Reply To: Jetting a GT125R – 2017 ..?
Well, carbs & jetting…changes all over the world…based on temperature and air-pressure/height above sea…
I’m located “sea-side”. (South-west-coast).
With 15 and 20 jets, and 2,5 turns out, it would run, but the “needle”-screw did not give much response, could turn a full revolution in before it stumbeled, and died. Could also turn a couple of turns out (from “ideal”) without change in rpm. With 30 jets, it started to respond on the screws, still best at 2,5 turns out, with 40 jets, response was good, -best at 1,5 turns out. Idling with AFR=14,5/Lambda 0,99
Many good hints on jetting here:
https://pilotodyssey.com/BillGivensjetting.htm
(40-pilot-jets actually came in the 6sigma-jet package)
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... 🙂