Do you need to gap an iridium plug?

Discussion in 'Electrical' started by richirich1113, Oct 20, 2011.

  1. richirich1113

    richirich1113 Member

    I am wondering if you need to gap an iridium plug and if so what would be a good starting point?
    Or should the gap be left as it came?

  2. bideronit13

    bideronit13 Member

    No you don't have to and its best not to.
  3. richirich1113

    richirich1113 Member

    Thanks, i didnt think so , but its better to check..
  4. bideronit13

    bideronit13 Member

    Your welcome.
  5. Pablo

    Pablo Motored Bikes Sponsor

    NGK say NOT to. So we recommend not to. That's the official line.

    However I have down to 0.024" or so. Be careful and it's doable. Ruin the plug and per the official line, you are on your own.
  6. richirich1113

    richirich1113 Member

    yea, i ordered the plug from sbp ,pablo. i had a sland head and the plug worked great but then i had replaced it with a MM head. The gap did not really matter after that. it ran good for a seconed then i pulled the plug and the piston had touched it just enough to just about close the gap on it. Luckly there was no damage.
    So anyone reading this know it is a good plug but it probably wont work if you have the MM head.