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Oct 12

Posts: 2

Jerry175 says:

CB500 brake problems

Hi Ive got a 1997 Honda CB500 with front brake trouble, Ive bleed the system but the lever is still heavy to pull and comes right back to the bar. Does anyone know why this is an how I can sort the problem.


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  • Posted 3 years ago (06 October 2012 10:45)

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Mar 09

Posts: 9006

jaffa90 says:


Welcome Jerry175,more info really,

what was the original problem?

did you let all the fluid drain out?

was the lever heavy or free to pull when bleeding?

From what you say your master cylinder piston is seizing up and you have air pockets in the system.

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Jan 08

Posts: 7738

kcmc says:

Honda CB 500 1997 Model?

Hi Jerry175 and welcome to the site:smile

All the above that Jaffa90 says,and it does sound like the master cylinder is defective,if you don't understand how to repair or replace parts on the brakes it would be advisable to have it repaired by a professional,for safety reasons.

Good Luck


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Oct 12

Posts: 2

Jerry175 says:


Hi guys thanks for the replys, the last owner said he had put I new piston kit in the master cylinder. When we bleed the system we did not let all the fluid drain out, it has a Brembo caliper and braided brake line but might have to see if the piston kit was fitted right.

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Jan 10

Posts: 264

chriscg says:


maybe a little washer/seal put in the wrong way round?Or maybe the master clylinder is kaput?

 applying a certain/equal pressure to the lever,does it move in further or hold position?

  Heavy to pull:maybe thats the fluid being pushed past this wrong way round seal/duff master cylinder bore?

  Do you hold the lever in whilst you tighten the bleed nipple?Just asking as the easiest fix is always best.


  im drinking fosters so hope this makes sense. todaroo!!

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