The sprocket should be good then, the rubber dampners are the new ones designed for the 690.I do have a spare nut/washer and I found an orange O-ring. Let me know if I can help out. By the way, what torque are you using? It can get confusing, the bolt torque is much lower than the nut. With the washer bent over it should never fall off, loosen maybe, but not fall off.
Originally Posted by Just_P_Dirty
thanks Tim...i used the same front sprocket all year in korea with no issues. one diffence though the 16t sproket has rubber dampeners on each side and the 17t doesnt. i rode some hard miles on the 17t though.