I ran the SE/AC on my bike for awhile. Routing the blow-by directly into the intake bothered me so I checked after about 300 mi and oil was all over the intake. Cleaned it and put the stock AC back on. Looking for ways to re-route the blow by. Checked out DK customs. They have a DIY one. Saw a youtube vid on it but not much help to me. So any ideas would be appreciated, pics would be great too. Thanks!!!

 

Attached is a link to what I did back in April with my SE/AC. It's been 4 months (1400 miles give or take) now and the filter at the end of the hose is oil covered but isn't dripping on the floor. Guess it's getting blown off while riding. In any event I'm happy because it's clean at the intake.

https://www.hdforums.com/forum/sport...l#post16165434

 

 

I use a customized completely discrete breather system from DK for my AN deep cut inverted AC and external breather bolts with my v-stack AC....but would probably prefer the DK's stealth breather system over the external breather bolts. I also believe there are other brands with the same/similar design....and somewhere in the sporty forum. This breather goes up and between the cylinders so you would not have blow-by since the mist would go back into the cylinder and burn off and allow the cylinder to breathe ...effective use of gravity vs going down and dripping (unless you use a catch can) or blowing onto your bike. The external bolts did create a light mist on the rear of my AC.







http://dkcustomproducts.com/91-UP-SP...IN-EVO_c75.htm

 

https://www.hdforums.com/forum/sport...l#post15958046

 

I have the Arlen Ness Derby Sucker, but its very similar to the SE.
I did basically the same thing as cvaira (a few years before ) but
used AN fittings instead. Here's a pic;



hth,

T.

 

How you did it was kinda what I was thinking except I did not think about putting the hose on them blow-by tubes. That was one of them "duh" moments. I am going to order a filter and a catch can. And run it how you did. If I run the filter down by the kickstand I think will run braded hose. But I am going to try the catch can hanging right below the filter first. Thanks again for your post all.

 

As stated, DK Custom has many designs for most A/F's and extensive write up with pics and benefits.

 

I just ordered a diy kit, catch can and some extra hole clamps from DK customes. I am out of town on vacation they should get in when I get back.

 

One thing to consider with the above approaches. None account for failing umbrella valves. Umbrella valves have a reputation for having a short effective life span.