I recently was given a Yose Power e-bike and I'm having trouble getting it working. I got the battery charged up and the display shows my speed when I'm riding, but when I operate the thumb throttle I don't feel any assistance or extra speed. The wires appear to be all connected per the manual I found online and the battery indicator shows a full charge. I have the key and tried turned fully both directions. Any help or ideas would be greatly appreciated, thanks in advance