can anyone give me a list of the he reasons that would make oil come out my carb cover (breather). 2004 electraglide 40k miles. piston rings? too much oil press.? recently replaced tensioners myself . bike seemed fine 4 100 miles. then oil shot out breather. took apart ,all gaskets and o-rings looked ok. thanks 4 helping me out guys. riley

 

crankcase overfilled

 

Check the O-rings on the breather if it has any, those are famous for cracking or getting ruined from over-tightening, had to replace one yesterday on my A/C

 

Ditto!

 

Too much oil in crankcase. Dealer told me to only fill to about half a quart low, engine hot, on jiffy stand.

 

I'd put just a little more but his statement is right. This is more than likely your problem.

 

Yep......did the same thing myself....just clean the filter and you're good to go...

 

Fill the oil till it says full and its gonna flow out the breather a bit, better off filling it half quart low.

 

..agreed..you don't need it filled all the way to the line on the dipstick, a little less will probably cure it..

 

Take a look at these early and late model backing plates. The earlier one has been Dremeled elongating the vents like the newer ones. They must of changed the design for a reason.

Late in the riding season last year I got some oil pretty constantly and all of a sudden after no oil previously. I have only ridden a couple of hundred and the weather has been cool. I think I will try this if it starts doing it again.

My bike is an '08 and has the old style, but I have no way of knowing how old the backing plate was when it was installed.

I have not tried to run a half a quart low and I really don't want to.

(I got these photos from someone on the site last year but I don't remember who otherwise I'd give credit.)

late model backing plate


earlier model backing plate modded