Reply To: GT650 EFI leaning out
Do you have any way to check; fuel-pressure? (regulator & fuel-filter) , Temp-sensor? , O2/lambda-sensor(s) ?
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... 🙂