I have a 2000 GSXR 750 (stock motor and exhaust) and it seemed to start acting up a little the other day!
It kinda sounds like a little exhaust leak or putter out the header on the left side kinda or something! Maybe could it be a dead cylinder (miss fire) as it is bogging sometimes down low! When you get the revs up it progressively starts a really high vibration of some kind (feel it through bars and tank)!
I don't have any codes or FI light staying on! Does anyone have any thoughts on this? I would appreciate your comments, as I'm trying to trouble shoot myself.