i had this problem the other day , and had to call the AA out, very very easy to sort out ( that's if it is the same problem as mine lol )
you have flooded the engine due to starting the engine up and not letting it run for a while.
when you try and start the bike , does it make chugga sounds and doesn't kick in..??
if so :
turn the bike on try and start it ( i know it wont start )
turn of the kill switch and turn the accelerator half way keep it half way
turn on the kill switch
the bike should start
leave it running for a good 5 mins before you use it
hope this helps