Mercury 60 FourStroke EFI Formula Race Manual page 16

While activation of the lanyard stop switch will stop the engine
immediately, a boat will continue to coast for some distance
depending upon the velocity and degree of any turn at shut down.
However, the boat will not complete a full circle. While the boat is
coasting, it can cause injury to anyone in the boat's path as
seriously as the boat would when under power.
We strongly recommend that other occupants be instructed on
proper starting and operating procedures should they be required
to operate the engine in an emergency (e.g. if the operator is
accidentally ejected).
If the operator falls out of the boat, stop the engine immediately
to reduce the possibility of serious injury or death from being
struck by the boat. Always properly connect the operator to the
stop switch using a lanyard.
Avoid serious injury or death from deceleration forces resulting
from accidental or unintended stop switch activation. The boat
operator should never leave the operator's station without first
disconnecting the stop switch lanyard from the operator.
Accidental or unintended activation of the switch during normal
operation is also a possibility. This could cause any, or all, of the
following potentially hazardous situations:
• Occupants could be thrown forward due to unexpected loss
of forward motion ‑ a particular concern for passengers in the
front of the boat who could be ejected over the bow and
possibly struck by the gearcase or propeller.
• Loss of power and directional control in heavy seas, strong
current or high winds.
• Loss of control when docking.
GENERAL INFORMATION
WARNING
!
WARNING
!
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