Question about 2004 Yamaha YZ 450 F

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2004 yfz 450 brakes don't work

Ran over small tree the diameter of a quarter and the tree got jammed between the brake caliper and the nerf bars. after 10 minutes i got my quad free but the brakes don't work now. i bled the brake line and a little air came out but didn't fix problem. i don't think the master cylinder is bad bc the brakes worked fine before. i was going to bleed the system totally. maybe the caliper is bad. how do you check

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The caliper probably got torqued and slightly twisted by the tree. This would restrict movement of the brake pad. No movement - no brakes. Pull the caliper and look at the pad as you apply the brake. No movement of the brake pad? Replace the caliper.

Posted on Mar 11, 2009

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How do i disable r/r caliper on 2004 expedition


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Jan 22, 2012 | 2004 Harley Davidson XL 883C Sportster...

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My rear brake dose not work. When I removed the cap on my rear master cylinder the rubber plunger or diaphram was twisted and colapsed. Would this mean it is bad. Cant race with no rear brakes help. Its a...


Thank you for contacting FixYa with your inquiry.
The Rubber Diaphragm by nature is usually somewhat collapsed and twisted looking. Unless it appears to be non functional it's probably OK. It's important to have fluid and make sure the air is out of the system. There is a bleeder screw to allow for evacuating the air out of the system.
http://cyclehuttktm.com/FicheFinderNew/FicheFinder.aspx Go To: 2004 > 450 EXC-G RACING (USA) > CHASSIS > BRAKE CALIPER REAR
Also look at the repair kit Item #2 (50313081200)
You can purchase a complete repair manual from this site: http://store.payloadz.com/details/391226-eBooks-Technical-2003-2004-KTM-450-525-EXC-Racing-Owners-Manual.html
Make sure you have serviceable pads, proper KTM brake fluid, and the air is out of the system and the brake cylinder is functional and you will have brakes. There is also an accessory available the cools the fluid for the rear brakes and keeps them from fading if you ride the pedal or are constantly braking. Ask you dealer.
Let us know if we can be of further service.

Kind regards,
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1 Answer

I have a 2004 ford expedition. Am having problems with passenger front brake caliper sticking. Over the past 3 months Ive replaced the caliper, pads (driver and passenger), brake hose (passenger). Drove...


you don't lube the piston only the studs that hold your caliper it have to slide freely on them some times rust, dirt or using the wrong tools for them cause them to drag or jam i hope thats your problem otherwise i recommend to have it checked by a specialist as you may have issues with the antilock valve body or the splitter !

Jun 28, 2011 | 2004 Ford Expedition

1 Answer

Front disc brake installation


Brake discs with pads need to be changed both sides on the same axle. Slacken the lug nuts and then lift the corner of the car and remove the wheel. Put a screwdriver tip between the brake pad and the disc and twist until a couple of millimeters of gap has opened up, do this front and back of the disc. Now remove the two large caliper securing bolts and lift the caliper up. locate the caliper body so that its weight does not pull on the rubber brake hose ( piece of wire to hold it temporarily to the strut spring is good). The disc is located by a couple of small screws. Remove these and the disc will come off the wheel studs. Fit the new disc and reinstate by reversing the steps above. Note if you have pushed the pads back far enough when removing the calipers then the caliper should refit easily over the unworn and therefore fatter new disc even with new pads fitted. put a small dab of anti-seaze grease (CopperEaze or similar) on the back of each pad as this will prevent squeal. Tighten the caliper bolts thoroughly when reassembling. Remember to pump the brake peddle back to pressure to re-seat the new pads to discs before test driving. Now do the same to the other side. If you are new to this the fist wheel is a voyage of discovery and the second wheel will take a quarter of the time.

