Under the side cover, check the ignition pickup for correct spacing and make sure all hardware is tight. If that checks out, then remove carb bowl and check your fuel jets, that small hole will clog easily, especially if the bike has been siting for a while,put in fresh gas, new spark plug, and give it a shot.
I don't recommend ether(starting fluid) to start a motorcycle, but if the bike has been sitting for several years sometimes it helps
