joker, I make sure to have the air cleaner on as a spark arrestor. I lost part of an eyebrow and some of the hair on my left arm in a nasty backfire when I first got my truck.

Thanks Wrenchbender, I'll look at all of that this weekend. Like I said, there wasn't any spray of gas when I moved the throttle shaft from idle to full throttle several times, only a slow dribble. Having read all of your advise, I'm leaning towards the vertical bar having come off of the throttle shaft because it only started doing this maybe 2-3 months ago, before that it was as good as good can get. I'm still going to check everything in case its something else a little deeper inside the carb.