Yamaha F150A hour meter

[Cav(J.C.)]

Whilst resetting the Maintenance hours on the 6Y8multifunction meter, somehow I have lost the engine hours.
Have gone through the process of resetting to the default settings, but still no engine hours when I turn the start key.
Any clues fellas?
Thanks,
Cav(J.C.)

[Qlder1]

Sorry can't help, but if you work out how you did it please let me know, I wouldn't mind resetting mine when I eventually go to sell it hahaha.. ;);)