After I installed my new Acerbis 5.8 tank on my 650L, the engine now dies on occasion for no apparent reason. I just pulled the plug and it is soaked in gas and DARK/black. It ran perfectly before the tank swap, so it aint my jetting. Anyway, on the my questions. I have both petcocks set to the open/on position, would that cause the carb to suck in too much fuel and flood it? Should I run the new tank with one petcock set to open and the other closed until needed? The bike only has 7500 miles on it and its a great step up from my old KLR250.