looking for an answer/solution other than "it has to much oil in it" for the blow back that stays in my filter then blows all over the side of my bike

i have read it could be a rocker box gasket is this hard or expensive to change?

is there a way to bypass my filter all together on an 03 ultra id rather it go to the ground than all over the side of my bike

 

Run some hoses off the heads thru the frame to the ground, getting ready to do it to my 09 SG. Did the same on my 95 FLHTC that was pullin 98 hp outta that sweet 80" evo, worked like a charm.

 

The oil level is about 1/8th inch below the full mark so it's not because it's over filled. No one has been able to offer much of an explanation on this except that "it happens"