The video shows how to use Hammerhead engine flush to remove scale deposits which are causing the motor to overheat. The overheat alarm would go off at higher RPMs. I show a simple setup to flush the motor. Run the flushing solution for 6-8 hours.
This overheat alarm would sound whenever this was run at high RPMs. It would be OK at lower RPMs. After the flushing you can run the motor wide open without any problems.
