Triumph Scrambler 1200 Xc Starting Problem After A Crash

Have you checked / reset the tip over sensor @petr_cerny ? Look at this - it may help
https://www.triumphrat.net/threads/fall-detection-or-tip-over-switch-on-efi-models.159232/

 

Tilt sensor, any fall and the switch cuts the engine and it will not restart, it is a safety feature that avoids the chain/wheel from spinning and potentially causing injury by way of a trapped arm, leg or clothing. If the machine will not restart when upright and level, then you need to remove the tilt switch and shake it side to side as the mechanism may be stuck, if this fails to re start your machine, then the lever inside the unit that cuts the ignition may be broken and a replacement will be needed, these are not expensive and an easy fix, almost all modern machines have a tilt switch for safety reasons.