Originally Posted by DFlanagan
Alright Goat I'll look into the needle and atomizer. As of now i don't have much faith in that 21mm carb. I had nasty hesitation on acceleration and it ran super rich. That was after I swapped all parts from the 19mm to the 21mm (with the needle position all the way down, leanest position). Then I swapped all the parts back to the 19mm carb with the needle position all the way down and it ran great.
I don't understand how opening your carb intake diameter by 2mm would cause this problem? I'm calling Motomx.com today to see what's up.
Just got off the phone with Motomx.com. I'm sending it back to them. Could have an internal problem. We will see....