I have a Dixie Narco, not sure model number, but when it dispenses from one of the slots, the motor does not stop in the correct place, so the next time money is put in, it automatic drops that one with no section needed. Looks like it just does not stop quick enough, coast too far, only one motor does this, just so happen, the machine uses two slots for one button, so I just do not put any cokes in this one, and the other one works fine. The problem is, this is my best seller, and it runs out of it before I get back to it, so I would like to be able to put double of it in. Looks like it has had coke sprayed on it some time, can it be cleaned or do I just need to replace it? How hard are they to pull out of the machine?