2002 - 1800 VTX-R sputters, spits and runs very rough for about 5 minutes, then runs just fine. I have installed and removed several fuel management devices, so I thought I created shorts in the wiring coming from the computer. I have tried the ground fix program. My assumption is that when it warms up, the conductor expands and the wire no longer shorts out. It could also be a sensor. Any ideas?