Please could you help me I ordered a new Kato 11-103 when it arrived it had the wrong coupling it was like a hook (sorry I don't know the name ) the coupking I want has some wire that lifts ( sorry the name I do not know again ) what Kato motor should I ask for as I want a KATO 11-103 but what type of coupling should I ask for or name name KATO 11-103 ??????, if you can help many thanks Robin