THANK YOU all for replying!!!
In fact, I didn't get the chance to do all the common sense maintenance after I bought the bike. I'll have it serviced (oil change and other fluids) this week and I will let you know if this solved the problem.
The incident was kind of shocking so I thought there...
I just bough a 2008 Fz6 and only done a few hundred miles on it, it has about 4500 now.
I was on the highway, and after riding for 10 minutes at about 70mph, I had to slow down for a traffic jam. The engine was kind of hot, and I was doing 20-30 mph. Suddenly the gauge display started flashing...