disc brakes

[kdx200mx17]

recently been rebuilding my bike, got new brake pads on, well when I filled up the resevior with brake fluid, the brake lever is way too easy to pull in and doesnt work. I read my manual and bleeding the brakes is confusing, can any one help me out.

 

[saveaux]

The only way that I could bleed my front brakes was to take off the caliper, and lever. Put the caliper in a vise, with the lever and resivour down LOWER than the caliper bleed them. This was the air in the lines travel up to the top and out the caliper while you bleed them. This was the only way that I could do it. Then again that doesn't say much for my mechanics.


edit: WOW, I wrote this during a commercial break of the Superbowl and had no idea it was this poorly writen. I must have been way more trashed than I thought. :aj:

 

[KDX CRAZY]

I have not had to bleed my kdx yet , but it should be the same as any other bike .

Get a piece of fish tank tubing ( plastic see thru piping ) small enough to go over the bleeding nipple on the caliper .
Pull over the nipple and put the other end into an empty container .
Remove the reservoir lid and make sure it stays full .
You will need someone to pump the brake lever a few times and hold it in as far as possible . Now loosen the brake nipple slowly until you see the brake fluid start moving out the nipple . The brake lever will start moving towards the grip as it looses fluid , when the lever touches the grip tighten the brake nipple and only then release the brake lever . Check the reservoir is still full and keep on repeating the process until you have the brakes working and you cant see air bubbles coming out down the plastic tubing .

 

[KDXMAC]

nice and easy.................

 

[kdx200mx17]

alrite, got some ppl to explain it to me in school too.. seems easier then the book told me. will do it tonite after skiing.

 

[19Brendan81]

I bled the brakes by myself on the weekend, there is no need to pull the caliper off. Heres how I do it.

Place clear tubing over the nipple, and run it down into a colecting container that has a bit of fluid in the bottom. This stops air bubbles running back up the clear pipe and confusing you when you start bleeding. Then with the top of the resevoir off, make sure there is heaps of fluid in there and then start like this...

Open nipple
Pull brake lever all the way in
Close nipple
Let brake lever out

You will need to do this over and over until when you are pulling the brake lever in there is only fluid flowing out the plastic pipe, and no air bubbles whatsoever. It is vital you make sure the resevoir stays full, or it will just suck in more air To test you brakes leave the nipple shut and pull on the lever, it should be hard as a rock without any sponginess to it whatsoever.

Whilst you are at it, go down the hardware store and buy some 4mm alan head bolts to replace the piece of crap screws that are used to hold on the top of the resevoir. These things always tend to foul up and then you strip the head trying to pull them out. Will save you grief in the future I promise you.