window motor problem


I have a problem with my electric window on my Sportrak i have taken it all to pieces including the motor itself what i don't understand is if i put a live to the motor should it work i have had it working but only when i had it going to the switch and by twisting the switch heavily but i have had the switch to pieces and there is no problem with that so how comes it will not go with a live to the motor. Can someone help me with this does the switch have to have something that has to work for the motor to work because the motor has to be alright.