Alternatives to breather box?

Ah - I’ve going with those covers also & not thought of the absence of breathers. If you do tap, could you post photo of solution? Wonder how loop engines breathed?
Thanks

Forgot I posted this up on WildGuzzi a couple of years back: I may try without breather tubes at the beginning and see how it goes: link.

That’s assuming I ever get the bike built of course…italianmotor2014-06-30 16:04:13