Wanted to share incase this was not common knowledge yet.

I started to notice after my engine build that I was getting some oil spray onto the bottom of my seat and my back cyclinder head.
As I started to track it back, I came to the chrome breather plugs on my HD breather. When I pulled it, the o-ring was pretty shot, probably from the shop taking it off and on while doing my upgrade.

Anyway, when I went to the dealer for a o-ring replacement, the service tech let me know they had a bulletin out for this problem.

They now have a new designed chrome breather cap that has 2 o-rings instead of one, and this is supposed to help this problem. They said since they did not catch this while doing my build, they would order them for me for FREE and put them in. (nice guys).

If you have the HD Heavy Breather, might want to check your o-rings, and see if you can get the new ones for free.

Mike.