How much adjustment is actually in that screw? In other words, is the screw still metering fuel beyond 2 turns or is it basically wide open? I was playing with mine over the weekend and it seemed like that past 2 turns the screw had no effect on the adjustment while the bike was running. My pilot is stock, and it seems like the bike wants more at idle. My thought about this is maybe the screw was never intended to be more that 2 full turns out, which may have caused the fuel screw to fall out simply because it was barely hanging in there in the first place like what happened to richb.