Harley,

Depending on the year, these lifts came with a revolutionary switch. When the engine would crank at a certain speed, the switch would open the LP solenoid to allow fuel in the system. The switch is mounted by the coil. Could be under the battery. It is all electronic, no actual switches or relays. To test, unplug the connector and jump pins 1 to 2 and pins 3 t 5. If lifts starts and run, will need new switch. Good Luck.