So have a plug chop does this still look too rich? Mostly black with just a faint brown tint as it goes up .

 

If this is on a brand new plug with regular gasoline that you did the chop on your way way way way way way.........lets put a few more in there way way rich. There.

 

This plug was ridden aprox. 1 hour of run time,(regular premium fuel) then wot and kill switch coast and chopped. currently a 270 main , Previously had a 280 in and it felt kind of flat on top end. I put in the 270 as they go down in 10 increments. The picture is from the 270 im just wondering if i should drop another size, and retest.

Side note bike runs rather good no bogging or missing. Just a little flat past 1/2 throttle. If i wack the gas from idle Or with a load on biek it revs freely and doesn't hickup a bit. Im pretty sure the idle and air adjustments are just about spot on just trying to dial in this main.

 

I would drop the main and raise the needle in knotch and see what it feels like.