Gun fire auto in semi mode?

[Neillothian]

ok so i upgraded my internals( spring guide, piston, cyclinder and hi speed motor) i also changed to lipo battery( 7.4 2200).
when testing the gun i found the switch assem to be at fault so i replaced that too. now i have also replaced the selector switch has their was no current from battery to motor( it was getting lost between switch assem and selector switch ?) now im getting current with new selector switch**but the gun only fires in auto in the semi position and nothing in full auto, WHERE AM I GOING WRONG!!!
any ideas welcome lads
cheers neil
The gun is src m4a1 internals are shs and switch assem/selector switch are element.

[deanfirst]

Re: Gun fire auto in semi mode?

2009429107981851.jpg