Zuk...The reason why your getting the head shake is because of a few reasons...
HorsePower...
The suspension on the '02 is softer and needs to be set up correctly...
The rear spring needs to be turned clockwise 3 turns...
Turn up the rebound, compression and preload...
Drop the forks 1/2 inch...
No more head shake and didnt cost you $300.00 for a steering damper!!!
CrotchRocket