Look for yourself... Here is a search that can lead you to the sources to see and read.


But it looks pretty normal when compared to this:

 

That plug looks a little lean to me, but your running no-lead, YOMD!

 

That looks lean to me also. Also dont use ethanol blended gas when trying to read plugs. With blended gas you would be looking for a clean new looking plug, much harder to read.

 

No blistering or melting of the electrodes. Doesn't look extremely lean, looks close to the plug shown for unleaded. Plus the head pipe will run hot - running around 1300 degree hot exhaust gasses inside. Factory Kawasaki Ryan Vilopoto's exhaust glowing red on the start line. Exhaust is hot.



If the bike runs better than before, it can't be too far off. Maybe peruse some Euro sites about EFI KLX250s and see what is going on there.