0.8mm

 

If this is the original plug for your bike, check the plug box that the plug comes in. It may say NOT, I repeat, NOT to regap! I noticed that the gap was slightly out of my OEM plugs and tried to regap them only to notice the warning on the box afterwards.

 

It is the cr9eix, not the original.

I have now gapped them at 0.75 mm

 

Before reading about the CR9EIX I replaced with OEM plugs...It was a bitch to say the least. Is it worth it to switch out to the CRs?? (please say no)...My original, 9 year old OEMs were in decent shape BTW...

 

i would not change them unless they were very old or (as in my case), i was going to adjust the valves anyway.

I believe the difference between the plugs is small, but the cr9eix are a lot cheaper and maybe a little bit better. So if a change is near use the cr9eix. But the oem plugs are said to last 100.000 miles in automobiles