MV Agusta 800 DRAGSTER 2014 Manuel D'utilisation page 148

Press the "OK" key for less than three seconds;
the display will ask you to confirm cancellation of all
the data present in the memory.
By pressing the "OK" key for more than three sec-
onds, all the previously acquired times will be can-
celled. By pressing the "SET" key for less than three
seconds, the cancellation procedure will be interrupt-
ed.
Once all the data have been cancelled, press the
"SET" key to exit the "ALL LAPS RESET" mode and
to return to the "CHRONO" mode.
OPERATION
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