Rear Brake Problem?

[jeffs400ex]

My rear brake on my 400ex just randomly went out. It was enough brake fluid i think but if anyone knows of another reason of why it does not work please let me know. It is also for sale it is a 2001 400ex and i live in olney maryland.

[lghickman21]

Fluid probably just got hot, were you riding them hard? When the brake fluid gets hot, it will start to break down the viscosity of the fluid and it will start passing by the seals and your brakes will "quit working". Maybe that will help.

[JOEX]

Could be the master cylinder. I just ordered a rebuild kit for mine:ermm:

Originally posted by JOEX
Could be the master cylinder. I just ordered a rebuild kit for mine:ermm: is it hard to rebuild these? did you get the "moose" kit? i think they are the only company that makes them

[JOEX]

Originally posted by MixMasterMike
is it hard to rebuild these? did you get the "moose" kit? i think they are the only company that makes them
I don't know yet, I just ordered it from C&D Racing two days ago. I haven't read up on the details yet but I don't expect it to be too difficult.