Andreas

Curious how a correctly specced plug would look after some usage.

Mine started to missfire the other day so ive been running it on low boost but today the missfire is bad even on that setting so will swap the plugs.

Mine look fine in color around the insulator and electrode but is pitch black on the sides. Does this indicate that its still a slightly too cold plug as I thought there shouldnt be any black on the plugs?

Or could it just be that its overfueling?

Will try and take a pic of them right away.