hi,
i have a honda CB500s, and whilst driving it the other day, i tried to press the rear brake. it didnt work, and no matter how i pressed the pedal it wouldnt brake. the front did (obviously...).
when i got back, the rear disc was really hot- it scarred my fingers. and the brakes pads are full, but not recently changed. (i.e. they are worn in).
the brake fluid was fine (between upper and lower)
still is.
i just went to have another look and now it brakes fine. i havent ridden it long enough to see if it gets hot though....
what is it!?
thankfull for any suggestions
thanksHydraulic disc brake motorbike help please!?
It's time to rebuild your caliper. It's not tough, just clean and new rubber( 0 rings and dust seal ) be sure to put caliper grease on the piston.
The pain in the butt part is having to bleed the system. I hate bleeding brakes.
With the dust seal and clip off ,pump the brake pedal until the piston comes out, clean, lube and reassemble using a C-clamp to put the piston back in.
If your pads weren't fried before they probably are now after dragging.Hydraulic disc brake motorbike help please!?
had the bike sat for some time ? sounds like they might have glazed and over heated check to make sure the caliper is moving freelyHydraulic disc brake motorbike help please!?
Sounds like the brake diaphram has gone out, take it to the shop and have them take a look at it. Good LuckHydraulic disc brake motorbike help please!?
I had an old ironhead that did that on the front brake. The piston would lock up from time to time. Not too cool. The caliper needs to be taken off pulled apart for inspected. In my case, the caliper was not salvageable. A rebuild would not do. Hope you're luckier.Hydraulic disc brake motorbike help please!?
It may be that you are riding with your foot on the brake pedal.Hydraulic disc brake motorbike help please!?
The piston in the caliper is binding when things get hot. And disk brakes warm up even if you just riding. On bikes this happens allot because they tend to sit allot over a season and corrosion builds up inside the calipers. The saftest/best thing to do is bite the bullit and replace the caliper assembly.Hydraulic disc brake motorbike help please!?
Sounds like either the fluid return hole in your master cyl is clogged, or there is oxidation behind your caliper's piston seals. If the pads are dragging the rotor will heat up quickly.
Take it in for rebuild.
