samdtr125

i posted on here that my dtr had an oil leak and i couldnt tell whaere it was coming from. well i cleaned my bike till it was spotless, took it out for a ride and iv discovered that oil is being blown from some kind of breather on top of the engine. what is this breather and how can i stop it doing this?!!!! any help much appreciated :-)

cheers for the advice. i'll give it a real good clean (could definetely do with one!) then il give you the latest. Sam

My 89 dtr125 seems to have a real problem. oil is obviously spraying out from some where as the whole engine is covered in oil. even the back wheel and disc have got oil on them! Any suggestions as to what it could be would be great!