I just put some +3 lines on my front brake and now I can't get them to bleed. I began with the conventional pump the handle, then hold it and crack the bleeder open. I even bought a vacum pump and tried that but it still won't work. It won't even build enough pressure to move the pads.
I would appreciate any tips you may have.
Thanks

 

I'm having the same problem with my wife's recon. Anyone?

 

Are they the braided lines? Mine were a real bear to bleed.

The first thing I did was take the calipers apart and clean them really well..(though this should not be a problem on new raptor)....

Take the line off the caliper side and pour in some fluid in the caliper itself. Tehn pour some fluid in to the line until it starts coming out the other end. (use a rag of course to catch drippings ). This helps insure that the line and caliper are full of fluid and somewhat air free.

After this is all said and done....leave the cap off the resevoir and do your normal bleeding process...making sure that the resevoir is always full. This should work for you.

I think your getting air in the line somehow...it is very hard and tedious to get it out. Tap the lines a few times with a screw driver to help free any air bubbles. To make things easier on the eyes..and ground......hook a fish tank hose to the nipple and run it into a glass jar filled with brake fluid.

 

yea its most likely air in the line u have to be real careful about that

 

Try opening the bleeders and let the fluid just slowly run through for a while just makesure to keep the reservior full. I'm not sure if it willflow by itself on an atv but it works on cars.

 

Yeah, do what raptor58 says. ziptie the lever to the handlebar and fill the reservoir with fluid. leave the bleeders open and see if they will gravity bleed. i remember my lines were a real pain to bleed when I first put them on.

 

Thanks for the suggestions guys. Problem Is I have allready tried all those solutions. I'm going to go tomarrow and buy all new crush washers. I think I am getting air in the line somehow. I've never seen so much air in brake lines before.

 

I ran into the same problem a few weeks ago, I thought the brakes would never build up pressure. Keep using your pump, here is the steps I used, you just have to be patient and keep at it:

1) Connect pump to left brake caliper and open bleed screw all the way and start pumping like crazy and obviously keep filling the resevoir with brake fluid.
2) After doing the left side for quite a while, close the bleed screw and connect pump to the right brake caliper and repeat the process.
3) After you have done this for a while, now move back to the left caliper and pump up your pump to where it will not read any higher pressure and now slowly and barely open up the bleed screw and see if there is any air bubbles coming out. Continue doing this until most all the air bubbles are gone.
4) Now remove the pump and have all your bleed screws tight and start working your brake handle. I mean just keep pumping the brake handle, I had to do this on mine for probably 10 minutes and finally I started to build pressure. I kept at it and eventually the brakes were awesome.

One good tip on front brakes, after you have bleed your brakes, get a zip tie and when you can leave your bike over night or even longer, pull in your front brake lever as far as you can and put the zip tie on it and leave it. You will be amazed after a couple days how much tighter your brakes will be after that. I believe what happens you end up getting rid of minute bubbles of air from the lines by doing this, thus making your brakes even stronger!