sputter engine on 500 cc Xciting

[Lalita]

My Xciting  500 started to sputter and not accelerate after driving for 50 miles or so.  Does anyone know what the cause is?

[ce]

The diaphragm in the top of the carburetor may have a small tear or pinhole in it.

Or you may have a vacuum leak in one the the hoses or fittings, check them all for a nice tight fit.

Take off the seat bucket and look at all the wires and fittings.

[MaryK]

If your scooter is still under warranty, why not take it to a dealer for repair?

If not, then consider the fuel and spark plug.
Does the sparkplug need changing (<1000 miles on it)
Is the air filter dirty or have a nest in it from storage ?
Is the fuel old and has it contaminated the carb ?  If so, get new fuel and try a fuel system cleaner like SeaFoam

providing more info about the scooter and also what you do to try to solve the problem will help other to help you.

scoot safely,