New owner about to sell......questions for the experts.

[NHCB_imp]

I notice vibrations in machines so much so I had to sell and take a big loss on a new snowmobile that made my hands and feet go numb. I have no complaints about the CB. My 919 bothers me a little. So I wonder what could be or if something could be different with your bike. Maybe Ack is right about the oil. Im currently running 10w40. But I don't recall any vibrations with the dealer oil before the first oil change.