1977 KZ1000 Sticky Front Break

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06 Nov 2013 09:35 #612237 by chconger
1977 KZ1000 Sticky Front Break was created by chconger
Hi All

First an introduction. I am just back into Z's after 20 years on four wheels. I went and purchased this beast imaged below last weekend.

So I have all winter up here to get things tuned up.

First up is a sticky from caliper. It seems that it will not release the wheel after a couple of squeezes. Is there something easy to try before I start pulling the system apart?

Thanks
Chris

1977 KZ 1000-A
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  • KZQ
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  • Walking Behind the Corn May Not Be All That!
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06 Nov 2013 09:40 #612238 by KZQ
Replied by KZQ on topic 1977 KZ1000 Sticky Front Break
I'd start with pumping some clean brake fluid through the system. Your symptom is usually either a plugged return hole in the bottom to the master cylinder reservoir or gunk between the piston and the caliper.

Bill

www.KZ1300.com
Riders:
1968 BSA 441 Shooting Star, 1970 BSA 650 Lightning, 1974 W3, 1976 KZ900, 1979 KZ750 Twin, 1979 KZ750 Twin Trike, 1981 KZ1300, 1982 KZ1100 Spectre, 2000 Valkyrie, 2009 Yamaha Roadliner S. 1983 GL 1100
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1985 ZN1300
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06 Nov 2013 10:05 #612242 by slayer61
Replied by slayer61 on topic 1977 KZ1000 Sticky Front Break
Brother, that bike is beautiful. Please don't be tempted to cut it all up.

Don't be ridiculous! It's only a flesh wound!

[strike]Wife's little bike... 1984 GPZ 550 Kerker and DynaJet stage I kit[/strike]
Wife's BIG bike......[strike] 1981 GPZ 1100 Kerker and [strike]factory FI[/strike] Mikuni RS34s W/ K&N pods[/strike] SOLD

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06 Nov 2013 10:11 #612243 by chconger
Replied by chconger on topic 1977 KZ1000 Sticky Front Break
Thanks ! -- My goal is to keep it stock as can be. The side covers are the only issue cosmetically right now. They became blue along the way,

I will try to run new fluid through and see if that cleans it out. Ill post back.

Cheers
Chris

1977 KZ 1000-A

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06 Nov 2013 10:35 #612245 by sbc1320
Replied by sbc1320 on topic 1977 KZ1000 Sticky Front Break
Sounds like time for a caliper rebuild. I just did a spare for the rear of mine even though my two front and single rear have all been rebuilt.

1980 KZ1000 LTD-B4(MK II engine) - Progressive suspension, MTC pistons, Dynojet Stage III, all wear items replaced, WFO paint scheme(1978), etc..

Past bikes- 2 1976 Kz900's, 5 1975-76 Honda CB750's, Honda 500 -4, Honda 250, Honda 125, Honda 100, Suzuki RM 250, Honda XL350, Kawasaki KLR 650, etc..

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07 Nov 2013 02:53 #612294 by ed spangler
Replied by ed spangler on topic 1977 KZ1000 Sticky Front Break
Welcome from East Tennessee!! :woohoo:
TennesseeZ Ed B)

Have 1975 Kawasaki Z1-B & 2003 Harley Davidson Heritage Softail Classic
Had Hondas, Harleys and many ,many Z Series Kaws both Std. & LTD's

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31 Dec 2013 11:26 #616873 by chconger
Replied by chconger on topic 1977 KZ1000 Sticky Front Break
Dusting off my old thread here.

I have the caliper off and apart. Lots of crud in there, so may explain a lot. Going to put a rebuild kit in, as the caliper bolt dust covers are gone.

I already purchased a kit for the master cyl. Even though it appear ok, the break fluid was pretty gritty, so I want to start out now with everything fresh. I am now stumped how to remove the circlip that sits in front of the C Clip.

I am refering to the lower middle part in this image here;

I have the "round" master

Any advice there?

Thanks and Happy New Year

1977 KZ 1000-A

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31 Dec 2013 11:34 - 31 Dec 2013 11:43 #616875 by sbc1320
Replied by sbc1320 on topic 1977 KZ1000 Sticky Front Break

1980 KZ1000 LTD-B4(MK II engine) - Progressive suspension, MTC pistons, Dynojet Stage III, all wear items replaced, WFO paint scheme(1978), etc..

Past bikes- 2 1976 Kz900's, 5 1975-76 Honda CB750's, Honda 500 -4, Honda 250, Honda 125, Honda 100, Suzuki RM 250, Honda XL350, Kawasaki KLR 650, etc..
Last edit: 31 Dec 2013 11:43 by sbc1320.

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31 Dec 2013 11:45 #616876 by chconger
Replied by chconger on topic 1977 KZ1000 Sticky Front Break
Part number 19. I cant figure how to get it out of there?

1977 KZ 1000-A

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31 Dec 2013 11:47 - 31 Dec 2013 11:49 #616877 by sbc1320
Replied by sbc1320 on topic 1977 KZ1000 Sticky Front Break

chconger wrote: Part number 19. I cant figure how to get it out of there?


Without having it in front of me, it looks like a sharp pointed knife or an awl could be used to spring it inward(while keeping the plunger partly depressed) so you can slip a small blade screwdriver under it. Be careful not to lose it if you need it and Good luck. I have rebuilt my calipers, but not my master as it was already changed out by previous owner.

1980 KZ1000 LTD-B4(MK II engine) - Progressive suspension, MTC pistons, Dynojet Stage III, all wear items replaced, WFO paint scheme(1978), etc..

Past bikes- 2 1976 Kz900's, 5 1975-76 Honda CB750's, Honda 500 -4, Honda 250, Honda 125, Honda 100, Suzuki RM 250, Honda XL350, Kawasaki KLR 650, etc..
Last edit: 31 Dec 2013 11:49 by sbc1320.

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31 Dec 2013 11:55 #616879 by chconger
Replied by chconger on topic 1977 KZ1000 Sticky Front Break
Thanks...I have been poking / prying at it with an awl for a while today. Its starting to look like one of the things that require a nights sleep to resolve.

Cheers
Chris

1977 KZ 1000-A

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31 Dec 2013 13:10 #616885 by sbc1320
Replied by sbc1320 on topic 1977 KZ1000 Sticky Front Break
Sharpen an old small screwdriver(smallllll) and give it a try while keeping the plunger depressed slightly. Just make the screwdriver blade really flat and pick at it.

1980 KZ1000 LTD-B4(MK II engine) - Progressive suspension, MTC pistons, Dynojet Stage III, all wear items replaced, WFO paint scheme(1978), etc..

Past bikes- 2 1976 Kz900's, 5 1975-76 Honda CB750's, Honda 500 -4, Honda 250, Honda 125, Honda 100, Suzuki RM 250, Honda XL350, Kawasaki KLR 650, etc..

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