[Mako98]

Hi everyone my motorcycle is leaking engine oil from the vent in large quantities. The bike does not smoke, runs well and there are no drops in performance. I have done a complete oil change and put in the right amount of oil but it continues to drive until it almost empties.

 

[wsmc831]

Sounds like inner seal failed allowing oil migration, not uncommon on 08's with the split oil design.

 

[Mako98]

Hello which internal gasket are you referring to?

 

[Mako98]

up

 

[Mako98]

I removed the right crankcase half to check ... am I wrong or the shaft oil seal is mounted upside down?