spongy rear break and fuked up front

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Old Oct 4, 2005 | 06:55 AM
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spongy rear break and fuked up front

so yeah, 90% of teh time my rear break has about 10% breaking power and the other 10 has teh full brakeing power... wtf... i have to pump it to get it to lock up??? anybody got any ideas? also, my front brake is hard as hell to pull in i have to lift teh lever up a lil and slide back, and its liek its geting stuck or suttin on teh sides, cause it slides back in spirts... like goes from normal to hard every 1/16 of an inch or so... its like _/_/_/_/_/ untill i get it all the way in ... im goign to try to ajust the lever when i wake up and see if that helps..
Old Oct 4, 2005 | 06:57 AM
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Re: spongy rear break and fuked up front

btw im talking about the 600r not the ttr...
Old Oct 4, 2005 | 08:08 AM
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Re: spongy rear break and fuked up front

Bleed that *****! Its air in the system or cooked fluid
Old Oct 4, 2005 | 08:16 AM
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Re: spongy rear break and fuked up front

Originally Posted by JohnnyP
Bleed that *****! Its air in the system or cooked fluid
yeah **** i wasent thinkin stright i forgot about that... but how the hell did air get in???
Old Oct 4, 2005 | 09:21 AM
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Re: spongy rear break and fuked up front

It happens sometimes Ive gotten spongy breaks from cooking the fluid, fluid turns watery and lets air past the seals. Change all the fluid out for fresh stuff bleed it real good and go for a good ride, if it gets spongy again look futher into it. Could also be a warped rotor or blown rear MC or caliper seals.

But like I said its probably just bad fluid or just needs bleeding.
Old Oct 4, 2005 | 01:16 PM
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Re: spongy rear break and fuked up front

the front master cylinder is probably rusted or dirty, clean and stuff some grease into the little rubber boot that the lever pushes in, and work it in. also bleed the front fluid.

The rear may be either boiling fluid (try to bleed with ABS 5.1, it has a higher boiling temp, and is compatable with dot4) or could simply be a warped rotor. (warped rotor will sometimes push pads away from the rotor surface causing you to pump them in order to get a grab again.)
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