ngk spark plug for slant head

Discussion in 'Motorized Bicycle General Discussion' started by gra1972, Aug 21, 2011.

  1. gra1972

    gra1972 New Member

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    hi guys just wondering if anyone can help, is there a ngk spark plug available for the slant head ?
     
  2. Greg58

    Greg58 Well-Known Member

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    b6hs is a good plug for both 48 and 66cc engines.
     
  3. gra1972

    gra1972 New Member

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    will it hit the piston as the plug that was taken out is short where it screws into the head ?
     
  4. Greg58

    Greg58 Well-Known Member

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    Not on mine, I run a grubee 48cc slant head and use the b6hs in it. If it is the same china girl engine kit you should not have any problems. Get the piston at top dead center and screw the plug in, then screw it out and see if the gap closed up if not it did not hit.
     
    #4 Greg58, Aug 22, 2011
    Last edited: Aug 22, 2011
  5. MarkSumpter

    MarkSumpter New Member

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    I run the same plug in a 66 that works fine.
     
  6. Al.Fisherman

    Al.Fisherman New Member

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    All 5 of my HT builds use that same plug...no problems.
     
  7. wan37

    wan37 New Member

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    I have a 48cc slat head too,but can't find a place with that nkg b6hs to buy from.Please tell me where to find it or a nother brand....Thanks
     
  8. MarkSumpter

    MarkSumpter New Member

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    Pep Boys, Auto Zone, O'reilleys, NAPA Auto Parts etc. They can also cross reference it to AC Delco, Champion and other plug mfrs for you.
     
  9. Greg58

    Greg58 Well-Known Member

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    O'rielley's here stocks the b6hs.
     
  10. DaveC

    DaveC Member

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    And if you really can't find the plug Sick Bike Parts lists them.
     
  11. Al.Fisherman

    Al.Fisherman New Member

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    #11 Al.Fisherman, Aug 22, 2011
    Last edited: Aug 22, 2011
  12. phinseth

    phinseth New Member

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    anyone know if a ngk bp5hs or a champion L90c plug will fit a boy go fast 66/80cc slant head motor. my stock plug crapped out on me so i need a new one. and my auto parts store only carries these 2. or should i go with the ngk b5hs plug off of sick bike parts?
     
  13. Greg58

    Greg58 Well-Known Member

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    The "p" is for the extended tip, it works in my slant head 48cc. With ngk the lower the number the higher the heat range, run it and do a plug check or chop as it is sometimes called and look for signs of heat related problems.
     
  14. wan37

    wan37 New Member

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    Phinseth I running the ngk b6hs its great plug it's not as hot as the b5hs I would start with the 6 series first if not hot enough change there cheap enough to change.I can get them at most auto parts stores.
     
  15. Jumpa

    Jumpa New Member

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    I use the BP7HS and have no issues I also use 2 aluminum head gadgets though however it never hit the piston when I had just a one.

    I just put the second one on because, I read told me you can get more compression or some thing
     
  16. Greg58

    Greg58 Well-Known Member

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    I think you have the gasket idea backwards, adding a second gasket lowers the compression.
     
  17. Jumpa

    Jumpa New Member

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    Yes Greg your 100% correct in fact before i put in the second gasket I was getting blow by out of the single gasket when I swapped to angle head because of to much compression.
    However when I put in the second gasket "Even though one would think this will not fix your blowout issue " it did & the only reason it did was because " like you stated Greg "it lowered the compression" & stopped all that black oil from getting all over my bike and my legs
     

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