You should adjust the pilot screw the right way not any predetermined amount of turns. A larger main doesn't do the same as shimming the needle. a larger main will allow more fuel through it. Shimming the needle increases the amount of fuel at a given slide lift point as a thinner part of the needle is in play at that point.
In many cases a lean bike will run great, fantastic even right up until you burn a valve.
I learned all I need to know about life by killing smart people and eating their brains. Eat right ,Exercise ,Stay fit, Die Anyway!
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