The reason you oil it is to stop any dust from getting into your carb. That's a 2 stage filter. I think the one that goes over the top is dry. I think that's right!

 

so do i oil the inside only?

if so what is the best oil to use for it?

i read that you should not let it sit so do i need to remove the air filter when i don't ride my atv?

Question: what would happen if i did not oil it?

and how often do i need to reoil it?

 

so do i oil the inside only?

In a zip lock bag

if so what is the best oil to use for it?

Don't know the answer, but any foam filter oil should work. Twin Air sells their own.

i read that you should not let it sit so do i need to remove the air filter when i don't ride my atv?

Never heard of that.

Question: what would happen if i did not oil it?

Potential to suck dust into your quad's carb and cause it to stop running correctly?

and how often do i need to reoil it?

In dusty conditions, after every ride. Obviously this doesn't mean everytime you pull it out into your yard to play around, but after long trail rides at the end of the day.

 

Sorry, I'm new to ATV's as well, and had to research this for my quads. I don't know anything about the pre-filters but Twin air sells their own foam filter oil. Try to find any foam filter oil to use. Ideally, you would have 1 on the quad, and 1 spare, because after washing your filter, you MUST let it dry overnight, or the oil won't distribute evenly. Then, you must oil it and let it dry overnight before installing it. I would wash and oil my filter after riding in dusty conditions, or after a long ride on the trails. (after every ride). Some will tell you this is overkill, but that's what I'd do. You can keep spare filters in ziplock bags in your toolbox.

How to oil:

Put on some gloves. This gets messy! Put your filter in a gallon-size Ziploc bag and pour in a generous amount of oil. (Motor Oil does not work). Seal up the bag and start massaging the oil into the filter. Gently work the filter until you have an even shade; dark spots mean you've got too much oil on that area, light spots mean not enough. When you have an even coat, remove the filter from the bag, wipe off any excess and let it sit overnight before reinstalling. Leftover oil can be poured back into the bottle to reuse.

PS, putting the oiled filter back on that little metal thing SUCKS the big one. I felt like an absolute idiot trying to get my filter back on the 450ER.

 

thank you this helps a lot

 

No problem. Glad I could help. By the way, you should be able to find foam filter oil at any motorcycle/powersports shop.

 

i heard u can use bar and chain oil , or sae 90 gear oil, something real tacky , guy says that s all he ever uses... honda manual says use only half ounce of oil though....

 

I only use Twin air filters in all my machines, IMO they are the best. Flow air better than stocker, and stop dirt and dust better also. It is a "dualstage" filter, but it doesn't come apart like an outerwear for a K&N. Its all one piece, and like was said any bike shop air filter oil will work for it. I've heard of people using heavy motor oil, and other things in a pinch, but I would just use the real stuff. I just use Bel-Ray filter oil, and it works fine. Wash your filter in mineral spirits, or something similar, but not gasoline, (can damage a filter, and cause a huge fireball in the airfilter under a backfire through the carb). Do not wring out the filter to get excess cleaner off, squeeze out excess into your container, and I then wrap in paper towels, or clean shop rag, and soak up some more, then thorougly rinse in water and towel dry it again.
The sun will dry it in no time, a hair dryer works good to, just don't get to close and melt the filter. Oil just enough to work it in evenly throughout the whole filter inside and out, using the bag method, or just throwaway plastic gloves(that stuff is hard to wash off your hands) Gently squeeze out excess oil by wrapping with a clean shop rag or towel again, as you don't want excess oil being sucked into your engine. If you get rid of the excess you can ride immediately, as it never actually dries. If it did, it wouldn't flow any air, or catch any dust.LOL Check it often, and you'll see if getting dusty looking, as soon as you do its time to clean it again. Save your stocker for a spare, and have it ready. If no other mods are done the extra airflow from just the filter won't justify any needed jetting mods, and your good to go.

 

Forgot to add, some people do this some don't, but get a can of grease, and on the outer lip where it seals to your airbox use your finger, and put a light layer around the edge before installation to help with a good seal to help keep dirt out, and wipe down the airbox good, and clear out the little clear drain you see on the bottom of the airbox, and stick a rag into the carb inlet hole while you have it all removed to keep it clean.

 

you actually oil the out side not the inside