While it may not be a problem to your installation, I did receive a 44 in for some minor repairs this week, and one of the issues was an unstable idle....upon first inspection, I did discover a plastic tie wrap that was used to hold all wiring, fuel & gas lines together upon exiting of the FOD. The fuel line was pinched almost entirely flat...I suspect the pump would surge, the fuel line would expand, motor would surge, pump would slow...and the process would start all over again. I'll post my findings in the next day or so.