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  1. #1
    bzyguy's Avatar
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    Alternative spark plug from OEM

    I've come across a post that someone has reccomended using a NGK CR9EIX for a direct replacement VS the OEM plug in a 07' 250X due to the high cost of the OEM plug at basically half the cost.
    Any input?


  2. #2
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    Cr9s work great it's all I use in my ultras.

  3. #3
    Take the time to smile sirbreaksalot's Avatar
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    Quote Originally Posted by bzyguy View Post
    I've come across a post that someone has reccomended using a NGK CR9EIX for a direct replacement VS the OEM plug in a 07' 250X due to the high cost of the OEM plug at basically half the cost.
    Any input?
    yes BUY them !!!!!!!!!!!!!!!!

    just please dont over think it

    they work plain and simple

    and if you are a real cheapscap u can also use CR9EK or CR9EB either will work if your current ones have failed.

    but EIX is your best choice due to the material the electrode is made from that can give better life.

    Waz

  4. #4
    rhorne1053's Avatar
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    Quick question on plugs, When they foul out is it possible to take em out, clean em and put them back in. Will they work?

  5. #5
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    No u can't

  6. #6
    nicjak's Avatar
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    they shouldnt foul in a 4stroke

  7. #7
    rhorne1053's Avatar
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    Quote Originally Posted by FIRE0021 View Post
    No u can't
    Thanks.

  8. #8
    rhorne1053's Avatar
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    Quote Originally Posted by nicjak View Post
    they shouldnt foul in a 4stroke
    Nic, these are the ones in my 07 250. I think you told me in another post that moisture was fouling mine out and suggested I install the exhaust filter. I'm going to wait until riding season is over before I go back to the filter. Thanks for the response.

  9. #9
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    The electrode inside breaks that's what causes them to go bad aka foul out

  10. #10

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    Quote Originally Posted by FIRE0021 View Post
    Cr9s work great it's all I use in my ultras.
    What is a replacement plug for the 300x plug(PMR9B )? I cannot find a CR9S and the originals are $20.00 each at my dealership.

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