Trouble bleeding front brakes!

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20 Sep 2014 08:34 #648163 by !Seymore
Replied by !Seymore on topic Trouble bleeding front brakes!

Markovich wrote: Hey, when I reply to a specific post does it come up tied in some way? I got to thinking that if I reply to one of you and don't specify my answer then it could get confusing. Just curious.


No, I don't think so. You should include a quote of the post you're responding to...

C.
79' KZ650-D2 [fsm] (Max)
83' KZ750-F1 LTD [clymers] (Kay)
82' KZ1100-D1 Specter (another project)
78' KZ650-B2a (J&H, A Project)
91' KZ1000-P (P = parts)

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20 Sep 2014 09:17 #648165 by kaw-a-holic
Replied by kaw-a-holic on topic Re:Trouble bleeding front brakes!
I'm not sure how you are bleeding your brakes but I have had great success using a hand actuated pump. They sell a good one at Harbor Freight for $35, a cheaper one for $20. The nice thing about the pump is it catches everything in a reservoir, this is how I change out my dirty fluid.

Jon
1977 KZ1000a1
Mesa, AZ
Phoenix Fighter Project

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20 Sep 2014 09:35 #648169 by gengomerpyle
Replied by gengomerpyle on topic Re:Trouble bleeding front brakes!
i use the same thing from harbor freight and had no problems bleeding the brakes


kaw-a-holic wrote: I'm not sure how you are bleeding your brakes but I have had great success using a hand actuated pump. They sell a good one at Harbor Freight for $35, a cheaper one for $20. The nice thing about the pump is it catches everything in a reservoir, this is how I change out my dirty fluid.


1982 GPZ750R1 ELR
1978 Honda CB750F SuperSport
1971 Honda CB750K
1970 Honda CL100 Scrambler

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20 Sep 2014 09:50 - 20 Sep 2014 09:50 #648170 by 650ed
Replied by 650ed on topic Re:Trouble bleeding front brakes!
No eBay APP ID and/or Cert ID defined in Kunena configurationHere's what I use (KD2222); it makes life soooo easy! I got it for my cars & truck, but it works great on the bike too. You must make a custom adapter using an extra reservoir cap. If anyone has an interest in how to do so please ask. Ed


1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Last edit: 20 Sep 2014 09:50 by 650ed.

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20 Sep 2014 17:18 #648207 by Markovich
Replied by Markovich on topic Re:Trouble bleeding front brakes!
OK, good advice on the vacuum bleeder. In fact I used one to bleed the system and when that didn't work I even reverse bled using the Mighty Vac as a pressure pump. I am not leaking anywhere I can see. Maybe I will try again with the vacuum bleeder. I don't know if it is wishful thinking but it seems to be getting better. I appreciate all the help and will let you know the results. Oh what fun we are having now! ;) Thanks again, Keith

1990 KZ1000P, 72k miles, 10 years in storage, new, bars, tires, chain and sprockets, seat, carbs cleaned, police equipement removed.

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21 Sep 2014 09:42 #648258 by ramtough_63
Replied by ramtough_63 on topic Trouble bleeding front brakes!

650ed wrote: Some folks have had success by tying the brake lever in the squeezed position over night which somehow let the air bubbles come up through the MC. Another thought is that you may want to try unbolting the splitter and calipers from the bike and turn them one way or another to let air bubbles out of any nooks or crannies they may be hiding in. Ed


I had to do what Ed advised after 3 days of bleeding, reverse bleeding, & Throwing tools
Came out next morning and wallah firm brake handle

1978 KZ1000 A2
Thrown Together To Ride Til Winter
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1982/83 750R/GPZ
1984 Goldwing 1200 Interstate
1982 Yamahopper QT50
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2 79 HD sporty XLH
02 HD FLSTS Heritage
60's HD Hummer
70's Honda 550 Four
70 Yamaha 100
and various enduros dirtbikes minibikes...
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22 Sep 2014 10:43 #648357 by floivanus
Replied by floivanus on topic Trouble bleeding front brakes!
Tying the lever back is the only foolproof way i have found to bleed old bike brakes works on all of them, old cb750, gs750 any kaw, crusty old harley.

I tie the lever back, and starting at the furthest caliper from the master, tap the brake parts with a wrench, working back to the master; everytime I tap the lines, caliper, splitter whatever buddles pop up in the master resevoir. And like I said, works on them all, and I have done some serious bike flipping and fixing.

my bikes; 80kz1000(project), 77 gl1000, 74 h2 (project)
Past; 78 kz1000, 83 kz550
Andrew
The following user(s) said Thank You: pete greek1, Markovich

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24 Sep 2014 19:28 #648693 by Markovich
Replied by Markovich on topic Trouble bleeding front brakes!
So, I tied the brake handle as described last night. At that time I noticed something that eluded me. When I installed the new bars the brake line from the distribution block to the M/C was too long. So in a moment of genius I left it with a S shaped bend in it. Well, I think it may be where the air was trapped but I woke up today and have a firm handle now. So, in conclusion "tie the handle" is once again the best way to get it done. Thanks all of you guys for the help. I'm sure I will be asking more questions as I carry on. :) Thanks again, Keith

1990 KZ1000P, 72k miles, 10 years in storage, new, bars, tires, chain and sprockets, seat, carbs cleaned, police equipement removed.

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24 Sep 2014 19:37 #648697 by 650ed
Replied by 650ed on topic Trouble bleeding front brakes!
I'm glad to read that tying the lever worked! Ed

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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25 Sep 2014 07:02 #648742 by KZB2 650
Replied by KZB2 650 on topic Trouble bleeding front brakes!
Awesome guys I had a heck of a time the last few times and since I'm changing out the lines and rebuilding the caliber and master cyl I've been worried about this. :) Will defently give it a try.

1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.

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06 Oct 2014 16:04 - 06 Oct 2014 16:05 #649873 by Yangdawg
Replied by Yangdawg on topic Trouble bleeding front brakes!
Can someone clarify the procedure for me? When you are tying the lever are any of the nipples open? Is the mc opened?

1983 KZ750-N2 Spectre
Last edit: 06 Oct 2014 16:05 by Yangdawg. Reason: Forgot a sentence.

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06 Oct 2014 16:19 #649875 by Markovich
Replied by Markovich on topic Trouble bleeding front brakes!
You will want all nipples closed and the top of the M/C open so the air can escape.

1990 KZ1000P, 72k miles, 10 years in storage, new, bars, tires, chain and sprockets, seat, carbs cleaned, police equipement removed.
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