May 12, 2011 | 2004 Jaguar X-Type

1 Answer

Terrible bang/ thud when i hit any bump even small ones at any speed


could be a bad brake caliper, try riding brake and hit a bump did it quit? loose exhaust system, boken strut or shock, broken sway bar stabilizer bolts

Jan 22, 2011 | 2004 Ford Crown Victoria

1 Answer

How to change the break pads for ford focus 2004


The following is from a tip I have posted for all cars but will work for yours, for removing the caliper bolt, a 7mm Allen wrench should be needed.
First Here is a list of what you will need. This list mainly applies to disc brakes but I have included a link for how to replace drum brakes with graphic images. All parts can be purchased from an auto parts or hardware store.
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  • C-Clamp
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  • A can of Brake Cleaner
  • Car-jack and lug wrench
  • A small bungee cord
  • Wrench/Socket/Allen Wrench (depending on your car)
  • A hammer (mainly for drum brakes)
  1. Lossen the lug nuts.
  2. Jack up the vehicle.
  3. Remove the tire from the vehicle.
  4. Use the brake cleaner to spray the brake pads and disc taking care not to spray plastic parts on the vehicle. This is done to partly protect yourself from the brake dust and to also clean everything and help remove rust.
  5. The following steps are for disc brakes, for drum brakes skip to step 15.
  6. Next, remove the caliper bolts, the heads will be located on the inside side of the caliper, the wrench needed will vary base on vehicle make and model.
  7. Slide the caliper and brake pads off of the disc.
  8. Remove the outer brake pad.
  9. The bungee cord may be used to keep the caliper from hanging freely. Do not allow the brake line to be bent or hold the caliper itself.
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  12. Grease the caliper bolts.
  13. Put the new brake pads on the caliper and slide the brake pads and caliper back onto the disc and insert the bolts.
  14. Skip to Step 18 for disc brakes.
  15. For drum brakes, use the hammer, brake cleaner, and possibly a pry bar to remove the drum which should slide directly off.
  16. Use the brake cleaner to spray the brake pads and other parts within the drum to clean and prevent dust from being breathed in.
  17. Use the following link for better information on how to replace drum brakeshttp://www.2carpros.com/articles/how-to-replace-rear-brake-shoes-and-drums
  18. Mount the tire, bolt on the lug nuts, and remove the jack.
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Congrats on replacing the brake pads on your vehicle.
Benjamin

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1 Answer

Rear wheel (left) brake fluid leak


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What is the procedure to replace front and rear brake pads on 1 2006 Audi A4 Quattro? It doesz not seem to be the same process as American cars.


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2 Answers

How do I bleed the front brakes on a 2004 audi a4 quattro?


For front brake pads replacement you need only usually wrench set, inclusive 7 mm allen key also. But for rear brake pads replacement you need obligatory a special caliper piston pressing tool, in order to press back rear caliper piston with parking brake automatic adjustment!!! For front brake pads. First you must verify yours front brake disc diameter: 280 mm or 288 mm. (On my car y have 288 mm). After that you can buy the brake pads (with wear sensor). For change front brake pads you must raise vehicle, remove wheels, extract the retaining spring of the caliper, and remove the caliper as follow: 1. Do not disconnect the brake hose from the caliper, and do not allow the caliper to hang by the brake hose! 2. Remove top and bottom caps (on back side of the caliper) for access to guide pins, then unbolt and remove them from the brake carrier. Remove the caliper. 3. Now you must thoroughly clean the brake calipers (free of grease). 4. Remove outer brake pad from brake carrier. 5. Pull inner brake pad out of brake caliper piston. 6. Check up the brake fluid level on the reservor, and emptying if neccessary! 7. Push piston back into brake caliper housing. 8. Install inner brake pad (with expanding spring) in brake caliper piston. (Arrow marked on pad - if exist, must point in direction of brake disc rotation when vehicle is moving forward). 9. Install outer brake pad into brake carrier. 10. Bolt brake caliper housing to brake carrier using two guide pins. Tightening torque is 25 Nm. 11. Install both caps. 12. Insert retaining spring into brake caliper housing. Important: Depress the brake pedal firmly several times while the car is stationary so that the brake pads adjust to their normal operating positions!!! Check brake fluid level and top up if neccessary!!!

Oct 01, 2009 | 2004 Audi A4

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