Simplest thing is to run a hose down under the bike from the crankcase vent

 

 

Or, something from DK Custom Products.

http://www.dkcustomproducts.com/91-u...in-evo-c75.htm

 

Isn't that 91 a bottom breather? Just let it hang down..... If you have connections on the backing plate of the air cleaner you will need to cap them off....

 

That's up to you.

There will be some oily mist coming out of the breather hose. The catch can is intended to contain that oil as it condenses out.

I don't run one, and just figure on de-gunking the underside of the bike once a year or so....which it will need anyway. If you run one, figure on cleaning it out once a year or so.

Bottom line for me is those cans are a needless clutter and an extra periodic chore. Some.guys like them, though. Your call.

 

 

You should start a thread on all the specifics you did / doing to accomplish this on a carbed bike!
A lot of us enjoy real hands-on work.
Next-let your bottom breather be a bottom breather. It works best that way as stated.

 

Quick question, but why do you imply the bottom breather aspect of his engine allows the vent to just hand down under the engine?

I ask because my top breather does exactly that, just with a longer hose. Since I've got umbrella valves it's more of a one-way flow type system than the bottom breather so even less need for a filter, unless I'm missing something.

 

Not implying anything. One can do what ever he or she wants... I used to run a breather filter at the end of my top breather but don't any more and on my Shovel (bottom breather) I have a short piece of 3/8" fuel line that goes straight down below the frame a little. No issues with either.. I guess I say hang down because isn't the nipple that comes off a bottom breather a 90* nipple?