Yamaha Big Bear 400 Electrical Problems

What i had to do was remove one of the ball plugs on the outside of the carb and clean. 1999 yamaha xv1600 road star (xv16al, xv16alc, xv16alt, xv16altc) yamaha model code 4wm. .yamaha big bear professional 400 4x4 and it won't start.there is spark and its getting gas.we cleaned the carburator,put in a new plug,changed the oil and it still won't start.some.yamaha wr 400 f 2000 model and i'd like to know if there's any faults i should know about any problems they have?
yamaha big bear 400 electrical problems