ENGINE HESITATES/SPITS WHILE RIDING AT ALL SPEEDS

What has been done to it lately? Suspect that first if anything has.
Probably the fuel has gone bad, after sitting all winter, you did put fresh gas into it right? I am guessing water from condensation and the ethanol gas. Don't use any "drygas" it will just put more alcohol in the gas tank which you do not want. You can try a product called "StarTron" too if the fresh gas does not help. Last thing I know is a product available at the motorcycle shop comes in a solid black plastic bottle that will make the water in the gas dissolve back into the gas so it can be burned, but I can not remember the name of it. All the shops up here where I am have it. And it was developed specifically because of the condensation/water problem the ethanol gas causes with motorcycles.
Pick up something called Sea Foam at WalMart and put some it the gas to help clean out the passageways and jets. The new ethanol gas is real bad on scoots.
Hope this helps.