Well What i have done to it is; put new seals all round and a new stator plate and gaskets. the oil 100% comes out the lh case. as if i take it off it drops about 1/2 a pint its not clear oil what i put in its blackish, if i may say so. thats all i really know.another thing is that my lh bearing has gone for the cranks but there is no noise just slight movement. that might be it i dont know!
THanks