We go the top-end dialed in with 100 mains first. Up & down on either side wasn't as good. So that's done and locked in.
Problem with longer FP needles was it wasn't getting fully on the mains soon enough, caused stumbling in 9-11k range. Using shorter stock needles got on full mains sooner and took care of that little stumble.
Now the bottom-end's too rich, gotta work on pilot-screws or even change back to 38s.
I still suspect there may be other issues too. Suggested he swap complete bone-stock carbs over from green bike that's working flawlessly perfect.
Might even send my wideband with on-board datalogging memory to really sniff out problem. Gotta build up harness for quick install on bike instead of auto.
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