I just finished putting a 2001 gsxr 600 back together after a friend flipped it. Well when I crank it up after about 5 seconds the engine opens wide up and I have to shut down before it blows. I checked the throttle cables and fast idle cable and those seem fine. Any idea what could cause this problem? I am new to fuel injected bikes and have no idea what to check next. The bike only has 1498 miles on it and the damage was all cosmetic so I have not replaced any engine parts or wires other than the turn signal relay.