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Old Dec 20, 2010 | 09:48 PM
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Default Nightster Air Filter

Another member just recently posted on the Big Sucker Air Cleaner. I have a more basic question. My right knee hits the stock air cleaner on my Nightster. I have mid controls. I would like to change the air filter to something a bit smaller, or shaped differently (round perhaps?), without giving up performance. Any ideas? Even perhaps something with a different shape with better airflow/performance.

I was at a used bike shop on Sunday, and saw an older Sportster with a chrome, round air filter. I was particularly excited with the way it looked, but I was much more comfortable sitting on the bike without my right knee hitting the filter.

Any advice will be helpful. Thanks.
 
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Old Dec 20, 2010 | 09:56 PM
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I put a Ness 8" round cover on my Big Sucker 2 air cleaner, doesn't bother my knee.

http://www.denniskirk.com/jsp/produc...fCatId=&mmyId=
 

Last edited by Aaron48; Dec 20, 2010 at 10:00 PM.
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Old Dec 20, 2010 | 10:10 PM
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Joker Machine makes some small and great looking intakes:



http://www.jokermachine.com/itemstre...&Placeholder=0
 
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Old Dec 20, 2010 | 10:49 PM
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Thank you. Very helpful. Both the Ness cover and the Joker Machine look better than stock.

Can you simply replace the stock filter with the Big Sucker 2 without making any other changes to the bike? Does the Big Sucker 2 increase performance?
 
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Old Dec 21, 2010 | 05:43 AM
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Originally Posted by Aaron48
I put a Ness 8" round cover on my Big Sucker 2 air cleaner, doesn't bother my knee.

http://www.denniskirk.com/jsp/produc...fCatId=&mmyId=
Thats because you have forward controls and not mids.

Originally Posted by m3apx
Thank you. Very helpful. Both the Ness cover and the Joker Machine look better than stock.

Can you simply replace the stock filter with the Big Sucker 2 without making any other changes to the bike? Does the Big Sucker 2 increase performance?
A BS II won't give you more performance than the BS I unless you've done a stage 3 or more to your motor. Your carb is only going to suck so many CFM.
 
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Old Dec 21, 2010 | 03:41 PM
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Another question - the Jokermachine in the photo above doesn't have a cover. Is there a problem with water getting into the intake in the rain if the airfilter doesn't have an outside cover?
 
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Old Dec 21, 2010 | 03:45 PM
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Originally Posted by m3apx
Another question - the Jokermachine in the photo above doesn't have a cover. Is there a problem with water getting into the intake in the rain if the airfilter doesn't have an outside cover?
You just need to get a rain sock. I run my air intake open, and just through the rain sock on when it is raining really heavy
 
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Old Dec 21, 2010 | 07:40 PM
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Ok -this is a lot of good info.
What is a "rain sock"? I don't think I've ever seen one.
 
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Old Dec 21, 2010 | 07:49 PM
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http://www.jpcycles.com/search/searc...tk=All&x=0&y=0

Stretchy little water repelling thing that goes around the open air intake
 
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Old Dec 22, 2010 | 12:45 AM
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I read somewhere on the forums a guy with a JM filter says he lost some power. They're small though so if you don't mind a few hp...
 
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