DHZ 125 rear brake sticking

[the50king]

hey guys i was riden yesterday and my rear brake kept on getting stuck wen i put my brakes on, it was like it would pump it up real hard and wouldnt release or somethin, just wondering if anyone has had this problem before? and if they know wats goin on haha
cheers sam

 

[motorman]

First thing I would be doing is bleeding the brakes. Sounds like there is a blockage possible.

 

[sean01]

or the fluid is heating up and expanding by itself....

try putting new fluid thru the system

 

[the50king]

or the fluid is heating up and expanding by itself....

try putting new fluid thru the system

sweet man i have been giving them a bit of a thrashing into corners haha can i use just any old brake fluid?? is there a link some where that will show me how to bleed em n that??

 

[tim_]

http://www.miniriders.com/bike-setup/24239-achtung-noobs-your-new-pitbike-you-set-up-tips.html <<<< have a read through that and after the "greasing" section it shows you how to bleed and flush brakes...

 

[the50king]

http://www.miniriders.com/bike-setup/24239-achtung-noobs-your-new-pitbike-you-set-up-tips.html <<<< have a read through that and after the "greasing" section it shows you how to bleed and flush brakes...

Thanks man am going to have a go at it tomorrow

 

[needapitty]

have the same prob after changing my rear pads the sarvo

ill bleed the system tomoz and see if that helps

 

[mr_plow]

my rear brake is tight on the rotor aswell, trying to spin the back wheel it quickly stops. i changed the fluid tonight to DOT4 and its now even worse

 

[sean01]

have the same prob after changing my rear pads the sarvo

ill bleed the system tomoz and see if that helps

just bleed the master bro.... pump it up and crack the line bolt on the master till air/fluid comes out.. do it a couple of times and it should be sweet..

 

[sean01]

only other thing i can think of with the brakes seizing is the calipers are poorly machined...

or you's have the master cylinder rod over adjusted... try backing it off

 

[the50king]

only other thing i can think of with the brakes seizing is the calipers are poorly machined...

or you's have the master cylinder rod over adjusted... try backing it off

Ok ive bleed the brakes twice now and there still sticking and ive backed the rod fully off... Might be that they are poorly machined tho they were working great for the first couple of weeks, might have to buy new calipers or something?

 

[ilikemotorbikessoverymuch]

Old thread I know but did any of you fix it?

 

[my67xr]

they could of had rust on the pistons inside the calipers too, or sticky pistons ?
the disc pad slides may have been grabbing, eg no brake grease on them

a brand new caliper/master is cheap enough on ebay etc too

 

[rotn50]

Even the bracket slides that the caliper is attached to. These never get maintained until its to late and they seize.

 

[davespitty]

Yeah o I had the same prob real sticky stripped down both calipers and inside of every piston rust so real light sand grease and brakes are like new