spark plug ticking

Discussion in 'Motorized Bicycle General Discussion' started by ex-28, Jul 20, 2010.

  1. ex-28

    ex-28 New Member

    Joined:
    May 23, 2010
    Messages:
    110
    Likes Received:
    0
    hi all my newphews bike was ticking 80cc kit from zoom , so i poped off the end of the plug and sure enough the metal inside the plastic head that goes on the sparkplug in there theres a little brass fitting that came out , i tried to screw it in again with a flat screw driver but it was stripped , so i unscrewed it and bought a new one (ngk) cut the wire 1" shorter so it had a clean end on it and screwed on the ew plastic head.

    it fits on verry tight to the plug , but at low speed he gets a bad ticking sound , i took the head off the wire again and the screw end of the head is scrweed in to the middle properlly as you can see it's right into the wire , anything else i can check to see whats making the ticking sound , i'm going to gap his plug later today and look at it today but not sure what else it could be.

    also the other end of the wire that goes to the cdi how does the wire come off of that end ? some say it unscrews just like the other end that goes to the plug but i tried and it didint seem to want to budge.

    this is the kit from zoom bicycles 80cc slant head
     

    Attached Files:

    • cdi.jpg
      cdi.jpg
      File size:
      6.8 KB
      Views:
      24
  2. grinNbarritt

    grinNbarritt New Member

    Joined:
    Jun 4, 2010
    Messages:
    54
    Likes Received:
    0
    Could the piston be hitting the plug tip?
     
  3. ex-28

    ex-28 New Member

    Joined:
    May 23, 2010
    Messages:
    110
    Likes Received:
    0
    nope not that at all i checked head its all clean ! :)
     
  4. Kevlarr

    Kevlarr New Member

    Joined:
    Jul 22, 2009
    Messages:
    1,628
    Likes Received:
    0
    The plug wire just unscrews from the CDI. Sometimes there's a bit of glue on them but with a little careful effort they all come out.
     
  5. ex-28

    ex-28 New Member

    Joined:
    May 23, 2010
    Messages:
    110
    Likes Received:
    0
    ok dokie thank you
     
  6. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

    Joined:
    Jan 8, 2008
    Messages:
    11,529
    Likes Received:
    3
    shoot it with some wd-40 or similar, it will come right out.
     
  7. ex-28

    ex-28 New Member

    Joined:
    May 23, 2010
    Messages:
    110
    Likes Received:
    0
    his head bolts were loose all fixed now ,, heh
     

Share This Page