| My bike is an early 2003 749s. Very early on in it's life it had ECU and clock related problems. Occasionally it did lose all it's mileage and reset at zero.
ECU and clocks were replaced with updated versions under warranty and all is ok now.
All that said, the dealer, did say that they have a "secret" sequence of pressing buttons etc etc that could reset the clocks .... not sure if that is true or urban myth. | 
Threaded Mode