How to oil foam air filter?

[lugoismad]

My bike has aftermarket foam airfilters that just tighten down onto the carbs.

I just washed them out in the sink, they were absolutely filthy. The guy I bought the bike from said I can either use special honda brand oil for them, or just use some motor oil.

How do I apply the oil? How much do I use?

[Ichy]

I use a spray on oil made by K&N so applying it is easy.
Don't use too much oil or you'll end up creating a restriction to the airflow.

The idea is that it creates a sticky surface over the filter to catch bits of dust.

[lugoismad]

Gotcha. I have a K&N Filter in my car, so I know how that works. I actually think I have some of the oil for it around, so I may just use that.

[Tricolor Fan]

I thought you weren't supposed to use the K&N Oil on anything other than their own gauze filters - Could be wrong!

Motor oil is no good. I use silkolene, comes as a spray or in a bottle, pretty cheap.

I find the best way to oil the filter is to put a little oil in a zip-lock bag and spread it around so the inside of the bag is covered evenly. Filter goes in bag and gets pressed flat - nice even thin coat.

EDIT: Right just noticed that they're not flat foam filters.

[Ichy]

Any thin oil is ok. Just don't use loads.

[Odie]