Turn key,listen to the whine of the fuel pump priming,start bike. If you don't get the sound of the pump priming either it's not getting power or it's dead, I don't think it has a inertia safety switch.
OR
the crank sensor is the only sensor that, if faulty, will not allow a bike to run. However, even with a bad CS the bike should still 'prime' when you turn ignition on and switch to the run position.
( if it doesn't, I'd look for power to the pump)