So, the oil doesn't get up under the bike, or gunk up the rear wheel when just vented out into the environment like that?

 

My easy peasy solution....just clean it every 1000 miles or so. Dutchy

HD1717 K&N

 

Here is mine. The larger hose goes into a vented catch can. There is very little oil in there after a few thousand miles.

 

using a stage 1 air filter under the stock cover (Low Rider) , machined a slot on both breather cavities, ran the tubes out, to the "t" and down to the underside.

 

Nope, not that I can tell by looking and feeling. Remember, it's just a small amount of mist which has lots of air and moisture compared to oil. Think about it, your oil level doesn't go down appreciatively in 5,000 mile OCIs does it?

The pictures of a milky substance in the throttle body shows oil and water. Hydrogen is a by-product of combustion. The airspaces in a crankcase get hot and cold which causes condensation that creates water that gets vented oil with oil - that milky snot that was depicted earlier in this thread. Internal combustion engines have been (and still are) venting crankcase vapors into the atmosphere for long time - like since motorcycles were dangerous and sex was safe.

 

This picture shows why I don't want that oily mess going into my intake any more. The front piston on the left has two of its valve pockets filled in with carbon. The intake manifold and the intake ports on my heads had a film of oil all over them.

 

Thanks for showing that. It's not only the oil but the condensation I get in my catch can.

 

Still waiting for the rash of engine failures due to running the stock breather setup......

 

Let's now have a useful post.

Here is my latest for my softail. Just emptied my catch can yesterday. Nice seeing all the gunk NOT go into the engine.

 

My "baby" leaves me a spot on the floor reminding me to empty the can