By doing what you believed to be the best thing, may have had a negative effect on running your machine, or it may not have. let's say that you did have water in your fuel tank and that you didn't get it all the way out. Water isn't absorbed into clear gas like it is with fuel with alcohol. When I have cleaned a tank that had water in it and the person uses clear gas, I'll either have him use ethanol gas or add it for the next tank anyways. These tanks a contorted enough that if you didn't have the luxury of removing and completely drying, there is probably some water remaining. Remember, your fuel is picked up from near the bottom and pulled upward out of the top of the tank. Water is heavier than fuel and will be at the bottom.
So what should you do now? Remove the line at the filter and run the line into a catch pan and look for water. Water in clear gas puddles up. Water in regular fuel will be cloudy and will puddle only when the alcohol can't "hold" anymore. You see water, it is time to clean/ drain the tank. If you can't maintain a flow, it is time to clean the tank of whatever debris is inside.
Engines that stall on slopes many times do so from a puddle of water in the carburetor bowl that hits the main pickup. So you may have water in the bowl. That is why the suggestion to remove the solenoid on the side of the carb bowl and let that drain into a catch pan. Once again, when you see water, clean the system the best you can and use a tank of regular gas w/ alcohol. That's because the meniscus of the water is broken and the water is more evenly distributed. Perfect, no- but for a tank full of running its NBD.