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Thread: Best Plugs ?????

  1. #1
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    Best Plugs ?????

    What are the best Plugs for my 2008 XB12SCG ?
    My local Harley/Beull dealer recommends Harley original figment but I've read on here NGK ?
    Any help gratefully accepted.
    Thanks.

  2. #2
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    NGK DCPR9EIX gapped to spec. just be DAMN careful both checking and changing gap if required.

  3. #3
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    Thank you, will do. Gap as per manual ?.

  4. #4
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    air gap is 0.035 in. which is 0.89 mm
    the iridium plugs have an incredibly thin and delicate center electrode. look closely and you'll also see a tiny dab of iridium on the portion of the ground electrode that faces the center electrode. this has been discussed ad nauseam on here but what i do is get a pack of matches, fold the cover over twice and that is very close to .035. OR simply find a soft material measuring approx. .035 and use that for measuring device. what you do NOT want to do is jam a hard metal feeler gauge into this airgap when checking and adjusting same. be delicate and tender when adjusting the airgap or you run the risk of not only dislodging the precious metal from the ground electrode but of also breaking off the center electrode iridium wire.

  5. #5
    Senior Member midway's Avatar
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    Quote Originally Posted by Branson View Post
    What are the best Plugs for my 2008 XB12SCG ?
    My local Harley/Beull dealer recommends Harley original figment but I've read on here NGK ?
    Any help gratefully accepted.
    Thanks.
    Those iridiums are nice, used them without any issue but I switched to the 360's recently. Performance is just as solid if not better but I can't say how long these will last. I'm not likely to keep any plug for more than a couple years anyway.

    https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
    Last edited by midway; 09-03-2017 at 09:43 PM.

  6. #6
    Senior Member Silverrider's Avatar
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    https://www.youtube.com/watch?v=SnsUAqC3ON0

    plugs are like oils, there are too many out there, go with what works for you .

    I have had good luck with the NGK DCPR9EIX
    Last edited by Silverrider; 09-04-2017 at 12:21 AM.

  7. #7
    Senior Member GregoXB's Avatar
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    The Harley OEM plugs are very good if you decide to go with them.

  8. #8
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    ^^^^^ ^^^well.............here we go.

  9. #9
    Senior Member midway's Avatar
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    Before there is any blow back on the use of the Brisk plug tbh I was trying them for the Jardine tune purely for the pops and cracks on decel and the results are minimal... but not dis-satisfactory in anyway. The 18 dollar plugs are curious but certainly not necessary.
    (steps quickly toward the exit)

  10. #10
    Senior Member Cooter's Avatar
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    The only problem with plug, oil, tire, threads is the opinion, conjecture, and bias.

    No need to hide your opinion! Have at it Don't present your opinion as fact.

    Frankly $18 plugs turn me off, but buying 2 is better than buying them for a V-8! Ya never know. Theres just so many miracle cures one has to work right?? Keep your mind open and your wallet tight!



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