........[ The position and angle of drilling of the breather outlet makes it difficult to get anything in it on a swinging arm bike without removing the primary chaincase./quote] Luxury ..... To do any of the aforementioned mods to a Plunger or Rigid requires *removing* the whole lump then the clutch and separating the tranny- though a simple task that could be done while doing all that for a routine check of the drive sprocket condition.....