I agree with Richard, however there was a time when I experienced what you describe. This was after I installed free flowing exhaust and did not bypass the O2 sensors, causing the bike to run in "Closed Loop". I sorted this with the tuneboy program. I am not familiar with tune edit sorry. I would also remove the tank and see if maybe there is a kink in a fuel line or something.Run a good injector cleaner through it as well.
Good Luck
