engage blade switch down to make the blades go it cuts off

@Betty Souders Little late but may help some others. I don't know much about an engage switch but I know if you have a mower that has the blade engagement bar on the handle, if the cable gets too loose where it mounts against the engine it will not engage the coil and the engine will die because the coil will loose ground and not fire just like as if you did not press the engagement bar down.. Tighten the cable or bend out where it mounts so the cable tensions up and pulls out enough to engage the coil ground, When they get like this the engine may run if you hold the cable engagement on the handle down all the way but when you let off on the engagement bar just a bit it will die.