Ok, you will find that the f4i is two different machines from below
5k and when it wakes up around 6k. Don't make the mistake of thinking you can handle it wound out in second. It can will get a way from you.

Glad to here nothing is wrong with the bike. Nothing worse than buying a lemon.

 

Fixed it! It was actually related to my leaking fuel problem. The overflow tube inside the gas tank had a hole in it. I patched it and I haven't had a problem yet. Its A LOT faster now. I guess it was creating a pressure issue inside the tank...i dont know. but its fixed now!!!!