Hello!
I have a BMW K1200LT, 2001. Yesterday after give one turn arrond my city, stop my moto. When i went to start my moto... my moto do not power on!! The key do not nothing. Maybe is something relay... but i have some dificult to know what relay be!
I need help... please.

Thankyou!!
João Sousa

First step is to check all the fuses. Measure them with a meter, do not rely on a visual check

If all the electrics remains stone dead when you turn the ignition on it could be
be that you got a dead battery, bad connection(s) at the battery wires/terminals,
bad connection(s) at the heavy terminals in front of the battery....check that
they all are clean and measure the voltage.

If all OK check the ignition switch.....connector you find in the electrics box/
housing under the fake tank....down, front, RHS, second connector from the
top (yellow).....red wire is input, green is output...measure voltage, while
switching ignition on/off.

Hello!
Thankyou for every help.
The problem was bad contact in ignition key assy.

Thankyou,
João Sousa