brakes feel very soft - 600RR.net
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post #1 of 4 (permalink) Old 01-15-2009, 01:24 AM Thread Starter
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brakes feel very soft

i got a 05 cbr 600rr. I just changed the brake fluid and overhauled the master cylinder and calipers for the front. bleeding the brakes took forever it felt like the master cylinder wasnt even pushing anything. now when i ride around it fells the exact same very skwushy. i also got new rotors and brake pads but it has to do with the master cylinder because it didnt feel like this before. it felt firm and i felt resistance before the overhaul.
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post #2 of 4 (permalink) Old 01-15-2009, 01:27 AM
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Continue bleeding the brakes until the front stiffens up. It may take a while, but it sounds like you have some air in your lines.
post #3 of 4 (permalink) Old 01-15-2009, 01:28 PM Thread Starter
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if i just ride around a little. will it loosen the air in my lines and send it to the reservoir?
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post #4 of 4 (permalink) Old 01-15-2009, 02:40 PM
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Nope. Don't just ride it around. you can have air in the caliper or the lines themselves.

There is a bleeder at the caliper but sometimes tha air in the lines don't make it all the way down to the caliper.

To bleed the air out of the lines... Take off the res. cap then remove just one of the calipers. Pry the pads apart which pushes the pistons back into the caliper. Look in the res. while prying and if bubbles come up... then you had air in the line.
Take off the other and do the same. Then pump the lever to push the pads back in then wait a little while maybe even tap on the lines with something to break loose any air that might not have gone to the top then do it all again until no more air comes out.

Then bleed them once more at the caliper just to make sure.

That should get you going.

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