LCT AK reassembly help.

[OTH21]

Put together an LCT AK after swapping gearboxes between RIFs, after faffing around getting the selector in the right place for semi/auto safe. I have the issue that when going from Semi back up to automatic the trigger depresses but the motor does not engage - to get engagement I have to go back to safe and then back to auto/semi. 

 

Any ideas? 

[mightyjebus]

make sure the selector plate and the gear teeth on the other side of the gearbox are meshing up correctly. you might have lost a tooth from the selector plate.

[DerDer]

Is the screw on the selector tightened sufficiently?  Here's a link to various causes of selector problems

https://tacticalparts.com/blog/diagnosing-version-3-selector-switc/