School me Sparky!! - Spark Plug Variety

Discussion in 'Trials' started by Greebe, Nov 1, 2018.

  1. jonnyc21

    jonnyc21 Trials Ninja

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    I have to say that I don't know what the actual cause is but I put a non-resister plug in my 07 4RT by mistake once and it ran like crap tell I switched it back so there is at least something going on when you don't have one on the Montesa's.
    #21
  2. lineaway

    lineaway Long timer

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    Honda has always needed a resistor plug.
    #22
  3. Thesolidman1

    Thesolidman1 Been here awhile

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    This kind of thing only happens in trials, it seems. How hard can it be to find out what the proper plug is, and yet there is conflicting info.

    "First you can never believe anything written in a manual, especially if has been translated. Second these people are lazy, one year looks as good as another."
    I think information should be better from the mfg's and distributors. Along the same lines, I was just looking to research some info for a new bike, and the US distributor website is still featuring 2016 model info. This stuff doesn't fly in other industries.
    #23
  4. motobene

    motobene Motoing for 49 years Supporter

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    OK, I get it now. The ECmodule's more complex electronics can have circuits excited by more robust RF energy pulse of a non-resistor plug. Little RF shielding on the module, apparently.

    I don't think there are 'proper' plugs other than size and heat range. The resistor thing with ECMs is a new one for me. I never would have thought of this. Good to know.
    #24
  5. Norman Foley

    Norman Foley Devotee of the Husqvarna Supporter

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    On the last generation Italian Husky 125 2T's.... Digital ignition that ran an NGK "B" plug and if you put a resistor plug in it, the bike would run like crap.
    #25
  6. motobene

    motobene Motoing for 49 years Supporter

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    Always learning!

    Just heard a talk last night on how not all mitochondrial DNA may be inheireted from Mom. That could really turn human history on it's head! It was 'settled' science ya know!
    #26
  7. Thesolidman1

    Thesolidman1 Been here awhile

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    #27
  8. Junglejeff1

    Junglejeff1 Long timer

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    I used to build choppers at a shop in Wisconsin and we ran into that a lot.People wanted us to use copper high tension wire and non resister plugs and caps and it would scramble the electronic ignition. Some how they figured it would give them more power but it messed them up bad.The Yamaha xs650(electronic 1980 up)and cb750,s would hardly even start with the old school stuff.
    #28
  9. Junglejeff1

    Junglejeff1 Long timer

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    For best performance a plug should be flush at the threads in the combustion chamber. If threads are exposed in chamber the edges of them can create hot spots.They also collect carbon that can jam up threads on removal. A to short plug may cause power loss because the mixture has a harder time reaching it.
    #29
  10. Junglejeff1

    Junglejeff1 Long timer

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    Can anyone find me this unattainable plug lol.I would pay 20 bucks for one if it was available. 20191214_202432.jpg
    #30
  11. lineaway

    lineaway Long timer

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    NGK-R BPMR6A
    #31
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  12. Junglejeff1

    Junglejeff1 Long timer

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    I love this place lol.I should have asked you in the 1st place.
    #32
  13. lineaway

    lineaway Long timer

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    Ok where is my 14 bucks. You can get one for 6 bucks. In fact I have one in my fanny pack.
    #33
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  14. Junglejeff1

    Junglejeff1 Long timer

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    Damn,if you can hook me up with a ring set for a key roo I would would pay for a bottle of your choice.
    #34
  15. lineaway

    lineaway Long timer

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    212 or 249.
    #35
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  16. Junglejeff1

    Junglejeff1 Long timer

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    #36
  17. lineaway

    lineaway Long timer

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    #37
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  18. lineaway

    lineaway Long timer

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  19. lineaway

    lineaway Long timer

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    Not sure why the links do not work, but they have the item number.
    #39
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  20. motobene

    motobene Motoing for 49 years Supporter

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    What I do with all rusty fasteners (like your head bolts) is clean them off with my wire wheel on the bench grinder, then paint them with silver Rustoleum High-Performance enamel. Very fast drying paint, like lacquer. I keep a can of gloss black, silver, and white at all times. And a can of clear spray lacquer to seal parts when I don't want pigments.
    #40
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