Good point. Any runners I list as parts saws. Show a video of it running and say no returns.
I sold an almost new 6401 years ago. The buyer claimed it didn't run when it got to him and that the shop he took it to charged him $150 to put a new carb on. He wanted me to send him $150 to cover that. I told him to put the old carb on and send it back at his expense and I'd refund his money. He wasn't real fond of that plan.