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shielsy |
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shielsy L Plate Warrior
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jaffa90 |
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jaffa90 World Chat Champion
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Robby |
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Robby Dirty Old Man
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BTTD |
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BTTD World Chat Champion
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tom_e |
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tom_e Brolly Dolly
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RhynoCZ |
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RhynoCZ Super Spammer
Joined: 09 Mar 2012 Karma :
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Posted: 09:53 - 21 Mar 2017 Post subject: |
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I had simillar issues with my ZX7R. Some pots were just sticking out, so I took the calipers apart, cleaned and rebuilt them. After about 200km something, that nearly put me off riding, happend. I was in front of a corner, just gently applied the front brake, like I always did, and not much happened. So I got into the corner quite fast and the moment I was leaning the motorcycle left, to make the corner the front brake started dragging. Very scary stuff. I had to pull over, had a few minutes to calm down, then I slowly rode it home, stopping 5 times during the ride home checking the front brake was not boiling. Got to my garage, went online and bought Nissin 4 pots.
I know this is the least popular answer, but swap the crap Tokico 6 pots for Nissin 4 pots (Nissin 6 pots if you can obtain a pair). Your issue might be elsewhere though, so investigate before you invest. My fluid never boiled though.
After I changed the calipers for Nissin 4 pots, I never had issues with the front brake ever again. I think it's got something to do with the diameter of the pots. The 6 pot calipers having smaller pots more prone to dirt related issues.
TEST: Take one caliper off, take the pads out, squeeze the front brake lever and then let go. During that watch all the pots in the caliper to go out and then return back. If they don't return, there's you problem. ____________________ '87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor
Last edited by RhynoCZ on 10:07 - 21 Mar 2017; edited 1 time in total |
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Polarbear |
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Polarbear Super Spammer
Joined: 24 Feb 2007 Karma :
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Posted: 10:06 - 21 Mar 2017 Post subject: |
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Yes, I agree Tokico six pots aren't the best brake in the world (total understatement ) but I never had that sort of issue with the ones on my busa.
I used to giver them an overhaul once a year and they were fine.
I do agree that changing them for Nissins is the easy if not cheap way to go. ____________________ Triumph Trophy Launch Edition |
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RhynoCZ |
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RhynoCZ Super Spammer
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Posted: 10:11 - 21 Mar 2017 Post subject: |
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Polarbear wrote: | I do agree that changing them for Nissins is the easy if not cheap way to go. |
Oh, I completely forgot to mention, it is cheaper to buy used Nissin 4 pots, than service the Tokico 6 pots. Also the Nissin 4 pots do not require so much care to perform well. Lastly, you may sell your old Tokico 6 pots, people still want them. Even the rebuild kits for the Nissin 4 pots cost far less money, not that you're gonna have to do the rebuild that often.
I had Nissin 4 pots from a RF 600, worked like a charm, no real difference in braking performance.
Word of wisdom, keep the mouting bolts from the Tokico 6 pots and use the banjo bolts from the Nissin 4 pots. For some reason my banjo bolts had different thread and the Nissin 4 pot mouting bolts from Suzuki were too short when used on my ZX7R. ____________________ '87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor |
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shielsy |
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shielsy L Plate Warrior
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Stalk |
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Stalk Brolly Dolly
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shielsy |
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shielsy L Plate Warrior
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ZX-7R |
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ZX-7R Banned
Joined: 24 Jan 2016 Karma :
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Posted: 00:32 - 29 Mar 2017 Post subject: |
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RhynoCZ wrote: | I had simillar issues with my ZX7R. Some pots were just sticking out, so I took the calipers apart, cleaned and rebuilt them. After about 200km something, that nearly put me off riding, happend. I was in front of a corner, just gently applied the front brake, like I always did, and not much happened. So I got into the corner quite fast and the moment I was leaning the motorcycle left, to make the corner the front brake started dragging. Very scary stuff. I had to pull over, had a few minutes to calm down, then I slowly rode it home, stopping 5 times during the ride home checking the front brake was not boiling. Got to my garage, went online and bought Nissin 4 pots.
I know this is the least popular answer, but swap the crap Tokico 6 pots for Nissin 4 pots (Nissin 6 pots if you can obtain a pair). Your issue might be elsewhere though, so investigate before you invest. My fluid never boiled though.
After I changed the calipers for Nissin 4 pots, I never had issues with the front brake ever again. I think it's got something to do with the diameter of the pots. The 6 pot calipers having smaller pots more prone to dirt related issues.
TEST: Take one caliper off, take the pads out, squeeze the front brake lever and then let go. During that watch all the pots in the caliper to go out and then return back. If they don't return, there's you problem. |
Had same issue over winter when it got down to freezing,would be riding along and the brakes would start gripping.Pumping them on and off seemed to free them but not entirely.Some days they would be fine though.MOT was due earlier this month so got the guy i use to have a look at them.He said some pistons were seized and it needed a strip and new seal kit fitted.Was about £70 for the kit plus labour. ____________________ Current Bike - 2000 ZX-7R |
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Old Thread Alert!
The last post was made 7 years, 23 days ago. Instead of replying here, would creating a new thread be more useful? |
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