Spark plug noises...

[darrsi]

So in this video it sounds OK and i cannot hear the clickiing noises.....this is after it has been running for 15 minutes or so..

Will get one from cold later tonight, but it seems to be just from cold....i think..

https://vimeo.com/130198180

Again you are describing cam chain noise, going away when the oil has warmed up, which is a good thing.
If it was arcing then it shouldn't make any difference if the bike's warm or not.
As the Dude says, check it in the dark anyway, 'cos there is always the small possibilty it could be both!