Whats wrong with my dirt bike brakes....?

Question

ok. i have a 1998 ktm 300 mxc. i will be out riding my bike for the first time in a couple of weeks and when i use my brakes alot, they will go out. ive tried bleeding them and they still dont work. but then, they will go back to normal after about 10 min. once i ride it for about a week, they wont go out. so please help.

Answer 1

ride it more often

Answer 2

Try bleeding them again.  Also have a look at the pads to see that you don't have oil on them.  A fork seal may be leaking onto a disc which would explain why it is intermittent as it dries up after a while.