Hi all! I always had a strange phenomenom on my carb sync tool... Is it normal that the needles switch back and forth between the value say 3, and the value 0 like 10 times by second. Crazy needles.... or normal ? Hope explanation is clear, sorry for poor english + my carbs desync very often. Does that mean my carb line has a problem (sucking air then not sucking then sucking air 10x/second) ? Kawa ZZR600 4 carbs 16 valves 4 strokes, Kehein carbs Regards!