Generally, for an item of that amount, no. But, depending upon the specific facts and what the texts say, maybe. I would advise you consult an attorney for an in-depth discussion about your specific facts to determine whether you have any available legal recourse. Best wishes.
Maybe...but probably not. In NC verbal contracts are enforceable except for those enumerated under the "Statute of Frauds." This series of laws requires certain contracts to be in writing. One of those contracts is the sale of good for more than $5,000.00.
Here your "good" the motorcycle is worth far more than the $5,000.00. You can't sue in Small Claims as this would not be heard there, you would have to go to District or Superior Court and most likely need to hire an attorney to do so. You may have enough in your tests to prove a contract, but without seeing them, I cannot evaluate if you have enough to show a contract. You should see an attorney before even considering suing.