[Rith]

So I'm having a problem cleaning sand out of my air filter. I have a UNI filter in both my dirt bike and quad

After last ride I took them both out and the quad filter had quite a bit of sand stuck to the oil, so I rinsed them good with gasoline, then simple green and water followed by soaking them for awhile and then since they still didn't seam clean I rinsed the crap out of them with the UNI cleaner

All said and done the yellow inserts in both my filters picked up some sand while cleaning it off the other part and I can't seem to get it out. Not a lot but enough I am not comfortable with it

Any ideas? At this point I was going to try waiting for them to dry and then taking an air nozzle to them to see if it will blow the sand off (at a distance of course)

 

[Britalican]

sorry man, I have no idea how to get it out. may just have to replace it.

 

[Rith]

Its dried now and I ended up slowly picking the pieces out. Even without oil the little pieces like to stick to that yellow foam. Gonna be real careful not to do that again

 

[Sid]

Rith,
Have you tried PJ1 Foam Filter Treatment Spray and PJ1 Foam Filter Cleaner Spray? After cleaning out all that problem sand you were talking about a simple dousing with the "Treatment Spray" will protect the engine. The beauty of this product is that it is water soluble. To clean the filter next time just spray with the "Cleaner" and wait for about 15 minutes then just wash with water. Everything cleans up great. (Note: Washing those foam filters with gasoline will eventually destroy the material.) I keep a second clean filter around so I can just take off the dirty one, clean the metal insert, replace it and go riding. I clean the dirty one later. Just a thought.
Sid

 

[Rith]

Rith,
Have you tried PJ1 Foam Filter Treatment Spray and PJ1 Foam Filter Cleaner Spray? After cleaning out all that problem sand you were talking about a simple dousing with the "Treatment Spray" will protect the engine. The beauty of this product is that it is water soluble. To clean the filter next time just spray with the "Cleaner" and wait for about 15 minutes then just wash with water. Everything cleans up great. (Note: Washing those foam filters with gasoline will eventually destroy the material.) I keep a second clean filter around so I can just take off the dirty one, clean the metal insert, replace it and go riding. I clean the dirty one later. Just a thought.
Sid

Is the 'Treatment Spray' just foam filter oil? I am using the Uni filter oil and Uni filter cleaner. I think its similar but could be wrong. I didn't know gas was bad for the foam, someone else told me it was good for cleaning them. I'll stop using gas, the Uni cleaner seemed to clean it better anyways

My biggest issue was while cleaning it I hadn't taken pre-cautions while rubbing the cleaner into it to not let the sand on the outside get on the inside. Last ride was pretty windy and sandy and a lot of sand made it in the airbox, and collected at the bottom of the filter. I also got a little impatient trying to clean it out, the sand won't budge while wet but when dry it fell out easy enough


I honestly am not a big fan of Uni's 700xx filters design. On my dirt bike I have a uni filter too, and the yellow foam part is detachable. Ah well

 

[Seabass]

I use PJ1 Cleaner and oil on my UNI like Sid said. I have zero problems and do most of my riding in the sand. Product works excellent!!

 

[Sid]

Rith,
To answer your question, yes, the PJ1 Treatment Spray is only for foam air cleaners. I am not sure what to use on the paper. I would think you just replace that type.
If you are concerned about the air cleaner that you tried to clean and found sand inside, replace it. They are expensive but I think that the old saying “an ounce of prevention is worth a pound of cure” applies here. Start all over, just make sure the metal insert is thoroughly clean before installing it into the new air cleaner. I am sorry but I do not have any experience with the Uni Products.
Sid