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K&N Air Filters/ How to clean?

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  #1  
Old 04-05-2017, 05:05 PM
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Default K&N Air Filters/ How to clean?

Took the carbs off the bike today to lube the throttle cables and found a K&N filter has been installed by the previous owner.

I've never had a bike with one of these and was wondering how you clean them?

Cheers Guys, any help/advice greatly appreciated.
 
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Old 04-05-2017, 07:30 PM
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Your nine hundo? If it's the panel, you'll want to spray it clean with a hose, and then put a special air filter oil on it.
 
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Old 04-05-2017, 07:43 PM
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Use a degreaser. K&n makes a really good one, but you can use whatever you want. Spray it and let it soak for at least 5 min. Then rinse it of with clean water and shake it as dry as you can. Then let it sit a dry completely. If you want to speed it up, use a hair dryer on low heat. Finish it off with a light coat of k&n spray oil. Don't over oil it!!!
 
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Old 04-06-2017, 01:50 PM
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I think it's better to over oil than under oil. The oil is what traps the dirt. Any excess will just make your airbox icky inside, but in my experience it isn't harmful to the engine or intake plenum.
 
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Old 04-06-2017, 03:11 PM
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Too much oil will block the airflow, at least until it's all sucked into the intake and makes a mess.
 
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Old 04-06-2017, 03:17 PM
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Thanks Guys,

After posting, I looked at youtube and found a couple of demo vids.

Do you guys think it would be OK to use compressed air to blow the water off?

It's alright for you guys with nice hot weather to let it dry in the sun, but here in 'Ye Olde Colde Damp Engeland' I could be waiting for a week
 
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Old 04-06-2017, 03:41 PM
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If you use compressed air, you run the risk of damaging the filter. A hair dryer is much better as it doesn't blow that hard and will help it dry, just use low heat or no heat so you don't burn anything.
 
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Old 04-06-2017, 05:39 PM
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Originally Posted by 74demon
If you use compressed air, you run the risk of damaging the filter. A hair dryer is much better as it doesn't blow that hard and will help it dry, just use low heat or no heat so you don't burn anything.
OK
 
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Old 04-07-2017, 07:20 AM
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Originally Posted by 74demon
Too much oil will block the airflow, at least until it's all sucked into the intake and makes a mess.


This, it will gum up the carbs. On cars, it's a big concern for MAF sensors as well.


As far as drying it, get most of the water on it, then let it bake on the hood of your car for a bit. It won't need too long
 
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