Originally Posted by mgorman
Water will do that. Some carbs the main jet sits lowest where water lurks. A plugged main will do it too.
Did you recently over oil the air filter?
It was run out of fuel and switched to reserve for the first time since I have owned it. I assume that there was some crud hanging out in the bottom of the tank that got sucked into the reserve tube since it's lower. We also added fuel from a questionable source. We pulled the carb on the side of the road and blew the junk out of it, I'm just guessing there is another hunk of crud or spot of water in there someplace.