make sure your wiring is right. If it still doesnt run, send it back.
Ive had problems with Vector motors as well. A good replacement is the trinity duo line of motors and the novak velociti series. Both awsome motors
the true purple and yellow
Team Associated/ Seidel Racing/ Team Scream Racing/ Nike 6.0/ RC Madness
b4.1 novak gtb/ velociti 6.5r
b44.1 lrp sxx tc spec v2/ velociti 5.5r