best way to bleed front brakes

Larry
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Larry
Edited Date/Time 9/21/2017 7:24am
after rebuilding calipers?
Took me most of the day to get the pressure up.
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floridaflash
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floridaflash 10/26/2009 10:40am
10/26/2009 10:40am
vacum pump is the best way for me, onlt takes a couple of minutes
Larry
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Larry 10/26/2009 10:51am
10/26/2009 10:51am
floridaflash wrote:
vacum pump is the best way for me, onlt takes a couple of minutes
what brand?
there are some out there that do not work very well.
SteveS
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SteveS 10/26/2009 12:38pm
10/26/2009 12:38pm
MityVac

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Larry
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Larry 10/26/2009 5:51pm
10/26/2009 5:51pm
williamsmotowerx wrote:
A syringe, push from bottom up.
Thats how I started. how much tubing should I use between the syringe and the nipple or does that matter.
JYZ566
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JYZ566 10/26/2009 5:54pm
10/26/2009 5:54pm
Autozone sells the mityvac vaccuum bleeders. I only have about 4-6" of tubing between the nipple and the suction on my mityvac. Takes about 5 minutes max. I just rebuilt both calipers this weekend and took me more time to clean up than it did to actually bleed the brakes. Just make sure the brake fluid doesn't get below the sight window because then you have to start over again.
eeazye
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eeazye 10/26/2009 6:15pm
10/26/2009 6:15pm
The quick and cheap way is to take the brake master cylinder off the bars and suspend it up from the celing with the line attatched. Tap on it with a screwdriver handle and work the lever a few times. The air will travel up the line and in the resevoir. It may take a few times, but will get the job done.
Cygnus
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Cygnus 10/26/2009 6:27pm
10/26/2009 6:27pm Edited Date/Time 10/26/2009 6:27pm
I also like to push both pistons in the caliper all the way in after I get some brake this forces the air out the master then refill as I pump them up.
Larry
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Larry 11/16/2009 10:52am
11/16/2009 10:52am
Thanks guys.
The syringe with some clear hose safety wired to it worked like a charm.
I used your idea on the rear this week Cygnus and had factory feel brakes in a few minutes.
RACEGUY
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RACEGUY 11/16/2009 3:35pm
11/16/2009 3:35pm
Yessir Cygnus! I'm surprised at the number of people who don't understand back-bleeding brakes.

Add a Mityvac with nice tight hose connections, and bleeding becomes a no-brainer.
HCMX
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HCMX 11/16/2009 6:22pm
11/16/2009 6:22pm
Back bleeding it the best invention ever... takes two minutes and your done
neverwas 11/18/2009 2:58pm
11/18/2009 2:58pm
williamsmotowerx wrote:
A syringe, push from bottom up.
That's the ticket, very easy and very effective.
noob
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noob 11/5/2010 11:42am
11/5/2010 11:42am
JYZ566 wrote:
Autozone sells the mityvac vaccuum bleeders. I only have about 4-6" of tubing between the nipple and the suction on my mityvac. Takes about 5 minutes...
Autozone sells the mityvac vaccuum bleeders. I only have about 4-6" of tubing between the nipple and the suction on my mityvac. Takes about 5 minutes max. I just rebuilt both calipers this weekend and took me more time to clean up than it did to actually bleed the brakes. Just make sure the brake fluid doesn't get below the sight window because then you have to start over again.
Is this the Mityvac kit a few of you are talking about?



Is it easier to use / does a better job than one of these?
Craze
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Craze 11/5/2010 12:27pm
11/5/2010 12:27pm
HCMX wrote:
Back bleeding it the best invention ever... takes two minutes and your done
x2
Camp332
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Camp332 9/12/2017 8:36am
9/12/2017 8:36am
I'm going to try this method out today. This 04 YZ I've been restoring has been fun up to this point of bleeding the front brake. Sorry to bring a post back from so many years ago, but maybe it will help others.
Acidreamer
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Acidreamer 9/20/2017 11:05am
9/20/2017 11:05am
I bought a vacuum pump at harbor freight. Works great
Camp332
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Camp332 9/21/2017 7:24am
9/21/2017 7:24am Edited Date/Time 9/21/2017 7:24am
You know, I've done some brake bleed jobs on some other bikes and did well. Even after trying this method on my 04 YZ125 project I couldn't get the lever hard. So I ordered a master cylinder rebuild kit(which is scheduled to arrive today).

As far as your site, and the instructions, they were great.

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