bleeding brakes

[Scotty]

Erm i had to get a new master cylinder.
so i ended up landing one from a breakers yard.
anyway, fitted it this morning and have been bleeding the brakes for the past hour or so.
the brakes do work.
but there very spongy. and only seem to work at the last bit of leverage.

how do i make it so there as rock solid as
they where before??

Scotty
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Regards
Scott

[G]

I think it's best to use a syringe from the bottom of the system when bleeding into a fresh system.

Have you tried the 'tying the brakes overnight' trick?

[Scotty]

nope, please go on and tell me...
____________________
Regards
Scott

[Robby]

pull the lever back slightly and tie it in place with a bit of string. or a shoelace. leave it for a while, and the bubbles will rise up out of the line into the master cylinder, and the fluid from the master cylinder will fill the line.

the method that i use is to use distilled water bottle from a chemistry lab, tho any squeezy bottole will do. get some 6mm rubber or plastic tubing, and attach one end to the squeezy bottle, making sure its a good seal. squeeza the bottle closed, attach the other end to the open bleed nipple, and you have a vacuum pump. leave it for 5 mins, then close the nipple, disconnect the bottle, squeeze it again, and repeat the process. eventually you'll get some brake fluid and lots of bubbles going into the bottle.

oh yeh. hang the bottle over the handlebar or summat, so that the brake fluid in the pipe stops bubbles getting back in.

[kevo]

[Kickstart]

Hi

Cable tie the brake lever back the the handlebar overnight. Can work.

Another trick is to leave the bike to stand for a while, put some cloth around the top banjo bolt, pull the lever and the crack off the top banjo bolt and tighten it again

You can try using asyringe to push the fluid up from the bottom. I have a small vacuum bleeding kit that works quite well

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[Scotty]

and all these tricks should give me a nice tight brake.
not the spongy one i have at the moment
the only thing i have at the moment is like a pice of rubber
with the slit in the end to stop air getting back into the caliper.
i mean its been working but its not tight enough.
____________________
Regards
Scott

[Demonic69]

I did that! now my right brake caliper leaks
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Back on a Blade. Just feels so right.

[craigT19]

and you didnt think to tell me this BEFORE i went on your bike deano:?:
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Bikes owned :- 2001 nsr125, 1999 zx6r, 2006 yzf-r1, 2009 xmax 250, 2012 yzf-r1, 2015 MT-07
Current bike : - 2016 MT-10
BCF member pops. sadly missed 1945-2003

[Demonic69]

I only noticed when I got back
You're too much of a poof to ride the gixxer anyways
____________________
Back on a Blade. Just feels so right.

[WildGoose]

yeh these noobs on their highly engineered post 95 bikes

how many times did you stall again craig? how long did it take you to get on the road on deans bike??
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So in other words, he stopped you for being flagrantly in posession of a motorcycle in direct contravention of the Hippies, Darkies and People Whose Face I Don't Like The Look of (Police Powers) Act. 1976

[Scotty]

well the tie back idea is working nicly for the moment.
oh how can you stall!!!
espcially on a bigger bike, i would have thought it was easier, tisk tisk...
____________________
Regards
Scott

[Demonic69]

The Clutch is shit on the Gixxer, I'll give Craig that.
he didn't half whinge about the vibration though. I seemed to manage 400 miles on it though
____________________
Back on a Blade. Just feels so right.

[Scotty]

yeh but his a big woman

not like us men , hey dean.
dean was so secure about his sexuality he had a pink bike
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Regards
Scott