Originally Posted by DirtDevil101
Well...it running on 1/2 choke and not running without it tells me your pilot (idle) jet needs attention. It's tiny with tiny holes and is usually the first thing to plug in a carb. Your stumbling also sounds carb related...I think a good cleaning and re-set to baseline is in order...
I pulled off the float bowl and cleaned inside there, then I unscrewed what I was assuming was the main jet and cleaned it out, I'm not to familiar with these older models. Is there multiple jets on these carbs?