The starting system includes a battery, a starter, a traction relay, an ignition switch, an interlock switch (only on vehicles with automatic transmission) and wires.
When the starter is turned on, current from the battery begins to flow through the winding of the starter traction relay, the relay armature is pulled in and the relay contacts close. At the same time, the relay armature moves the overrunning clutch with the gear through the lever. The overrunning clutch hub rotates on the screw splines of the starter shaft together with the gear, which facilitates its engagement with the flywheel ring gear. A current flows through the closed contacts of the traction relay, which feeds the stator and armature windings, and the starter armature begins to rotate together with the hub and freewheel.
After the engine starts, the gear speed exceeds the speed of the starter armature, the freewheel rotates freely and no torque is transmitted from the flywheel to the starter shaft. After releasing the ignition key, the power supply circuit of the traction relay winding opens, the armature of the traction relay is pressed back to its original position by a spring, the relay contacts open and the drive gear disengages from the flywheel ring gear.