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Thread: hotter plug

  1. 12-24-2004, 02:22 PM #1
    svo58
    svo58 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    hotter plug

    i am running a NGK dr8es,i was reading my spark plug and it looks to be running cold ,what would be a hotter plug to use.It's a 84 honda big red 200es,if i ride in 2nd gear it fouls the plug (dry carbon, not wet and oily) but if i go on a strightaway and get to 4th or 5th gear the plug is normal ,will a hotter plug help.........thanks,svo58
    84 big red 200es with speedo
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  2. 12-24-2004, 02:45 PM #2
    jeswinehart
    jeswinehart is offline P3 Member ( RIP 8/15/2018 ) The day begins with 3WW
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    plug

    the next hotter plug is the ngk # 7. the lower the number the hotter the plug.

    dry carbon fouling is normally due to eletrical ( weak spark ) ,,, from what i have read anyway ,,,,

    john
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  3. 12-24-2004, 03:00 PM #3
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    Howdy
    Howdy is offline Putting Priorities in Order, Busier than ever. Catch me if you can
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    John is correct. Pick up a NGK D7EA to go hotter.

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  4. 12-24-2004, 04:15 PM #4
    RideRed250R
    RideRed250R is offline Power User Roostin Away
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    go to br7es cheapest in the series and also has a good metallic tip for better spark
    adam
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  5. 12-24-2004, 04:25 PM #5
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    Quote Originally Posted by RideRed250R
    go to br7es cheapest in the series and also has a good metallic tip for better spark
    adam
    I don't have my book in front of me, but from memory the br7es is a different sized plug ( Used in 2 strokes ). The D7EA is a direct fit and they only run $2 from me or $2.50 or so from Napa ( last time I checked ). No I'm not trying to sell any ( other than locally ). Shipping cost makes them more costly.
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  6. 12-26-2004, 02:56 PM #6
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    Wickedfinger
    Wickedfinger is offline Power User Teaching quads a lesson
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    BR7ES is the "hotter" resistor type 2-Stroke plug. The thumper plugs should start with a D.
    J. Jonny D, --- Quad - Trike relations committee Chairman and all around swell guy.

    Rides: '91 Warrior, '87 TW200, 1984 YTM225DX, 1984 ATC125M, '71 CL350 Scrambler
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  7. 12-26-2004, 09:26 PM #7
    83185s
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    so he should get a dr7es?..o by the way..my dads kawasaki kz 400 isnt a 2 stroker and it uses a br7es
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    85' 200m - sold
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  8. 12-26-2004, 10:31 PM #8
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    Wickedfinger
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    so he should get a dr7es?..o by the way..my dads kawasaki kz 400 isnt a 2 stroker and it uses a br7es
    Ok, well you got me with that one .... you had to find an ancient bike from the '70's to do it, but you got me ..... BTW - the KZ400/440 manual lists B7ES, not the resistor type if you want to split hairs as the proper plug.
    J. Jonny D, --- Quad - Trike relations committee Chairman and all around swell guy.

    Rides: '91 Warrior, '87 TW200, 1984 YTM225DX, 1984 ATC125M, '71 CL350 Scrambler
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  9. 12-27-2004, 03:38 PM #9
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    Glenn J
    Glenn J is offline At The Back Of The Pack Arm chair racerFirst time rider
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    A slightly hotter plug would be the DR8ES-L. It's not as hot as a DR7ES, but a bit hotter than a regular DR8ES. The DR8ES-L is what the 83-85 200X runs. I believe the "L" is half a heat range higher than the 8.

    Best advice would be to go with what your manual recomends, then diagnose the problem from there.
    1985 200X
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  10. 12-27-2004, 04:54 PM #10
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    OldSchoolin86
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    This should answer all your NGK code questions:

    http://www.ngk.com/images/ngksparkplug.jpg
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