Cyclo Polisher making unusual noise
So I was excited to purchase a Cyclo on my birthday. It was listed as "new/box opened" and I got it at a discounted price, but upon testing it it runs fine but motor makes a noise when shutting down. Sounds like something I've heard before with an electric motor that was going bad, so I've elected to return this and shell out the cash for a new cyclo. Just curious, is something like this common or ever remedied by oiling the motor? Also, does the housing on new Cyclos typically shine like a well polished old Airstream? This one doesn't quite look that way, and has a number of imperfections.
Thankful for a good return policy, but losing on the shipping...