I had an engine light come on after I had the tank up. Started it ran like crap engine light on. Cleared light with a reader and everything was smooth as silk. Ran through a couple more tanks of fuel no problem. Popped up the tank again and the same thing happened. I think it was that I took the advise of making sure the tank was low before lifting. I think that this caused the fuel pump to empty and give a low pressure code putting the motor in limp home mode. It puts you way down on power, acceleration and feels very heavy.
From everything I have read limp home mode could also be called Harley mode!!!!