When I start it, it idles high until I press the pedal, then it goes to a nice idle. Once I drive around for 20-30 minutes and come to a stop, it stops running. It restarts by pushing the pedal to the floor and holding it. Then I have to put it in neutral when I stop and give it some gas. I have the carb lean/rich setting on the line for the setting in between the two. I had it two notches rich, and a friend said to cut it back to even. Maybe I will advance it one notch to see what happens after I install the spacer.??