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  1. #1

    Please look at these Spark plugs, opinions HELP

    As some of you know I am having boost and RPM problems, http://www.greenhulk.net/forums/showthread.php?t=222006

    Pulled the plugs, please could this be it?
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  2. #2
    Called around only found LFR6A which I believe is one range colder used for the previous SHO, can I run it?

  3. #3
    RobZ71LM7's Avatar
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    Quote Originally Posted by jwaked View Post
    Called around only found LFR6A which I believe is one range colder used for the previous SHO, can I run it?
    No. NGK heat ranges are backwards. 6 is a hotter plug than 7.

  4. #4
    Can I run it?

  5. #5
    LFR6a are what should have been in there in the first place.

  6. #6
    Why is that? By my pics do u think were my problem?

  7. #7
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    no from factory the sv motor comes with LFR7A
    looks like you need a new set.

  8. #8
    i wasnt able to see your sig line in the app i was using, and didnt see exactly what years ski you had. With that much rust i figured it was at least a few years old. Possibly an older sho, my apologies

  9. #9
    When you get a new set, be sure to set the gap to the minimum tolerance they give. Also, get some nice grease and dab a little on the side of the coils that go into the block, and on the top seal that presses against the valve cover. As you insert the coil, twist it so it covers the whole sleeve with grease and ensure they wont ever get stuck and that they come out easily next spark plug change.

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