Is there anyone having the rear end oil pumping or expanding up the breather tube and spilling around the air box? Why does this happen and is there a fix? Thanx in advance.

 

EITHER YOU HAVE TOO MUCH OIL IN THE DIFFERENTIAL OR YOU HAVE WATER IN THE DIFFERENTIAL THAT MADE THE OIL LEVEL TO HIGH WHICH MAKES IT GO OUT THE TUBES ,LOWER THE LEVEL IN THE DIFFERENTIAL AND THAT WILL SOLVE YOUR PROBLEM

 

I always check the oil and it is right and I checked for water too didn't see any so I drained it and none.After a long ride it leaked again and now the oil is low . It's almost like something pumping it but it's not coming out that fast.

 

tee both vent lines together and re-route up under the handle bars.