Front Caliper Loose?

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01 Sep 2006 17:56 #73951 by Stvsnclr
Front Caliper Loose? was created by Stvsnclr
I just rebuilt the front caliper (single) on my '82 KZ550A with new seals and lube and installed steel lines. I don't get purchase until the lever is 1/3 - 1/2 pulled. The problem seems to be the there is a fair amount of play of the caliper on it's shafts. I'm not sure if it was like this before but I don't think so, the calipers on my ninja are tight. Is this supposed to be a tight fit in the 550, and any ideas?
Thanks!

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02 Sep 2006 04:12 #74021 by gpzrox
Replied by gpzrox on topic Front Caliper Loose?
The calipers are supposed to "float", so your KZ is probably OK. Actually, probably will work better now than ever. The Ninjas may need to be lubed, but the newer brakes may be different. All three on my GPZ were solid, lubed the pins and after a couple of days, the calipers moved ALOT, which my mechanic said is very good.

Bleeding is a pain, and maybe time to pay some attention to the master cylinder. Couldn't hurt on a 14 year old bike to get that rebuilt too.

84 GPZ750. Modded with stock Kawasaki parts: ZR-7 shock, ZX-6 coils, GPZ1100 throttle, EN454 brake, GPZ900 fuse box, etc. and non stock: Ken Sears mirrors, K&N filter, Pirelli Sport Demons.

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02 Sep 2006 07:42 #74040 by Stvsnclr
Replied by Stvsnclr on topic Front Caliper Loose?
Thanks rox, that gives me good piece of mind and saves me from tearing it down again chasing after a ghost. I'll try a couple more rounds of bleeding but I think I'm probably OK, with the built in "float" I guess I'll never get the hard feel that I have on the Ninja.
Steve

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02 Sep 2006 07:48 #74041 by Stvsnclr
Replied by Stvsnclr on topic Front Caliper Loose?
Oh yea, and good point on the master cylinder, I'll add it to my list - it's actually 24 years old! I bought it new when I was in college and just took it back over from my brother who had it for the past 15 years, so it's an old friend ;)

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02 Sep 2006 13:40 #74095 by BohicaBob
Replied by BohicaBob on topic Front Caliper Loose?
With brake components that old and use of DOT 3 brake fluid in them that was most probably rarely, if ever, changed, it's just good economics to rebuild your system with new components seals, pistons, etc.

Might as well rebuild your M/C too now that you've rebuilt the caliper.

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