Spark Plug question.. (GSXR600)

[Deleted member 40275]

Recently did my spark plugs on my GSXR-600 and noticed that I had to unscrew the cap piece off the top of my CR9E Iridium plugs. This was the first time doing plugs for me and was wondering why I had to unscrew this piece off? Is this a common procedure on all bikes or are they restricted to the type of plugs I was using.

I have never seen anyone remove the top caps off the plugs when replacing car spark plugs.

Just want to learn a little bit about this if anyone has any ideas.

This is a pic for reference: http://raricks.org/plugs.jpg

Thank you

 

[RockerGuy]

They are different part # for ngk. Those without the cap is a different part. Just remove the cap & you're good

Edit :in the future if you want a genuine response post in the technical forum, unless you like answer from 20yr old amateurs

 

[Tripletrouble]

It depends on the type of plug cap. Some clip onto the thread and so you don't need the threaded piece. Others clip onto the threaded piece. Simple.