Reply To: Hyosung gt comet 125 2003year Carb main jet help Jul 9, 2024 at 3:19 PM #14069 Nimbi👤 Member🖊 Topic Author Topics: 1Replies: 2 i changed them at a motorcycle shop and asked the mechanics i woork with and they said the back plug the one thats on the first 2 pics wasnt tightent at all. I changed them and now the bike runs a lot better