F800 Air Filter

Discussion in 'Parallel Universe' started by mtm100, Sep 18, 2009.

  1. mtm100

    mtm100 Adventurer

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    Has anyone replaced the OEM? I've been riding in a lot of very fine dust.
    My dirt bikes of the past all has a oiled foam air filters. Wouldn't that be better than the OEM? Any foam air filters for the F800?

    Thanks,
    #1
  2. Bucko

    Bucko In a parallel world

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    Somewhere, I think in the bowels of the original F800GS threadfest, someone found a Uni filter that fits the GS8. Pretty sure you'll find that the paper filters will keep the fines out of your motor just, uh, fine. Just ask Bob: http://www.bobistheoilguy.com/airfilter/airtest3.htm. :deal

    Oiled foam filters are cheaper in the long run because you can clean and re-use them, but the OEM paper filter isn't so big you can't carry a spare on an extended trip. I just did hundreds of dusty miles and my bike is running fine. I'll check the air filter today when I change the oil.
    #2
  3. mtm100

    mtm100 Adventurer

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    I'll check that thread. Thanks
    I'll be interested to hear what you see.

    Thanks,
    #3
  4. EnderTheX

    EnderTheX Dirt Rider

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    I read it entirely and to sum it up for our viewers who are short on time his basic conclusions include: (this is for a Miata not a F800GS)

    - Paper OEM filers do not restrict flow too much and are easier to replace than servicing foam/oil based filters (like K&N)

    - K&N filter does not pass as much dirt by as people think and is comparable to average paper filters.

    - K&N also does not pass oil (which may damage sensors), it passes dirt.


    Test method: Installing a secondary paper filter to collect particles behind the test sample filters and running 500 miles.

    I've got a K&N on my SV650SF and when I am servicing my F800GS I may stick one in too. I like K&N and I don't mind servicing them. I also don't believe they reduce engine life. Also... BMW should not be able to refuse warranty claims because you install a different filter, as far as I know it is on the manufacturer to PROVE the customer modifications/actions caused the failure if they want to refuse warranty (per the US government). :deal
    #4
  5. Bobo1167

    Bobo1167 On a different frequency

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    Enderthex you've started another K&N thread, don't ya know that's like taunting starving wolves with raw meat?

    I too will soon start destroying my engine with that air filter, whenever I can get one. As of just now, their site doesn't list any air filter, only oil.

    Maybe you've found different? Like the 12gs filter is the same?

    Start the carnage, I predict 20 pages before the sun comes up again.

    bobo
    #5
  6. Bigem

    Bigem Long timer

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    I recently installed a UniFilter kit into my F8. As I was pushed for time I did not get around to installing the pre-filters(will do over the next week), so to get around that I cut and installed a cut to size domestic "Chux" wipebetween the main airfilter snorkal and unifilter.

    After 3000klm, including about 1200klm of dirt, the unifilter had evidence of dust but none had ingressed into the airbox. I had the same set-up on my F659 Dakar and it worked just fine and engine protection was not a concern.

    The Unifilter kit number is : NU-7305KIT and comes with everything you need and instructions. Less than $80AUD.
    #6
  7. Y E T I

    Y E T I Unpossible

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    I wonder if we can get that here in the US? I've always run Uni filters on my dirt bikes...
    #7
  8. RAD800

    RAD800 Been here awhile

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    Im using a washable BMC filter for an ST, it woks ok but its a bit of a pain to clean and could probably do with some sort of pre filter. but for the 40 bucks its cheaper than replacing paper ones.

    [​IMG]
    #8
  9. cbOwl

    cbOwl just ridin somewhere

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    K&N part # BM-8006 fits. Cost $40. Just installed it.
    #9
  10. Ducksbane

    Ducksbane Quaaack!!!

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    I've had a unifilter for a while and did do the modification so you can run the prefilters.

    After riding another standard 800 I really do think you get more power and better throttle response, especially around 3,000 to 4,000 rpm.

    Should be cheaper to maintain, and is far more waterproof than standard.

    What's not to like?:clap

    If Unifilter in America doesn't have them, you can always mail order over the internet.
    #10
  11. The Griz

    The Griz Long timer

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    +1 on K&N BM-8006! Had it in for quite a while now. No issues, only more power!
    #11
  12. DolphinJohn

    DolphinJohn Caveman

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    Wunderlich has a Blue filter made by Green filters, or something like that.:lol3

    I have it and like it.
    #12
  13. 1P8RIOT

    1P8RIOT Been here awhile

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    Whitesboro, TX.
    F800 DEPOT Has K&N on page 19 of their online parts cat. $42:evil
    #13
  14. DolphinJohn

    DolphinJohn Caveman

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    I paid twice that for the Wunderlich, so it must be twice as good. :D
    #14
  15. EnderTheX

    EnderTheX Dirt Rider

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    Thanks!! I will be putting that on as soon as my stock filter looks crappy. I don't believe K&N gives a noticeable amount of power but I like the clean ability and longevity of their filters :clap.
    #15
  16. MTrider16

    MTrider16 Ridin' in MT

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    So have I failed my poor stead by replacing the stock paper filter with another stock paper filter in at 6200 miles? The original blocked a fair amount of light, so I was glad I had checked it at the oil change, instead of going to the 12400 mile interval.

    David
    #16