulic system,I recommend check and recheck all of the brake system areas where air could enter(master cylinder,fittings,calipers,etc.)and bleed the entire system again.
Good luck !

Feb 02, 2010 | 1997 Chrysler Sebring

1 Answer

2004 beetle brake problem


hello rule of thumb never push pistons back on calipers without master cyl cover off pressure blows seal out on mastercylinder what you need do is from the firthest wheel pass rear bleed first then drivers rear then pass front to drivers side to mastercyl lines rear to front sounds like trapped air in proportioning valve with two people pump pedal up 3-4 hold take cover off master watch brake fluid take foot off brake pedal quick watch for air bubbles or small geiser like movement you need to work the air out reinstall cap repeat again if needed there shouldnt be any ripples when the peddle is let go if rear calipers have built in emergency brakes use emergency brake to wind caliper piston a few times goodluck

Sep 18, 2008 | 2003 Volkswagen Beetle TDI

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