Is there an air cleaner/crankcase breather that will re use all the oil mist? I ride a 92 sportster. Thanks.

 

If you mean that it will route the oil mist back to the oil tank then no I know of nothing that does that.
Your only choices are to route the oil mist back into the combustion chamber (as per factory spec) or to vent it to the atmosphere either directly or thru a filter, I would recommend the later where it is vented rather than routed back to the combustion chamber.

 

or... vent to a catch can then dump the aerated mix back in your tank periodically.


people have tons of variations:

https://www.hdforums.com/forum/dyna-...ing-plate.html

 

How much oil could possibly vent out between oil changes? I've never needed to add oil between service intervals. If your umbrella valves are working, their should be minimal/no mess at all.

Looks like a solution in search of a problem to me. BTW, I have a 1991, so virtually identical to OP's bike. I've got the SE aircleaner, and my carb is spotless after 25 years, not sure what the big worry is about.

John

 

i don't really know to tell the truth. i'm getting ready to add a breather setup to both my bikes after seeing this in my sportster's combustion chambers:


i've been looking over people's designs. there are quite a few in these forums.

my hold up is i'm looking for a clear catch so i can see what's coming out before venting.

 

It will be interesting to see in external breathers affect piston deposits. Not sure myself of what variables can affect the pistons. Good information.

John

 

heres mine, no mist exits


above the a/c....little stinky when it s hot out.

 

Nice bike, your girlfriend must have "buns of steel."

John

 

I used a glass fuel filter, worked great.

 

Condensation and oil, usually a milky brown color. I've always had a decent amount of "juice" making a mess on many different engine combos. Seems like aggressive riding and long periods of 4000-4500 interstate riding made it happen