Need help with Front Brake - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 9 (permalink) Old 06-06-2011, 08:55 AM Thread Starter
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Need help with Front Brake

I accidently got air into the brake line coming out of the reservoir. I used a One Man bleeder and a quart of brake fluid trying to get pressure to the brake lever. No luck. Fluid comes out with no air bubbles. I tried bleeding the brakes the old fashion way. No luck. I have been bleeding the system for 6 hours and cannot get pressure to the brake lever. Any suggestions will be appreciated. The brake was very good until I tried to rotate the reservoir.
Jim

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post #2 of 9 (permalink) Old 06-06-2011, 09:25 AM
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I use a short piece of hose and a big syringe to push the fluid back up through the bleeder screw to the master cylinder,be sure to not get any fluid on the paint .It is some of the best paint stripper known to man.

I think you will have to use regular bleeders for this ,since I believe the speed bleeders have a one way check valve in it.The fluid will push any air back up into the reservoir and you need to keep an eye on it and pull some out as it fills up.When you no longer see bubbles your brakes should work normally.




If you see it on my bike I did it
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post #3 of 9 (permalink) Old 06-06-2011, 09:33 AM Thread Starter
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Thanks Denny, I'm open to any suggestions. I'm now on my second quart of brake fluid. I've got the cleanest brake lines in the history of the Vulcan.

JM2001

" Loud Pipes Risk Rights "

2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
upgraded mirrors
Pic up coil mod done
degoated
All LED lighting
Upgraded Mosfet rectifier
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post #4 of 9 (permalink) Old 06-06-2011, 05:49 PM
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This may sound crazy !!,,but it works most of the time. check you have no leaks(obviously),,,then leave the reservoir top off,then tie the brake lever to the throttle grip with reasonable pressure,,leave for a few hours (over night is better). this will allow the air bubbles to escape. undo the tie and the brakes should be working fine all being well. its never failed to work for me yet. good luck.
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post #5 of 9 (permalink) Old 06-06-2011, 06:46 PM Thread Starter
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Thanks Rev, I've heard about that before. I might as well give it a try. I"ll leave it overnight.

JM2001

" Loud Pipes Risk Rights "

2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
upgraded mirrors
Pic up coil mod done
degoated
All LED lighting
Upgraded Mosfet rectifier
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post #6 of 9 (permalink) Old 06-06-2011, 07:13 PM
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Quote:
Originally Posted by JM2001 View Post
Thanks Rev, I've heard about that before. I might as well give it a try. I"ll leave it overnight.
I believe I would try Rev's suggestion first,if you have the time.He's right about it working most of the time,The method I suggested works well if you need to get back on the road quickly,but his is easier for sure.




If you see it on my bike I did it
VROC#30324
92 vn750(sold)
Current ride 05 1500 Classic FI
lovin' the new scoot



Quote:
"When all is said and done,usually more is said than done" UNK
Click on one x and drag to the other to read between them.

Psalm 40:1...
XI waited patiently for the Lord; and he turned unto me, and heard my cry. X
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post #7 of 9 (permalink) Old 06-07-2011, 12:13 PM Thread Starter
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Quote:
Originally Posted by denny6006 View Post
I believe I would try Rev's suggestion first,if you have the time.He's right about it working most of the time,The method I suggested works well if you need to get back on the road quickly,but his is easier for sure.
Thanks to Rev and Denny for your advice. Leaving the bike overnight with the brake lever in DIDN"T work, sorry to say. It was worth a try. I'll have to try Denny's first suggestion. If that doesn't work I'll be off to the dealership.

JM2001

" Loud Pipes Risk Rights "

2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
upgraded mirrors
Pic up coil mod done
degoated
All LED lighting
Upgraded Mosfet rectifier
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post #8 of 9 (permalink) Old 06-07-2011, 01:00 PM
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if you have speed bleaders try opening them both up at the same time.. this seemed to work for me.
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post #9 of 9 (permalink) Old 06-08-2011, 10:26 AM
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Having the same issue, Im gonna try the shooting fluid up through the bleeder today

1992 vn750, 16000 miles
seat shaved , lowered 2 inches in rear, ears shaved, degoated, cpanel is gone just a drag specialties 2.5" speedo
awaiting some pipes
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