PowerTec 25A Owner's Manual page 20

Basic components
If the engine temperature rises too high, the
warning device will activate.
Activation of warning device
The engine speed will automatically de-
crease to about 2000 r/min.
If equipped with an overheat warning indi-
cator, it will light.
The buzzer will sound (if equipped on the
tiller handle, remote control box, or main
switch panel).
If the warning system has activated, stop the
engine and check the cooling water inlet for
clogging.
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