2011 Derbi Senda DRD Pro 50 SM "flood image" Questions

...when you're starting. If 10 kicks fail. Wait for the fuel to dry out for a few minutes, easy to flood with repeat failed starts... Check the fuse to see if it has burned out. Consult the manual

I have a 1997 YZ250, 2 stroke. it ran well for a fair while. took air cleanerout, cleaned and re-oiled it. all back together and it won't start! continually flooding and fouling plug. even tried tow ...