Reply To: Carbs removal GV250 2004/5 Nov 24, 2022 at 7:34 AM #9119 Sergej👤 Member Topics: 0Replies: 1 good afternoon. aguila 125. with a standard jet (87.5), the quality screw is unscrewed by 2 turns. how much you need to unscrew the screw if you put the jet 90 ???