Pride Victory mobility scooter throttle pot 5k

I have a Pride Victory 3 scooter. I need to secure the throttle pot 5K,and also the controller. the system uses a 24 volt (twin 12 volt batteries. the throttle pot controls the forward and reverse motion. the more you turn the pot the faster the motion.
I having trouble figuring out the system. I don't know whether the motor, controller,or another part is defective. Can I hot wire the motor directly from the batteries and see if the motor will turn?

I need help...I am confined to a scooter and have to work on it while sitting it at the same time..
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