If it just died you need to
Check battery bolts with a 10mm wrench. No your hand is not good enough. If the battery is 3 years old it might be shot.
If battery is good and you have headlight but bike will not start your fuel pump might be shot.
Check to see if you have spark.
Tell us more how it will not start does it turn over.
Please add your state and model of bike you have. Click user CP @ top of page and then far left click edit signature. Thanks