[dirty4man]

with the black smoke it sounds like your running rich, mine is running rich also since the new top end, it puffs alittle black when cold, but once it warms up she does fine. sooner or later I will get/make time to fine tune her.

 

[dirty4man]

Your plug shows it being rich. Did I recall you changing out your pilot jet or is it still the stock pilot jet? how does it do on mid and full throttle.

 

[dirty4man]

try dropping your needle a notch or two and see what it does once its warmed up. dropping the needle will lessen the fuel flow alittle and should get rid of the black smoke as long as you main jet is not to big.

 

[dirty4man]

that doesnt look to bad, if it was lean the outer rim would be white along with the center. The center is suppose to be a tan color. how long are your runing the bike, are your riding it or running it in the shop? Is it still backfiring and smoking once it has been warmed up?