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XJ550 Seca Air Filter Choices

Discussion in 'XJ Technical Chat' started by Michael R, Jan 8, 2018.

  1. Michael R

    Michael R Member

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    I’m using my stock air box and carbs rebuilt to stock specs. What is my best choice of aftermarket filters?

    K&N?
    Uni?
    Emgo (paper element)?
     
    Michael R, Jan 8, 2018
    #1
  2. lostboy

    lostboy Well-Known Member

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    The system was designed to use a paper filter element. I would stick with the tried and true.
     
    lostboy, Jan 8, 2018
    #2
    rocs82650, Xjrider92117 and Michael R like this.
  3. Xjrider92117

    Xjrider92117 Active Member

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    What he ^^^ said.
     
    Xjrider92117, Jan 8, 2018
    #3
  4. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Thorough testing has shown that both K&N, and UNI filters result in a lean condition. Rejetting only partially solves that issue, and brings others along with it.
     
    k-moe, Jan 8, 2018
    #4
  5. Jetfixer

    Jetfixer Well-Known Member

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    Stick with paper filter..P.O. had put a K&N filter in my 750 Seca bike ran okay , put in paper filter and whoooooo ran great . I have ran K&N filters in cars , but as far as bikes I will not.
     
    Jetfixer, Jan 9, 2018
    #5
  6. tabaka45

    tabaka45 Well-Known Member

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    P.O. installed a Uni foam filter in my XJ700N and it caused all sorts of problems. OEM paper filter solved the problems. Stock is always best in my opinion.
     
    tabaka45, Jan 13, 2018
    #6
  7. LarryMc

    LarryMc Active Member

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    4U8-14451-00 is the genuine Yamaha filter number. Compared to other paper style filters the quality is obviously better. $25.00+on eBay and worth the extra couple bucks. Beware of the cheapo knockoff brands, you get what you pay for.
     
    LarryMc, Jan 16, 2018
    #7
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  8. LarryMc

    LarryMc Active Member

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    I don't know what happened to my fonts up there. Sorry for yelling...
     
    LarryMc, Jan 16, 2018
    #8
  9. tabaka45

    tabaka45 Well-Known Member

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    Cleared the wax out of my ears. But you are right, my problems went away with the stock filter.
     
    tabaka45, Jan 17, 2018
    #9

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