821946A28 Mercury CARBURETOR (CENTER)

idle shutdown is suspected of incorrect operation.The following background information is related to this procedure:"Idle Shutdown Timer"The "Idle Shutdown Timer" is intended to improve fuel economy by limiting idling time.The "Idle Shutdown Timer" is a "Customer Specified Parameter" that may be programmed for any period from 3 to 1440 minutes.The timer is activated when all of the following conditions are met regardless of the position of the parking brake:
The vehicle speed is 0.
The engine is not in "Cold Mode" or "Dedicated PTO Mode".
The engine is not under load.The timer can be reset by moving the vehicle or the timer can be reset by quickly depressing the accelerator pedal and releasing the accelerator pedal.