???? Not understanding the question. How have you established it is running lean? At idle or at full throttle? If at idle (sneezing), simply give the needle a tweak toward rich. If at wide open throttle, that is controlled by the fixed jet in the bottom of the carb bowl. That must be absolutely, positively clean, without any trace of dirt, gum, varnish or whatever. But don’t go reaming or drilling it out. Oversize is just as bad as undersize/dirty.
