I would also check the front end for notching in the steering bearing or possibly loose. Jack the bike up securely and pull up on the front forks to see if you feel movement in the steering head. Also while jacked up and see if you feel any roughness when turning left and right slowly. I haven't dealt with this myself to much, but others on the board have experience with this and can direct you better to testing it and repair if needed. It is my understanding that sometimes this can be fixed by re torgueing with the proper procedure. Good Luck and enjoy the ride. Valk's are a riders dream come true as far as I am concerned.
