How does this look?

What are you using for fuel? Are you putting any additives to your fuel? What spark plug and heat range?

I doubt it’s lean but it’s hard to say without getting a better look at it.

Do yourself a HUGE favor (who deserves a favor more than you???) and get on Amazon and buy yourself a Dr. Mom otoscope. It should be less than 20 bucks.

With that tool you can see fine details and the fuel ring at the bottom of the porcelain.