cylinder head

Discussion in 'The Workshop' started by aprilia123, May 22, 2008.

  1. aprilia123

    aprilia123 New Member

    Messages:
    81
    i recently added a post about my cylinder threads on the head. the thing is the cylinder head threads are stripped a bit. my spark plug screws half in and wont come out but it wobbles. there is a good strong spark and good compression but the bike still wont start. does the spark plug have 2 be tightly in the cylinder head for it to start or is there a chance i can get it started? cheers
     
  2. SimonT

    SimonT New Member

    Messages:
    601
    dude... dont try and start it if the plug is loose... if it does start, the plug my pop out.... like a ceramic projectile.....

    it probbly wont start if its not getting a good ground either....ie from the body of the plug through the thread to the head.
     
  3. younger-rider

    younger-rider New Member

    Messages:
    97
    hhhmmm

    well basicly both threds are f**ked u have most probly put the spark plug in wonkie it most probz will need a new head and plug but if u just want to get it going now just do the plug up as much as u can so its well tight and u might av a chances :nerd:
     
  4. aprilia123

    aprilia123 New Member

    Messages:
    81
    the threads on the spark plug are intact and fine. im just dying to get back on the road just need some advice. cheers for help
     
  5. pow

    pow New Member

    Messages:
    140
    A spark plug should never be done up to tight
     
  6. Sw1fT

    Sw1fT Active Member

    Messages:
    2,940
    Rides:
    200SX S13
    a spark plug should never wobble :msn1:
     
  7. Aerox-lad

    Aerox-lad New Member

    Messages:
    904
    just buy a new cylinder head wont cost much probs around £20.
     
  8. capri dave

    capri dave Active Member

    Messages:
    5,076
    who the hells been servicing your bike....Edward scissor hands!!!

    if the spark plug isnt a nice snug fit the engine will never build enough compression,

    these things need to be corrected before you head out onto the road...
     

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