Oil seepage R850R

[Tokoloshe]

Hi there,

I have an R850R 1994 model with 25 000 miles on the clock.

I have recently noticed that oil seeps/finely sprays from the engine on both sides after riding relatively fast (100-110mph). The oil blows back onto the brake pedal and gear lever. I'm not talking about huge amounts of oils, more like a fine mist. Needless to say, it's all over the boots as well!

The Haynes manual states that this could be caused by overpressure and that the breather could be blocked.
The oil level is fine and the machine does not seem to burn any oil unless it's been standing for a while on the side stand (2 weeks or so when starting delivers a lovely little cloud of blue smoke for a few seconds).

I'm not a technical person so I need some help here. If there is a bretaher, where is it located? If there is another problem where do I start looking? If the gaskets need changing, how expensive is this? I don't have a workshop or garage or even access to one so it would be a BMW job.

Also, tongue-in-cheek, why do BMW build such fast cars and such slow bikes?

Cheers

Tok