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Thread: 250r spark plugs

  1. 03-16-2006, 09:01 PM #1
    Air-cooled-R's Avatar
    Air-cooled-R
    Air-cooled-R is offline At The Back Of The Pack Arm chair racerFirst time rider
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    250r spark plugs

    How good are the NGK iridium plugs? I'm thinkin about trying a few. I'm currently running a B8ES and I'm wanting to go to a hotter burning plug. What burns hotter, a B7ES or a B9ES?
    My bikes:
    -1982 honda 250r
    -1999 HONDA 300 Fourtrax 4x4 "The Tank"
    -2001 harley 1200 sporty
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  2. 03-16-2006, 09:04 PM #2
    MTS's Avatar
    MTS
    MTS is offline Power User The day begins with 3WW
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    Quote Originally Posted by Air-cooled-R
    How good are the NGK iridium plugs? I'm thinkin about trying a few. I'm currently running a B8ES and I'm wanting to go to a hotter burning plug. What burns hotter, a B7ES or a B9ES?
    BR7 is hotter, 9 colder....I have run the iradium plugs before....Kinda torn between them....they dont foule as easily as a normal plug i have found but thats about it...lol not worth the extra money i dont think..
    1985 Tri-Z-

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  3. 03-17-2006, 11:02 PM #3
    Ordo's Avatar
    Ordo
    Ordo is offline First Time Rider Arm chair racerNew to the board
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    I've been running a Denso W26ESR-*Edited* with excellent results. You can get them at AutoZone for about $1.80. And you can see down the insulator much better when you are doing plug chops as compared to the NGK's.
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