The stock needle is rather lean. It has a bad taper or should I say really no taper at all. The needle that comes stock in the YZ (NCVQ needle) has a much better taper and will allow a richer air/fuel mixture. The YZ needle is the same needle that comes in the GYTR jetting kit.
okay, I just got my yz needle that had been back ordered 4 weeks, but I don't know if it's gonna be worth taking the carb off again to put it on.
I have the stock needle set on 6th position, and it runs like a meth head cleaning his house. Should I change it, and if so I'm thinking 3rd postion?