Numark PT 01 Scratch motor is making loud ticking sound

Hello everyone...I have been scaching 12" and have been using the technics 45 adapter when scratching 7" records and I hope that that's not the reason why the ticking sound happens every time i raise the tonearm. Is the ticking sound normal or did i damage it? Thx in advance
1) does any of your guys' motor make a ticking sound when the motor is activated?
2) Can you scratch 12" records?
3) I have that roulette 7" scratch record coming in the mail with the big hole and i was wondering if using a standard technics 45 adapter ruins the numark at all ?
Thanks in advance
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