NC23 brake bleeding help wanted
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- Settled in member
- Posts: 6
- Joined: Tue Aug 10, 2010 9:04 pm
- Bike owned: cbr400 nc23
- Location: shrewsbury
NC23 brake bleeding help wanted
hi all im needing a little bit of help bleeding the front brakes on my wifes nc23 i have so far,
put fluid in the resivour
opened bleed nipple, pulled in brake lever,
let go of brake lever
repeated on other side and done about 3000,000000,00000 times lol
i undid the brake hose at the cylinder end and squeezed the brake and nothing came out does this mean there is a blockage??
any advise taken here thanks in advance gaz
put fluid in the resivour
opened bleed nipple, pulled in brake lever,
let go of brake lever
repeated on other side and done about 3000,000000,00000 times lol

i undid the brake hose at the cylinder end and squeezed the brake and nothing came out does this mean there is a blockage??
any advise taken here thanks in advance gaz

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Re: NC23 brake bleeding help wanted
Did you close the bleed nipple before you let go of the lever?
Are you using a peice of tubing attached to the bleed nipple?
Is the lever firm when both nipples are shut off.
Did you turn them enough.
This is how I do mine
pulled the lever till it was really stiff
kept tension on lever
opened nipple
fluid flows as lever comes back
close nipple before the lever stops
repeat a few times
Are you using a peice of tubing attached to the bleed nipple?
Is the lever firm when both nipples are shut off.
Did you turn them enough.
This is how I do mine
pulled the lever till it was really stiff
kept tension on lever
opened nipple
fluid flows as lever comes back
close nipple before the lever stops
repeat a few times
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Re: NC23 brake bleeding help wanted
I had problems with bleeding these brakes from a dry state (no fluid)
I ended up using a vacuum bleeder, I highly recommend these. Makes life a lot easier.
Older brake systems and old lines are fairly succeptable to air in them and as a result a loss of braking/weak braking at times. If youre really struggling , get someone with some bleeding tools to make sure its done safely and correctly.
Good luck!
I ended up using a vacuum bleeder, I highly recommend these. Makes life a lot easier.
Older brake systems and old lines are fairly succeptable to air in them and as a result a loss of braking/weak braking at times. If youre really struggling , get someone with some bleeding tools to make sure its done safely and correctly.
Good luck!
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- Settled in member
- Posts: 6
- Joined: Tue Aug 10, 2010 9:04 pm
- Bike owned: cbr400 nc23
- Location: shrewsbury
Re: NC23 brake bleeding help wanted
cheers for the reply guys yes thats
gullarm wrote:Did you close the bleed nipple before you let go of the lever?
yes
Are you using a peice of tubing attached to the bleed nipple?
no im not but does it really matter??
Is the lever firm when both nipples are shut off.
no, but i am doing it from dry?
Did you turn them enough.
i think so lol at one point the one was nearly all the way out.
This is how I do mine
pulled the lever till it was really stiff
kept tension on lever
opened nipple
fluid flows as lever comes back
close nipple before the lever stops
repeat a few times
gullarm wrote:Did you close the bleed nipple before you let go of the lever?
yes mate
Are you using a peice of tubing attached to the bleed nipple?
Is the lever firm when both nipples are shut off.
Did you turn them enough.
This is how I do mine
pulled the lever till it was really stiff
kept tension on lever
opened nipple
fluid flows as lever comes back
close nipple before the lever stops
repeat a few times
- petrolhead19
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- Bike owned: 2 x nc23's 1 x nc29
- Location: preston
Re: NC23 brake bleeding help wanted
i did my nc23 front brakes last week it was a pain in the a**e
in the end i used this method and they bled within 5 mins.
Get a lid off a spray can pop a hold in bottom enough to squeeze a pipe into ( so you have like a resivour )
Attach pipe to bleed nipple and fill cap half full with brake fluid.
Now this is the part that will get you out of breath lol
Make an air tight seal around the cap with your mouth and blow as hard as you can (obviously with bleed nipple open) before you stop blowing close the bleed nipple, repeat this on both calipers a few times.
This helps all the air in the system to rise up (as we all know its easier to get bubble to go up rather than down)
You will start to feel the lever get a bit harder and see loads of bubbles come out the resivour, after doing this afew times bleed the brake with the pipe and cap still attached.
Pull lever, open nipple, close nipple, release brake and pump around 10 times to build pressure, repeat this one both calipers a few times and that should be it :D.
I have kept the cap and pipe in a draw for next time i want to bleed brakes as its the quickest cheapest ans easiest way to do them.
Hope this helps
Adam
in the end i used this method and they bled within 5 mins.
Get a lid off a spray can pop a hold in bottom enough to squeeze a pipe into ( so you have like a resivour )
Attach pipe to bleed nipple and fill cap half full with brake fluid.
Now this is the part that will get you out of breath lol
Make an air tight seal around the cap with your mouth and blow as hard as you can (obviously with bleed nipple open) before you stop blowing close the bleed nipple, repeat this on both calipers a few times.
This helps all the air in the system to rise up (as we all know its easier to get bubble to go up rather than down)
You will start to feel the lever get a bit harder and see loads of bubbles come out the resivour, after doing this afew times bleed the brake with the pipe and cap still attached.
Pull lever, open nipple, close nipple, release brake and pump around 10 times to build pressure, repeat this one both calipers a few times and that should be it :D.
I have kept the cap and pipe in a draw for next time i want to bleed brakes as its the quickest cheapest ans easiest way to do them.
Hope this helps
Adam
xivlia wrote:because i can smell and see petrol squirting out from the exhaust. like little droplets
porndoguk wrote:That will be condensation, if you think its petrol get a lighter bellow the exhaust and see what happens?