i just bought a 96 gsx last year and it ran good when i got it then at the end of the year it started to mess up at wide open throttle after ridding it for about 30 min it will fall down from 6500 to 4500 rpm and then go back up to 6500 and fall back down to 4500 several times. it only happens at wot. is this an exhaust leak? or mabee a carb problem?


