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Bleeding brakes after installing new lines

7919 Views 8 Replies 9 Participants Last post by  jacob92icu
I searched and couldn't find any on new lines my calipers are rebuilt and new lines and I can't seem to get the front brakes working any help is appreciated I even got one of those vacuum pumps and messed with it for hours
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what i did with my line is to pump the line with the brake lever.first bleed the nipple of the master cylinder, then the left caliper, then the right. Always check the oil level when you do this.
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Is the brake lever still loose? Have you tried bleeding the old fashion way? Lossen bleeder valve, squeeze brake, tighten bleeder valve, release brake. Repeat this until there's no air bubbles. I'd start at the master cyclinder first if you're able to, then once that's bled go to the calipers. Just put my SS lines on last weekend with zero issues. Took awhile to get all the air out though.
what i did with my line is to pump the line with the brake lever.first bleed the nipple of the master cylinder, then the left caliper, then the right. Always check the oil level when you do this.
^ This....

Sometimes bleeding it by the calipers won't do the trick..especially after draining the entire line.

Start at the Master Cylinder (05/05 have a bleeder niple there...thank god) and move down to the right caliper, then left. Keep going in that order it should stiffen up.

Let us know! :bigthumb:
Here is the brake line bleeding procedure: Brake Line Bleeding | 2009 Kawasaki ZX-6R

This is from my 2009 service manual, but the procedure is the same for yours.
After installing new lines, the system is dry. A MityVac or other vacuum pump will certainly make the job much easier and a lot faster, but it is not necessary.

You need to bleed both the calipers AND master cylinder.

Do you understand proper bleeding procedure?
Trouble priming the master? it can be a pia, But you just have to keep pumping.
When the system is dry it takes a while if you are manually bleeding. Just keep pumping.
When the system is dry it takes a while if you are manually bleeding. Just keep pumping.
What Sixx said is true. Also could help if you crack one of the bleeder nipples on the calipers and fluid will slowly go through the system, this is called gravity bleeding. Once you start to get a little fluid come out of the caliper nipple, you can bleed as you normally would.
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