[Flatlander]

Probably not. It's just a bit tricky to run the wires properly. You have to 'loop' the positive (usually red) wired around the motor shaft to the back of the pistol grip - this usually means you have to make a U-shape on either side. Make sure both wires are running beside each other and straight at the back of the pistol grip. Some times it takes a few tries to get the positive wire to loop around properly. Make sure you have that nice bounce or else your motor will not seat right and you might chew up your positive wire if/when it spins.

When you tried to pull the trigger, did anything happen (could you hear anything)?

Plug in your motor outside of the pistol grip and pull the trigger and see if it spins.