125-200cc Am I lean?

I was riding today and the guy next to me said my bike sounded a little lean. I pulled the plug and half of the electrode was dark and the other side was very light brown? Can anyone tell me why it would be like that?
I have go pro footage ... does the bike sound lean?
fyi it's a 2014 cr125 with a keihin 38mm carb. 175 / 42 / 5.5 slide / jd blue needle in 3rd clip. 70* f and 800' asl. Stock gearing.

View: https://vimeo.com/83721236

I would agree. There was a few times in the vid where the bike would take a bit to calm down. In my experience I'd say these bikes like to be a tad on the rich side of things.

As far as plug reading goes mines the same way I tend to judge by feel more than plug reading as long as it looks decent.

1:55-2:10 sounds quite lean.

Do you think I need to go up on the mj, lower the needle clip or try another needle? I switched carbs from the oem mikuni to the keihin. The needle is from a kit I had on a 2006 ktm 250sx. JD blue needle which is the cold weather option.
Does anyone have a needle recommendation for the keihin?

unless your doing throttle chops and shutting the motor down at different throttle positions you might not be getting an accurate plug reading. you could be rich on bottom and lean on top but if the bike idles a bit before you shut it down you might not see how lean it really was on top..if that makes sense? hears a good chart...

awesome guide, stickie it perhaps?

That's a great chart. Thanks.

Just a reference real life pic of what my wr300 plug looks like with the lectron carb...look at the "best" plug then look at the pics below.

Show off's!

I've got a lectron and get a decent reading but its on the heavy side. It was tuned perfect for the 125 maybe the 165 needs to be leaned out a little. Bike runs good and doesn't foul plugs so I don't even know if I care.