[mcguyver]

Are your red and black wire positions correct in the replaced connector? If so, then you have chafed ( rubbed, cut or split) insulation leading to a short circuit when you pull the trigger.

As nearly all G&G guns that have crossed my bench have not had fuseholders or fuses in them, you would be basically dead-shorting the battery every time you pull the trigger. The motor will only see a small amount of voltage and current, hence the slow turning.

This is basically a workmanship issue and should be used as an example for all those guys out there who don't take the proper time or care when disassembling/reassembling an AEG. Wiring is easy to nick and problems with dead-shorting a battery can be costly.

Sorry to use you as a bit of an example here, but you'd be surprised how often I see it happen. Just don't get flustered and take your time when working on AEG's and all will work out.