jetzspeed mate ur a legend, and any one who help'd contributing. I had the same drama with my k5 1000, but i took it to my mechanic and he fixed it for me. I did not see this write up until now the day after. My mechanic did the 3 holes but im unsure if he put the 750 washer in it. It has not done the shudder, gay noise since. And i pillion my gf after riding it to see it if was ok and it did not do it. Im so happy its fixed!