Does the motor turn over when you hit the start button?
If you just hear a Click, click, click without the motor turning over, then your battery voltage is low and will need to be charged.
If your motor actually swings but doesn't fire up, chances are good that it is the fuel pump regulator that had blown.
R1200GS 08 09 K25
Part number 16 14 7 720 776 is what you will need.
