Although you probably dont want to hear this, I'd tear them apart and check the popoff on the carbs. Vital test, wouldn't have caught the leaking needle and seat on the set when doing my HX if it wasn't from doing it, and would have been chasing down that problem for probably a good bit of the start of the season.
Ive already ran that test on these carbs multiple times. they are brand new genuine needle and seats. Will changing out springs really change this?
When you had tested them before? Was it a firm pop? Or was there some air bubbles then the pop? And yes, I would do it to make sure you are within spec.
They were not leaking. There were no air bubbles. If I find they aren't in spec then what do I do from there?
