My bmw r 1200 gs won.t start solenoid clicking but not turning engine over

Find the broken wire and replace it. You have identified the problem, fix it yourself or take it to a mechanic to have them fix it.

Clicking sound is the solenoid working, starter won't turn over the engine as the brushes are worn out or not connecting with inside of the starter through a build up of waste carbon dust.

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.

Well the good news is the click indicates the switch is working, when you press the switch the 2poles on the solenoide are joined together alowing the current to the starter,bridge the wires at the solenoide this should put power directly to the starter you wont need to press the start switch, if the engine does not turn over check the connections to both the battery and starter motor,

yep!! check your battery cable connections and the connection at the starter solenoid