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Front Break Problem???

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Front Break Problem??? - 6/8/2008 1:07:15 PM

icreepin

Posts: 17
Joined: 6/7/2008
Status: offline

I had some vibration from the front when I would apply the front break so looking on the forum I found the possible solutions.

After taking my tire off and changeing the warped rotor I put the wheel back on and now I lose front break preasure. I thought the breaks needed to be bleed so I did that but the issue is still there. then I took the break fluid cover off and rebleed the breaks again and the bike still loses preasure. By all respects I think there is a air bubble (very large one) but not sure how to get it out any help? I did change the pads.

Post #: 1

RE: Front Break Problem??? - 6/8/2008 2:26:30 PM

Jeff1980

Posts: 146
Joined: 9/16/2007
Status: offline

You may need to bleed the master cylinder. Basically the same process as bleeding at the caliper but a little bit messy. Wrap a rag around the banjo bolt that connects the brake line to the master cylinder to keep the fluid from spraying everywhere. Crack the bolt loose with pressure on the lever and you should hear your air bubble escape.

< Message edited by Jeff1980 -- 6/8/2008 2:35:32 PM >

(in reply to icreepin)

Post #: 2

RE: Front Break Problem??? - 6/8/2008 6:06:17 PM

icreepin

Posts: 17
Joined: 6/7/2008
Status: offline

ok I did that. now the break lever really only feels spongy when I am riding if I pump it enough when I am sitting still then I get presure. this may sound odd but is it posible to have more then one air bubble or so many that bleeding may need to be done over and over?

(in reply to Jeff1980)

Post #: 3

RE: Front Break Problem??? - 6/8/2008 7:45:50 PM

dinez74

Posts: 1177
Joined: 5/14/2007
Status: offline

Check your fork as well. Forks that not in good condition,bent, not sync. properly and leaking can cause vibration to the wheel when you apply the brake.

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Post #: 4

RE: Front Break Problem??? - 6/8/2008 8:19:09 PM

icreepin

Posts: 17
Joined: 6/7/2008
Status: offline

to cure the vibration I changed what I was told was a warped rotor (just bought the bike) from the old owner. I cant check the vibration cause now the front break is spongy so I blead the breaks then tried the master break blead suggestion. but when I pump my breaks and the bike is sitting (running or not) I can get preasure on the break lever when I start moving I lose all break preasure in the front breaks. So before I can see if the vibration issue is fixed i need to fix the break preasure issue that I just got after changeing the rotor.

(in reply to dinez74)

Post #: 5

RE: Front Break Problem??? - 6/8/2008 8:30:41 PM

900FighterRR

Posts: 110
Joined: 9/18/2005
Status: offline

you have no pressure? There is air in the system for sure, especially if you see no oil leaks anywhere. Its possible that your master cylinder is drawing air in but not letting any oil out. I''ve heard of that happening. Try tapping all the s on the brake lines and tapping the calipers to vibrate and free up any air trapped in these kinks. Then re-bleed them and make sure your bleeding them correctly by not drawing any air back into the system. Thats the best I can give you, I have a similar problem and I''ve just gotten used to my lever being a little soft even with aftermarket SS lines. It sucks...

(in reply to icreepin)

Post #: 6

RE: Front Break Problem??? - 6/9/2008 5:05:12 AM

icreepin

Posts: 17
Joined: 6/7/2008
Status: offline

when I say my lever is soft. I mean while ridding I have no front breaks there is no preasure at all. but when I stop I am able to pump the front breaks and get preasure. I am going to take it into my work today and we have an automatic bleeder so gonna see if we have an adapter that will fit over the master break cylinder and then bleed them like that.

(in reply to 900FighterRR)

Post #: 7

RE: Front Break Problem??? - 6/9/2008 8:51:21 AM

Ghusar

Posts: 323
Joined: 1/7/2008
Status: offline

depending on the mileage I wuld flush the lines anyhow. Its amazing how dirty those lines get.

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Post #: 8

RE: Front Break Problem??? - 6/9/2008 9:16:37 AM

stynkmonkey

Posts: 301
Joined: 7/14/2007
From: Leander Tx. USA
Status: offline

If you haven''t already make sure that there are no pin holes in the lines and that the bleeders are tight and not cross threaded or stripped or something that would cause air to get in the lines.

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Dragging a knee is a result not a goal.

(in reply to Ghusar)

Post #: 9

RE: Front Break Problem??? - 6/9/2008 3:04:42 PM

icreepin

Posts: 17
Joined: 6/7/2008
Status: offline

ok talked to a guy at my job who worked on hondas for over 15 years he told me just to get a bleeder pump and do it that way. my issue is there is alot of air in the lines. So will keep you all updated.

(in reply to stynkmonkey)

Post #: 10

RE: Front Break Problem??? - 6/9/2008 5:35:10 PM

icreepin

Posts: 17
Joined: 6/7/2008
Status: offline

anyone have a good site or know of a good bleeder tube kit I can buy? seems the kit at my job the tube they used kept suckin air back into the bleeder tube.

(in reply to icreepin)

Post #: 11

RE: Front Break Problem??? - 6/9/2008 5:35:53 PM

icreepin

Posts: 17
Joined: 6/7/2008
Status: offline

oh there isnt anything wrong with the bleeder nuts or anything this problem started after the rotor got changed.

(in reply to icreepin)

Post #: 12

RE: Front Break Problem??? - 6/9/2008 5:38:29 PM

Ghusar

Posts: 323
Joined: 1/7/2008
Status: offline

the easies way is this

get 2 guys and a quart of brake fluid

one pumps tye front breaks and the other bleeds them into a cup
keep doing that until the brake fluid is clear

Viola!

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Post #: 13

RE: Front Break Problem??? - 6/9/2008 5:55:40 PM

sas1810

Posts: 103
Joined: 4/19/2008
Status: offline

http://cgi.ebay.co.uk/kawasaki-versys-k1200r-XT660R-XT660X-MT-03-MT-01-FZ6-FZ_W0QQitemZ360057754963QQihZ023QQcategoryZ25644QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

thats the kit i used on mine, front and rear brakes completely done in 20 mins. new fluid and no airlocks. brill kit

_____________________________

1994 CBR900RR US Spec
pazzo race levers
harris rear-sets
V&H SS2R silencer
hand polished frame, swing, wheels
re-built myself all in 4 weeks

(in reply to Ghusar)

Post #: 14

RE: Front Break Problem??? - 6/9/2008 6:15:36 PM

icreepin

Posts: 17
Joined: 6/7/2008
Status: offline

ok where, can i get it or what stores sell it?

(in reply to sas1810)

Post #: 15