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  1. #1
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    Default What NGK plug is hotter, BU8H or BUHW?

    Anyone know this?

  2. #2
    Supreme Mariner rickdb1boat's Avatar
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    Take a look here. PDF file: web page
    Rick

    "Boating is Life...All the rest is just Details"

    2007 Bentley 200 Cruise
    2007 Merc. 90 4 stroke

  3. #3
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    Was just looking at that..can't decipher the BUHW temp. Is it colder or warmer than the BU8H.

  4. #4
    Admiral Dunaruna's Avatar
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    Surface gap plugs don't have a 'heat range' rating.They are at the extreme end of cold.
    Watch this space......................

  5. #5
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    Thanks for the info. Does anyone know why merc recommends running the coldest of the cold. The compression isn't overly high. However, I know that mercs (or at least mid 80's to early 90's Black Max V6's) run hot so maybe there's the anwser.

  6. #6
    Admiral Dunaruna's Avatar
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    To help combat the dreaded fouled plug.The fuel ration control, quality of oil and combustion is much better on newer 2 strokes - fouling isn't so much a problem so surface gap plugs are becoming less and less important.
    Watch this space......................

  7. #7
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    For anyone is following the post.I contacted NGK and the said the BUHW is a colder spark plug and the BU8H has an actual heat rating which is hotter.

  8. #8
    Lieutenant timmathis's Avatar
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    NGK has a cool web site with all the info you want to know about plugs. I lost the address. I will see if I can find it and post it for you if I can. Tim

  9. #9
    Seaman lrice01's Avatar
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    1997 Tracker Pro Deep V 17 - Mercury 75HP 3 cyl. 2 stroke

  10. #10
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    Which plugs are best..

  11. #11
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    So which is better NGK BUHW or Champion L76V plugs.

  12. #12
    Commander ricksrster's Avatar
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    I think the BUHW NGK are the equivilent replacement for Champion L76V.
    "Many of the greatest sailors were pukers."--Thorfinn Skullsplitter

  13. #13
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    Default Re: What NGK plug is hotter, BU8H or BUHW?

    Ok, Thanks

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