Starter Does Not Disengage

Starter Improperly Installed: Install starter, tighten to correct torque specifications. See STARTER MOTOR under REMOVAL & INSTALLATION.
Starter Relay Faulty: Test or replace if necessary. See STARTER RELAY under TESTING.
Ignition Switch Faulty: Test or replace if necessary.
Starter Assembly Faulty: Check components, if check is ok, replace starter assembly.
Faulty Teeth On Ring Gear: Inspect teeth, rotate flywheel 360°, replace if damaged.