no fire,a bit lost....

The neutral safety switch needs to be hooked up and working for you to be able to crank the engine over with the key unless you bypass that circuit by jumping the starter relay. The neutral safety switch won't have anything to do with the ignition system however. Two separate circuits but they do have one common component.... the ignition switch. The two circuits also interact in the start position where the "run" circuit is bypassed and full 12V is run to the coil.