I have a psr crank case valve, K&N folter. oil mist everywhere.
Any suggestions

IMG_3011 by D charles, on Flickr

1) Be careful not use too much oil on it.  There is always some positive pressure in a Ducati crankcase.

2) Confirm the oil level is not to high.

3)  Get an appropriate hose and raise it up near the seat.

Although they sell a lot of those type of crankcase vents, I'm not sure a K&N air filter is the correct item for this crankcase vent application. The stock crankcase vents' reed valve lets oil spray out its top and vent into a plastic pod container for emissions.

IMO, this type of K&N crankcase filter will just spew oil spray out of it all over the engine whenever crankcase pressure gets higher. When I see these, I expect oil spray all around them.

I replaced my crankcase vent with the fancy $70 Duckbike part, then ran a large 1" dia. washer hose out of its top towards the back of the bike under the seat. It now vents directly to the atmosphere, but the 12-14" hose is long enough to let oil spray drain back into the bike as needed- no oil spray comes out the end of it at all.

As suggested, raising this K&N "Crankcase" filter up and under the seat on a 12-14" long hose may provide enough length to keep your bike clean of oil spray like mine (98 M900).

Quote3)  Get an appropriate hose and raise it up near the seat.

QuoteAs suggested, raising this K&N "Crankcase" filter up and under the seat on a 12-14" long hose may provide enough length to keep your bike clean of oil spray like mine (98 M900).

Yup.


I suggest mounting oil catch tank also. That makes pretty big difference.

yes yes and yes

Im all for a catch tank/breather box.

Why mess with the stock setup? I've never had an issue with it.

Like many I run the stock catch tank/ breather box set up with a small K&N filter. Custom bike builders look to clean up the area, so relocated custom catch tank/breather box is an option.

I'll tty and find some links to old threads on this.

I just want to keep the mist off back tire for obvious reasons, mounting directly above the rear tire wont do that, I will rout somehow, never had one blow mist like this

http://www.ducatimonsterforum.org/index.php?topic=49770.0

http://www.ducatimonsterforum.org/index.php?topic=2469.msg923643#msg923643

For my HYM1100 track day motor, I made a ventilation volume / catch tank, and put the reed valve (for a Gilera Moped) at the end, and a small vent hose to a catch bottle.

It seems to have worked, since nothing has escaped to the bottle, but before shutting everything down for the winter, I will take of the lid, start the motor, and see if the reed valve actually works.       


20170411_195100 by torbjörn bergström, on Flickr

20170402_201438 by torbjörn bergström, on Flickr

  Very cool.

very nice,  I'm making one today, a bit smaller as to try to hide it

made a catch can

IMG_3022 by D charles, on Flickr

Crafty indeed.
I always thought one of those anodized alloy drink bottles would look good.