i have been trying to turn up my VE pump some more and i cant get the fuel screw on the back or the pump to turn at all i have been trying to back it out to pull the collar off so i can adjust it more, I also have been trying to get the starwheel to turn and have tried twisting a screw driver in there as well as some pliers and have only managed my mangle the teeth. So does anyone have any ideas? or tips?