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Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through August 01, 2008 » Bleeding brakes « Previous Next »

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Mr_gto
Posted on Friday, July 25, 2008 - 01:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I have seen a few threads on here about bleeding the brakes. Couldnt you just pour new fluid in with the old and bleed the brakes that way so no air enters the system, or is it necessary to drain and use the syringe method of pushing the fluid back into the brake reservoir?
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Id073897
Posted on Friday, July 25, 2008 - 02:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Couldnt you just pour new fluid in with the old and bleed the brakes that way so no air enters the system

Lots of people still do it that way. It's a bit tedious because of the small volume of the master cylinder.

Regards,
Gunter
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Deadduck
Posted on Friday, July 25, 2008 - 02:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

the old fluid showed signs of lower viscosity when I changed mine out. I would suggest that you drain and flush your brake system completely until you are getting 100% clean fluid coming out of the caliper, that way you lower the risk of contaminating the new fluid. A fluid change on mine gave me day and night differences on touch and feel.
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Mr_gto
Posted on Friday, July 25, 2008 - 02:25 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I will just have my wife be the refilling girl. I dont really mind going thru a bottle of fluid since my front brake is pretty important.
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Rah7777777
Posted on Friday, July 25, 2008 - 08:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It won't take much to go through ALL the fluid in front and rear. run half a quart/pint through the fronts and same for rear and you will be good to go!

no need to suck out the old stuff first.
also, I did this on my 03 and it made a pretty big difference in how she feels when braking! not as soft as it used to be!

good luck, its really really easy!

-Robert
www.xblights.com
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Caperken
Posted on Friday, July 25, 2008 - 09:46 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Does anybody have the Speed Bleeder part numbers for 2008 XB12Ss?
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Darthane
Posted on Friday, July 25, 2008 - 10:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It was easy enough solo to bleed the front breaks - just kind of time-consuming. I just did my '03 Firebolt when I replaced the break pads and between the new pads and the new fluid holy CRAP. What a difference. My XT's brakes both feel spongy in comparison; I'm going to bleed both of them this weekend (same method).

Unfortunately the rear requires a second person using this method...kind of hard to reach the pedal and the bleeder valve at the same time. >.<
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Kyrocket
Posted on Friday, July 25, 2008 - 11:14 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)



Don't mix the DOT 4 and 5! I've run into people who thought the bigger the number the better (mostly women, just kidding) but the two don't mix. Internals made for one can not necessarily handle the other among other reasons. Just my .02.
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Rah7777777
Posted on Friday, July 25, 2008 - 12:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

dot 4 only and you can easily do front and rear solo.

just pull a drain bucket or something to catch the fluid over to your tire.
clean and remove the resorvior cap for front or rear, which ever you are doing. get some vacuum hose (small rubber hose) that fits on the bleeder nipple. run the hose from the nipple to your oil can. I think its an 11 mm, crack the bleeder screw, slowly pump the pedal/lever and make sure the fluid resorvior stays full while you pump.
(its okay to stop pumping to fill the resorvior, as long as you don't take too long)

I kept pouring and pumping until I ran a half quart/pint through front and rear each.

then I would slowly pump the pedal/lever and about midstroke close your bleeder nipple. clean any mess you made, be careful to clean anything off the tires if you get it on there. and put your nipple cap back on and make sure your resorvior is at the correct level.

all done!
I did this on my 03 and it mad a BIG difference in how the brakes felt. I'm guessing previous owner never did it.

good luck! easy as pie!!
-Robert
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Mr_gto
Posted on Saturday, July 26, 2008 - 02:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thanks fellas, im going to bleed my wifes scg and my bike today. gotta get ready for Nashville track day next weekend!
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Ft_bstrd
Posted on Saturday, July 26, 2008 - 04:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Yeah, make sure to bleed the WIFE'S brakes. : D
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Arctic_firebolt
Posted on Thursday, July 31, 2008 - 11:45 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I am planning an LSL handlebar kit setup which includes a new brake line. Any suggestions, concerning brake bleeding with a new line would be appreciated.

Also, aside from the DOT4 any specific brand of choice out there?

Thanx!

(Message edited by Arctic_Firebolt on July 31, 2008)
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Point_doc
Posted on Thursday, July 31, 2008 - 12:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

LSL has speed bleeders...
http://www.spieglerusa.com/cfm/bleeder.cfm

(Message edited by point_doc on July 31, 2008)
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Chasten
Posted on Thursday, July 31, 2008 - 01:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

my brand of choice for brake fluid: Mercedes-Benz DOT4

...actually, it wasn't my CHOICE so much as it was free.
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Arctic_firebolt
Posted on Thursday, July 31, 2008 - 01:52 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I didn't see the speed bleeders for Buell. Will check again. Thanx.

Free always works of course. The reason I asked is that I have seen so much debate over oil, chaincase fluid, etc. I just wondered what anyone thought about the brake fluid.
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