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notrocketscience · August 17th, 2022, 11:11 AM

Whoever had my ninja before me performed a bang-up job on rebuilding the carbs complete with unlabeled pilot and main jets.

Does anyone know the sizing of the stock pilot jet and the main jet on the EX250F? I want to buy a pair to compare sizes.

Right now my bike runs extremely rich (causing it to eventually die on idle). I figured I might as well see about going back to the stock and working from there, but maybe a jet kit would be a better investment (My ninja has an aftermarket airbox filter and exhaust).

August 17th, 2022, 11:11 AM	#1
notrocketscience ninjette.org newbie Name: Eric Location: Ann Arbor Join Date: Jul 2022 Motorcycle(s): 2006 EX250F Posts: 8	Stock Main and Pilot Jet Sizing Whoever had my ninja before me performed a bang-up job on rebuilding the carbs complete with unlabeled pilot and main jets. Does anyone know the sizing of the stock pilot jet and the main jet on the EX250F? I want to buy a pair to compare sizes. Right now my bike runs extremely rich (causing it to eventually die on idle). I figured I might as well see about going back to the stock and working from there, but maybe a jet kit would be a better investment (My ninja has an aftermarket airbox filter and exhaust).